File dolly-0.64.2.obscpio of Package dolly

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File dolly-0.64.2.obscpio of Package dolly

07070100000000000041ED000000000000000000000001623B5E1400000000000000000000000000000000000000000000001500000000dolly-0.64.2/.github07070100000001000041ED000000000000000000000001623B5E1400000000000000000000000000000000000000000000001F00000000dolly-0.64.2/.github/workflows07070100000002000081A4000000000000000000000001623B5E14000000DC000000000000000000000000000000000000002900000000dolly-0.64.2/.github/workflows/c-cpp.ymlname: C/C++ CI

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

jobs:
  build:

runs-on: ubuntu-latest

steps:
    - uses: actions/checkout@v2
    - name: make
      run: make dolly
  
07070100000003000081A4000000000000000000000001623B5E14000013D3000000000000000000000000000000000000001700000000dolly-0.64.2/CHANGELOGDolly: A programm to distribute partition-images and whole disks
over a fast, switched network.

License: GNU General Public License.

History:

V 0.64.2 23-MAR-2022 Antoine Ginies <aginies@suse.com> Christian Goll <cgoll@suse.com>
  improved Makefile
  add a doly.conf configuration file
  add a firewalld rule
  typo fixes
  bug fixes
 
V 0.64.0 22-MAR-2022 Antoine Ginies <aginies@suse.com>
  add systemd socket support to start dolly clients
  nodes on demand from a dolly server

V 0.63.6 13-OCT-2021 Antoine Ginies <aginies@suse.com>
  fix hostname resolution is not done in case of usage
  of an external configuration file (bsc#1191613)
  fix -Werror=format-security

V 0.63.5 07-OCT-2021 Antoine Ginies <aginies@suse.com>
  improve help usage information

V 0.63.4 11-SEP-2019 Christian Goll <cgoll@suse.com>
  fixed warnings for gcc 11

V 0.60 11-SEP-2019 Christian Goll <cgoll@suse.com>
  Added pure commandline feature, so that there is no need for
  a dolly configuration file. Also output to stdout is now possible.

V 0.59 09-APR-2019 Antoine Ginies <aginies@suse.com>
        Cleanup warning building
  Change default output in non verbose mode (get some stats)
  Add -b option to specify the TRANSFER_BLOCK_SIZE
  Add -u to specify the size of buffers for TCP sockets

V 0.58C 23-MAR-2005 David Mathog <mathog@caltech.edu>
       Changed TRANSFER_BLOCK_SIZE to T_B_SIZE and replaced all
       explicit 4096 with this define.  Similarly, replaced all
       4095 with T_B_SIZEM1.  This allows a test to see if increasing
       this from 4096 to 8192 speeds anything up.  Netpipe suggests
       it should.
       
       Added a flag -n = 'no sync'.  When dolly waits for sync
       on an 80 Mb file it can take twice as long for the transfer
       to finish.  When dolly exits the disk light does come on, so
       it appears that the data flushes to disk asynchronously anyway
       when sync() is omitted.

V 0.58 2-NOV-2004 David Mathog <mathog@caltech.edu>
        (plus some minor cleanups by Felix Rauch)
        Added changes to allow "/dev/stdin", "/dev/stdout" processing for
  input file and output file. "-" would have been used but
  that already has some other meanings in this program.
  This makes it easy to use dolly in a pipe
  like this:
  
  master:  tar cf - /tree_to_send | dolly -s -f config
  clients: dolly | tar xpf -
  
  In this mode compression should be disabled. That allows
  compression option to be used on each machines' pipe.
  
  Redirected messages which used to be to stdout to stderr.
  Also, since in some modes the main node knows the slave node
  names, but they don't, this information is put into the
  environment variable MYNODENAME and retrieved via
  getenv("MYNODENAME") in the program. If this succeeds the
  node will not even try gethostbyname(). For compatibility
  with other systems, dolly also checks the "HOST" environment
  variable.
  
  Default to TCP_NODELAY. Set large input/output buffers.
  Ignore errno EINTR on select on client. Option to suppress
  the warning (there can be a lot of them!).

V 0.57 8-MAY-2003 Felix Rauch <rauch@inf.ethz.ch>
       Splitted infiles and outfiles are now possible.
 Parameter 'hyphennormal' treats '-' as normal character in hostnames.

V 0.56 15-JAN-2003 David Mathog <mathog@mendel.bio.caltech.edu>
       Added parameter -S. Acts like -s except it doesn't
       check the hostname. Handy when multiple interfaces
       are present.

V 0.55 25-JUL-2001 Felix Rauch <rauch@inf.ethz.ch>
        Added parameter for timeout (-a) and version (-V).

V 0.54 30-MAY-2001 Felix Rauch <rauch@inf.ethz.ch>
        Fixed a bug with config-files larger than 1448 bytes.
	
V 0.53 25-MAI-2001 Felix Rauch <rauch@inf.ethz.ch>
        Allowed empty "dummy" parameter
   
V 0.52 25-MAI-2001 Christian Kurmann <kurmann@inf.ethz.ch>
        Integrated primary network hostname add to change primary device

V 0.51 21-MAR-2001 Felix Rauch <rauch@inf.ethz.ch>
        Extended dummy-mode with time limit
  Integrated use of extra network interfaces
 
V 0.5  March-2001 Christian Kurmann <kurmann@inf.ethz.ch>
        Started extensions to dolly for switch-benchmark.

V 0.4  25-11-2000 Felix Rauch <rauch@inf.ethz.ch>
        Started to include the possibility to write compressed outfiles.

V 0.3  01-FEB-2000 Felix Rauch <rauch@inf.ethz.ch>
        Dolly now supports tree topologies with any number of fanouts.
  (Trees are usually slower, so this change won't speed up dolly.
  I just implemented it to proove that it's really slower.
  See our Paper for EuroPar 2000 on our publications site
  http://www.cs.inf.ethz.ch/CoPs/publications/)

V 0.2  02-JUL-1999 Felix Rauch <rauch@inf.ethz.ch>
        Some improvements...

V 0.21 31-JAN-2000 Felix Rauch <rauch@inf.ethz.ch>
        Status information backflow, no longer a ring topology.

V 0.1  xy-MAR-1999 Felix Rauch <rauch@inf.ethz.ch>
        First version for benchmarks required. Presented results
  at Cluster Computing 99, Karlsruhe, Germany
07070100000004000081A4000000000000000000000001623B5E140000894D000000000000000000000000000000000000001500000000dolly-0.64.2/LICENSE                    GNU GENERAL PUBLIC LICENSE
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07070100000005000081A4000000000000000000000001623B5E14000007DB000000000000000000000000000000000000001600000000dolly-0.64.2/MakefileCXX = g++
CC = gcc
CFLAGS += -std=gnu11 -s -O -fPIE $(RPM_OPT_FLAGS)
WARNINGS = -Werror -Wall -Wextra -pedantic-errors
LDFLAGS =
LIBRARIES =
BUILD_DIR = ./build
SOURCES = $(wildcard *.c)
OBJECTS = $(SOURCES:%.c=$(BUILD_DIR)/%.o)
DEPS = $(SOURCES:%.c=$(BUILD_DIR)/%.d)
# Can 
DEBUGFLAGS=-ggdb
VERSION=0.64.2

PREFIX ?= /usr
BINDIR ?= $(PREFIX)/bin
SBINDIR ?= $(PREFIX)/sbin
SYSTEMDDIR ?= $(PREFIX)/lib/systemd/system
FIREWALLDDIR ?= $(PREFIX)/lib/firewalld/services
DATADIR ?= $(PREFIX)/share
MANDIR ?= $(DATADIR)/man
SYSCONFDIR ?= /etc

EXECUTABLE = dolly

all: $(EXECUTABLE) man

tar: clean
	mkdir $(EXECUTABLE)-$(VERSION)
	find . -maxdepth 1 -type f -exec cp -a {} $(EXECUTABLE)-$(VERSION) \;
	tar cfj $(EXECUTABLE)-$(VERSION).tar.bz2 $(EXECUTABLE)-$(VERSION)
	rm -rf $(EXECUTABLE)-$(VERSION)

$(BUILD_DIR)/%.d: %.c
	@mkdir -p $(dir $@)
	$(CC) $< -MT $(BUILD_DIR)/$*.o -MM -MF $(BUILD_DIR)/$*.d

$(BUILD_DIR)/%.o: %.c
	@mkdir -p $(dir $@)
	$(CC) $< -o $@ -c $(CFLAGS) $(DEBUGFLAGS) $(WARNINGS)

$(EXECUTABLE): $(OBJECTS)
	@echo "Building $(EXECUTABLE)"
	$(CC) $(LDFLAGS) $(OBJECTS) -o $@ $(LIBRARIES)

.PHONY: clean

clean:
	rm -rf $(EXECUTABLE) $(OBJECTS) $(DEPS)
	rm -rf $(EXECUTABLE)-$(VERSION) $(EXECUTABLE)-$(VERSION).tar.bz2
	rm -rf dolly.1*

dolly.1.gz:
	@echo "Building man page"
	pandoc --standalone -t man README.md -o dolly.1
	gzip dolly.1

man: dolly.1.gz

install:
	install -d -m 0755 $(DESTDIR)$(SBINDIR)
	install -d -m 0755 $(DESTDIR)$(SYSTEMDDIR)
	install -d -m 0755 $(DESTDIR)$(FIREWALLDDIR)
	install -d -m 0755 $(DESTDIR)$(SYSCONFDIR)
	install -m 0755 $(EXECUTABLE) $(DESTDIR)$(SBINDIR)
	install -m 0644 dolly.service $(DESTDIR)$(SYSTEMDDIR)
	install -m 0644 dolly.socket $(DESTDIR)$(SYSTEMDDIR)
	install -m 0644 dolly_firewall.xml $(DESTDIR)$(FIREWALLDDIR)/dolly.xml
	install -m 0644 dolly.conf $(DESTDIR)$(SYSCONFDIR)
	-test -e dolly.1.gz && install -d -m 0755 $(DESTDIR)$(MANDIR)/man1
	-test -e dolly.1.gz && install -m 0644 dolly.1.gz $(DESTDIR)$(MANDIR)/man1/

-include $(DEPS)
07070100000006000081A4000000000000000000000001623B5E14000046CF000000000000000000000000000000000000001700000000dolly-0.64.2/README.mdDOLLY
=====
A program to clone disks / partitions / data.
Take same amount of time to copy data to one node or to X nodes.

SYNOPSIS
========

dolly \[**-f** config\]

dolly \[**-I** infile\] \[**-O** outfile\|-\] \[**-H** hostlist\]

dolly **-v** **-r** 40 **-S** SERVERIP **-H** IPNODE1,IPNODE2,IPNODE3 **-I** /dev/vdd **-O** /dev/vdd

DESCRIPTION
===========

Dolly is used to clone the installation of one machine to (possibly
many) other machines. It can distribute image-files (even gnu-zipped),
partitions or whole hard disk drives to other partitions or hard disk
drives. As it forms a "virtual TCP ring" to distribute data, it works
best with fast switched networks.

As dolly clones whole partitions block-wise.

OPTIONS
=======
If used without a configuration file following three commanline options must be
set:

**-I** FILE : FILE is used as input file.

**-O** FILE\|- : FILE will be used as output file, if '-' is used as FILE, the
output will printed to stdout.

**-H** HOSTLIST: A comma seperated hostlist, where then the first host of the list
is used as firstclient and the last host  as lastclient, like in the
configuration file.

Following other options are:

**-h**
 :   Prints a short help and exits.

**-V**
 :   Prints the version number as well as the date of that version and exits.

**-v**
 :  This switches to verbose mode in which dolly prints out a little
    bit more information. This option is recommended if you want to
    know what's going on during cloning and it might be helpful during
    debugging.

**-s**
 :  This option specifies the server machine and should only be used
    on the master. Dolly will warn you if the config file specifies
    another master than the machine on which this option is set.
    This option must be secified before the "-f" option!

**-S**
 :  Same as "-s", but dolly will not warn you if the server's hostname
    and the name specified in the config file do not match.

**-R**
 :  resolve the hostnames to ipv4 addresses

**-6**
 :  resolve the hostnames to ipv6 addresses

**-q**
 :  Usually dolly will print a warning when the select() system call
    is interrupted by a signal. This option suppresses these warnings.

**-c**
 :  With this option it is possible to specify the uncompressed size
    of a compressed file. It's only needed for performance statistics
    at the end of a cloning process and not important if you are not
    interested in the statistics.

**-d**
 :  Connect to systemd socket on clients nodes to start the dolly 
    service (port 9996). This option only available on command 
    line.
    **Warning !!**
    By default if you use the dolly.socket, the dolly.service start
    as root user, which means that you can delete all your nodes
    data easily while pushing into the ring data in the wrong place.
    There is **NO AUTH** process, which means that all nodes with a
    dolly socket open and listed as a target from the server will get
    the data.

**-t** <seconds>
 :  When in dummy mode, this option allows to specify how long the
    testrun should approximately take. Since the dummy mode is mostly
    used for benchmarking purposes and single runs might result in
    different speeds (especially with many machines and bad switches
    or with small TCP segment sizes), it's more convenient to specify
    the run-lenght in seconds, as the benchmark-time becomes more
    predictable.
    
  **-f** <config file>
 :  This option is used to select the config file for this cloning
    process. This option makes only sense on the master machine and
    the configuration file must exist on the master.

**-o** <logfile>
 :  This option specifies the logfile. Dolly will write some
    statistical information into the logfile. it is mostly
    used when benchmarking switches. The format of the lines in the
    logfile is as follows:
    Trans. data  Segsize Clients Time      Dataflow  Agg. dataflow
    [MB]         [Byte]  [#]     [s]       [MB/s]    [MB/s]

**-a** <timeout>
 :  Sometimes it might be useful if Dolly would terminate instead of
    waiting indefinitely in case something goes wrong. This option
    lets you specify this timeout. If dolly could not transfer any
    data after <timeout> seconds, then it will simply print an error
    message and terminate. This feature might be especially useful for
    scripted and automatic installations (such as "CloneSys"), where
    you don't want to have dolly-processes hang around if a machine
    hangs.

**-n**
 :  Do not sync() before exit. Thus, dolly will exit sooner, but data
    may not make it to disk if power fails soon after dolly exits.

**-u** <size>
 :  Specify the size of buffers for TCP sockets. Should be a Multiple
    of 4K.

**-b** <size>
 :  Option to specify the TRANSFER_BLOCK_SIZE. Should be a multiple of
    the size of buffers for TCP sockets.

**-r** <n>
 :  Retry to connect to mode <n> times

CONFIGURATION FILE
==================

One can use either us the appropriate commandline options (-i,-o and -H) or a
configuration file for the cloning process is needed. Its format is strict, but
easy. It contains the following entries (note that the order of the entries is
fix): (The text after "Syntax:" explains the syntax of the entry, the lines
following "EG:" are example lines)

1. The file/partition you want to clone, preceeded by the keywords
   "infile" or "compressed infile" in case of a compressed image.
   This file or partitions needs to be available on the master only.
   Dolly will warn you if you try to use a compressed infile which
   does not end with ".gz". The compressed keyword is important so
   that the master can inform the clients when they have to use gunzip
   before writing a file. The optional keyword "split" after the
   filename instructs Dolly to read all files with the given name and
   an appended number, separated by an underscore.
   Syntax: [compressed] infile <input file or device> [split]
   EG: infile /dev/sda10
       Will just send the partition /dev/sda10 to all clients.
   EG: compressed infile /images/cloneimages/sda10_WinNTRes.gz
       Will send the given file compressed to all the clients,
       instructing them to uncompress the image before writing it.
   EG: infile /images/cloneimages/sda split
       Will send all files of the form /images/cloneimages/sda_<number>
       in order to the clients.
   EG: compressed infile /images/cloneimages/sda.gz split
       Will send all files of the form /images/cloneimages/sda.gz_<number>
       in order to the clients, instructing them to decompress the
       incoming stream before writing it.

2. The file or partition you want to write (usually its a partition,
   but you can also write to a file) after the keyword "outfile". This
   file needs to be available on the clients only. The optional
   keyword "compressed" instructs the server to compress the data
   before sending it, so the client will store the data
   compressed. The optional keyword "split" after the filename,
   followed by a number and a multiplier, instructs the client to
   write the data in junks of no more than the given size. This is
   useful if the file system on your client does not allow files
   greater than a certain size. The files will be stored with the
   given namen and an appended "_<number>".
   Syntax: [compressed] outfile <output file or device> [split <n>(k|M|G|T)]
   EG: outfile /dev/sda10
       Will store the incoming data stream to the partition sda10.
   EG: compressed outfile /images/cloneimages/sda10_SuSE81.gz
       Will store the compressed data stream in the given file.
   EG: compressed outfile /images/cloneimages/sda_all.gz split 2G
       Will store the incoming compressed data stream in the directory
      /images/cloneimages/ in files sda_all.gz_0, sda_all.gz_1 and so on.

-. Instead of the first two entries ("infile" and "outfile") it is
   also possible to use the single line "dummy [<MB>]", where <MB> is
   the number of Megabytes to transfer in dummy mode. If <MB> is set
   to 0, then the clients will just terminate. This is useful when
   benchmarking with different options, so the clients can run all the
   time. To finally terminate them on all clients, just set dummy to 0.
   NOTE: It is probably better to use the newer "-t" switch on the
   server to specify the number of seconds the benchmarks should
   run. In that case you can leave the <MB> blank.
   Syntax: dummy [<MB>]
   EG: dummy 128

-. The optional keyword "segsize" is mostly used to benchmark
   switches. It specifies the maximal size of TCP segments during the
   network transfer. Usually you don't need to specify this option at
   all.
   Syntax: segsize <TCP_MAXSEG size>
   EG: segsize 128
   
-. With the optional keyword "add" it is possible to add more
   interfaces to use. The network traffic is then evenly distributed
   across the interfaces. This option is useful if you have for
   example two fast ethernet interfaces in your machines: One for
   administrative purposes and one for your main application on the
   cluster. This option is not so useful if you have multiple
   interfaces with different bandwidths. In this case just use the
   fastest available.
   You have to specify the number of additional interfaces and the
   suffixes of thouse interfaces. For example, in a cluster where the
   machines are named slave0..slave15 on their default interfaces and
   all the machines have a second interface named
   slave0-fast..slave15-fast, you should use the line specified below
   (EG).
   Syntax: add <nr>:<suffix>{:<suffix>}
   EG: add 1:-fast

-. The optional keyword "fanout" was mostly used during performance
   tests of different network topologies. You barely need it in
   practice. Fanout specifies the number of outlinks from the server
   and the following machines (except the leafes). A fanout of 1 is a
   linear list (the default behaviour of Dolly and usually the
   fastest), 2 is a binary tree, 3 is a ternary tree, etc. Dolly
   automatically connects all the specified clients with the desired
   topology.
   Syntax: fanout <fanout>
   EG: fannout 1

-. The optional keyword "hypennormal" instructs Dolly to treat the '-'
   character in hostnames as any other character. By default the
   hyphen is used to separate the base hostnames from the names of the
   different interface (e.g. "node12-giga"). You might use this
   paramater if your hostnames include a hypen (like e.g. "node-12").
   Syntax: hyphennormal
   EG: hyphennormal
   
3. After the keyword "server" follows the hostname of the server (or
   master). This is required for the last machine in the ring to be
   able to send the end-acknowledge back to the server.
   Syntax: server <master machine>
   EG: server cluster-master

4. This entry has the keyword "firstclient" followed by the hostname
   of the first client in the ring. You should use the hostname of the
   machine here, not the name of the interface where you want to
   connect.
   Syntax: firstclient <name of first machine>
   EG: firstclient cluster-1

5. This entry has the keyword "lastclient" followed by the hostname of
   the last client in the ring. You should use the hostname of the
   machine here, not the name of the interface where you want to
   connect.
   Syntax: lastclient <name of last machine>
   EG: lastclient cluster-9

6. This entry specifies how many clients are in the ring. The keyword
   is "clients" followed by the actual number of clients. This number
   does not include the master.
   Syntax: clients <number of clients>
   EG: clients 9

7. The following lines contain the interface-names of the client
   machines. The number of machines must match the above number of
   clients (see 6.). You should use the name of the interface on
   which the machines will receive the data.   
   Syntax: <name of client 1>
           <name of client 2>
           [...]
           <name of client n>
   EG: cluster-1-giga
       cluster-2-giga
       [...]
       cluster-9-giga

8. The last entry in the config file consists of the keyword
   "endconfig" and marks the end of the configuration file.
   Syntax: endconfig
   EG: endconfig

NOTE on NODES HOSTNAMES
=======================

On some machines (e.g. with very small maintenance installations),
gethostbyname() does not return the hostname (I don't know why). If
you have that problem, you should make sure that the environment
variables MYNODENAME or HOST are set accordingly. Dolly first tries to
get the environment variable MYNODENAME, then HOST, then it tries
gethostbyname(). This feature was introduced in dolly version 0.58.

HOW IT WORKS
============

Setting up or upgrading a cluster of PCs typically leads to the
problem that many machines need the exact same files. There are
different approaches to distribute the setup of one "master" machine
to all the other machines in the cluster. Our approach is not
sophisticated, but simple and fast (at least for fast switched
networks). We send the data around in a "virtual TCP ring" from the
server to all the clients which store tha received data on their local
disks.

One machine is the master and distributes the data to the others. The
master can be a machine of the cluster or some other machine (in the
current version of dolly it should be the same architecture
though). It stores the image of the partition or disk to be cloned or
has the partition on a local disk. The server should be on a fast
switched network (as all the other machines too) for fast cloning.

All other machines are clients. They receive the data from the ring,
store it to the local disk and send it to the next machine in the
ring. It is important to note that all of this happens at the same
time.

The cloning process is depicted in the following two figures. Usually
there are more than two clients, but you get the idea:

+========+  +==========+ +==========+
      | Master |  | Client 1 | | Client 2 |
      +====+===+  +===|======+ +====+=====+
            \         |            /
             \    +===+====+      /
              +===+ Switch |=====+
                  +========+

Cloning process, physical network

Cloning process, virtual network with TCP connections

We choose this method instead of a multicast scheme because it is
simple to implement, doesn't require the need to write a reliable
multicast protocol and works quite well with existing
technologies. One could also use the master as an NFS server and copy
the data to each client, but this puts quite a high load on the server
and makes it the bottleneck. Furthermore, it would not be possible to
directly clone partitions from one machine to some others without any
filesystem in the partition.

DIFFERENT CLONING POSSIBILITIES
===============================

There are different possibilities to clone your master machine:

- You already have an image of the partition which you want to clone
  on your master (raw or compressed). In this case you need Linux
  (some other UNIX might also work, but we haven't tested that yet) on
  your master and a Linux on each client.

- You want to clone a partition which is on a local disk of your
  master. In this case you need Linux (or probably another UNIX, we
  haven't tried that) on your master as well as on all the clients.
  You can use any Linux installation as long as it's not the one you
  want to clone (i.e. you can not clone the Linux which you are
  currently running in. See the warning below).

- You want to clone a whole disk including all the partitions. In this
  case you either need a second disk on all machines where your Linux
  used for the cloning process runs on (not the one you want to clone)
  or you need a small one-floppy-disk-Linux which you boot on all
  machines. In the later case you also need dolly on all machines
  (copy it to your floppy disk or mount it with NFS) and the
  config-file on the master.

WARNING: You can NOT clone an OS which is currently in use. That is why
         we have a small second Linux installation on all of our machines
         (or a small system that can be booted over the network by PXE),
         which we can boot to clone our regular Linux partition.

CHANGES 
=======

See CHANGELOG file

TODO
====

Add an AUTH method to validate client nodes from server.
            
EXAMPLE
=======

In this example we assume a cluster of 16 machines, named
node0..node15. We want to clone the partition sda5 from node0 to all
other nodes. The configuration file (let's name it dollytab.cfg)
should then look as follows:
```
infile /dev/sda5
outfile /dev/sda5
server node0
firstclient node1
lastclient node15
clients 15
node1
node2
node3
node4
node5
node6
node7
node8
node9
node10
node11
node12
node13
node14
node15
endconfig
```

Next, we start Dolly on all the clients. No options are required for
the clients (but you might want to add the "-v" option for verbose
progress reports). Finally, Dolly is started on the server as follows:
  dolly -v -s -f dollytab.cfg
That's all.

Bibliography
============

Felix Rauch, Christian Kurmann, Thomas M. Stricker: <em>Optimizing the
distribution of large data sets in theory and practice</em>. Concurrency
and Computation: Practice and Experience, volume 14, issue 3, pages
165-181, april 2002. (c) John Wiley & Sons, Ltd.

Maintained by Felix Rauch.
http://www.cs.inf.ethz.ch/~rauch/
Felix Rauch <rauch@inf.ethz.ch>

AUTHORS / CONTRIBUTORS
=======================
Felix Rauch <rauch@inf.ethz.ch>
Antoine Ginies <aginies@suse.com>
Christian Goll <cgoll@suse.com>
07070100000007000081A4000000000000000000000001623B5E140000865C000000000000000000000000000000000000001500000000dolly-0.64.2/dolly.c#include "dolly.h"
#include "transmit.h"
#include "files.h"
#include "movebytes.h"

/* Clients need the ports before they can listen, so we use defaults. */
const unsigned int dataport = 9998;
const unsigned int ctrlport = 9997;
const unsigned int systemdport = 9996;
const char* host_delim = ",";

FILE *stdtty;           /* file pointer to the standard terminal tty */

/* File descriptors for file I/O */
int input = -1, output = -1;

/* Numbers for splitted input/output files */
unsigned int input_nr = 0, output_nr = 0;

/* size of buffers for TCP sockets (approx. 100KB, multiple of 4 KB) */
unsigned int buffer_size = 98304;

/* Normal sockets for data transfer */
int datain[MAXFANOUT], dataout[MAXFANOUT];
int datasock = -1;

/* Special sockets for control information */
int ctrlin = -1, ctrlout[MAXFANOUT];
int ctrlsock = -1;

unsigned long long maxbytes = 0; /* max bytes to transfer */
unsigned long long maxcbytes = 0;/*     --  "  --  in compressed mode */
int dosync = 1;                  /* sync() after transfer */
int timeout = 0;                 /* Timeout for startup */
int verbignoresignals = 1;       /* warn on ignore signal errors */

int max_retries = 10;
char dollytab[256];

int flag_log = 0;
char logfile[256] = "";

/* Pipe descriptor in case data must be uncompressed before write */
int pd[2];
/* Pipe descriptor in case input data must be compressed */
int id[2];

/* PIDs of child processes */
int in_child_pid = 0, out_child_pid = 0;

/* Handles timeouts by terminating the program. */
static void alarm_handler() {
  fprintf(stderr, "Timeout reached (was set to %d seconds).\nTerminating.\n",
	  timeout);
  exit(1);
}

/* This functions prints all the parameters before starting.
   It's mostly used for debugging. */
static void print_params(struct dollytab* mydollytab) {
  unsigned int i;
  fprintf(stderr, "Parameter file: \n");
  if(mydollytab->compressed_in) {
    fprintf(stderr, "compressed ");
  }
  fprintf(stderr, "infile = '%s'", mydollytab->infile);
  if(mydollytab->input_split != 0) {
    fprintf(stderr, ", splitted in parts.\n");
  } else {
    fprintf(stderr, "\n");
  }
  if(mydollytab->compressed_out) {
    fprintf(stderr, "compressed ");
  }
  fprintf(stderr, "outfile = '%s'", mydollytab->outfile);
  if(mydollytab->output_split != 0) {
    fprintf(stderr, ", splitted in %llu byte parts.\n", mydollytab->output_split);
  } else {
    fprintf(stderr, "\n");
  }
  fprintf(stderr, "using data port %u\n", dataport);
  fprintf(stderr, "using ctrl port %u\n", ctrlport);
  if(mydollytab->flag_d) { fprintf(stderr, "using systemd port %u\n", systemdport); }
  fprintf(stderr, "myhostname = '%s'\n", mydollytab->myhostname);
  if(mydollytab->segsize > 0) {
    fprintf(stderr, "TCP segment size = %u\n", mydollytab->segsize);
  }
  if(mydollytab->add_nr > 0) {
    fprintf(stderr, "add_nr (extra network interfaces) = %u\n", mydollytab->add_nr);
    if(mydollytab->add_mode == 1) {
      fprintf(stderr, "Postfixes: ");
    } else if(mydollytab->add_mode == 2) {
      fprintf(stderr, "Midfixes: ");
    } else {
      fprintf(stderr, "Undefined value for add_mode: %d\n", mydollytab->add_mode);
      exit(1);
    }
    for(i = 0; i < mydollytab->add_nr; i++) {
      fprintf(stderr, "%s", mydollytab->add_name[i]);
      if(i < mydollytab->add_nr - 1) fprintf(stderr, ":");
    }
    fprintf(stderr, "\n");
  }
  if (mydollytab->add_primary == 1) {
    fprintf(stderr, "add to primary hostname = ");
    fprintf(stderr, "%s", mydollytab->add_name[0]);
    fprintf(stderr, "\n");
  }
  fprintf(stderr, "fanout = %u\n", mydollytab->fanout);
  fprintf(stderr, "nr_childs = %u\n", mydollytab->nr_childs);
  fprintf(stderr, "server = '%s'\n", mydollytab->servername);
  fprintf(stderr, "I'm %sthe server.\n", (mydollytab->meserver ? "" : "not "));
  fprintf(stderr, "I'm %sthe last host.\n", (mydollytab->melast ? "" : "not "));
  fprintf(stderr, "There are %u hosts in the ring (excluding server):\n",
	  mydollytab->hostnr);
  for(i = 0; i < mydollytab->hostnr; i++) {
    fprintf(stderr, "\t'%s'\n", mydollytab->hostring[i]);
  }
  fprintf(stderr, "Next hosts in ring:\n");
  if(mydollytab->nr_childs == 0) {
    fprintf(stderr, "\tnone.\n");
  } else {
    for(i = 0; i < mydollytab->nr_childs; i++) {
      fprintf(stderr, "\t%s (%d)\n",
	      mydollytab->hostring[mydollytab->nexthosts[i]], mydollytab->nexthosts[i]);
    }
  }
  fprintf(stderr, "All parameters read successfully.\n");
  if(mydollytab->compressed_in && !mydollytab->meserver) {
    fprintf(stderr,
	    "Will use gzip to uncompress data before writing.\n");
  } else if(mydollytab->compressed_in && mydollytab->meserver) {
    fprintf(stderr,
	    "Clients will have to use gzip to uncompress data before writing.\n");
  } else {
    fprintf(stderr, "No compression used.\n");
  }
  fprintf(stderr, "Using transfer size %d bytes.\n",(int) mydollytab->t_b_size);
}

static void open_insocks(struct dollytab * mydollytab) {
  struct sockaddr_in addr;
  int optval;
  int recv_size, sizeofint = sizeof(int);
  
  /* All machines have an incoming data link */
  datasock = socket(PF_INET, SOCK_STREAM, 0);
  if(datasock == -1) {
    perror("Opening input data socket");
    exit(1);
  }
  optval = 1;
  if(setsockopt(datasock, SOL_SOCKET, SO_REUSEADDR,
		&optval, sizeof(int)) == -1) {
    perror("setsockopt on datasock");
    exit(1);
  }
  
  /* Attempt to set TCP_NODELAY */
  optval = 1;
  if(setsockopt(datasock, IPPROTO_TCP, TCP_NODELAY,
        	&optval, sizeof(int)) < 0) {
    (void)fprintf(stderr, "setsockopt: TCP_NODELAY failed! errno = %d\n",
		  errno);
    // exit(1);
  }

if(mydollytab->segsize > 0) {
    /* Attempt to set TCP_MAXSEG */
    fprintf(stderr, "Set TCP_MAXSEG to %u bytes\n", mydollytab->segsize);
    if(setsockopt(datasock, IPPROTO_TCP, TCP_MAXSEG,
		  &mydollytab->segsize, sizeof(int)) < 0) {
      (void) fprintf(stderr,"setsockopt: TCP_MAXSEG failed! errno=%d\n", errno);
      // exit(1);
    }
  }
  
  /* Attempt to set input BUFFER sizes */
  if(mydollytab->flag_v) { fprintf(stderr, "Buffer size: %u\n", SCKBUFSIZE); }
  if(setsockopt(datasock, SOL_SOCKET, SO_RCVBUF, &SCKBUFSIZE,sizeof(SCKBUFSIZE)) < 0) {
    (void) fprintf(stderr, "setsockopt: SO_RCVBUF failed! errno = %d\n",
		   errno);
    exit(556);
  }
  getsockopt(datasock, SOL_SOCKET, SO_RCVBUF,
	     (char *) &recv_size, (void *) &sizeofint);
  if(mydollytab->flag_v) {
    (void)fprintf(stderr, "Receive buffer is %d bytes\n", recv_size);
  }
  
  addr.sin_family = AF_INET;
  addr.sin_port = htons(dataport);
  addr.sin_addr.s_addr = htonl(INADDR_ANY);
  if (bind(datasock, (struct sockaddr *) &addr, sizeof(addr)) == -1) {
    perror("binding input data socket");
    exit(1);
  }
  if(listen(datasock, 1) == -1) {
    perror("listen input data socket");
    exit(1);
  }
  
  /* All machines have an incoming control link */
  ctrlsock = socket(PF_INET, SOCK_STREAM, 0);
  if(ctrlsock == -1) {
    perror("Opening input control socket");
    exit(1);
  }
  optval = 1;
  if(setsockopt(ctrlsock, SOL_SOCKET, SO_REUSEADDR,
		&optval, sizeof(int)) == -1) {
    perror("setsockopt on ctrlsock");
    exit(1);
  }
  addr.sin_family = AF_INET;
  addr.sin_port = htons(ctrlport);
  addr.sin_addr.s_addr = htonl(INADDR_ANY);
  if (bind(ctrlsock, (struct sockaddr *) &addr, sizeof(addr)) == -1) {
    perror("binding input control socket");
    exit(1);
  }
  if(listen(ctrlsock, 1) == -1) {
    perror("listen input control socket");
    exit(1);
  }
}

static void open_insystemdsocks(struct dollytab * mydollytab) {
  int clientSocket;
  unsigned int i;
  int Retval=-1;
  struct sockaddr_in serverAddr;
  socklen_t addr_size;
  serverAddr.sin_family = AF_INET;
  serverAddr.sin_port = htons(systemdport);
  if(mydollytab->flag_v) {
    fprintf(stderr, "Start dolly client using systemd socket on %u hosts, port %i:\n", mydollytab->hostnr, systemdport);
  }
  for(i = 0; i < mydollytab->hostnr; i++) {
      clientSocket = socket(PF_INET, SOCK_STREAM, 0);
      if(mydollytab->flag_v) {
        fprintf(stderr, "\t'%s'\n", mydollytab->hostring[i]);
      }
      serverAddr.sin_addr.s_addr = inet_addr(mydollytab->hostring[i]);
      /* Connect to the systemd socket of all client nodes to start the dolly service */
      addr_size = sizeof serverAddr;
      Retval = connect(clientSocket, (struct sockaddr *) &serverAddr, addr_size);
      if (Retval < 0) {
        fprintf(stderr, "Connection failed to %s ! dolly service wont be started !\n (Please do a: systemctl start dolly.socket)\n", mydollytab->hostring[i]);
      }
      close(clientSocket);
  }
}

static void open_outsocks(struct dollytab * mydollytab) {
  struct hostent *hent;
  struct sockaddr_in addrdata, addrctrl;
  int ret;
  int dataok = 0, ctrlok = 0, retry_count = 0;
  unsigned int i;
  int optval;
  unsigned int max = 0;
  char hn[256+32];
  int send_size, sizeofint = sizeof(int);

if(mydollytab->nr_childs > 1) {
    max = mydollytab->nr_childs;
  } else if(mydollytab->add_nr > 0) {
    max = mydollytab->add_nr + 1;
  } else {
    max = 1;
  }
  for(i = 0; i < max; i++) {  /* For all childs we have */
    if(mydollytab->nr_childs > 1) {
      strcpy(hn, mydollytab->hostring[mydollytab->nexthosts[i]]);
    } else if(mydollytab->add_nr > 0) {
      if(mydollytab->add_mode == 1) {
	strcpy(hn, mydollytab->hostring[mydollytab->nexthosts[0]]);
	if(i > 0) {
	  strcat(hn, mydollytab->add_name[i - 1]);
	}
      } else if(mydollytab->add_mode == 2) {
	if(i == 0) {
	  strcpy(hn, mydollytab->hostring[mydollytab->nexthosts[0]]);
	} else {
	  int j = 0;
	  while(!isdigit(mydollytab->hostring[mydollytab->nexthosts[0]][j])) {
	    hn[j] = mydollytab->hostring[mydollytab->nexthosts[0]][j];
	    j++;
	  }
	  hn[j] = 0;
	  strcat(hn, mydollytab->add_name[i - 1]);
	  strcat(hn, &mydollytab->hostring[mydollytab->nexthosts[0]][j]);
	}
      } else {
	fprintf(stderr, "Undefined add_mode %d!\n", mydollytab->add_mode);
	exit(1);
      }
    } else if (mydollytab->add_primary) {
      assert(i < 1);
      
      if(mydollytab->add_mode == 1) {
        strcpy(hn, mydollytab->hostring[mydollytab->nexthosts[0]]);
        strcat(hn, mydollytab->add_name[0]);
      } else if(mydollytab->add_mode == 2) {
        int j = 0;
        while(!isdigit(mydollytab->hostring[mydollytab->nexthosts[0]][j])) {
          hn[j] = mydollytab->hostring[mydollytab->nexthosts[0]][j];
          j++;
        }
        hn[j] = 0;
        strcat(hn, mydollytab->add_name[0]);
        strcat(hn, &mydollytab->hostring[mydollytab->nexthosts[0]][j]);
      } else {
        fprintf(stderr, "Undefined add_mode %d!\n", mydollytab->add_mode);
        exit(1);
      }
    } else {
      assert(i < 1);
      strcpy(hn, mydollytab->hostring[mydollytab->nexthosts[i]]);
    }
    
    hent = gethostbyname(hn);
    //(void)fprintf(stderr,"DEBUG gethostbyname on >%s<\n",hn);
    if(hent == NULL) {
      char str[strlen(hn)+34];
      sprintf(str, "gethostbyname for host '%s' error %d",
	      hn, h_errno);
      herror(str);
      exit(1);
    }
    if(hent->h_addrtype != AF_INET) {
      fprintf(stderr, "Expected h_addrtype of AF_INET, got %d\n",
	      hent->h_addrtype);
    }

if(mydollytab->flag_v) {
      fprintf(stderr, "Connecting to host %s...\n", hn);
      fflush(stderr);
    }
    
    /* Wait until we connected to everything... */
    dataok  = ctrlok = 0;
    do {
      dataout[i] = socket(PF_INET, SOCK_STREAM, 0);
      if(dataout[i] == -1) {
        perror("Opening output data socket");
        exit(1);
      }

if((mydollytab->nr_childs > 1) || (i == 0)) {
        ctrlout[i] = socket(PF_INET, SOCK_STREAM, 0);
        if(ctrlout[i] == -1) {
          perror("Opening output control socket");
          exit(1);
        }
      }
      
      /* Attempt to set TCP_NODELAY */
      optval = 1;
      if(setsockopt(dataout[i], IPPROTO_TCP, TCP_NODELAY,
        	    &optval, sizeof(int)) < 0) {
        (void) fprintf(stderr,"setsockopt: TCP_NODELAY failed! errno = %d\n",
		       errno);
        exit(1);
      }

if(mydollytab->segsize > 0) {
	/* Attempt to set TCP_MAXSEG */
        fprintf(stderr, "Set TCP_MAXSEG to %u bytes\n", mydollytab->segsize);
        if(setsockopt(dataout[i], IPPROTO_TCP, TCP_MAXSEG,
		      &mydollytab->segsize, sizeof(int)) < 0) {
	  (void) fprintf(stderr, "setsockopt: TCP_MAXSEG failed! errno = %d\n", 
			 errno);
      exit(1);
	}
      }
      if(setsockopt(dataout[i], SOL_SOCKET, SO_SNDBUF,&SCKBUFSIZE,sizeof(SCKBUFSIZE)) < 0) {
          (void) fprintf(stderr, "setsockopt: SO_SNDBUF failed! errno = %d\n", errno);
          exit(556);
      }
      getsockopt(dataout[i], SOL_SOCKET, SO_RCVBUF,
           (char *) &send_size, (void *) &sizeofint);
      //fprintf(stderr, "Send buffer %u is %d bytes\n", i, send_size);

///* Setup data port */
      addrdata.sin_family = hent->h_addrtype;
      addrdata.sin_port = htons(dataport);
      bcopy(hent->h_addr, &addrdata.sin_addr, hent->h_length);

if((mydollytab->nr_childs > 1) || (i == 0)) {
        /* Setup control port */
        addrctrl.sin_family = hent->h_addrtype;
        addrctrl.sin_port = htons(ctrlport);
        bcopy(hent->h_addr, &addrctrl.sin_addr, hent->h_length);
      }
      
      if(!dataok) {
        retry_count = 0;
        do {
          ret = connect(dataout[i],
                  (struct sockaddr *)&addrdata, sizeof(addrdata));
          retry_count++;
        } while(retry_count < max_retries && ret == -1 && errno != ECONNREFUSED);
        if((ret == -1) && (errno == ECONNREFUSED)) {
          close(dataout[i]);
        } else if(ret == -1) {
          perror("connect");
          exit(1);
        } else {
          dataok = 1;
#ifdef DOLLY_NONBLOCK
          ret = fcntl(dataout[i], F_SETFL, O_NONBLOCK);
          if(ret == -1) {
            perror("fcntl");
          }
#endif /* DOLLY_NONBLOCK */
          if(mydollytab->add_nr > 0) {
            ret = write(dataout[i], &i, sizeof(i));
            if(ret == -1) {
              perror("Write fd-nr in open_outsocks()");
              exit(1);
            }
          }
          if(mydollytab->flag_v) {
            fprintf(stderr, "data ");
            fflush(stderr);
          }
        }
      }
      if(!ctrlok) {
	if((mydollytab->nr_childs > 1) || (i == 0)) {
    retry_count = 0;
    do {
      ret = connect(ctrlout[i],
        (struct sockaddr *)&addrctrl, sizeof(addrctrl));
      retry_count++;
    } while(retry_count < max_retries && ret == -1 && errno != ECONNREFUSED);
	  if((ret == -1) && (errno == ECONNREFUSED)) {
	    close(ctrlout[i]);
	  } else if(ret == -1) {
	    perror("connect");
	    exit(1);
	  } else {
	    ctrlok = 1;
	    if(mydollytab->flag_v) {
	      fprintf(stderr, "control ");
	      fflush(stderr);
	    }
	  }
	} else {
	  ctrlok = 1;
	}
      }
      if(dataok + ctrlok != 2) {
        sleep(1);
      }
    } while(dataok + ctrlok != 2);
    if(mydollytab->flag_v) {
      fprintf(stderr, "\b.\n");
    }
  }
}

static void buildring(struct dollytab * mydollytab) {
  socklen_t size;
  int ret = 0;
  unsigned int i = 0,j = 0,nr = 0;
  unsigned int ready_mach = 0;  /* Number of ready machines */
  char msg[1024];
  char info_buf[1024];

if(!mydollytab->meserver) {
    /* Open the input sockets and wait for connections... */
    open_insocks(mydollytab);
    if(mydollytab->flag_v) {
      fprintf(stderr, "Accepting...");
      fflush(stderr);
    }
    
    /* All except the first accept a connection now */
    ctrlin = accept(ctrlsock, NULL, &size);
    if(ctrlin == -1) {
      perror("accept input control socket");
      exit(1);
    }
    if(mydollytab->flag_v) {
      fprintf(stderr, "control...\n");
      fflush(stderr);
    }
    
    /* Clients should now read everything from the ctrl-socket. */
    getparams(ctrlin,mydollytab);
    if(mydollytab->flag_v) {
      print_params(mydollytab);
    }

datain[0] = accept(datasock, NULL, &size);
    if(datain[0] == -1) {
      perror("accept input data socket");
      exit(1);
    }
    if(mydollytab->add_nr > 0) {
      ret = read(datain[0], &nr, sizeof(nr));
      if(ret == -1) {
        perror("First read for nr in buildring");
        exit(1);
      }
      assert(nr == 0);
      for(i = 0; i < mydollytab->add_nr; i++) {
	datain[1 + i] = accept(datasock, NULL, &size);
	if(datain[1 + i] == -1) {
	  perror("accept extra input data socket");
	  exit(1);
	}
	ret = read(datain[1 + i], &nr, sizeof(nr));
	if(ret == -1) {
	  perror("Read for nr in buildring");
	  exit(1);
	}
	assert(nr == (1 + i));
      }
    }
    if(mydollytab->flag_v) {
      fprintf(stderr, "Connected data...done.\n");
    }
    /* The input sockets are now connected. */

/* Give information back to server */
    sprintf(msg, "Host got parameters '%s'.\n", mydollytab->myhostname);
    ret = movebytes(ctrlin, WRITE, msg, strlen(msg),mydollytab);
    if((unsigned int) ret != strlen(msg)) {
      fprintf(stderr,
	      "Couldn't write got-parameters-message back to server "
	      "(sent %d instead of %zu bytes).\n",
	      ret, strlen(msg));
    }
  }

if(mydollytab->meserver) {
    open_infile(1,mydollytab);
  } else {
    open_outfile(1,mydollytab);
  }

/* All the machines except the leaf(s) need to open output sockets */
  if(!mydollytab->melast) {
    open_outsocks(mydollytab);
  }
  
  /* Finally, the first machine also accepts a connection */
  if(mydollytab->meserver) {
    char buf[mydollytab->t_b_size];
    ssize_t readsize;
    int fd, ret, maxsetnr = -1;
    fd_set real_set, cur_set;
    
    /* Send out dollytab */
    fd = open(dollytab, O_RDONLY);
    if(fd == -1) {
      perror("open dollytab");
      exit(1);
    }
    readsize = read(fd, buf, mydollytab->t_b_size);
    if(readsize == -1) {
      perror("read dollytab");
      exit(1);
    } else if(readsize == mydollytab->t_b_size) {
      fprintf(stderr, "Dollytab possibly too long, adjust program...\n");
      exit(1);
    } else if(readsize == 1448) {
      buf[1448] = ' ';
      readsize += 1;
    }
    for(i = 0; i < mydollytab->nr_childs; i++) {
      movebytes(ctrlout[i], WRITE, buf, readsize,mydollytab);
    }
    close(fd);

/* Wait for backflow-information or the data socket connection */
    fprintf(stderr, "Waiting for ring to build...\n");
    FD_ZERO(&real_set);
    maxsetnr = -1;
    for(i = 0; i < mydollytab->nr_childs; i++) {
      FD_SET(ctrlout[i], &real_set);
      if(ctrlout[i] > maxsetnr) {
        maxsetnr = ctrlout[i];
      }
    }
    maxsetnr++;
    do {
      cur_set = real_set;
      ret = select(maxsetnr, &cur_set, NULL, NULL, NULL);
      if(ret == -1) {
        perror("select in buildring()\n");
        exit(1);
      }
      for(j = 0; j < mydollytab->nr_childs; j++) {
        if(FD_ISSET(ctrlout[j], &cur_set)) {
          ret = read(ctrlout[j], info_buf, 1024);
          if(ret == -1) {
            perror("read backflow in buildring");
            exit(1);
          }
          if(ret == 0) {
            fprintf(stderr, "read returned 0 from backflow in buildring.\n");
            exit(1);
          } else {
            char *p;
            
            p = info_buf;
            info_buf[ret] = 0;	
            if(mydollytab->flag_v) {
              fprintf(stderr, "%s", info_buf);
            }
            while((p = strstr(p, "ready")) != NULL) {
              ready_mach++;
              p++;
            }
            if(mydollytab->flag_v) {
              fprintf(stderr,
                "Machines left to wait for: %u\n", mydollytab->hostnr - ready_mach);
            }
          }
        }
      } /* For all childs */
    } while(ready_mach < mydollytab->hostnr);
  }

if(mydollytab->flag_v) {
    fprintf(stderr, "Accepted.\n");
  }
  
  if(!mydollytab->meserver) {
    /* Send it further */
    if(!mydollytab->melast) {
      for(i = 0; i < mydollytab->nr_childs; i++) {
        movebytes(ctrlout[i], WRITE, mydollytab->dollybuf, mydollytab->dollybufsize,mydollytab);
      }
    }
    
    /* Give information back to server */
    sprintf(msg, "Host ready '%s'.\n", mydollytab->myhostname);
    ret = movebytes(ctrlin, WRITE, msg, strlen(msg),mydollytab);
    if((unsigned int) ret != strlen(msg)) {
      fprintf(stderr,
	      "Couldn't write ready-message back to server "
	      "(sent %d instead of %zu bytes).\n",
	      ret, strlen(msg));
    }
  }
}

static void usage(void) {
  fprintf(stderr, "\n");
  fprintf(stderr, "Dolly version: %s\n", version_string);
  fprintf(stderr, "\n");
  fprintf(stderr, "Dolly is a program to clone disks / partitions / data. It takes same amount of time to copy data to one node or to X nodes.\n");
  fprintf(stderr, "\n");
  fprintf(stderr,
	  "Usage: dolly [-hVvSsnYR] [-c <size>] [-b <size>] [-u <size>] [-f configfile] "
	  "[-o logfile] [-t time] -I [inputfile] -O [outpufile] -H [node1,node2,node3...]\n");
  fprintf(stderr, "\n");
  fprintf(stderr, "\tWithout any -s or -S option dolly will be a client\n");
  fprintf(stderr, "\t-s: this is the server, check hostname\n");
  fprintf(stderr, "\t-S <hostname>: use hostname as server\n");
  fprintf(stderr, "\t-R: resolve the hostnames to ipv4 addresses\n");
  fprintf(stderr, "\t-6: resolve the hostnames to ipv6 addresses\n");
  fprintf(stderr, "\t-V: Print version number and exit\n");
  fprintf(stderr, "\t-h: Print this help and exit\n");
  fprintf(stderr, "\t-d: connect to systemd socket on clients nodes to start the dolly service (port 9996)\n");
  fprintf(stderr, "\t-v: Verbose mode\n");
  fprintf(stderr, "\t-q: Suppresss \"ignored signal\" messages\n");
  fprintf(stderr, "\t-f <configfile>, where <configfile> is the "
	  "configuration file with all\n\t\tthe required information for "
	  "this run. Required on server only.\n");
  fprintf(stderr, "\t-o <logfile>: Write some statistical information  "
	  "in <logfile>\n");
  fprintf(stderr, "\t-a <timeout>: Lets dolly terminate if it could not transfer\n\t\tany data after <timeout> seconds.\n");
  fprintf(stderr, "\t-n: Do not sync before exit. Dolly exits sooner.\n");
  fprintf(stderr, "\t    Data may not make it to disk if power fails soon after dolly exits.\n\n");
  fprintf(stderr, "\tFollowing options can be used instead of a dollytab and\n");
  fprintf(stderr, "\timply the -S or -s option which must me preceded:\n");
  fprintf(stderr, "\t-H: comma seperated list of the hosts to send to\n");
  fprintf(stderr, "\t-I: input file\n");
  fprintf(stderr, "\t-O: output file (just - for output to stdout)\n\n");
  fprintf(stderr, "\tCustomize network transfer:\n");
  fprintf(stderr, "\t-b <size>, where size is the size of block to transfer (default 4096)\n");
  fprintf(stderr, "\t-u <size>, size of the buffer (multiple of 4K)\n");
  fprintf(stderr, "\t-c <size>, where size is uncompressed size of "
	  "compressed inputfile\n\t\t(for statistics only)\n");
  fprintf(stderr, "\n");
  fprintf(stderr, "Example of usage:\n");
  fprintf(stderr, "On client:\n");
  fprintf(stderr, "\tdolly -v\n");
  fprintf(stderr, "\n");
  fprintf(stderr, "On server:\n");
  fprintf(stderr, "\tdolly -s -H sle15sp32,sle15sp33,sle15sp34 -I files.tgz -O /tmp/files.tgz\n");
  exit(1);
}

int main(int argc, char *argv[]) {
  int c;
  unsigned int i;
  int flag_f = 0, flag_cargs = 0, generated_dolly = 0, me = -2;
  FILE *df;
  char *mnname = NULL, *tmp_str, *host_str, *a_str, *sp, *ip_addr;
  size_t nr_hosts = 0;
  int fd;
  struct dollytab* mydollytab = (struct dollytab*)malloc(sizeof(struct dollytab));
  struct sockaddr_in sock_address;
  init_dollytab(mydollytab);

/* Parse arguments */
  while(1) {
    c = getopt(argc, argv, "a:b:c:f:r:u:vqo:S:shdnR46:V:I:O:Y:H:");
    if(c == -1) break;
    
    switch(c) {
    case 'f':
      /* Where to find the config-file. */
      if(strlen(optarg) > 255) {
        fprintf(stderr, "Name of config-file too long.\n");
        exit(1);
      }
      strcpy(dollytab, optarg);
      flag_f = 1;
      break;
    case 'R':
      if(mydollytab->resolve != 6 && mydollytab->resolve != 4) {
        mydollytab->resolve = 1;
      }
      break;
    case '6':
      mydollytab->resolve = 6;
      break;
    case '4':
      mydollytab->resolve = 4;
      break;
    case 'v':
      /* Verbose */
      mydollytab->flag_v = 1;
      break;
    case 'd':
      /* systemd socket activation */
      mydollytab->flag_d = 1;
      break;
    case 'o':
      /* log filename */
      if(strlen(optarg) > 255) {
        fprintf(stderr, "Name of log-file too long.\n");
        exit(1);
      }
      strcpy(logfile, optarg);
      flag_log = 1;
      break;

/* This is now in the config file. */
    case 'c':
      mydollytab->compressed_in = 1;
      maxcbytes = atoi(optarg);
      break;
    case 'b':
      mydollytab->t_b_size = atoi(optarg);
      break;
    case 'u':
      buffer_size = atoi(optarg);
      break;
    case 'n':
      dosync = 0;
      break;
    case 's':
      /* This machine is the server. */
      mydollytab->meserver = 1;
      break;
    case 'S':
      /* This machine is the server - don't check hostname. */
      mydollytab->meserver = 1;
      if(strcmp(optarg,"-") < 0) {
        fprintf(stderr,"'%s' is not a valid servername\n",optarg);
        exit(1);
      }
      memcpy(mydollytab->servername,optarg,strlen(optarg));
      break;
    case 'a':
      i = atoi(optarg);
      if((int)i <= 0) {
        fprintf(stderr, "Timeout of %u doesn't make sense.\n", i);
        exit(1);
      }
      timeout = i;
      if(mydollytab->flag_v) {
        fprintf(stderr, "Will set timeout to %d seconds.\n", timeout);
      }
      signal(SIGALRM, alarm_handler);
      break;
    case  'r':
      max_retries = atoi(optarg);
      break;
    case 'h':
      /* Give a little help */
      usage();
      break;
    case 'q':
      verbignoresignals = 0;
      break;
    case 'V':
      fprintf(stderr, "Dolly version %s\n", version_string);
      exit(0);
      break;
    case 'I':
      if(strlen(optarg) > 255) {
        fprintf(stderr, "Name of input-file too long.\n");
        exit(1);
      }
      if (mydollytab->meserver == 0) {
        fprintf(stderr,"the -S/-s must preceed the -I option\n");
        exit(1);
      }
      memcpy(mydollytab->infile,optarg,strlen(optarg));
      flag_cargs = 1;
      break;

case 'O':
      if(strlen(optarg) > 255) {
        fprintf(stderr, "Name of output-file too long.\n");
        exit(1);
      }
      if (mydollytab->meserver == 0) {
        fprintf(stderr,"the -S/-s must preceed the -O option\n");
        exit(1);
      }
      memcpy(mydollytab->outfile,optarg,strlen(optarg));
      flag_cargs = 1;
      break;

case 'Y':
      mydollytab->hyphennormal = 1;
      break;

case 'H':
      if (mydollytab->meserver == 0) {
        fprintf(stderr,"the -S/-s must preceed the -H option\n");
        exit(1);
      }
      /* copying string as it is modified*/
      a_str = strdup(optarg);
      tmp_str = a_str;
      while(*tmp_str) {
        if(*host_delim == *tmp_str) {
          nr_hosts++;
        }
        tmp_str++;
      }
      nr_hosts++;
      mydollytab->hostnr = nr_hosts;
      mydollytab->hostring = (char**) malloc(nr_hosts * sizeof(char *));
      /* now find the first host */
      host_str = strtok(a_str,host_delim);
      nr_hosts = 0;
      /* check if have to resolve the hostnames */
      while(host_str != NULL) {
        if(mydollytab->resolve == 0 && 
           inet_pton(AF_INET,host_str,&(sock_address.sin_addr)) == 1 &&
           inet_pton(AF_INET6,host_str,&(sock_address.sin_addr)) == 1) {
          mydollytab->hostring[nr_hosts] = (char *)malloc(strlen(host_str)+1);
          memcpy(mydollytab->hostring[nr_hosts], host_str,strlen(host_str));
        } else { 
          /* get memory for ip address */
          ip_addr = (char*)malloc(sizeof(char)*256);
          if(resolve_host(host_str,ip_addr,mydollytab->resolve)) {
            fprintf(stderr,"Could not resolve the host '%s'\n",host_str);
            exit(1);
          }
          mydollytab->hostring[nr_hosts] = (char *)malloc(strlen(ip_addr)+1);
          if(!mydollytab->hostring[nr_hosts]) {
            fprintf(stderr,"Could not get memory for hostring!\n");
            exit(1);
          }
          strcpy(mydollytab->hostring[nr_hosts],ip_addr);
          free(ip_addr);
        }
        host_str = strtok(NULL,host_delim);
        if(strcmp(mydollytab->hostring[nr_hosts], mydollytab->myhostname) == 0) {
          me = nr_hosts;
        } else if(!mydollytab->hyphennormal) {
          /* Check if the hostname is correct, but a different interface is used */
          if((sp = strchr(mydollytab->hostring[nr_hosts], '-')) != NULL) {
            if(strncmp(mydollytab->hostring[nr_hosts], mydollytab->myhostname, sp - mydollytab->hostring[nr_hosts]) == 0) {
              me = nr_hosts;
            }
          }
        }
        nr_hosts++;
      }
      /* Build up topology */
      mydollytab->nr_childs = 0;
      for(i = 0; i < mydollytab->fanout; i++) {
        if(mydollytab->meserver) {
          if(i + 1 <= mydollytab->hostnr) {
            mydollytab->nexthosts[i] = i;
            mydollytab->nr_childs++;
          }
        } else {
          if((me + 1) * mydollytab->fanout + 1 + i <= mydollytab->hostnr) {
            mydollytab->nexthosts[i] = (me + 1) * mydollytab->fanout + i;
            mydollytab->nr_childs++;
          }
        }
      }
      /* In a tree, we might have multiple last machines. */
      if(mydollytab->nr_childs == 0) {
        mydollytab->melast = 1;
      }

free(a_str);
      /* make sure that we are the server */
      mydollytab->meserver = 1;
      flag_cargs = 1;
      break;
      
    default:
      fprintf(stderr, "Unknown option '%c'.\n", c);
      exit(1);
    }
 // always do hostname resolution
 //   if(flag_cargs) {
      /* only use HOST when servername or ip is not explictly set */
      if(strcmp(mydollytab->servername,"") == 0) {
        mnname = getenv("HOST");
        if(mydollytab->resolve != 0) {
          ip_addr = (char*)malloc(sizeof(char)*256);
          if(resolve_host(mnname,ip_addr,mydollytab->resolve)) {
            fprintf(stderr,"Could resolve the server address '%s'\n",mydollytab->servername);
            exit(1);
          }
          memcpy(mydollytab->myhostname,ip_addr,strlen(ip_addr));
          memcpy(mydollytab->servername,ip_addr,strlen(ip_addr));
          free(ip_addr);
        } else {
          memcpy(mydollytab->myhostname,mnname,strlen(mnname));
          memcpy(mydollytab->servername,mnname,strlen(mnname));
        }
      } else {
        /* check if we allready have a valid ip address */
        if(inet_pton(AF_INET,mydollytab->servername,&(sock_address.sin_addr)) == 0 &&
           inet_pton(AF_INET6,mydollytab->servername,&(sock_address.sin_addr)) == 0 &&
           mydollytab->resolve != 0) {
          ip_addr = (char*)malloc(sizeof(char)*256);
          if(resolve_host(mydollytab->servername,ip_addr,mydollytab->resolve)) {
            fprintf(stderr,"Could resolve the server address '%s'\n",mydollytab->servername);
            exit(1);
          }
          memcpy(mydollytab->servername,ip_addr,strlen(ip_addr));
          memcpy(mydollytab->myhostname,ip_addr,strlen(ip_addr));
          free(ip_addr);
        } else {
          memcpy(mydollytab->myhostname,mydollytab->servername,strlen(mydollytab->servername));
        }
      }

//    }
    if(flag_f && !flag_cargs) {
      /* Open the config-file */
      df = fopen(optarg, "r");
      if(df == NULL) {
        char errstr[256];
        sprintf(errstr, "fopen dollytab '%s'", optarg);
        perror(errstr);
        exit(1);
      }
      parse_dollytab(df,mydollytab);
      fclose(df);
    }
  }

/* Did we get the parameters we need? */
  if(mydollytab->meserver && !flag_f && !flag_cargs) {
    fprintf(stderr, "Missing parameter -f <configfile>\n");
    exit(1);
  }
  if(flag_cargs) {
    if(strlen(mydollytab->outfile) == 0) {
      fprintf(stderr,"outfile via '-O FILE' must be set\n");
      exit(1);
    }
    if(strlen(mydollytab->infile) == 0) {
      fprintf(stderr,"inputfile via '-I [FILE|-]' must be set\n");
      exit(1);
    }
    if(strlen(dollytab) == 0) {
      generated_dolly = 1;
      strcpy(dollytab,"/tmp/dollygenXXXXXX");
      fd = mkstemp(dollytab);
      df = fdopen(fd,"w");
      if(df == NULL) {
        printf("Could not open temporary dollytab");
      }
      fprintf(df,"infile %s\n",mydollytab->infile);
      fprintf(df,"outfile %s\n",mydollytab->outfile);
      fprintf(df,"server %s\n",mydollytab->myhostname);
      fprintf(df,"firstclient %s\n",mydollytab->hostring[0]);
      fprintf(df,"lastclient %s\n",mydollytab->hostring[nr_hosts-1]);
      fprintf(df,"clients %u\n",mydollytab->hostnr);
      for(i = 0; i < mydollytab->hostnr; i++) {
        fprintf(df,"%s\n",mydollytab->hostring[i]);
        if(mydollytab->flag_v) { fprintf(stderr,"writing '%s'\n'",mydollytab->hostring[i]); }
      }
      fprintf(df,"endconfig\n");
      fclose(df);
    }
  }

if(mydollytab->meserver && mydollytab->flag_v) {
    print_params(mydollytab);
  }

/* try to open standard terminal output */
  /* if it fails, redirect stdtty to stderr */
  stdtty = fopen("/dev/tty","a");
  if (stdtty == NULL) {
      stdtty = stderr;
    }

if(mydollytab->flag_d) {
    if (mydollytab->hostnr < 1) {
      fprintf(stderr, "\nAt least one node is needed, use the -H parameter\n");
      exit(1);
    }
    fprintf(stderr, "\nStart the dolly client on all nodes...\n");
    open_insystemdsocks(mydollytab);
  }

if(mydollytab->flag_v) {
    fprintf(stderr, "\nTrying to build ring...\n");
  }
  
  alarm(timeout);

buildring(mydollytab);
  
  if(mydollytab->meserver) {
    fprintf(stdtty, "Server: Sending data...\n");
  } else {    
    if(mydollytab->flag_v) {
      fprintf(stdtty, "Receiving...\n");
    }
  }

transmit(mydollytab);
  /* remove the generated dollytab */
  if(generated_dolly) {
    unlink(dollytab);
  }
  close(datain[0]);
  close(ctrlin);
  close(datasock);
  close(ctrlsock);
  for(i = 0; i < mydollytab->nr_childs; i++) {
    close(ctrlout[i]);
    close(dataout[i]);
  }
  if(mydollytab->flag_v) {
    fprintf(stderr, "\n");
  }

fclose(stdtty);
  for(i = 0; i < mydollytab->hostnr; i++) {
    free(mydollytab->hostring[i]);
  }
  free(mydollytab->hostring);
  free(mydollytab);
 
  exit(0);
}
07070100000008000081A4000000000000000000000001623B5E140000008C000000000000000000000000000000000000001800000000dolly-0.64.2/dolly.confinfile /dev/sda5
outfile /dev/sda5
server node1
hyphennormal
firstclient node2
lastclient node5
clients 4
node2
node3
node4
node5
endconfig
07070100000009000081A4000000000000000000000001623B5E140000084E000000000000000000000000000000000000001500000000dolly-0.64.2/dolly.h#ifndef DOLLY_H
#define DOLLY_H
static const char version_string[] = "0.64.2, 23-MAR-2022";

#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/poll.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/time.h>
#include <sys/mman.h>
#include <netinet/tcp.h>
#include <assert.h>
#include <ctype.h>
#include <signal.h>

#include "dollytab.h"
#include "transmit.h"

#define DOLLY_NONBLOCK 1                 /* Use nonblocking network sockets */
#define WRITE 1
#define READ 2

extern FILE *stdtty;           /* file pointer to the standard terminal tty */

/* Clients need the ports before they can listen, so we use defaults. */
extern const unsigned int dataport;
extern const unsigned int ctrlport;
extern const char* host_delim;

/* File descriptors for file I/O */
extern int input, output;

/* Numbers for splitted input/output files */
extern unsigned int input_nr, output_nr;

/* size of buffers for TCP sockets (approx. 100KB, multiple of 4 KB) */
extern unsigned int buffer_size ;

#define SCKBUFSIZE buffer_size
/* Normal sockets for data transfer */
extern int datain[MAXFANOUT], dataout[MAXFANOUT];
extern int datasock;

/* Special sockets for control information */
extern int ctrlin, ctrlout[MAXFANOUT];
extern int ctrlsock;

extern unsigned long long maxbytes; /* max bytes to transfer */
extern unsigned long long maxcbytes;/*     --  "  --  in compressed mode */
extern int dosync;                  /* sync() after transfer */
extern int timeout;                 /* Timeout for startup */
extern int verbignoresignals;       /* warn on ignore signal errors */

extern int max_retries;
extern char dollytab[256];

extern int flag_log;
extern char logfile[256];

/* Pipe descriptor in case data must be uncompressed before write */
extern int pd[2];
/* Pipe descriptor in case input data must be compressed */
extern int id[2];

/* PIDs of child processes */
extern int in_child_pid, out_child_pid;

#endif
0707010000000A000081A4000000000000000000000001623B5E1400000157000000000000000000000000000000000000001B00000000dolly-0.64.2/dolly.service[Unit]
Description=Dolly client daemon
Wants=dolly.socket
After=network.target
After=firewalld.service
After=iptables.service
Documentation=https://github.com/openSUSE/dolly

[Service]
Type=oneshot
Restart=no
ExecStart=/usr/sbin/dolly
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process

[Install]
WantedBy=multi-user.target
Also=dolly.socket
0707010000000B000081A4000000000000000000000001623B5E14000000DE000000000000000000000000000000000000001A00000000dolly-0.64.2/dolly.socket[Unit]
Description=Dolly local socket
Before=dolly.service

[Socket]
ListenStream=0.0.0.0:9996
Accept=no
Service=dolly.service
TriggerLimitIntervalSec=2
FlushPending=yes
SocketMode=0666

[Install]
WantedBy=sockets.target
0707010000000C000081A4000000000000000000000001623B5E14000000B6000000000000000000000000000000000000002000000000dolly-0.64.2/dolly_firewall.xml<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>Dolly</short>
  <description>Enables TCP ports for Dolly</description>
  <port protocol="tcp" port="9996-9998"/>
</service>
0707010000000D000081A4000000000000000000000001623B5E1400003CD4000000000000000000000000000000000000001800000000dolly-0.64.2/dollytab.c#include "dollytab.h"
/* init the dollytab struct */
void init_dollytab(struct dollytab * mdt) {
  mdt->flag_v = 0;
  memset(mdt->myhostname,'\0',sizeof(mdt->myhostname));
  memset(mdt->servername,'\0',sizeof(mdt->servername));
  memset(mdt->infile,'\0',sizeof(mdt->infile));
  memset(mdt->outfile,'\0',sizeof(mdt->infile));
  memset(mdt->nexthosts,0,sizeof(mdt->nexthosts));
  memset(mdt->add_name,'\0',sizeof(mdt->add_name));
  mdt->meserver = 0;
  mdt->compressed_in = 0;
  mdt->compressed_out = 0;
  mdt->output_split = 0;
  mdt->input_split = 0;
  mdt->add_nr = 0;
  mdt->add_primary = 0;
  mdt->add_mode = 0;
  mdt->nr_childs = 0;
  mdt->hostnr = 0;
  mdt->melast = 0;
  mdt->hyphennormal = 0;
  mdt->fanout = 1;
  mdt->resolve = 0;
  mdt->dollybufsize = 0;
  mdt->segsize = 0;
  mdt->t_b_size = 4096;
  mdt->hostring = NULL;
}

/* Parses the config-file. The path to the file is given in dollytab */
void parse_dollytab(FILE *df,struct dollytab * mydollytab) {
  char str[256];
  char *sp, *sp2;
  unsigned int i;
  int me = -2;
	int family, name_status;
  int fm = AF_INET;
  char *mname = NULL;
	char host[NI_MAXHOST];
  struct ifaddrs *ifaddr, *ifa;
  /* Read the parameters... */
  /* First we want to know the input filename */
  if(fgets(str, 256, df) == NULL) {
    fprintf(stderr, "errno = %d\n", errno);
    perror("fgets for infile");
    exit(1);
  }
  sp2 = str;
  if(strncmp("compressed ", sp2, 11) == 0) {
    mydollytab->compressed_in = 1;
    sp2 += 11;
  } else {
    mydollytab->compressed_in = 0;
  }
  if(strncmp("infile ", sp2, 7) != 0) {
    fprintf(stderr, "Missing 'infile ' in config-file.\n");
    exit(1);
  }
  sp2 += 7;
  if(sp2[strlen(sp2)-1] == '\n') {
    sp2[strlen(sp2)-1] = '\0';
  }
  if((sp = strchr(sp2, ' ')) == NULL) {
    sp = sp2 + strlen(sp2);
  }
  if(mydollytab->compressed_in && (strncmp(&sp2[sp - sp2 - 3], ".gz", 3) != 0)) {
    char tmp_str[256];
    strncpy(tmp_str, sp2, sp - sp2);
    tmp_str[sp - sp2] = '\0';
    fprintf(stderr,
      "WARNING: Compressed outfile '%s' doesn't end with '.gz'!\n",
      tmp_str);
    }
    strncpy(mydollytab->infile, sp2, sp - sp2);
    sp++;
    if(strcmp(sp, "split") == 0) {
      mydollytab->input_split = 1;
    }
    
    /* Then we want to know the output filename */
    if(fgets(str, 256, df) == NULL) {
      perror("fgets for outfile");
      exit(1);
    }
    sp2 = str;
    if(strncmp("compressed ", sp2, 11) == 0) {
      mydollytab->compressed_out = 1;
      sp2 += 11;
    }
    if(strncmp("outfile ", sp2, 8) != 0) {
      fprintf(stderr, "Missing 'outfile ' in config-file.\n");
      exit(1);
    }
    sp2 += 8;
    if(sp2[strlen(sp2)-1] == '\n') {
      sp2[strlen(sp2)-1] = '\0';
    }
    if((sp = strchr(sp2, ' ')) == NULL) {
      sp = sp2 + strlen(sp2);
    }
    if(mydollytab->compressed_out && (strncmp(&sp2[sp - sp2 - 3], ".gz", 3) != 0)) {
      char tmp_str[256];
      strncpy(tmp_str, sp2, sp - sp2);
      tmp_str[sp - sp2] = '\0';
      fprintf(stderr,
        "WARNING: Compressed outfile '%s' doesn't end with '.gz'!\n",
        tmp_str);
    }
    strncpy(mydollytab->outfile, sp2, sp - sp2);
    sp++;
    if(strncmp(sp, "split ", 6) == 0) {
      unsigned long long size = 0;
      char *s = sp+6;
      while(isdigit(*s)) {
        size *= 10LL;
        size += (unsigned long long)(*s - '0');
        s++;
      }
      switch(*s) {
        case 'T': size *= 1024LL*1024LL*1024LL*1024LL; break;
        case 'G': size *= 1024LL*1024LL*1024LL; break;
        case 'M': size *= 1024LL*1024LL; break;
        case 'k': size *= 1024LL; break;
        default:
          fprintf(stderr, "Unknown multiplier '%c' for split size.\n", *s);
          break;
      }
      mydollytab->output_split = size;
      str[sp - str - 1] = '\0';
    }
  
  /* Get the optional TCPMaxSeg size */ 
  if(fgets(str, 256, df) == NULL) {
    perror("fgets on segsize or fanout");
    exit(1);
  }
  if(strncmp("segsize ", str, 8) == 0) {
    if(str[strlen(str)-1] == '\n') {
      str[strlen(str)-1] = '\0';
    }
    sp = strchr(str, ' ');
    if(sp == NULL) {
      fprintf(stderr, "Error segsize line.\n");
      exit(1);
    }
    mydollytab->segsize = atoi(sp + 1);
    if(fgets(str, 256, df) == NULL) {
      perror("fgets after segsize");
      exit(1);
    }
  }

/* Get the optional extra network interfaces */
  /* Form of the line: add <nr_extra_interfaces>:<postfix>{:<postfix>} */
  if((strncmp("add ", str, 4) == 0) || (strncmp("add2 ", str, 5) == 0)) {
    char *s1, *s2;
    int max = 0, i;

if(strncmp("add ", str, 4) == 0) {
      mydollytab->add_mode = 1;
    }
    if(strncmp("add2 ", str, 5) == 0) {
      mydollytab->add_mode = 2;
    }
    if(mydollytab->add_mode == 0) {
      fprintf(stderr,
	      "Bad add_mode: Choose 'add' or 'add2' in config-file.\n");
      exit(1);
    }
    
    s1 = str + 4;
    s2 = s1;
    while((*s2 != ':' && *s2 != '\n' && *s2 != 0)) s2++;
    if(*s2 == 0) {
      fprintf(stderr, "Error in add line: First colon missing.\n");
      exit(1);
    }
    *s2 = 0;
    max = atoi(s1);
    if(max < 0) {
      fprintf(stderr, "Error in add line: negative number.\n");
      exit(1);
    }
    if(max >= MAXFANOUT) {
      fprintf(stderr, "Error in add line: Number larger than MAXFANOUT.\n");
      exit(1);
    }
    if (max==0) {
      /* change names of primary interface */
      mydollytab->add_primary = 1;
      s1 = s2 + 1;
      s2++;
      while((*s2 != ':' && *s2 != '\n' && *s2 != 0)) s2++;
      if(*s2 == 0) {
        fprintf(stderr, "Error in add line: Preliminary end.\n");
        exit(1);
      }
      *s2 = 0;
      strcpy(mydollytab->add_name[0], s1);
    } else {
      for(i = 0; i < max; i++) {
	s1 = s2 + 1;
	s2++;
	while((*s2 != ':' && *s2 != '\n' && *s2 != 0)) s2++;
	if(*s2 == 0) {
	  fprintf(stderr, "Error in add line: Preliminary end.\n");
	  exit(1);
	}
	*s2 = 0;
	strcpy(mydollytab->add_name[i], s1);
      }
    }
    mydollytab->add_nr = max;
    if(fgets(str, 256, df) == NULL) {
      perror("fgets after add");
      exit(1);
    }
  }
  
  /* Get the fanout (1 = linear list, 2 = binary tree, ... */
  if(strncmp("fanout ", str, 7) == 0) {
    if(str[strlen(str)-1] == '\n') {
      str[strlen(str)-1] = '\0';
    }
    sp = strchr(str, ' ');
    if(sp == NULL) {
      fprintf(stderr, "Error in fanout line.\n");
      exit(1);
    }
    mydollytab->fanout = atoi(sp + 1);
    if(fgets(str, 256, df) == NULL) {
      perror("fgets after fanout");
      exit(1);
    }
  }

/*
   * The parameter "hyphennormal" means that the hyphen '-' is treated
   * as any other character. The default is to treat it as a separator
   * between base hostname and the number of the node.
   */
  if(strncmp("hyphennormal", str, 12) == 0) {
    mydollytab->hyphennormal = 1;
    if(fgets(str, 256, df) == NULL) {
      perror("fgets after hyphennormal");
      exit(1);
    }
  }
  if(strncmp("hypheninterface", str, 12) == 0) {
    mydollytab->hyphennormal = 1;
    if(fgets(str, 256, df) == NULL) {
      perror("fgets after hypheninterface");
      exit(1);
    }
  }
  
  /* Get the server's name. */
  if(strncmp("server ", str, 7) != 0) {
    fprintf(stderr, "Missing 'server' in config-file.\n");
    exit(1);
  }
  if(str[strlen(str)-1] == '\n') {
    str[strlen(str)-1] = '\0';
  }
  sp = strchr(str, ' ');
  if(sp == NULL) {
    fprintf(stderr, "Error in firstclient line.\n");
    exit(1);
  }
  strncpy(mydollytab->servername, sp+1, strlen(sp));

/* 
     disgusting hack to make -S work.  If the server name
     specified in the file is wrong bad things will probably happen!
  */
  
  if(mydollytab->meserver == 2){
    (void) strcpy(mydollytab->myhostname,mydollytab->servername);
    mydollytab->meserver = 1;
  }

if(!(mydollytab->meserver ^ (strcmp(mydollytab->servername, mydollytab->myhostname) != 0))) {
    fprintf(stderr,
	    "Commandline parameter -s and config-file disagree on server!\n");
    fprintf(stderr, "  My name is '%s'.\n", mydollytab->myhostname);
    fprintf(stderr, "  The config-file specifies '%s'.\n", mydollytab->servername);
    exit(1);
  }
  
  /* We need to know the FIRST host of the ring. */
  /* (Do we still need the firstclient?)         */
  if(fgets(str, 256, df) == NULL) {
    perror("fgets for firstclient");
    exit(1);
  }
  if(strncmp("firstclient ", str, 12) != 0) {
    fprintf(stderr, "Missing 'firstclient ' in config-file.\n");
    exit(1);
  }
  if(str[strlen(str)-1] == '\n') {
    str[strlen(str)-1] = '\0';
  }
  sp = strchr(str, ' ');
  if(sp == NULL) {
    fprintf(stderr, "Error in firstclient line.\n");
    exit(1);
  }

/* We need to know the LAST host of the ring. */
  if(fgets(str, 256, df) == NULL) {
    perror("fgets for lastclient");
    exit(1);
  }
  if(strncmp("lastclient ", str, 11) != 0) {
    fprintf(stderr, "Missing 'lastclient ' in config-file.\n");
    exit(1);
  }
  if(str[strlen(str)-1] == '\n') {
    str[strlen(str)-1] = '\0';
  }
  sp = strchr(str, ' ');
  if(sp == NULL) {
    fprintf(stderr, "Error in lastclient line.\n");
    exit(1);
  }
  if(strcmp(mydollytab->myhostname, sp+1) == 0) {
    mydollytab->melast = 1;
  } else {
    mydollytab->melast = 0;
  }

/* Read in all the participating hosts. */
  if(fgets(str, 256, df) == NULL) {
    perror("fgets for clients");
    exit(1);
  }
  if(strncmp("clients ", str, 8) != 0) {
    fprintf(stderr, "Missing 'clients ' in config-file.\n");
    exit(1);
  }
  mydollytab->hostnr = atoi(str+8);
  if((mydollytab->hostnr < 1) || (mydollytab->hostnr > MAXHOSTS)) {
    fprintf(stderr, "I think %u numbers of hosts doesn't make much sense.\n",
	    mydollytab->hostnr);
    exit(1);
  }
  /* get a list to all availabel interfaces */
	if (getifaddrs(&ifaddr) == -1) {
		perror("getifaddrs");
		exit(EXIT_FAILURE);
	}
  mydollytab->hostring = (char **)malloc(mydollytab->hostnr * sizeof(char *));
  for(i = 0; i < mydollytab->hostnr; i++) {
    if(fgets(str, 256, df) == NULL) {
      char errstr[256];
      sprintf(errstr, "gets for host %u", i);
      perror(errstr);
      exit(1);
    }
    if(str[strlen(str)-1] == '\n') {
      str[strlen(str)-1] = '\0';
    }
    mydollytab->hostring[i] = (char *)malloc(strlen(str)+1);
    strcpy(mydollytab->hostring[i], str);

/* Try to find next host in ring */
    /* if(strncmp(mydollytab->hostring[i], mydollytab->myhostname, strlen(mydollytab->myhostname)) == 0) { */
    for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
      if (ifa->ifa_addr == NULL) {
        continue;
      }
      family = ifa->ifa_addr->sa_family;
      if (family == fm) {
        name_status = getnameinfo( ifa->ifa_addr, (family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6) , host , NI_MAXHOST , NULL , 0 , NI_NUMERICHOST);
        if (name_status != 0) {
          printf("getnameinfo() failed: %s\n", gai_strerror(name_status));
          exit(EXIT_FAILURE);
        }
        if(strcmp(mydollytab->hostring[i],host) == 0) {
          me = i;
          strncpy(mydollytab->myhostname,host,strlen(host));
        } else if(!mydollytab->hyphennormal) {
          /* Check if the hostname is correct, but a different interface is used */
          if((sp = strchr(mydollytab->hostring[i], '-')) != NULL) {
            if(strncmp(mydollytab->hostring[i], host, sp - mydollytab->hostring[i]) == 0) {
              me = i;
              strncpy(mydollytab->myhostname,host,strlen(host));
            }
          }
        }
      }
    }
    /* check if hostname was in the configuration and not an ip */
    if(me == -2) {
       mname = getenv("MYNODENAME");
       if(mname != NULL) {
          if(strcmp(mydollytab->hostring[i],mname) == 0) {
            strncpy(mydollytab->myhostname,mname,strlen(mname));
            me = i;
            if(i == mydollytab->hostnr-1) {
             mydollytab->melast = 1;
            }
          }
       }
    }
    if(me == -2) {
       mname = getenv("HOST");
       if(mname != NULL) {
          if(strcmp(mydollytab->hostring[i],mname) == 0) {
            strncpy(mydollytab->myhostname,mname,strlen(mname));
            me = i;
            if(i == mydollytab->hostnr-1) {
             mydollytab->melast = 1;
            }
          }
       }
    }
  }
	freeifaddrs(ifaddr);
  if(!mydollytab->meserver && (me == -2)) {
    fprintf(stderr, "Couldn't find myself '%s' in hostlist.\n",mydollytab->myhostname);
    exit(1);
  }
  
  /* Build up topology */
  mydollytab->nr_childs = 0;
  
  for(i = 0; i < mydollytab->fanout; i++) {
    if(mydollytab->meserver) {
      if(i + 1 <= mydollytab->hostnr) {
        mydollytab->nexthosts[i] = i;
        mydollytab->nr_childs++;
      }
    } else {
      if((me + 1) * mydollytab->fanout + 1 + i <= mydollytab->hostnr) {
        mydollytab->nexthosts[i] = (me + 1) * mydollytab->fanout + i;
        mydollytab->nr_childs++;
      }
    }
  }
  /* In a tree, we might have multiple last machines. */
  if(mydollytab->nr_childs == 0) {
    mydollytab->melast = 1;
  }

/* Did we reach the end? */
  if(fgets(str, 256, df) == NULL) {
    perror("fgets for endconfig");
    exit(1);
  }
  if(strncmp("endconfig", str, 9) != 0) {
    fprintf(stderr, "Missing 'endconfig' in config-file.\n");
    exit(1);
  }
  if((mydollytab->nr_childs > 1) && (mydollytab->add_nr > 0)) {
    fprintf(stderr, "Currently dolly supports either a fanout > 1\n"
	    "OR the use of extra network links, but not both.\n");
    exit(1);
  }
  if(mydollytab->flag_v) {
    fprintf(stderr, "done.\n");
  }
  if(mydollytab->flag_v) {
    if(!mydollytab->meserver) {
      fprintf(stderr, "I'm number %d\n", me);
    }
  }
}

/*
 * Clients read the parameters from the control-socket.
 * As they are already parsed from the config-file by the server,
 * we don't do much error-checking here.
 */
void getparams(int f,struct dollytab * mydollytab) {
  size_t readsize;
  ssize_t writesize;
  int fd, ret;
  FILE *dolly_df = NULL;
  char tmpfile[32] = "/tmp/dollytmpXXXXXX";

if(mydollytab->flag_v) {
    fprintf(stderr, "Trying to read parameters...");
    fflush(stderr);
  }
  mydollytab->dollybuf = (char *)malloc(mydollytab->t_b_size);
  if(mydollytab->dollybuf == NULL) {
    fprintf(stderr, "Couldn't get memory for dollybuf.\n");
    exit(1);
  }

readsize = 0;
  do {
    ret = read(f, mydollytab->dollybuf + readsize, mydollytab->t_b_size);
    if(ret == -1) {
      perror("read in getparams while");
      exit(1);
    } else if((ssize_t) ret == mydollytab->t_b_size) {  /* This will probably not happen... */
      fprintf(stderr, "Ups, the transmitted config-file seems to long.\n"
	      "Please rewrite dolly.\n");
      exit(1);
    }
    readsize += ret;
  } while(ret == 1448);
    mydollytab->dollybufsize = readsize;

/* Write everything to a file so we can use parse_dollytab(FILE *)
     afterwards.  */
#if 0
  tmpfile = tmpnam(NULL);
  fd = open(tmpfile, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
#endif
  fd = mkstemp(tmpfile);
  if(fd == -1) {
    perror("Opening temporary file 'tmp' in getparams");
    exit(1);
  }
  writesize = write(fd, mydollytab->dollybuf, readsize);
  if(writesize == -1) {
    perror("Writing temporary file 'tmp' in getparams");
    exit(1);
  }
  dolly_df = fdopen(fd, "r");
  if(dolly_df == NULL) {
    perror("fdopen in getparams");
    exit(1);
  }
  rewind(dolly_df);
  if(mydollytab->flag_v) {
    fprintf(stderr, "done.\n");
  }
  if(mydollytab->flag_v) {
    fprintf(stderr, "Parsing parameters...");
    fflush(stderr);
  }
  parse_dollytab(dolly_df,mydollytab); 
  fclose(dolly_df);
  close(fd);
  unlink(tmpfile);
}

0707010000000E000081A4000000000000000000000001623B5E140000099E000000000000000000000000000000000000001800000000dolly-0.64.2/dollytab.h#ifndef DOLLYTAB_H
#define DOLLYTAB_H
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <ifaddrs.h>

#include "resolve.h"

#define MAXFANOUT 8
#define MAXHOSTS 65536

/* Size of blocks transf. to/from net/disk and one less than that */

struct dollytab {
  unsigned int flag_v;                 /* verbose */
  unsigned int flag_d;                 /* systemd */
  char myhostname[256];
  char servername[256];
  char infile[256];
  char outfile[256];
  char add_name[MAXFANOUT][32];
  unsigned int meserver; /* This machine sends the data. */
  int nexthosts[MAXFANOUT];
  int compressed_in;           /* compressed transfer or not? */
  int compressed_out;          /* write results compressed? */
  /* Sizes for splitted input/output files. 0 means "don't split" (default) */
  unsigned long long output_split;
  unsigned long long input_split;
  unsigned int fanout;   /* default is linear list */
  unsigned int add_nr; /* Number of extra links for data transfers */
  int add_primary; /* Addition Post- or Midfix for primary interf. */
/* Postfix or midfix? */
/* 0 = undefined, 1 = postfix, 2 = midfix */
/* Some explanations about the meanings of postfix and midfix:
   postfix ex.: hostname = "cops1", postfix = "-giga" -> "cops1-giga"
   midfix ex.: hostname = "xibalba101", midfix = "-fast" -> "xibalba-fast101"
*/
  unsigned short add_mode;
  unsigned int nr_childs;
  unsigned int hostnr;
  unsigned int melast;   /* This machine doesn't have children to send data */
  /* Postfix of extra network interface names */
  int hyphennormal;      /* '-' normal or interf. sep. in hostnames */
/* when 4 resolve hostanme to ipv4 addresses, when 6 try ipv6 addresse, do not resolve if anything else */
  unsigned int resolve;
  size_t dollybufsize;
  unsigned int segsize; /* TCP Segment Size (useful for benchmarking only) */
  ssize_t t_b_size; /* Size of blocks transf. to/from net/disk and one less than that */
  char **hostring;
  char *dollybuf;
};

void init_dollytab(struct dollytab *);
/* Parses the config-file. The path to the file is given in dollytab */
void parse_dollytab(FILE *df,struct dollytab*);

/*
 * Clients read the parameters from the control-socket.
 * As they are already parsed from the config-file by the server,
 * we don't do much error-checking here.
 */
void getparams(int f,struct dollytab*);
#endif
0707010000000F000081A4000000000000000000000001623B5E14000011A7000000000000000000000000000000000000001500000000dolly-0.64.2/files.c#include "files.h"
#include "dolly.h"
/*
 * If "try_hard" is 1, call must be succesful.
 * If try_hard is 1 and an input file can't be opened, the program terminates.
 * If try_hard is not 1 and an input file can't be opened, -1 is returend.
 */
int open_infile(int try_hard,struct dollytab * mydollytab) {
  char name[256+16];

/* Close old input file if there is one */
  if(input != -1) {
    if(close(input) == -1) {
      perror("close() in open_infile()");
      exit(1);
    }
  }
  if(mydollytab->input_split != 0) {
    sprintf(name, "%s_%u", mydollytab->infile, input_nr);
  } else {
    strcpy(name, mydollytab->infile);
  }
  
  /* Files for input/output */
  if(!mydollytab->compressed_out) {
    /* Input is from file */
    input = open(name, O_RDONLY);
    if(input == -1) {
      if(try_hard == 1) {
        char str[strlen(name)+18];
        sprintf(str, "open inputfile '%s'", name);
        perror(str);
        exit(1);
      } else {
        return -1;
      }
    }
  } else {
    /* Input should be compressed first. */
    if(access(name, R_OK) == -1) {
      if(try_hard == 1) {
        char str[strlen(name)+18];
        sprintf(str, "open inputfile '%s'", name);
        perror(str);
        exit(1);
      } else {
        return -1;
      }
    }
    if(pipe(id) == -1) {
      perror("input pipe()");
      exit(1);
    }
    input = id[0];
    if((in_child_pid = fork()) == 0) {
      int fd;
      /* Here's the child. */
      close(id[0]);
      close(1);
      (void) !dup(id[1]);
      close(id[1]);
      if((fd = open(name, O_RDONLY)) == -1) {
        exit(1);
      }
      close(0);
      (void) !dup(fd);
      close(fd);
      if(execl("/usr/bin/gzip", "gzip", "-cf", NULL) == -1) {
        perror("execl for gzip in child");
        exit(1);
      }
    } else {
      /* Father */
      close(id[1]);
    }
  } /* endif compressed_out */
  input_nr++;
  return 0;
}

int open_outfile(int try_hard,struct dollytab * mydollytab) {
  char name[256+16];
  int is_device = 0;
  int is_pipe = 0;
  /* Close old output file, if there is one. */
  if(output != -1) {
    if(close(output) == -1) {
      perror("close() in open_outfile()");
      exit(1);
    }
  }
  if(mydollytab->output_split != 0) {
    sprintf(name, "%s_%u", mydollytab->outfile, output_nr);
  } else {
    strcpy(name, mydollytab->outfile);
  }
  /* check if file is under /dev, if not open even if the file does not exist. */
  if(strcmp("/dev/",name) > 0 ) {
    is_device = 1;
  }
  if(strcmp("-",name) == 0) {
    is_pipe = 1;
  }
  /* Setup the output files/pipes. */
  if(!mydollytab->compressed_in) {
    /* Output is to a file */
    if(!mydollytab->compressed_out && (mydollytab->output_split == 0) && is_device && !is_pipe) {
      /* E.g. partition-to-partition cloning */
      output = open(name, O_WRONLY);
    } else if(!mydollytab->compressed_out && !is_device && !is_pipe) {
      /* E.g. file to file cloning */
      output = open(name, O_WRONLY | O_CREAT, 0644);
    } else if(is_pipe) {
      output = 1;
    } else {
      /* E.g. partition-to-compressed-archive cloning */
      output = open(name, O_WRONLY | O_CREAT | O_EXCL, 0644);
    }
    if(output == -1) {
      char str[strlen(name)+19];
      sprintf(str, "open outputfile '%s'", name);
      perror(str);
      exit(1);
    }
  } else { /* Compressed_In */
    if(access(name, W_OK) == -1) {
      if(try_hard == 1) {
        char str[strlen(name)+19];
        sprintf(str, "open outputfile '%s'", name);
        perror(str);
        exit(1);
      } else {
        return -1;
      }
    }
    /* Pipe to gunzip */
    if(pipe(pd) == -1) {
      perror("output pipe");
      exit(1);
    }
    output = pd[1];
    if((out_child_pid = fork()) == 0) {
      int fd;
      /* Here's the child! */
      close(pd[1]);
      close(0);      /* Close stdin */
      (void) !dup(pd[0]);    /* Duplicate pipe on stdin */
      close(pd[0]);  /* Close the unused end of the pipe */
      if((fd = open(name, O_WRONLY)) == -1) {
        if(errno == ENOENT) {
          fprintf(stderr, "Outputfile in child does not exist.\n");
        }
        perror("open outfile in child");
        exit(1);
      }
      close(1);
      (void) !dup(fd);
      close(fd);
      /* Now stdout is redirected to our file */
      if(execl("/usr/bin/gunzip", "gunzip", "-c", NULL) == -1) {
        perror("execl for gunzip in child");
        exit(1);
      }
    } else {
      /* Father */
      close(pd[0]);
    }
  }
  output_nr++;
  return 0;
}
07070100000010000081A4000000000000000000000001623B5E14000000B7000000000000000000000000000000000000001500000000dolly-0.64.2/files.h#ifndef FILES_H
#define FILES_H
#include "dollytab.h"
int open_infile(int try_hard,struct dollytab * mydollytab);
int open_outfile(int try_hard,struct dollytab * mydollytab);

#endif
07070100000011000081A4000000000000000000000001623B5E1400000638000000000000000000000000000000000000001900000000dolly-0.64.2/movebytes.c#include "movebytes.h"
#include "dolly.h"

int movebytes(int fd, int dir, char *addr, unsigned int n,struct dollytab * mydollytab) {
  int ret, bytes;
  static int child_done = 0;
  
  bytes = 0;

if(child_done && (dir == READ)) {
    child_done = 0;
    return 0;
  }
  while(0 != n) {
    if(dir == WRITE) {
      ret = write(fd, addr, n);
    } else if(dir == READ) {
      fflush(stderr);
      ret = read(fd, addr, n);
      if(((unsigned int)ret < n) && mydollytab->compressed_out && mydollytab->meserver) {
        int wret, status;
        sleep(1);
        wret = waitpid(in_child_pid, &status, WNOHANG);
        if(wret == -1) {
          perror("waitpid");
        } else if(wret == 0) {
          fprintf(stderr, "waitpid returned 0\n");
        } else {
          if(WIFEXITED(status)) {
            if(WEXITSTATUS(status) == 0) {
              child_done++;
              return ret;
            } else {
              fprintf(stderr, "Child terminated with return value %d\n",
                WEXITSTATUS(status));
            }
          }
        }
        (void) fprintf(stderr,"read returned %d\n", ret);
      }
    } else {
      fprintf(stderr, "Bad direction in movebytes!\n");
      ret = 0;
    }
    if(ret == -1) {
#ifdef DOLLY_NONBLOCK
      if(errno == EAGAIN) {
        continue;
      }
#endif /* DOLLY_NONBLOCK */
      perror("movebytes read/write");
      fprintf(stderr, "\terrno = %d\n", errno);
      exit(1);
    } else if(ret == 0) {
      return bytes;
    } else {
      addr += ret;
      n -= ret;
      bytes += ret;
    }
  }
  return bytes;
}

07070100000012000081A4000000000000000000000001623B5E140000009F000000000000000000000000000000000000001900000000dolly-0.64.2/movebytes.h#ifndef MOVEBYTES_H
#define MOVEBYTES_H
#include "dollytab.h"
int movebytes(int fd, int dir, char *addr, unsigned int n,struct dollytab * mydollytab);

#endif
07070100000013000081A4000000000000000000000001623B5E1400000ABD000000000000000000000000000000000000001700000000dolly-0.64.2/resolve.c#include "resolve.h"
#include<ifaddrs.h>
/* resolves the given hostname to ip address 
 * following conditions are met
 * dollytab.resolve = 1 -> use the first resolved ip address
 * dollytab.resolve = 4 -> force ipv4
 * dollytab.resolve = 6 -> force ipv6
 */
int resolve_host(char *hostname , char *ip, int mode) {
	struct addrinfo hints, *servinfo, *p;
	struct sockaddr_in *h;
	int rv;

memset(&hints, 0, sizeof hints);
  if(mode == 4) {
    hints.ai_family = AF_INET;
  } else if (mode == 6) {
    hints.ai_family = AF_INET6;
  } else {
    hints.ai_family = AF_UNSPEC;
  }
	hints.ai_socktype = SOCK_STREAM;

if ( (rv = getaddrinfo( hostname , NULL , &hints , &servinfo)) != 0) 
	{
		fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
		return 1;
	}

// loop through all the results and connect to the first we can
	for(p = servinfo; p != NULL; p = p->ai_next) 
	{
		h = (struct sockaddr_in *) p->ai_addr;
		strcpy(ip , inet_ntoa( h->sin_addr ));
	}
	freeaddrinfo(servinfo); // all done with this structure
	return 0;
}

int resolve_host_replace(char *hostname , int mode) {
  char tmp_str[256];
  int retval = 0;
  retval = resolve_host(hostname,tmp_str,mode);
  if(retval == 0) {
    strncpy(hostname,tmp_str,256);
  }
  return retval;
}

int get_default_ip(char *hostname , int mode)  {
/*
 * Find local ip used as source ip in ip packets.
 * Read the /proc/net/route file
 */
  FILE *fhandle;
  char line[100] , *interface , *c;
  interface = NULL;
  fhandle = fopen("/proc/net/route" , "r");
  while(fgets(line , 100 , fhandle)) {
    interface = strtok(line , " \t");
    c = strtok(NULL , " \t");
    if(interface!=NULL && c!=NULL) {
      if(strcmp(c , "00000000") == 0) {
        break;
      }
    }
  }
  fclose(fhandle);
/* which family do we require , AF_INET or AF_INET6 */
  int fm = AF_UNSPEC;
  if(mode == 4) {
    fm = AF_INET;
  } else if (mode == 6) {
    fm = AF_INET6;
  }
  struct ifaddrs *ifaddr, *ifa;
	int family , s;
	char host[NI_MAXHOST];
	if (getifaddrs(&ifaddr) == -1) {
		perror("getifaddrs");
		exit(EXIT_FAILURE);
	}
/* Walk through linked list, maintaining head pointer so we can free list later */
	for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
		if (ifa->ifa_addr == NULL) {
			continue;
		}
		family = ifa->ifa_addr->sa_family;
		if(strcmp( ifa->ifa_name , interface) == 0) {
			if (family == fm) {
				s = getnameinfo( ifa->ifa_addr, (family == AF_INET) ? 
            sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6) , 
            host , NI_MAXHOST , NULL , 0 , NI_NUMERICHOST);
				if (s != 0) {
					printf("getnameinfo() failed: %s\n", gai_strerror(s));
					exit(EXIT_FAILURE);
				}
				strncpy(hostname,host,strlen(host));
			}
		}
	}
	freeifaddrs(ifaddr);
	return 0;
}

07070100000014000081A4000000000000000000000001623B5E14000002DE000000000000000000000000000000000000001700000000dolly-0.64.2/resolve.h#ifndef RESOLVE_H
#define RESOLVE_H
#include<stdio.h> //printf
#include<string.h> //memset
#include<stdlib.h> //for exit(0);
#include<sys/socket.h>
#include<errno.h> //For errno - the error number
#include<netdb.h>	//hostent
#include<arpa/inet.h>
/* resolves the given hostname to ip address 
 * following conditions are met
 * dollytab.resolve = 1 -> use the first resolved ip address
 * dollytab.resolve = 4 -> force ipv4
 * dollytab.resolve = 6 -> force ipv6
 */
int resolve_host(char *hostname , char *ip, int mode);
/* same but replaces the hostname */
int resolve_host_replace(char *hostname , int mode);
/* get the ip address for the interface used on the default route */
int get_default_ip(char *hostname , int mode);
#endif
07070100000015000081A4000000000000000000000001623B5E1400000436000000000000000000000000000000000000002400000000dolly-0.64.2/send_multiple_files.pl#!/usr/bin/perl
# quick way of sending multiple files to multiple nodes
#
use strict;

# basic dolly stuff
my $DOLLY = "/usr/sbin/dolly";
my $ARGS = "-dqs";

# list of nodes, adjust to your setup
my @NODES = qw(sle15sp42
       	sle15sp43
       	sle15sp44
	);

# files to transfert, adjust with your needs
# by default the output name will be the same as the input name 
my @INFILES = qw(/tmp/warewulf4-4.2.0-lp154.6.3.x86_64.rpm
		/tmp/warewulf4-overlay-4.2.0-lp154.6.3.x86_64.rpm
		);

# transfert all files from a directory
# !! the directory must be present on the client nodes
my @ALL_FILES_IN_DIR = glob("/tmp/*.*");

my @ALL = (@INFILES, @ALL_FILES_IN_DIR);

my $NODES;
foreach my $n (@NODES) { 
	$n and $NODES = "$n" . "," . $NODES; 
	}
# remove last comma
chop($NODES);

foreach my $INFILE (@ALL) {
	print("---------------------------------\n");
	print("Sending $INFILE to $NODES\n");
	# same input and output name
	my $OUTFILE= $INFILE;
	#print("$DOLLY $ARGS -H $NODES -I $INFILE -O $OUTFILE\n");
	system("$DOLLY $ARGS -H $NODES -I $INFILE -O $OUTFILE");
	sleep 1;
}
07070100000016000081A4000000000000000000000001623B5E140000378E000000000000000000000000000000000000001800000000dolly-0.64.2/transmit.c#include "transmit.h"
#include "dolly.h"
#include "movebytes.h"
#include "files.h"
/* The main transmitting function */
void transmit(struct dollytab * mydollytab) {
  char *buf_addr, *buf;
  unsigned long long t, transbytes = 0, lastout = 0;
  unsigned int bytes = mydollytab->t_b_size;
  int ret = 1, maxsetnr = 0;
  unsigned long td = 0, tdlast = 0;
  unsigned int i = 0,j = 0, a = 0;
  FILE *logfd = NULL;
  struct timeval tv1, tv2, tv3;
  fd_set real_set, cur_set;

buf_addr = (char *)malloc(2 * (mydollytab->t_b_size-1));
  buf = (char *)((unsigned long)(buf_addr + mydollytab->t_b_size-1) & (~(mydollytab->t_b_size-1)));

t = 0x7fffffff;
  t <<= 32;
  t |= 0xffffffff;
  maxbytes = 0;
#define ADJ_MAXSET(a) if((a)>maxsetnr){maxsetnr=(a);}
  if(!mydollytab->meserver) {
    FD_ZERO(&real_set);
    FD_SET(datain[0], &real_set);
    FD_SET(ctrlin, &real_set);
    ADJ_MAXSET(datain[0]);
    ADJ_MAXSET(ctrlin);
    if(!mydollytab->melast) {
      for(i = 0; i < mydollytab->nr_childs; i++) {
        FD_SET(ctrlout[i], &real_set);  /* Check ctrlout too for backflow */
        ADJ_MAXSET(ctrlout[i]);
      }
    }
    maxsetnr++;
  } else {
    FD_ZERO(&real_set);
    for(i = 0; i < mydollytab->nr_childs; i++) {
      FD_SET(ctrlout[i], &real_set);
      ADJ_MAXSET(ctrlout[i]);
    }
    maxsetnr++;
  }
#undef ADJ_MAXSET
  
  gettimeofday(&tv1, NULL);
  tv2 = tv1;
  
  while((mydollytab->meserver && (ret > 0)) || (!mydollytab->meserver && (t > 0))) {
    /* The server writes data as long has it can to the data stream.
       When there's nothing left, it writes the actual number of bytes
       to the control stream (as long long int).
    */
    if(mydollytab->meserver) {
      /*
       * Server part
       */
      ret = movebytes(input, READ, buf, bytes,mydollytab);
      maxbytes += ret;
      if(ret > 0) {
        if(mydollytab->add_nr == 0) {
          for(i = 0; i < mydollytab->nr_childs; i++) {
            movebytes(dataout[i], WRITE, buf, ret,mydollytab);
          }
        } else {
          static unsigned int cur_out = 0;
          movebytes(dataout[cur_out], WRITE, buf, ret,mydollytab);
          cur_out++;
          if(cur_out > mydollytab->add_nr) {
            cur_out = 0;
          }
        }
      } else {
        /* Here: ret <= 0 */
        int res = -1;
        if(mydollytab->input_split) {
          res = open_infile(0,mydollytab);
        }
        if(!mydollytab->input_split || (res < 0)) {
          if(mydollytab->flag_v) {
            fprintf(stderr, "\nRead %llu bytes from file(s).\n", maxbytes);
          }
          if(mydollytab->add_nr == 0) {
            for(i = 0; i < mydollytab->nr_childs; i++) {
              if(mydollytab->flag_v) {
                (void)fprintf(stderr, "Writing maxbytes = %llu to ctrlout\n",
                  maxbytes);
              }
              movebytes(ctrlout[i], WRITE, (char *)&maxbytes, 8,mydollytab);
              shutdown(dataout[i], 2);
            }
          } else {
            if(mydollytab->flag_v) {
              (void)fprintf(stderr, "Writing maxbytes = %llu to ctrlout\n",
                maxbytes);
            }
            movebytes(ctrlout[0], WRITE, (char *)&maxbytes, 8,mydollytab);
            for(i = 0; i <= mydollytab->add_nr; i++) {
              shutdown(dataout[i], 2);
            }
          }
      } else {
        /* Next input file opened */
        ret = 100000;
        continue;
      } /* end mydollytab->input_split */
    }
      //if(mydollytab->flag_v && (maxbytes - lastout >= 10000000)) {
      if(maxbytes - lastout >= 10000000) {
        tv3=tv2;
        gettimeofday(&tv2, NULL);
        td = (tv2.tv_sec*1000000 + tv2.tv_usec)
          - (tv1.tv_sec*1000000 + tv1.tv_usec);
        tdlast = (tv2.tv_sec*1000000 + tv2.tv_usec)
          - (tv3.tv_sec*1000000 + tv3.tv_usec);
        fprintf(stdtty,
          "\rSent MB: %.0f, MB/s: %.3f, Current MB/s: %.3f      ",
          (float)maxbytes/1000000,
          (float)maxbytes/td,(float)(maxbytes - lastout)/tdlast);
        fflush(stdtty);
        lastout = maxbytes;
      }
    } else {
      /*
       * Client part
       */
      unsigned int i, nr_descr;
      cur_set = real_set;
      ret = select(maxsetnr, &cur_set, NULL, NULL, NULL);
      if(ret == -1) {
        if(errno != EINTR) {
        /* MATHOG: (on above "if" statement)
         * Some signal was received, don't have a handler, ignore it.
         */
        perror("select");
        exit(1);
        }
        ret = 0;
      }
      if(ret < 1) {
	if(verbignoresignals) {
	  /* fr: Shouldn't that be a bit further up? */
	  (void)fprintf(stderr,
			"\nIgnoring unhandled signal (select() returned %d.\n",
			ret);
	}
      } else {
	nr_descr = ret;
	for(i = 0; i < nr_descr; i++) {
	  if(FD_ISSET(ctrlin, &cur_set)) {
	    char mybuf[128];

ret = read(ctrlin, mybuf, 128);
	    if(ret == -1) {
	      perror("read from ctrlin in transfer");
	      exit(1);
	    }
	    if(ret == 0) {
	      fprintf(stderr,
		      "Got 0 from ctrlin, but there should be something there!\n"
		      "Probably transmission interrupted, terminating.\n");
	      exit(1);
	    }
	    if(ret != 8) {
	      fprintf(stderr, "Got %d bytes from ctrlin in transfer, "
		      "expected 8.\n", ret);
	    }
	    maxbytes = *(unsigned long long *)&mybuf;
	    if(!mydollytab->melast) {
	      for(j = 0; j < mydollytab->nr_childs; j++) {
          movebytes(ctrlout[i], WRITE, (char *)&maxbytes, 8,mydollytab);
	      }
	    }
	    t = maxbytes - transbytes;
	    if(mydollytab->flag_v) {
	      fprintf(stderr,"\nMax. bytes will be %llu bytes. %llu bytes left.\n", maxbytes, t);
	    }
	    FD_CLR(ctrlin, &real_set);
	    FD_CLR(ctrlin, &cur_set);
	  } else if(FD_ISSET(datain[0], &cur_set)) {
	    /* There is data to be read from the net */
	    bytes = ((ssize_t) t >= mydollytab->t_b_size ? mydollytab->t_b_size : (ssize_t) t);
	    ret = movebytes(datain[0], READ, buf, bytes,mydollytab);
	      if(!mydollytab->output_split) {
          movebytes(output, WRITE, buf, ret,mydollytab);
	      } else {
          /* Check if output file needs to be split. */
          if((transbytes / mydollytab->output_split)
             != ((transbytes + ret) / mydollytab->output_split)) {
            size_t old_part, new_part;
            old_part = ret - (transbytes + ret) % mydollytab->output_split;
            new_part = ret - old_part;
            movebytes(output, WRITE, buf, old_part,mydollytab);
            open_outfile(1,mydollytab);
            movebytes(output, WRITE, buf + old_part, new_part,mydollytab);
          } else {
            movebytes(output, WRITE, buf, ret,mydollytab);
          }
	      } /* end input_split */
	    if(!mydollytab->melast) {
	      for(i = 0; i < mydollytab->nr_childs; i++) {
          movebytes(dataout[i], WRITE, buf, ret,mydollytab);
	      }
	    }
	    transbytes += ret;
	    t -= ret;
	    FD_CLR(datain[0], &cur_set);
	    /* Handle additional network interfaces, if available */
	    for(a = 1; a <= mydollytab->add_nr; a++) {
	      bytes = ((ssize_t)t >= mydollytab->t_b_size ? mydollytab->t_b_size :(ssize_t) t);
	      ret = movebytes(datain[a], READ, buf, bytes,mydollytab);
        movebytes(output, WRITE, buf, ret,mydollytab);
	      if(!mydollytab->melast) {
          movebytes(dataout[a], WRITE, buf, bytes,mydollytab);
	      }
	      transbytes += ret;
	      t -= ret;
	    }
	  } else { /* FD_ISSET(ctrlin[]) */
	    int foundfd = 0;

for(j = 0; j < mydollytab->nr_childs; j++) {
	      if(FD_ISSET(ctrlout[j], &cur_set)) {
          /* Backflow of control-information, just pass it on */
          ret = read(ctrlout[j], buf, mydollytab->t_b_size);
          if(ret == -1) {
            perror("read backflow in transmit");
            exit(1);
          }
          movebytes(ctrlin, WRITE, buf, ret,mydollytab);
          foundfd++;
          FD_CLR(ctrlout[j], &cur_set);
	      }
	    }
	    /* if nothing found */
	    if(foundfd == 0) {
	      fprintf(stderr,
		      "select returned without any ready fd, ret = %d.\n",
		      ret);
	      for(i = 0;(int) i < maxsetnr; i++) {
		if(FD_ISSET(i, &cur_set)) {
		  unsigned int j;
		  fprintf(stderr, "  file descriptor %u is set.\n", i);
		  for(j = 0; j < mydollytab->nr_childs; j++) {
		    if(FD_ISSET(ctrlout[j], &cur_set)) {
		      fprintf(stderr, "  (fd %u = ctrlout[%u])\n", i, j);
		    }
		  }
		  for(j = 0; j <= mydollytab->add_nr; j++) {
		    if(FD_ISSET(datain[j], &cur_set)) {
		      fprintf(stderr, "  (fd %u = datain[%u])\n", i, j);
		    }
		  }
		}
	      }
	      exit(1);
	    }
	  }
	}
      }
      if(mydollytab->flag_v && (transbytes - lastout >= 10000000)) {
	tv3=tv2;
	gettimeofday(&tv2, NULL);
	td = (tv2.tv_sec*1000000 + tv2.tv_usec)
	  - (tv1.tv_sec*1000000 + tv1.tv_usec);
	tdlast = (tv2.tv_sec*1000000 + tv2.tv_usec)
	  - (tv3.tv_sec*1000000 + tv3.tv_usec);
	fprintf(stdtty, "\rTransfered MB: %.0f, MB/s: %.3f, Current MB/s: %.3f      ", (float)transbytes/1000000, (float)transbytes/td,(float)(transbytes - lastout)/tdlast);
	fflush(stdtty);
	lastout = transbytes;
      }
    }
    alarm(0);  /* We did something, so turn off the timeout-alarm */
  } /* end while */
  gettimeofday(&tv2, NULL);
  td = (tv2.tv_sec*1000000 + tv2.tv_usec) - (tv1.tv_sec*1000000 + tv1.tv_usec);
  
  if(mydollytab->meserver) {
    if(mydollytab->flag_v) {
      fprintf(stdtty, "\rSent MB: %.0f.       \n", (float)maxbytes/1000000);
    }
 
    if(flag_log){
      logfd = fopen(logfile, "a");
      if(logfd == NULL) {
        perror("open logfile");
        exit(1);
      }
      if(mydollytab->compressed_in) {
        fprintf(logfd, "compressed ");
      }
      fprintf(logfd, "infile = '%s'\n", mydollytab->infile);
      if(mydollytab->compressed_out) {
        fprintf(logfd, "compressed ");
      }
      fprintf(logfd, "outfile = '%s'\n", mydollytab->outfile);
      if(mydollytab->flag_v) {
        if(mydollytab->segsize > 0) {
          fprintf(logfd, "TCP segment size : %u Byte (%u Byte eth)\n", 
            mydollytab->segsize,mydollytab->segsize+54);
        } else {
          fprintf(logfd,
            "Standard TCP segment size : 1460 Bytes (1514 Byte eth)\n");
        }
      } else {
        if(mydollytab->segsize > 0) {
          fprintf(logfd, " %8u", mydollytab->segsize);
        } else {
          fprintf(logfd, " %8d", 1460);
        }
      }
      
      if(mydollytab->flag_v) {
        fprintf(logfd, "Server : '%s'\n", mydollytab->myhostname);
        fprintf(logfd, "Fanout = %u\n", mydollytab->fanout);
        fprintf(logfd, "Nr of childs = %u\n", mydollytab->nr_childs);
        fprintf(logfd, "Nr of hosts = %u\n", mydollytab->hostnr);
      } else {
        fprintf(logfd, " %8u", mydollytab->hostnr);
      }
    }
  } else {
    fprintf(stderr, "Transfered MB: %.0f, MB/s: %.3f \n\n",
	    (float)transbytes/1000000, (float)transbytes/td);
    fprintf(stdtty, "\n");
  }
  
  close(output);
  if(dosync){
    sync();
    if(mydollytab->flag_v) {
      fprintf(stderr, "Synced.\n");
    }
  }
  if(mydollytab->meserver) {
    for(i = 0; i < mydollytab->nr_childs; i++) {
      if(mydollytab->flag_v) {
        fprintf(stderr, "Waiting for child %u.\n",i);
      }
      ret = movebytes(ctrlout[i], READ, buf, 8,mydollytab);
      if(ret != 8) {
        fprintf(stderr,
          "Server got only %d bytes back from client %u instead of 8\n",
          ret, i);
      }
    }
    buf[8] = 0;
    if(*(unsigned long long *)buf != maxbytes) {
      fprintf(stderr, "*** ERROR *** Didn't get correct maxbytes back!\n");
	      /* create unneeded error, so removing as only used for debugging 
	      "Got %lld (0x%016llx) instead of %lld (0x%016llx)\n",
	      *(unsigned long long *)&buf,
	      *(unsigned long long *)&buf,
	      maxbytes, maxbytes);
	      */
    } else {
      fprintf(stderr, "Transfert to all client nodes done.\n");
    }
    if(mydollytab->flag_v) {
      fprintf(stderr, "Time: %lu.%03lu\n", td / 1000000, td % 1000000);
      fprintf(stderr, "MBytes/s: %0.3f\n", (double)maxbytes / td);
      fprintf(stderr, "Aggregate MBytes/s: %0.3f\n",
	    (double)maxbytes * mydollytab->hostnr / td);
    }
    if(maxcbytes != 0) {
      fprintf(stderr, "Bytes written on each node: %llu\n", maxcbytes);
      fprintf(stderr, "MBytes/s written: %0.3f\n",
	      (double)maxcbytes / td);
      fprintf(stderr, "Aggregate MBytes/s written: %0.3f\n",
	      (double)maxcbytes * mydollytab->hostnr / td);
    }
    if(flag_log) {
      if(mydollytab->flag_v) {
        fprintf(logfd, "Time: %lu.%03lu\n", td / 1000000, td % 1000000);
        fprintf(logfd, "MBytes/s: %0.3f\n", (double)maxbytes / td);
        fprintf(logfd, "Aggregate MBytes/s: %0.3f\n",
        (double)maxbytes * mydollytab->hostnr / td);
        if(maxcbytes != 0) {
          fprintf(logfd, "Bytes written on each node: %llu\n", maxcbytes);
          fprintf(logfd, "MBytes/s written: %0.3f\n",
            (double)maxcbytes / td);
          fprintf(logfd, "Aggregate MBytes/s written: %0.3f\n",
            (double)maxcbytes * mydollytab->hostnr / td);
        }
      } else {
        fprintf(logfd, "%4lu.%06lu  ", td / 1000000, td % 1000000);
        fprintf(logfd, "%4.6f  ", (double)maxbytes / td);
        fprintf(logfd, "%4.6f  ",
          (double)maxbytes * mydollytab->hostnr / td);
        if(maxcbytes != 0) {
          fprintf(logfd, "Bytes written on each node: %llu\n", maxcbytes);
          fprintf(logfd, "MBytes/s written: %0.3f\n",
            (double)maxcbytes / td);
          fprintf(logfd, "Aggregate MBytes/s written: %0.3f\n",
            (double)maxcbytes * mydollytab->hostnr / td);
        }
        fprintf(logfd, "\n");
      }
      fclose(logfd);
    }
  } else if(!mydollytab->melast) {
    /* All clients except the last just transfer 8 bytes in the backflow */
    unsigned long long ll;
    for(i = 0; i < mydollytab->nr_childs; i++) {
      movebytes(ctrlout[i], READ, (char *)&ll, 8,mydollytab);
    }
    movebytes(ctrlin, WRITE, (char *)&ll, 8,mydollytab);
  } else if(mydollytab->melast) {
    movebytes(ctrlin, WRITE, (char *)&maxbytes, 8,mydollytab);
  }
  if(mydollytab->flag_v) {
    fprintf(stderr, "Transmitted.\n");
  }
  free(buf_addr);
}
07070100000017000081A4000000000000000000000001623B5E1400000071000000000000000000000000000000000000001800000000dolly-0.64.2/transmit.h#ifndef TRANSMIT_H
#define TRANSMIT_H
#include "dollytab.h"
void transmit(struct dollytab * mydollytab);
#endif

07070100000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000B00000000TRAILER!!!283 blocks

Places

File dolly-0.64.2.obscpio of Package dolly

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