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glibc.22972
iconv-option-parsing.patch
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File iconv-option-parsing.patch of Package glibc.22972
From 70d585151c03ede999bd2ad5a724243914cb5f54 Mon Sep 17 00:00:00 2001 From: Arjun Shankar <arjun@redhat.com> Date: Tue, 7 Jul 2020 20:31:48 +0200 Subject: [PATCH] Rewrite iconv option parsing [BZ #19519] This commit replaces string manipulation during `iconv_open' and iconv_prog option parsing with a structured, flag based conversion specification. In doing so, it alters the internal `__gconv_open' interface and accordingly adjusts its uses. This change fixes several hangs in the iconv program and therefore includes a new test to exercise iconv_prog options that originally led to these hangs. It also includes a new regression test for option handling in the iconv function. Reviewed-by: Florian Weimer <fweimer@redhat.com> Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org> Reviewed-by: Carlos O'Donell <carlos@redhat.com> (cherry picked from commit 91927b7c76437db860cd86a7714476b56bb39d07) --- From 32965a46ce978f271ec6d3745f951da111c8e74a Mon Sep 17 00:00:00 2001 From: Arjun Shankar <arjun@redhat.com> Date: Fri, 25 Sep 2020 14:47:06 +0200 Subject: [PATCH] intl: Handle translation output codesets with suffixes [BZ #26383] Commit 91927b7c7643 (Rewrite iconv option parsing [BZ #19519]) did not handle cases where the output codeset for translations (via the `gettext' family of functions) might have a caller specified encoding suffix such as TRANSLIT or IGNORE. This led to a regression where translations did not work when the codeset had a suffix. This commit fixes the above issue by parsing any suffixes passed to __dcigettext and adds two new test-cases to intl/tst-codeset.c to verify correct behaviour. The iconv-internal function __gconv_create_spec and the static iconv-internal function gconv_destroy_spec are now visible internally within glibc and used in intl/dcigettext.c. (cherry picked from commit 7d4ec75e111291851620c6aa2c4460647b7fd50d) --- Index: glibc-2.26/iconv/Makefile =================================================================== --- glibc-2.26.orig/iconv/Makefile +++ glibc-2.26/iconv/Makefile @@ -26,7 +26,7 @@ headers = iconv.h gconv.h routines = iconv_open iconv iconv_close \ gconv_open gconv gconv_close gconv_db gconv_conf \ gconv_builtin gconv_simple gconv_trans gconv_cache -routines += gconv_dl +routines += gconv_dl gconv_charset vpath %.c ../locale/programs ../intl @@ -60,6 +60,7 @@ include $(patsubst %,$(..)libof-iterator ifeq ($(run-built-tests),yes) xtests-special += $(objpfx)test-iconvconfig.out +tests-special += $(objpfx)tst-iconv_prog.out endif include ../Rules @@ -78,3 +79,8 @@ $(objpfx)test-iconvconfig.out: /dev/null cmp $$tmp $(inst_gconvdir)/gconv-modules.cache; \ rm -f $$tmp) > $@; \ $(evaluate-test) + +$(objpfx)tst-iconv_prog.out: tst-iconv_prog.sh $(objpfx)iconv_prog + $(BASH) $< $(common-objdir) '$(test-wrapper-env)' \ + '$(run-program-env)' > $@; \ + $(evaluate-test) Index: glibc-2.26/iconv/Versions =================================================================== --- glibc-2.26.orig/iconv/Versions +++ glibc-2.26/iconv/Versions @@ -7,6 +7,9 @@ libc { # functions shared with iconv program __gconv_get_alias_db; __gconv_get_cache; __gconv_get_modules_db; + # functions used elsewhere in glibc + __gconv_open; __gconv_create_spec; __gconv_destroy_spec; + # function used by the gconv modules __gconv_transliterate; } Index: glibc-2.26/iconv/gconv_charset.c =================================================================== --- /dev/null +++ glibc-2.26/iconv/gconv_charset.c @@ -0,0 +1,228 @@ +/* Charset name normalization. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + + +#include <stdlib.h> +#include <ctype.h> +#include <locale.h> +#include <stdbool.h> +#include <string.h> +#include <sys/stat.h> +#include "gconv_int.h" +#include "gconv_charset.h" + + +/* This function returns a pointer to the last suffix in a conversion code + string. Valid suffixes matched by this function are of the form: '/' or ',' + followed by arbitrary text that doesn't contain '/' or ','. It does not + edit the string in any way. The caller is expected to parse the suffix and + remove it (by e.g. truncating the string) before the next call. */ +static char * +find_suffix (char *s) +{ + /* The conversion code is in the form of a triplet, separated by '/' chars. + The third component of the triplet contains suffixes. If we don't have two + slashes, we don't have a suffix. */ + + int slash_count = 0; + char *suffix_term = NULL; + + for (int i = 0; s[i] != '\0'; i++) + switch (s[i]) + { + case '/': + slash_count++; + /* Fallthrough */ + case ',': + suffix_term = &s[i]; + } + + if (slash_count >= 2) + return suffix_term; + + return NULL; +} + + +struct gconv_parsed_code +{ + char *code; + bool translit; + bool ignore; +}; + + +/* This function parses an iconv_open encoding PC.CODE, strips any suffixes + (such as TRANSLIT or IGNORE) from it and sets corresponding flags in it. */ +static void +gconv_parse_code (struct gconv_parsed_code *pc) +{ + pc->translit = false; + pc->ignore = false; + + while (1) + { + /* First drop any trailing whitespaces and separators. */ + size_t len = strlen (pc->code); + while ((len > 0) + && (isspace (pc->code[len - 1]) + || pc->code[len - 1] == ',' + || pc->code[len - 1] == '/')) + len--; + + pc->code[len] = '\0'; + + if (len == 0) + return; + + char * suffix = find_suffix (pc->code); + if (suffix == NULL) + { + /* At this point, we have processed and removed all suffixes from the + code and what remains of the code is suffix free. */ + return; + } + else + { + /* A suffix is processed from the end of the code array going + backwards, one suffix at a time. The suffix is an index into the + code character array and points to: one past the end of the code + and any unprocessed suffixes, and to the beginning of the suffix + currently being processed during this iteration. We must process + this suffix and then drop it from the code by terminating the + preceding text with NULL. + + We want to allow and recognize suffixes such as: + + "/TRANSLIT" i.e. single suffix + "//TRANSLIT" i.e. single suffix and multiple separators + "//TRANSLIT/IGNORE" i.e. suffixes separated by "/" + "/TRANSLIT//IGNORE" i.e. suffixes separated by "//" + "//IGNORE,TRANSLIT" i.e. suffixes separated by "," + "//IGNORE," i.e. trailing "," + "//TRANSLIT/" i.e. trailing "/" + "//TRANSLIT//" i.e. trailing "//" + "/" i.e. empty suffix. + + Unknown suffixes are silently discarded and ignored. */ + + if ((__strcasecmp_l (suffix, + GCONV_TRIPLE_SEPARATOR + GCONV_TRANSLIT_SUFFIX, + _nl_C_locobj_ptr) == 0) + || (__strcasecmp_l (suffix, + GCONV_SUFFIX_SEPARATOR + GCONV_TRANSLIT_SUFFIX, + _nl_C_locobj_ptr) == 0)) + pc->translit = true; + + if ((__strcasecmp_l (suffix, + GCONV_TRIPLE_SEPARATOR + GCONV_IGNORE_ERRORS_SUFFIX, + _nl_C_locobj_ptr) == 0) + || (__strcasecmp_l (suffix, + GCONV_SUFFIX_SEPARATOR + GCONV_IGNORE_ERRORS_SUFFIX, + _nl_C_locobj_ptr) == 0)) + pc->ignore = true; + + /* We just processed this suffix. We can now drop it from the + code string by truncating it at the suffix's position. */ + suffix[0] = '\0'; + } + } +} + + +/* This function accepts the charset names of the source and destination of the + conversion and populates *conv_spec with an equivalent conversion + specification that may later be used by __gconv_open. The charset names + might contain options in the form of suffixes that alter the conversion, + e.g. "ISO-10646/UTF-8/TRANSLIT". It processes the charset names, ignoring + and truncating any suffix options in fromcode, and processing and truncating + any suffix options in tocode. Supported suffix options ("TRANSLIT" or + "IGNORE") when found in tocode lead to the corresponding flag in *conv_spec + to be set to true. Unrecognized suffix options are silently discarded. If + the function succeeds, it returns conv_spec back to the caller. It returns + NULL upon failure. conv_spec must be allocated and freed by the caller. */ +struct gconv_spec * +__gconv_create_spec (struct gconv_spec *conv_spec, const char *fromcode, + const char *tocode) +{ + struct gconv_parsed_code pfc, ptc; + struct gconv_spec *ret = NULL; + + pfc.code = __strdup (fromcode); + ptc.code = __strdup (tocode); + + if ((pfc.code == NULL) + || (ptc.code == NULL)) + goto out; + + gconv_parse_code (&pfc); + gconv_parse_code (&ptc); + + /* We ignore suffixes in the fromcode because that is how the current + implementation has always handled them. Only suffixes in the tocode are + processed and handled. The reality is that invalid input in the input + character set should only be ignored if the fromcode specifies IGNORE. + The current implementation ignores invalid intput in the input character + set if the tocode contains IGNORE. We preserve this behavior for + backwards compatibility. In the future we may split the handling of + IGNORE to allow a finer grained specification of ignorning invalid input + and/or ignoring invalid output. */ + conv_spec->translit = ptc.translit; + conv_spec->ignore = ptc.ignore; + + /* 3 extra bytes because 1 extra for '\0', and 2 extra so strip might + be able to add one or two trailing '/' characters if necessary. */ + conv_spec->fromcode = malloc (strlen (fromcode) + 3); + if (conv_spec->fromcode == NULL) + goto out; + + conv_spec->tocode = malloc (strlen (tocode) + 3); + if (conv_spec->tocode == NULL) + { + free (conv_spec->fromcode); + conv_spec->fromcode = NULL; + goto out; + } + + /* Strip unrecognized characters and ensure that the code has two '/' + characters as per conversion code triplet specification. */ + strip (conv_spec->fromcode, pfc.code); + strip (conv_spec->tocode, ptc.code); + ret = conv_spec; + +out: + free (pfc.code); + free (ptc.code); + + return ret; +} +libc_hidden_def (__gconv_create_spec) + + +void +__gconv_destroy_spec (struct gconv_spec *conv_spec) +{ + free (conv_spec->fromcode); + free (conv_spec->tocode); + return; +} +libc_hidden_def (__gconv_destroy_spec) Index: glibc-2.26/iconv/gconv_charset.h =================================================================== --- glibc-2.26.orig/iconv/gconv_charset.h +++ glibc-2.26/iconv/gconv_charset.h @@ -19,9 +19,41 @@ #include <ctype.h> #include <locale.h> +#include <stdbool.h> +#include <string.h> +#include <sys/stat.h> +#include <stdlib.h> +#include "gconv_int.h" -static void +/* An iconv encoding is in the form of a triplet, with parts separated by + a '/' character. The first part is the standard name, the second part is + the character set, and the third part is the error handler. If the first + part is sufficient to identify both the standard and the character set + then the second part can be empty e.g. UTF-8//. If the first part is not + sufficient to identify both the standard and the character set then the + second part is required e.g. ISO-10646/UTF8/. If neither the first or + second parts are provided e.g. //, then the current locale is used. + The actual values used in the first and second parts are not entirely + relevant to the implementation. The values themselves are used in a hash + table to lookup modules and so the naming convention of the first two parts + is somewhat arbitrary and only helps locate the entries in the cache. + The third part is the error handler and is comprised of a ',' or '/' + separated list of suffixes. Currently, we support "TRANSLIT" for + transliteration and "IGNORE" for ignoring conversion errors due to + unrecognized input characters. */ +#define GCONV_TRIPLE_SEPARATOR "/" +#define GCONV_SUFFIX_SEPARATOR "," +#define GCONV_TRANSLIT_SUFFIX "TRANSLIT" +#define GCONV_IGNORE_ERRORS_SUFFIX "IGNORE" + + +/* This function copies in-order, characters from the source 's' that are + either alpha-numeric or one in one of these: "_-.,:/" - into the destination + 'wp' while dropping all other characters. In the process, it converts all + alphabetical characters to upper case. It then appends up to two '/' + characters so that the total number of '/'es in the destination is 2. */ +static inline void __attribute__ ((unused, always_inline)) strip (char *wp, const char *s) { int slash_count = 0; Index: glibc-2.26/iconv/gconv_int.h =================================================================== --- glibc-2.26.orig/iconv/gconv_int.h +++ glibc-2.26/iconv/gconv_int.h @@ -92,6 +92,15 @@ struct gconv_module }; +/* The specification of the conversion that needs to be performed. */ +struct gconv_spec +{ + char *fromcode; + char *tocode; + bool translit; + bool ignore; +}; + /* Flags for `gconv_open'. */ enum { @@ -154,10 +163,33 @@ __libc_lock_define (extern, __gconv_lock }) -/* Return in *HANDLE decriptor for transformation from FROMSET to TOSET. */ -extern int __gconv_open (const char *toset, const char *fromset, - __gconv_t *handle, int flags) - internal_function; +/* Return in *HANDLE, a decriptor for the transformation. The function expects + the specification of the transformation in the structure pointed to by + CONV_SPEC. It only reads *CONV_SPEC and does not take ownership of it. */ +extern int __gconv_open (struct gconv_spec *conv_spec, + __gconv_t *handle, int flags); +libc_hidden_proto (__gconv_open) + +/* This function accepts the charset names of the source and destination of the + conversion and populates *conv_spec with an equivalent conversion + specification that may later be used by __gconv_open. The charset names + might contain options in the form of suffixes that alter the conversion, + e.g. "ISO-10646/UTF-8/TRANSLIT". It processes the charset names, ignoring + and truncating any suffix options in fromcode, and processing and truncating + any suffix options in tocode. Supported suffix options ("TRANSLIT" or + "IGNORE") when found in tocode lead to the corresponding flag in *conv_spec + to be set to true. Unrecognized suffix options are silently discarded. If + the function succeeds, it returns conv_spec back to the caller. It returns + NULL upon failure. */ +extern struct gconv_spec * +__gconv_create_spec (struct gconv_spec *conv_spec, const char *fromcode, + const char *tocode); +libc_hidden_proto (__gconv_create_spec) + +/* This function frees all heap memory allocated by __gconv_create_spec. */ +extern void +__gconv_destroy_spec (struct gconv_spec *conv_spec); +libc_hidden_proto (__gconv_destroy_spec) /* Free resources associated with transformation descriptor CD. */ extern int __gconv_close (__gconv_t cd) Index: glibc-2.26/iconv/gconv_open.c =================================================================== --- glibc-2.26.orig/iconv/gconv_open.c +++ glibc-2.26/iconv/gconv_open.c @@ -27,8 +27,7 @@ int -internal_function -__gconv_open (const char *toset, const char *fromset, __gconv_t *handle, +__gconv_open (struct gconv_spec *conv_spec, __gconv_t *handle, int flags) { struct __gconv_step *steps; @@ -37,77 +36,38 @@ __gconv_open (const char *toset, const c size_t cnt = 0; int res; int conv_flags = 0; - const char *errhand; - const char *ignore; bool translit = false; + char *tocode, *fromcode; /* Find out whether any error handling method is specified. */ - errhand = strchr (toset, '/'); - if (errhand != NULL) - errhand = strchr (errhand + 1, '/'); - if (__glibc_likely (errhand != NULL)) - { - if (*++errhand == '\0') - errhand = NULL; - else - { - /* Make copy without the error handling description. */ - char *newtoset = (char *) alloca (errhand - toset + 1); - char *tok; - char *ptr = NULL /* Work around a bogus warning */; - - newtoset[errhand - toset] = '\0'; - toset = memcpy (newtoset, toset, errhand - toset); + translit = conv_spec->translit; - /* Find the appropriate transliteration handlers. */ - tok = strdupa (errhand); + if (conv_spec->ignore) + conv_flags |= __GCONV_IGNORE_ERRORS; - tok = __strtok_r (tok, ",", &ptr); - while (tok != NULL) - { - if (__strcasecmp_l (tok, "TRANSLIT", _nl_C_locobj_ptr) == 0) - translit = true; - else if (__strcasecmp_l (tok, "IGNORE", _nl_C_locobj_ptr) == 0) - /* Set the flag to ignore all errors. */ - conv_flags |= __GCONV_IGNORE_ERRORS; - - tok = __strtok_r (NULL, ",", &ptr); - } - } - } - - /* For the source character set we ignore the error handler specification. - XXX Is this really always the best? */ - ignore = strchr (fromset, '/'); - if (ignore != NULL && (ignore = strchr (ignore + 1, '/')) != NULL - && *++ignore != '\0') - { - char *newfromset = (char *) alloca (ignore - fromset + 1); - - newfromset[ignore - fromset] = '\0'; - fromset = memcpy (newfromset, fromset, ignore - fromset); - } + tocode = conv_spec->tocode; + fromcode = conv_spec->fromcode; /* If the string is empty define this to mean the charset of the currently selected locale. */ - if (strcmp (toset, "//") == 0) + if (strcmp (tocode, "//") == 0) { const char *codeset = _NL_CURRENT (LC_CTYPE, CODESET); size_t len = strlen (codeset); char *dest; - toset = dest = (char *) alloca (len + 3); + tocode = dest = (char *) alloca (len + 3); memcpy (__mempcpy (dest, codeset, len), "//", 3); } - if (strcmp (fromset, "//") == 0) + if (strcmp (fromcode, "//") == 0) { const char *codeset = _NL_CURRENT (LC_CTYPE, CODESET); size_t len = strlen (codeset); char *dest; - fromset = dest = (char *) alloca (len + 3); + fromcode = dest = (char *) alloca (len + 3); memcpy (__mempcpy (dest, codeset, len), "//", 3); } - res = __gconv_find_transform (toset, fromset, &steps, &nsteps, flags); + res = __gconv_find_transform (tocode, fromcode, &steps, &nsteps, flags); if (res == __GCONV_OK) { /* Allocate room for handle. */ @@ -206,3 +166,4 @@ __gconv_open (const char *toset, const c *handle = result; return res; } +libc_hidden_def (__gconv_open) Index: glibc-2.26/iconv/iconv_open.c =================================================================== --- glibc-2.26.orig/iconv/iconv_open.c +++ glibc-2.26/iconv/iconv_open.c @@ -31,49 +31,15 @@ iconv_t iconv_open (const char *tocode, const char *fromcode) { - /* Normalize the name. We remove all characters beside alpha-numeric, - '_', '-', '/', '.', and ':'. */ - size_t tocode_len = strlen (tocode) + 3; - char *tocode_conv; - bool tocode_usealloca = __libc_use_alloca (tocode_len); - if (tocode_usealloca) - tocode_conv = (char *) alloca (tocode_len); - else - { - tocode_conv = (char *) malloc (tocode_len); - if (tocode_conv == NULL) - return (iconv_t) -1; - } - strip (tocode_conv, tocode); - tocode = (tocode_conv[2] == '\0' && tocode[0] != '\0' - ? upstr (tocode_conv, tocode) : tocode_conv); + __gconv_t cd; + struct gconv_spec conv_spec; - size_t fromcode_len = strlen (fromcode) + 3; - char *fromcode_conv; - bool fromcode_usealloca = __libc_use_alloca (fromcode_len); - if (fromcode_usealloca) - fromcode_conv = (char *) alloca (fromcode_len); - else - { - fromcode_conv = (char *) malloc (fromcode_len); - if (fromcode_conv == NULL) - { - if (! tocode_usealloca) - free (tocode_conv); - return (iconv_t) -1; - } - } - strip (fromcode_conv, fromcode); - fromcode = (fromcode_conv[2] == '\0' && fromcode[0] != '\0' - ? upstr (fromcode_conv, fromcode) : fromcode_conv); + if (__gconv_create_spec (&conv_spec, fromcode, tocode) == NULL) + return (iconv_t) -1; - __gconv_t cd; - int res = __gconv_open (tocode, fromcode, &cd, 0); + int res = __gconv_open (&conv_spec, &cd, 0); - if (! fromcode_usealloca) - free (fromcode_conv); - if (! tocode_usealloca) - free (tocode_conv); + __gconv_destroy_spec (&conv_spec); if (__builtin_expect (res, __GCONV_OK) != __GCONV_OK) { Index: glibc-2.26/iconv/iconv_prog.c =================================================================== --- glibc-2.26.orig/iconv/iconv_prog.c +++ glibc-2.26/iconv/iconv_prog.c @@ -39,6 +39,7 @@ #include <gconv_int.h> #include "iconv_prog.h" #include "iconvconfig.h" +#include "gconv_charset.h" /* Get libc version number. */ #include "../version.h" @@ -121,8 +122,7 @@ main (int argc, char *argv[]) { int status = EXIT_SUCCESS; int remaining; - iconv_t cd; - const char *orig_to_code; + __gconv_t cd; struct charmap_t *from_charmap = NULL; struct charmap_t *to_charmap = NULL; @@ -142,39 +142,6 @@ main (int argc, char *argv[]) exit (EXIT_SUCCESS); } - /* If we have to ignore errors make sure we use the appropriate name for - the to-character-set. */ - orig_to_code = to_code; - if (omit_invalid) - { - const char *errhand = strchrnul (to_code, '/'); - int nslash = 2; - char *newp; - char *cp; - - if (*errhand == '/') - { - --nslash; - errhand = strchrnul (errhand + 1, '/'); - - if (*errhand == '/') - { - --nslash; - errhand = strchr (errhand, '\0'); - } - } - - newp = (char *) alloca (errhand - to_code + nslash + 7 + 1); - cp = mempcpy (newp, to_code, errhand - to_code); - while (nslash-- > 0) - *cp++ = '/'; - if (cp[-1] != '/') - *cp++ = ','; - memcpy (cp, "IGNORE", sizeof ("IGNORE")); - - to_code = newp; - } - /* POSIX 1003.2b introduces a silly thing: the arguments to -t anf -f can be file names of charmaps. In this case iconv will have to read those charmaps and use them to do the conversion. But there are @@ -187,10 +154,10 @@ main (int argc, char *argv[]) file. */ from_charmap = charmap_read (from_code, /*0, 1*/1, 0, 0, 0); - if (strchr (orig_to_code, '/') != NULL) + if (strchr (to_code, '/') != NULL) /* The to-name might be a charmap file name. Try reading the file. */ - to_charmap = charmap_read (orig_to_code, /*0, 1,*/1, 0, 0, 0); + to_charmap = charmap_read (to_code, /*0, 1,*/1, 0, 0, 0); /* At this point we have to handle two cases. The first one is @@ -204,9 +171,25 @@ main (int argc, char *argv[]) argc, remaining, argv, output_file); else { + struct gconv_spec conv_spec; + int res; + + if (__gconv_create_spec (&conv_spec, from_code, to_code) == NULL) + { + error (EXIT_FAILURE, errno, + _("failed to start conversion processing")); + exit (1); + } + + if (omit_invalid) + conv_spec.ignore = true; + /* Let's see whether we have these coded character sets. */ - cd = iconv_open (to_code, from_code); - if (cd == (iconv_t) -1) + res = __gconv_open (&conv_spec, &cd, 0); + + __gconv_destroy_spec (&conv_spec); + + if (res != __GCONV_OK) { if (errno == EINVAL) { @@ -224,7 +207,7 @@ main (int argc, char *argv[]) const char *from_pretty = (from_code[0] ? from_code : nl_langinfo (CODESET)); const char *to_pretty = - (orig_to_code[0] ? orig_to_code : nl_langinfo (CODESET)); + (to_code[0] ? to_code : nl_langinfo (CODESET)); if (from_wrong) { Index: glibc-2.26/iconv/tst-iconv_prog.sh =================================================================== --- /dev/null +++ glibc-2.26/iconv/tst-iconv_prog.sh @@ -0,0 +1,280 @@ +#!/bin/bash +# Test for some known iconv(1) hangs from bug 19519, and miscellaneous +# iconv(1) program error conditions. +# Copyright (C) 2020 Free Software Foundation, Inc. +# This file is part of the GNU C Library. + +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. + +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. + +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library; if not, see +# <https://www.gnu.org/licenses/>. + +codir=$1 +test_wrapper_env="$2" +run_program_env="$3" + +# We have to have some directories in the library path. +LIBPATH=$codir:$codir/iconvdata + +# How the start the iconv(1) program. $from is not defined/expanded yet. +ICONV=' +$codir/elf/ld.so --library-path $LIBPATH --inhibit-rpath ${from}.so +$codir/iconv/iconv_prog +' +ICONV="$test_wrapper_env $run_program_env $ICONV" + +# List of known hangs; +# Gathered by running an exhaustive 2 byte input search against glibc-2.28 +hangarray=( +"\x00\x23;-c;ANSI_X3.110;UTF-8//TRANSLIT//IGNORE" +"\x00\xa1;-c;ARMSCII-8;UTF-8//TRANSLIT//IGNORE" +"\x00\xa1;-c;ASMO_449;UTF-8//TRANSLIT//IGNORE" +"\x00\x81;-c;BIG5;UTF-8//TRANSLIT//IGNORE" +"\x00\xff;-c;BIG5HKSCS;UTF-8//TRANSLIT//IGNORE" +"\x00\xff;-c;BRF;UTF-8//TRANSLIT//IGNORE" +"\x00\xff;-c;BS_4730;UTF-8//TRANSLIT//IGNORE" +"\x00\x81;-c;CP1250;UTF-8//TRANSLIT//IGNORE" +"\x00\x98;-c;CP1251;UTF-8//TRANSLIT//IGNORE" +"\x00\x81;-c;CP1252;UTF-8//TRANSLIT//IGNORE" +"\x00\x81;-c;CP1253;UTF-8//TRANSLIT//IGNORE" +"\x00\x81;-c;CP1254;UTF-8//TRANSLIT//IGNORE" +"\x00\x81;-c;CP1255;UTF-8//TRANSLIT//IGNORE" +"\x00\x81;-c;CP1257;UTF-8//TRANSLIT//IGNORE" +"\x00\x81;-c;CP1258;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;CP932;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;CSA_Z243.4-1985-1;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;CSA_Z243.4-1985-2;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;DEC-MCS;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;DIN_66003;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;DS_2089;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-AT-DE;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-AT-DE-A;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-CA-FR;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-DK-NO;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-DK-NO-A;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-ES;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-ES-A;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-ES-S;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-FI-SE;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-FI-SE-A;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-FR;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-IS-FRISS;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-IT;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-PT;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-UK;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;EBCDIC-US;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ES;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ES2;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;EUC-CN;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;EUC-JISX0213;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;EUC-JP;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;EUC-JP-MS;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;EUC-KR;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;EUC-TW;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;GB18030;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;GB_1988-80;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;GBK;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;GOST_19768-74;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;GREEK7;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;GREEK7-OLD;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;GREEK-CCITT;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;HP-GREEK8;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;HP-ROMAN8;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;HP-ROMAN9;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;HP-THAI8;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;HP-TURKISH8;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM038;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;IBM1004;UTF-8//TRANSLIT//IGNORE" +"\x00\xff;-c;IBM1008;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;IBM1046;UTF-8//TRANSLIT//IGNORE" +"\x00\x51;-c;IBM1132;UTF-8//TRANSLIT//IGNORE" +"\x00\xa0;-c;IBM1133;UTF-8//TRANSLIT//IGNORE" +"\x00\xce;-c;IBM1137;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;IBM1161;UTF-8//TRANSLIT//IGNORE" +"\x00\xdb;-c;IBM1162;UTF-8//TRANSLIT//IGNORE" +"\x00\x70;-c;IBM12712;UTF-8//TRANSLIT//IGNORE" +# These are known hangs that are yet to be fixed: +# "\x00\x0f;-c;IBM1364;UTF-8" +# "\x00\x0f;-c;IBM1371;UTF-8" +# "\x00\x0f;-c;IBM1388;UTF-8" +# "\x00\x0f;-c;IBM1390;UTF-8" +# "\x00\x0f;-c;IBM1399;UTF-8" +"\x00\x53;-c;IBM16804;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM274;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM275;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM281;UTF-8//TRANSLIT//IGNORE" +"\x00\x57;-c;IBM290;UTF-8//TRANSLIT//IGNORE" +"\x00\x45;-c;IBM420;UTF-8//TRANSLIT//IGNORE" +"\x00\x68;-c;IBM423;UTF-8//TRANSLIT//IGNORE" +"\x00\x70;-c;IBM424;UTF-8//TRANSLIT//IGNORE" +"\x00\x53;-c;IBM4517;UTF-8//TRANSLIT//IGNORE" +"\x00\x53;-c;IBM4899;UTF-8//TRANSLIT//IGNORE" +"\x00\xa5;-c;IBM4909;UTF-8//TRANSLIT//IGNORE" +"\x00\xdc;-c;IBM4971;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM803;UTF-8//TRANSLIT//IGNORE" +"\x00\x91;-c;IBM851;UTF-8//TRANSLIT//IGNORE" +"\x00\x9b;-c;IBM856;UTF-8//TRANSLIT//IGNORE" +"\x00\xd5;-c;IBM857;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;IBM864;UTF-8//TRANSLIT//IGNORE" +"\x00\x94;-c;IBM868;UTF-8//TRANSLIT//IGNORE" +"\x00\x94;-c;IBM869;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;IBM874;UTF-8//TRANSLIT//IGNORE" +"\x00\x6a;-c;IBM875;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM880;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;IBM891;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;IBM903;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;IBM904;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM905;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;IBM9066;UTF-8//TRANSLIT//IGNORE" +"\x00\x48;-c;IBM918;UTF-8//TRANSLIT//IGNORE" +"\x00\x57;-c;IBM930;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;IBM932;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM933;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM935;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM937;UTF-8//TRANSLIT//IGNORE" +"\x00\x41;-c;IBM939;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;IBM943;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;INIS;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;INIS-8;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;INIS-CYRILLIC;UTF-8//TRANSLIT//IGNORE" +"\x00\xec;-c;ISIRI-3342;UTF-8//TRANSLIT//IGNORE" +"\x00\xec;-c;ISO_10367-BOX;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO-2022-CN;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO-2022-CN-EXT;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO-2022-JP;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO-2022-JP-2;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO-2022-JP-3;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO-2022-KR;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO_2033;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO_5427;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO_5427-EXT;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO_5428;UTF-8//TRANSLIT//IGNORE" +"\x00\xa4;-c;ISO_6937;UTF-8//TRANSLIT//IGNORE" +"\x00\xa0;-c;ISO_6937-2;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO-8859-11;UTF-8//TRANSLIT//IGNORE" +"\x00\xa5;-c;ISO-8859-3;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO-8859-6;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO-8859-7;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;ISO-8859-8;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;ISO-IR-197;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;ISO-IR-209;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;IT;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;JIS_C6220-1969-RO;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;JIS_C6229-1984-B;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;JOHAB;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;JUS_I.B1.002;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;KOI-8;UTF-8//TRANSLIT//IGNORE" +"\x00\x88;-c;KOI8-T;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;KSC5636;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;LATIN-GREEK;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;LATIN-GREEK-1;UTF-8//TRANSLIT//IGNORE" +"\x00\xf6;-c;MAC-IS;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;MSZ_7795.3;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;NATS-DANO;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;NATS-SEFI;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;NC_NC00-10;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;NF_Z_62-010;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;NF_Z_62-010_1973;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;NS_4551-1;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;NS_4551-2;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;PT;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;PT2;UTF-8//TRANSLIT//IGNORE" +"\x00\x98;-c;RK1048;UTF-8//TRANSLIT//IGNORE" +"\x00\x98;-c;SEN_850200_B;UTF-8//TRANSLIT//IGNORE" +"\x00\x98;-c;SEN_850200_C;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;Shift_JISX0213;UTF-8//TRANSLIT//IGNORE" +"\x00\x80;-c;SJIS;UTF-8//TRANSLIT//IGNORE" +"\x00\x23;-c;T.61-8BIT;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;TIS-620;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;TSCII;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;UHC;UTF-8//TRANSLIT//IGNORE" +"\x00\xd8;-c;UNICODE;UTF-8//TRANSLIT//IGNORE" +"\x00\xdc;-c;UTF-16;UTF-8//TRANSLIT//IGNORE" +"\xdc\x00;-c;UTF-16BE;UTF-8//TRANSLIT//IGNORE" +"\x00\xdc;-c;UTF-16LE;UTF-8//TRANSLIT//IGNORE" +"\xff\xff;-c;UTF-7;UTF-8//TRANSLIT//IGNORE" +"\x00\x81;-c;WIN-SAMI-2;UTF-8//TRANSLIT//IGNORE" +) + +# List of option combinations that *should* lead to an error +errorarray=( +# Converting from/to invalid character sets should cause error +"\x00\x00;;INVALID;INVALID" +"\x00\x00;;INVALID;UTF-8" +"\x00\x00;;UTF-8;INVALID" +) + +# Requires $twobyte input, $c flag, $from, and $to to be set; sets $ret +execute_test () +{ + eval PROG=\"$ICONV\" + echo -en "$twobyte" \ + | timeout -k 4 3 $PROG $c -f $from -t "$to" &>/dev/null + ret=$? +} + +check_hangtest_result () +{ + if [ "$ret" -eq "124" ] || [ "$ret" -eq "137" ]; then # timeout/hang + result="HANG" + else + if [ "$ret" -eq "139" ]; then # segfault + result="SEGFAULT" + else + if [ "$ret" -gt "127" ]; then # unexpected error + result="UNEXPECTED" + else + result="OK" + fi + fi + fi + + echo -n "$result: from: \"$from\", to: \"$to\"," + echo " input \"$twobyte\", flags \"$c\"" + + if [ "$result" != "OK" ]; then + exit 1 + fi +} + +for hangcommand in "${hangarray[@]}"; do + twobyte="$(echo "$hangcommand" | cut -d";" -f 1)" + c="$(echo "$hangcommand" | cut -d";" -f 2)" + from="$(echo "$hangcommand" | cut -d";" -f 3)" + to="$(echo "$hangcommand" | cut -d";" -f 4)" + execute_test + check_hangtest_result +done + +check_errtest_result () +{ + if [ "$ret" -eq "1" ]; then # we errored out as expected + result="PASS" + else + result="FAIL" + fi + echo -n "$result: from: \"$from\", to: \"$to\"," + echo " input \"$twobyte\", flags \"$c\", return code $ret" + + if [ "$result" != "PASS" ]; then + exit 1 + fi +} + +for errorcommand in "${errorarray[@]}"; do + twobyte="$(echo "$errorcommand" | cut -d";" -f 1)" + c="$(echo "$errorcommand" | cut -d";" -f 2)" + from="$(echo "$errorcommand" | cut -d";" -f 3)" + to="$(echo "$errorcommand" | cut -d";" -f 4)" + execute_test + check_errtest_result +done Index: glibc-2.26/intl/dcigettext.c =================================================================== --- glibc-2.26.orig/intl/dcigettext.c +++ glibc-2.26/intl/dcigettext.c @@ -1126,11 +1126,19 @@ _nl_find_msg (struct loaded_l10nfile *do outcharset = encoding; # ifdef _LIBC + + struct gconv_spec conv_spec; + + __gconv_create_spec (&conv_spec, charset, outcharset); + /* We always want to use transliteration. */ - outcharset = norm_add_slashes (outcharset, "TRANSLIT"); - charset = norm_add_slashes (charset, ""); - int r = __gconv_open (outcharset, charset, &convd->conv, - GCONV_AVOID_NOCONV); + conv_spec.translit = true; + + int r = __gconv_open (&conv_spec, &convd->conv, + GCONV_AVOID_NOCONV); + + __gconv_destroy_spec (&conv_spec); + if (__builtin_expect (r != __GCONV_OK, 0)) { /* If the output encoding is the same there is
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