forked from rpms/glibc
99 lines
3.3 KiB
Diff
99 lines
3.3 KiB
Diff
commit 9429049c178b3af3d6afeb3717ff1f2214dc9572
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Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
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Date: Mon Jun 28 09:15:55 2021 +0530
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iconvconfig: Fix multiple issues
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It was noticed on big-endian systems that msgfmt would fail with the
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following error:
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msgfmt: gconv_builtin.c:70: __gconv_get_builtin_trans: Assertion `cnt < sizeof (map) / sizeof (map[0])' failed.
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Aborted (core dumped)
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This is only seen on installed systems because it was due to a
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corrupted gconv-modules.cache. iconvconfig had the following issues
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(it was specifically freeing fulldir that caused this issue, but other
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cleanups are also needed) that this patch fixes.
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- Add prefix only if dir starts with '/'
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- Use asprintf instead of mempcpy so that the directory string is NULL
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terminated
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- Make a copy of the directory reference in new_module so that fulldir
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can be freed within the same scope in handle_dir.
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Reviewed-by: Florian Weimer <fweimer@redhat.com>
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diff --git a/iconv/Makefile b/iconv/Makefile
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index d09b8ac842731780..6df9862e748ae588 100644
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--- a/iconv/Makefile
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+++ b/iconv/Makefile
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@@ -33,7 +33,7 @@ vpath %.c ../locale/programs ../intl
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iconv_prog-modules = iconv_charmap charmap charmap-dir linereader \
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dummy-repertoire simple-hash xstrdup xmalloc \
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record-status
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-iconvconfig-modules = strtab xmalloc hash-string
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+iconvconfig-modules = strtab xmalloc xasprintf xstrdup hash-string
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extra-objs = $(iconv_prog-modules:=.o) $(iconvconfig-modules:=.o)
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CFLAGS-iconv_prog.c += -I../locale/programs
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CFLAGS-iconv_charmap.c += -I../locale/programs
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diff --git a/iconv/iconvconfig.c b/iconv/iconvconfig.c
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index 01ecf6f67d55dbbf..777da870d2f8e99a 100644
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--- a/iconv/iconvconfig.c
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+++ b/iconv/iconvconfig.c
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@@ -250,6 +250,7 @@ static const char gconv_module_ext[] = MODULE_EXT;
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#include <programs/xmalloc.h>
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+#include <programs/xasprintf.h>
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/* C string table handling. */
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@@ -519,11 +520,12 @@ module_compare (const void *p1, const void *p2)
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/* Create new module record. */
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static void
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new_module (const char *fromname, size_t fromlen, const char *toname,
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- size_t tolen, const char *directory,
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+ size_t tolen, const char *dir_in,
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const char *filename, size_t filelen, int cost, size_t need_ext)
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{
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struct module *new_module;
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- size_t dirlen = strlen (directory) + 1;
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+ size_t dirlen = strlen (dir_in) + 1;
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+ const char *directory = xstrdup (dir_in);
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char *tmp;
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void **inserted;
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@@ -654,20 +656,10 @@ handle_dir (const char *dir)
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size_t dirlen = strlen (dir);
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bool found = false;
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- /* Add the prefix before sending it off to the parser. */
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- char *fulldir = xmalloc (prefix_len + dirlen + 2);
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- char *cp = mempcpy (mempcpy (fulldir, prefix, prefix_len), dir, dirlen);
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+ char *fulldir = xasprintf ("%s%s%s", dir[0] == '/' ? prefix : "",
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+ dir, dir[dirlen - 1] != '/' ? "/" : "");
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- if (dir[dirlen - 1] != '/')
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- {
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- *cp++ = '/';
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- *cp = '\0';
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- dirlen++;
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- }
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-
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- found = gconv_parseconfdir (fulldir, dirlen + prefix_len);
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-
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- free (fulldir);
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+ found = gconv_parseconfdir (fulldir, strlen (fulldir));
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if (!found)
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{
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@@ -679,6 +671,8 @@ handle_dir (const char *dir)
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"configuration files with names ending in .conf.");
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}
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+ free (fulldir);
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+
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return found ? 0 : 1;
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}
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