2013-02-12 Andreas Schwab <schwab@suse.de>
+ [BZ #15078]
+ * posix/regexec.c (extend_buffers): Add parameter min_len.
+ (check_matching): Pass minimum needed length.
+ (clean_state_log_if_needed): Likewise.
+ (get_subexp): Likewise.
+ * posix/Makefile (tests): Add bug-regex34.
+ (bug-regex34-ENV): Define.
+ * posix/bug-regex34.c: New file.
+
[BZ #11561]
* posix/regcomp.c (parse_bracket_exp): When looking up collating
elements compare against the byte sequence of it, not its name.
* The following bugs are resolved with this release:
11561, 13951, 14142, 14200, 14317, 14327, 14496, 14964, 14981, 14982,
- 14985, 14994, 14996, 15003, 15006, 15020, 15023, 15036, 15054, 15062.
+ 14985, 14994, 14996, 15003, 15006, 15020, 15023, 15036, 15054, 15062,
+ 15078.
\f
Version 2.17
tst-rfc3484-3 \
tst-getaddrinfo3 tst-fnmatch2 tst-cpucount tst-cpuset \
bug-getopt1 bug-getopt2 bug-getopt3 bug-getopt4 \
- bug-getopt5 tst-getopt_long1 bug-regex35
+ bug-getopt5 tst-getopt_long1 bug-regex34 bug-regex35
xtests := bug-ga2
ifeq (yes,$(build-shared))
test-srcs := globtest
bug-regex30-ENV = LOCPATH=$(common-objpfx)localedata
bug-regex32-ENV = LOCPATH=$(common-objpfx)localedata
bug-regex33-ENV = LOCPATH=$(common-objpfx)localedata
+bug-regex34-ENV = LOCPATH=$(common-objpfx)localedata
bug-regex35-ENV = LOCPATH=$(common-objpfx)localedata
tst-rxspencer-ARGS = --utf8 rxspencer/tests
tst-rxspencer-ENV = LOCPATH=$(common-objpfx)localedata
--- /dev/null
+/* Test re_search with multi-byte characters in UTF-8.
+ Copyright (C) 2013 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/>. */
+
+#define _GNU_SOURCE 1
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <regex.h>
+
+static int
+do_test (void)
+{
+ struct re_pattern_buffer r;
+ /* ကျွန်ုပ်x */
+ const char *s = "\xe1\x80\x80\xe1\x80\xbb\xe1\x80\xbd\xe1\x80\x94\xe1\x80\xba\xe1\x80\xaf\xe1\x80\x95\xe1\x80\xbax";
+
+ if (setlocale (LC_ALL, "en_US.UTF-8") == NULL)
+ {
+ puts ("setlocale failed");
+ return 1;
+ }
+ memset (&r, 0, sizeof (r));
+
+ re_compile_pattern ("[^x]x", 5, &r);
+ /* This was triggering a buffer overflow. */
+ re_search (&r, s, strlen (s), 0, strlen (s), 0);
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
static int check_node_accept (const re_match_context_t *mctx,
const re_token_t *node, int idx)
internal_function;
-static reg_errcode_t extend_buffers (re_match_context_t *mctx)
+static reg_errcode_t extend_buffers (re_match_context_t *mctx, int min_len)
internal_function;
\f
/* Entry point for POSIX code. */
|| (BE (next_char_idx >= mctx->input.valid_len, 0)
&& mctx->input.valid_len < mctx->input.len))
{
- err = extend_buffers (mctx);
+ err = extend_buffers (mctx, next_char_idx + 1);
if (BE (err != REG_NOERROR, 0))
{
assert (err == REG_ESPACE);
&& mctx->input.valid_len < mctx->input.len))
{
reg_errcode_t err;
- err = extend_buffers (mctx);
+ err = extend_buffers (mctx, next_state_log_idx + 1);
if (BE (err != REG_NOERROR, 0))
return err;
}
if (bkref_str_off >= mctx->input.len)
break;
- err = extend_buffers (mctx);
+ err = extend_buffers (mctx, bkref_str_off + 1);
if (BE (err != REG_NOERROR, 0))
return err;
static reg_errcode_t
internal_function __attribute_warn_unused_result__
-extend_buffers (re_match_context_t *mctx)
+extend_buffers (re_match_context_t *mctx, int min_len)
{
reg_errcode_t ret;
re_string_t *pstr = &mctx->input;
if (BE (INT_MAX / 2 / sizeof (re_dfastate_t *) <= pstr->bufs_len, 0))
return REG_ESPACE;
- /* Double the lengthes of the buffers. */
- ret = re_string_realloc_buffers (pstr, MIN (pstr->len, pstr->bufs_len * 2));
+ /* Double the lengthes of the buffers, but allocate at least MIN_LEN. */
+ ret = re_string_realloc_buffers (pstr,
+ MAX (min_len,
+ MIN (pstr->len, pstr->bufs_len * 2)));
if (BE (ret != REG_NOERROR, 0))
return ret;