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authorUlrich Drepper <drepper@redhat.com>2005-05-06 23:34:44 +0000
committerUlrich Drepper <drepper@redhat.com>2005-05-06 23:34:44 +0000
commit7b9189934509bd343dc77ef49d40620f327b6708 (patch)
tree1d8619a817904d9339d04cca9761c4059e3cba9b /posix/regexec.c
parente699dda3ae84df08ab8ff073e1d056a2d03cfdd7 (diff)
downloadglibc-7b9189934509bd343dc77ef49d40620f327b6708.tar.gz
[BZ #934]
2005-05-06 Jakub Jelinek <jakub@redhat.com> [BZ #934] * posix/regex_internal.h: Include bits/libc-lock.h or define dummy __libc_lock_* macros if not _LIBC. (struct re_dfa_t): Add lock. * posix/regcomp.c (re_compile_internal): Add __libc_lock_init. * posix/regexec.c (regexec, re_search_stub): Add locking.
Diffstat (limited to 'posix/regexec.c')
-rw-r--r--posix/regexec.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/posix/regexec.c b/posix/regexec.c
index 3c226e3c20..e635261d05 100644
--- a/posix/regexec.c
+++ b/posix/regexec.c
@@ -219,6 +219,7 @@ regexec (preg, string, nmatch, pmatch, eflags)
{
reg_errcode_t err;
int start, length;
+ re_dfa_t *dfa = (re_dfa_t *)preg->buffer;
if (eflags & ~(REG_NOTBOL | REG_NOTEOL | REG_STARTEND))
return REG_BADPAT;
@@ -233,12 +234,15 @@ regexec (preg, string, nmatch, pmatch, eflags)
start = 0;
length = strlen (string);
}
+
+ __libc_lock_lock (dfa->lock);
if (preg->no_sub)
err = re_search_internal (preg, string, length, start, length - start,
length, 0, NULL, eflags);
else
err = re_search_internal (preg, string, length, start, length - start,
length, nmatch, pmatch, eflags);
+ __libc_lock_unlock (dfa->lock);
return err != REG_NOERROR;
}
@@ -402,6 +406,7 @@ re_search_stub (bufp, string, length, start, range, stop, regs, ret_len)
regmatch_t *pmatch;
int nregs, rval;
int eflags = 0;
+ re_dfa_t *dfa = (re_dfa_t *)bufp->buffer;
/* Check for out-of-range. */
if (BE (start < 0 || start > length, 0))
@@ -411,6 +416,8 @@ re_search_stub (bufp, string, length, start, range, stop, regs, ret_len)
else if (BE (start + range < 0, 0))
range = -start;
+ __libc_lock_lock (dfa->lock);
+
eflags |= (bufp->not_bol) ? REG_NOTBOL : 0;
eflags |= (bufp->not_eol) ? REG_NOTEOL : 0;
@@ -439,7 +446,10 @@ re_search_stub (bufp, string, length, start, range, stop, regs, ret_len)
nregs = bufp->re_nsub + 1;
pmatch = re_malloc (regmatch_t, nregs);
if (BE (pmatch == NULL, 0))
- return -2;
+ {
+ rval = -2;
+ goto out;
+ }
result = re_search_internal (bufp, string, length, start, range, stop,
nregs, pmatch, eflags);
@@ -469,6 +479,8 @@ re_search_stub (bufp, string, length, start, range, stop, regs, ret_len)
rval = pmatch[0].rm_so;
}
re_free (pmatch);
+ out:
+ __libc_lock_unlock (dfa->lock);
return rval;
}