From 8887a920a4b81a500f54893250085e0d1a52cf9a Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 28 May 2011 17:14:30 -0400 Subject: Fix unnecessary overallocation due to incomplete character When incomplete characters are found at the end of a string the code ran amok and allocated lots of memory. Stricter limits are now in place. --- posix/bug-regex32.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 posix/bug-regex32.c (limited to 'posix/bug-regex32.c') diff --git a/posix/bug-regex32.c b/posix/bug-regex32.c new file mode 100644 index 0000000..525232c --- /dev/null +++ b/posix/bug-regex32.c @@ -0,0 +1,36 @@ +// BZ 12811 +#include +#include +#include + +static int +do_test (void) +{ + char buf[1000]; + regex_t preg; + if (setlocale (LC_CTYPE, "de_DE.UTF-8") == NULL) + { + puts ("setlocale failed"); + return 1; + } + + int e = regcomp (&preg, ".*ab", REG_ICASE); + if (e != 0) + { + regerror (e, &preg, buf, sizeof (buf)); + printf ("regcomp = %d \"%s\"\n", e, buf); + return 1; + } + + // Incomplete character at the end of the buffer + e = regexec (&preg, "aaaaaaaaaaaa\xc4", 0, NULL, 0); + + regfree (&preg); + regerror (e, &preg, buf, sizeof (buf)); + printf ("regexec = %d \"%s\"\n", e, buf); + + return e != REG_NOMATCH; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" -- cgit v1.1