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a20b0dc796
Fix memory leaks in "test-tool regex" which have been there since
c91841594c (test-regex: Add a test to check for a bug in the regex
routines, 2012-09-01), as a result we can mark a test as passing with
SANITIZE=leak using "TEST_PASSES_SANITIZE_LEAK=true".
We could regfree() on the die() paths here, which would make some
invocations of valgrind(1) happy, but let's just target SANITIZE=leak
for now. Variables that are still reachable when we die() are not
reported as leaks.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
117 lines
2.2 KiB
C
117 lines
2.2 KiB
C
#include "test-tool.h"
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#include "gettext.h"
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struct reg_flag {
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const char *name;
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int flag;
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};
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static struct reg_flag reg_flags[] = {
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{ "EXTENDED", REG_EXTENDED },
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{ "NEWLINE", REG_NEWLINE },
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{ "ICASE", REG_ICASE },
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{ "NOTBOL", REG_NOTBOL },
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{ "NOTEOL", REG_NOTEOL },
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#ifdef REG_STARTEND
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{ "STARTEND", REG_STARTEND },
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#endif
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{ NULL, 0 }
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};
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static int test_regex_bug(void)
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{
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char *pat = "[^={} \t]+";
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char *str = "={}\nfred";
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regex_t r;
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regmatch_t m[1];
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if (regcomp(&r, pat, REG_EXTENDED | REG_NEWLINE))
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die("failed regcomp() for pattern '%s'", pat);
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if (regexec(&r, str, 1, m, 0))
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die("no match of pattern '%s' to string '%s'", pat, str);
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/* http://sourceware.org/bugzilla/show_bug.cgi?id=3957 */
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if (m[0].rm_so == 3) /* matches '\n' when it should not */
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die("regex bug confirmed: re-build git with NO_REGEX=1");
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regfree(&r);
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return 0;
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}
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int cmd__regex(int argc, const char **argv)
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{
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const char *pat;
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const char *str;
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int ret, silent = 0, flags = 0;
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regex_t r;
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regmatch_t m[1];
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char errbuf[64];
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argv++;
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argc--;
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if (!argc)
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goto usage;
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if (!strcmp(*argv, "--bug")) {
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if (argc == 1)
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return test_regex_bug();
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else
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goto usage;
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}
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if (!strcmp(*argv, "--silent")) {
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silent = 1;
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argv++;
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argc--;
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}
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if (!argc)
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goto usage;
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pat = *argv++;
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if (argc == 1)
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str = NULL;
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else {
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str = *argv++;
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while (*argv) {
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struct reg_flag *rf;
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for (rf = reg_flags; rf->name; rf++)
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if (!strcmp(*argv, rf->name)) {
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flags |= rf->flag;
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break;
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}
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if (!rf->name)
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die("do not recognize flag %s", *argv);
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argv++;
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}
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}
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git_setup_gettext();
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ret = regcomp(&r, pat, flags);
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if (ret) {
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if (silent)
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return ret;
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regerror(ret, &r, errbuf, sizeof(errbuf));
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die("failed regcomp() for pattern '%s' (%s)", pat, errbuf);
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}
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if (!str)
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goto cleanup;
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ret = regexec(&r, str, 1, m, 0);
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if (ret) {
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if (silent || ret == REG_NOMATCH)
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goto cleanup;
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regerror(ret, &r, errbuf, sizeof(errbuf));
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die("failed regexec() for subject '%s' (%s)", str, errbuf);
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}
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cleanup:
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regfree(&r);
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return ret;
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usage:
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usage("\ttest-tool regex --bug\n"
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"\ttest-tool regex [--silent] <pattern>\n"
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"\ttest-tool regex [--silent] <pattern> <string> [<options>]");
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return -1;
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}
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