diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2006-10-10 06:18:40 +0000 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2006-10-10 06:18:40 +0000 |
| commit | ed26b7b0cedcdb9621ae7d4e225048614f52dc0f (patch) | |
| tree | 7b7f68498d37bef33fc6ad83b8931af5af8dec0d /extensions/libipt_LOG.c | |
| parent | b34bef5f9ff4ee20cd46df1e26f6d6efe0bb5380 (diff) | |
iptables segfaults when given "" to --log-prefix (Mike Frysinger <vapier@gentoo.org>)
Bugzilla #516
Diffstat (limited to 'extensions/libipt_LOG.c')
| -rw-r--r-- | extensions/libipt_LOG.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/extensions/libipt_LOG.c b/extensions/libipt_LOG.c index 5e5d3fd8..96cc7010 100644 --- a/extensions/libipt_LOG.c +++ b/extensions/libipt_LOG.c @@ -143,6 +143,10 @@ parse(int c, char **argv, int invert, unsigned int *flags, "Maximum prefix length %u for --log-prefix", (unsigned int)sizeof(loginfo->prefix) - 1); + if (strlen(optarg) == 0) + exit_error(PARAMETER_PROBLEM, + "No prefix specified for --log-prefix"); + if (strlen(optarg) != strlen(strtok(optarg, "\n"))) exit_error(PARAMETER_PROBLEM, "Newlines not allowed in --log-prefix"); |