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_ULOG.c | |
| parent | b34bef5f9ff4ee20cd46df1e26f6d6efe0bb5380 (diff) | |
iptables segfaults when given "" to --log-prefix (Mike Frysinger <vapier@gentoo.org>)
Bugzilla #516
Diffstat (limited to 'extensions/libipt_ULOG.c')
| -rw-r--r-- | extensions/libipt_ULOG.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/extensions/libipt_ULOG.c b/extensions/libipt_ULOG.c index f4b7a14a..a73b685f 100644 --- a/extensions/libipt_ULOG.c +++ b/extensions/libipt_ULOG.c @@ -110,6 +110,14 @@ static int parse(int c, char **argv, int invert, unsigned int *flags, "Maximum prefix length %u for --ulog-prefix", (unsigned int)sizeof(loginfo->prefix) - 1); + if (strlen(optarg) == 0) + exit_error(PARAMETER_PROBLEM, + "No prefix specified for --ulog-prefix"); + + if (strlen(optarg) != strlen(strtok(optarg, "\n"))) + exit_error(PARAMETER_PROBLEM, + "Newlines not allowed in --ulog-prefix"); + strcpy(loginfo->prefix, optarg); *flags |= IPT_LOG_OPT_PREFIX; break; |