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| author | maxim <maxim@FreeBSD.org> | 2002-09-25 11:22:36 +0000 |
|---|---|---|
| committer | maxim <maxim@FreeBSD.org> | 2002-09-25 11:22:36 +0000 |
| commit | 1a47919de4c42db74ca895ddd0ccb59734cf95e1 (patch) | |
| tree | 737123b55739ad370320116977900527500d8e1e /sbin/ipfw | |
| parent | 84c5377d8238867452d66e9a75b9615659e85433 (diff) | |
| download | FreeBSD-src-1a47919de4c42db74ca895ddd0ccb59734cf95e1.zip FreeBSD-src-1a47919de4c42db74ca895ddd0ccb59734cf95e1.tar.gz | |
Do not dump core on 'ipfw add unreach': handling null strings in
fill_reject_code(). Please note ipfw/ipfw2.c is not affected.
PR: bin/42304
Submitted by: Andy@wantpackets.com
MFC after: 1 day
Diffstat (limited to 'sbin/ipfw')
| -rw-r--r-- | sbin/ipfw/ipfw.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sbin/ipfw/ipfw.c b/sbin/ipfw/ipfw.c index 9a87b09..c4f00fd 100644 --- a/sbin/ipfw/ipfw.c +++ b/sbin/ipfw/ipfw.c @@ -1063,6 +1063,8 @@ fill_reject_code(u_short *codep, char *str) u_long val; char *s; + if (str == '\0') + errx(EX_DATAERR, "missing unreachable code"); val = strtoul(str, &s, 0); if (s != str && *s == '\0' && val < 0x100) { *codep = val; |
