diff options
| -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; |
