diff options
Diffstat (limited to 'nametoaddr.c')
| -rw-r--r-- | nametoaddr.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/nametoaddr.c b/nametoaddr.c index 7c48bd3a3513..34a8b5593a64 100644 --- a/nametoaddr.c +++ b/nametoaddr.c @@ -653,8 +653,15 @@ __pcap_atoin(const char *s, bpf_u_int32 *addr) len = 0; for (;;) { n = 0; - while (*s && *s != '.') + while (*s && *s != '.') { + if (n > 25) { + /* The result will be > 255 */ + return -1; + } n = n * 10 + *s++ - '0'; + } + if (n > 255) + return -1; *addr <<= 8; *addr |= n & 0xff; len += 8; |