diff options
Diffstat (limited to 'src/network/dns_parse.c')
| -rw-r--r-- | src/network/dns_parse.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/network/dns_parse.c b/src/network/dns_parse.c index 7f83e791..09813112 100644 --- a/src/network/dns_parse.c +++ b/src/network/dns_parse.c @@ -12,16 +12,15 @@ int __dns_parse(const unsigned char *r, int rlen, int (*callback)(void *, int, c p = r+12; qdcount = r[4]*256 + r[5]; ancount = r[6]*256 + r[7]; - if (qdcount+ancount > 64) return -1; while (qdcount--) { while (p-r < rlen && *p-1U < 127) p++; - if (p>r+rlen-6 || *p>193 || (*p==193 && p[1]>254)) + if (p>r+rlen-6) return -1; p += 5 + !!*p; } while (ancount--) { while (p-r < rlen && *p-1U < 127) p++; - if (p>r+rlen-12 || *p>193 || (*p==193 && p[1]>254)) + if (p>r+rlen-12) return -1; p += 1 + !!*p; len = p[8]*256 + p[9]; |