diff options
Diffstat (limited to 'dhcp.c')
| -rw-r--r-- | dhcp.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -271,10 +271,10 @@ int dhcp(struct ctx *c, struct ethhdr *eh, size_t len) if (len < sizeof(*eh) + sizeof(*iph)) return 0; - if (len < sizeof(*eh) + iph->ihl * 4 + sizeof(*uh)) + if (len < sizeof(*eh) + (long)iph->ihl * 4 + sizeof(*uh)) return 0; - uh = (struct udphdr *)((char *)iph + iph->ihl * 4); + uh = (struct udphdr *)((char *)iph + (long)(iph->ihl * 4)); m = (struct msg *)(uh + 1); if (uh->dest != htons(67)) @@ -283,7 +283,7 @@ int dhcp(struct ctx *c, struct ethhdr *eh, size_t len) if (c->no_dhcp) return 1; - mlen = len - sizeof(*eh) - iph->ihl * 4 - sizeof(*uh); + mlen = len - sizeof(*eh) - (long)iph->ihl * 4 - sizeof(*uh); if (mlen != ntohs(uh->len) - sizeof(*uh) || mlen < offsetof(struct msg, o) || m->op != BOOTREQUEST) @@ -349,7 +349,7 @@ int dhcp(struct ctx *c, struct ethhdr *eh, size_t len) iph->daddr = c->addr4; iph->saddr = c->gw4; iph->check = 0; - iph->check = csum_unaligned(iph, iph->ihl * 4, 0); + iph->check = csum_unaligned(iph, (intptr_t)(iph->ihl * 4), 0); len += sizeof(*eh); memcpy(eh->h_dest, eh->h_source, ETH_ALEN); |