X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flibsystemd-network%2Fipv4ll-network.c;h=0852f42c3a8291cb11b88af894b7fce3099dba04;hb=eda8090ba9abc7d00f30e2b4cb34273cde799704;hp=b917fbf3acf9898151e56765efb1a744538df514;hpb=298f77c60c954a4e31229592ec95ee8e06ff1baa;p=elogind.git diff --git a/src/libsystemd-network/ipv4ll-network.c b/src/libsystemd-network/ipv4ll-network.c index b917fbf3a..0852f42c3 100644 --- a/src/libsystemd-network/ipv4ll-network.c +++ b/src/libsystemd-network/ipv4ll-network.c @@ -24,11 +24,14 @@ int arp_network_send_raw_socket(int fd, const union sockaddr_union *link, const struct ether_arp *arp) { + int r; + assert(arp); assert(link); assert(fd >= 0); - if (sendto(fd, arp, sizeof(struct ether_arp), 0, &link->sa, sizeof(link->ll)) < 0) + r = sendto(fd, arp, sizeof(struct ether_arp), 0, &link->sa, sizeof(link->ll)); + if (r < 0) return -errno; return 0; @@ -56,7 +59,8 @@ int arp_network_bind_raw_socket(int index, union sockaddr_union *link) { .len = ELEMENTSOF(filter), .filter = filter }; - int s; + _cleanup_close_ int s = -1; + int r; assert(index > 0); assert(link); @@ -65,9 +69,9 @@ int arp_network_bind_raw_socket(int index, union sockaddr_union *link) { if (s < 0) return -errno; - if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, &fprog, sizeof(fprog)) < 0) { + r = setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, &fprog, sizeof(fprog)); + if (r < 0) return -errno; - } link->ll.sll_family = AF_PACKET; link->ll.sll_protocol = htons(ETH_P_ARP); @@ -75,10 +79,12 @@ int arp_network_bind_raw_socket(int index, union sockaddr_union *link) { link->ll.sll_halen = ETH_ALEN; memset(link->ll.sll_addr, 0xff, ETH_ALEN); - if (bind(s, &link->sa, sizeof(link->ll)) < 0) { - safe_close(s); + r = bind(s, &link->sa, sizeof(link->ll)); + if (r < 0) return -errno; - } - return s; + r = s; + s = -1; + + return r; }