X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fnss-myhostname%2Fnetlink.c;h=d61ecdfd40f5e0e2d7e5b40b8d50023a647a131b;hb=0b6c04bb45c3947f32ae5116f8c2a485cd32b734;hp=2329f00943106586fb6243fb049e62ee1d13110e;hpb=d73c3269cd3c92bb26f5e161516c587f2874c8c5;p=elogind.git diff --git a/src/nss-myhostname/netlink.c b/src/nss-myhostname/netlink.c index 2329f0094..d61ecdfd4 100644 --- a/src/nss-myhostname/netlink.c +++ b/src/nss-myhostname/netlink.c @@ -31,12 +31,9 @@ #include #include #include -#include #include #include "ifconf.h" -#include "macro.h" -#include "util.h" #define SEQ 4711 @@ -172,28 +169,35 @@ int ifconf_acquire_addresses(struct address **_list, unsigned *_n_list) { int r, on = 1; struct address *list = NULL; unsigned n_list = 0; - int _cleanup_close_ fd; + int fd; fd = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE); if (fd < 0) return -errno; - if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on)) < 0) - return -errno; + if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on)) < 0) { + r = -errno; + goto finish; + } - if (send(fd, &req, req.hdr.nlmsg_len, 0) < 0) - return -errno; + if (send(fd, &req, req.hdr.nlmsg_len, 0) < 0) { + r = -errno; + goto finish; + } while((r = read_reply(fd, &list, &n_list)) == 0) ; +finish: + close(fd); + if (r < 0) { free(list); return r; } - assert(n_list == 0 || list); - qsort(list, n_list, sizeof(struct address), address_compare); + if (n_list) + qsort(list, n_list, sizeof(struct address), address_compare); *_list = list; *_n_list = n_list;