diff options
Diffstat (limited to 'usr.sbin/rtsold/cap_llflags.c')
| -rw-r--r-- | usr.sbin/rtsold/cap_llflags.c | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/usr.sbin/rtsold/cap_llflags.c b/usr.sbin/rtsold/cap_llflags.c index b2c07df7379d..195f83893b4d 100644 --- a/usr.sbin/rtsold/cap_llflags.c +++ b/usr.sbin/rtsold/cap_llflags.c @@ -72,9 +72,12 @@ llflags_get(const char *ifname, int *flagsp) if (s < 0) return (-1); - if (getifaddrs(&ifap) != 0) - return (-1); - error = -1; + ifap = NULL; + if (getifaddrs(&ifap) != 0) { + error = errno; + goto out; + } + error = ENOENT; for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) { if (strcmp(ifa->ifa_name, ifname) != 0) continue; @@ -88,27 +91,29 @@ llflags_get(const char *ifname, int *flagsp) memset(&ifr6, 0, sizeof(ifr6)); if (strlcpy(ifr6.ifr_name, ifname, sizeof(ifr6.ifr_name)) >= sizeof(ifr6.ifr_name)) { - freeifaddrs(ifap); - errno = EINVAL; - return (-1); + error = errno; + goto out; } memcpy(&ifr6.ifr_ifru.ifru_addr, sin6, sin6->sin6_len); if (ioctl(s, SIOCGIFAFLAG_IN6, &ifr6) < 0) { error = errno; - freeifaddrs(ifap); - errno = error; - return (-1); + goto out; } *flagsp = ifr6.ifr_ifru.ifru_flags6; error = 0; break; } +out: (void)close(s); - freeifaddrs(ifap); - if (error == -1) - errno = ENOENT; - return (error); + if (ifap != NULL) + freeifaddrs(ifap); + if (error != 0) { + errno = error; + return (-1); + } else { + return (0); + } } int |