diff options
Diffstat (limited to 'lib/sockopt.c')
| -rw-r--r-- | lib/sockopt.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/lib/sockopt.c b/lib/sockopt.c index 0c4adb0b7c..74bc034ccd 100644 --- a/lib/sockopt.c +++ b/lib/sockopt.c @@ -10,13 +10,12 @@ #include "sockunion.h" #include "lib_errors.h" -#if (defined(__FreeBSD__) \ - && ((__FreeBSD_version >= 500022 && __FreeBSD_version < 700000) \ - || (__FreeBSD_version < 500000 && __FreeBSD_version >= 440000))) \ - || (defined(__NetBSD__) && defined(__NetBSD_Version__) \ - && __NetBSD_Version__ >= 106010000) \ - || defined(__OpenBSD__) || defined(__APPLE__) \ - || defined(__DragonFly__) || defined(__sun) +#if (defined(__FreeBSD__) && \ + ((__FreeBSD_version >= 500022 && __FreeBSD_version < 700000) || \ + (__FreeBSD_version < 500000 && __FreeBSD_version >= 440000))) || \ + (defined(__NetBSD__) && defined(__NetBSD_Version__) && \ + __NetBSD_Version__ >= 106010000) || \ + defined(__OpenBSD__) || defined(__DragonFly__) || defined(__sun) #define HAVE_BSD_STRUCT_IP_MREQ_HACK #endif @@ -24,9 +23,12 @@ void setsockopt_so_recvbuf(int sock, int size) { int orig_req = size; - while (setsockopt(sock, SOL_SOCKET, SO_RCVBUF, &size, sizeof(size)) - == -1) + while (setsockopt(sock, SOL_SOCKET, SO_RCVBUF, &size, sizeof(size)) == + -1) { + if (size == 0) + break; size /= 2; + } if (size != orig_req) flog_err(EC_LIB_SOCKET, @@ -38,9 +40,12 @@ void setsockopt_so_sendbuf(const int sock, int size) { int orig_req = size; - while (setsockopt(sock, SOL_SOCKET, SO_SNDBUF, &size, sizeof(size)) - == -1) + while (setsockopt(sock, SOL_SOCKET, SO_SNDBUF, &size, sizeof(size)) == + -1) { + if (size == 0) + break; size /= 2; + } if (size != orig_req) flog_err(EC_LIB_SOCKET, @@ -667,6 +672,9 @@ int sockopt_tcp_mss_get(int sock) int tcp_maxseg = 0; socklen_t tcp_maxseg_len = sizeof(tcp_maxseg); + if (sock < 0) + return 0; + ret = getsockopt(sock, IPPROTO_TCP, TCP_MAXSEG, &tcp_maxseg, &tcp_maxseg_len); if (ret != 0) { |