From e00b44cb98e4d50a0d426048ba01dbd80bcb5941 Mon Sep 17 00:00:00 2001 From: Guus Sliepen Date: Sun, 25 Oct 2009 01:40:07 +0200 Subject: [PATCH] Move socket error interpretation to utils.h. --- lib/utils.h | 11 +++++++++++ src/meta.c | 10 ++++------ src/net.c | 7 +++---- src/net_packet.c | 18 +++--------------- src/net_socket.c | 42 +++++++++++++----------------------------- 5 files changed, 34 insertions(+), 54 deletions(-) diff --git a/lib/utils.h b/lib/utils.h index c6fb1807..4456616d 100644 --- a/lib/utils.h +++ b/lib/utils.h @@ -27,6 +27,17 @@ extern void bin2hex(char *src, char *dst, int length); #ifdef HAVE_MINGW extern const char *winerror(int); #define strerror(x) ((x)>0?strerror(x):winerror(GetLastError())) +#define sockerrno WSAGetLastError() +#define sockstrerror(x) winerror(x) +#define sockwouldblock(x) ((x) == WSAEWOULDBLOCK || (x) == WSAEINTR) +#define sockmsgsize(x) ((x) == WSAEMSGSIZE) +#define sockinprogress(x) ((x) == WSAEINPROGRESS || (x) == WSAEWOULDBLOCK) +#else +#define sockerrno errno +#define sockstrerror(x) strerror(x) +#define sockwouldblock(x) ((x) == EWOULDBLOCK || (x) == EINTR) +#define sockmsgsize(x) ((x) == EMSGSIZE) +#define sockinprogress(x) ((x) == EINPROGRESS) #endif extern unsigned int bitfield_to_int(void *bitfield, size_t size); diff --git a/src/meta.c b/src/meta.c index 21400f29..4c52464c 100644 --- a/src/meta.c +++ b/src/meta.c @@ -94,15 +94,13 @@ bool flush_meta(connection_t *c) { c->name, c->hostname); } else if(errno == EINTR) { continue; -#ifdef EWOULDBLOCK - } else if(errno == EWOULDBLOCK) { + } else if(sockwouldblock(sockerrno)) { ifdebug(CONNECTIONS) logger(LOG_DEBUG, "Flushing %d bytes to %s (%s) would block", c->outbuflen, c->name, c->hostname); return true; -#endif } else { logger(LOG_ERR, "Flushing meta data to %s (%s) failed: %s", c->name, - c->hostname, strerror(errno)); + c->hostname, sockstrerror(sockerrno)); } return false; @@ -149,11 +147,11 @@ bool receive_meta(connection_t *c) { if(!lenin || !errno) { ifdebug(CONNECTIONS) logger(LOG_NOTICE, "Connection closed by %s (%s)", c->name, c->hostname); - } else if(errno == EINTR) + } else if(sockwouldblock(sockerrno)) return true; else logger(LOG_ERR, "Metadata socket read error for %s (%s): %s", - c->name, c->hostname, strerror(errno)); + c->name, c->hostname, sockstrerror(sockerrno)); return false; } diff --git a/src/net.c b/src/net.c index 59dd39b3..3f17083c 100644 --- a/src/net.c +++ b/src/net.c @@ -303,7 +303,7 @@ static void check_network_activity(fd_set * readset, fd_set * writeset) { else { ifdebug(CONNECTIONS) logger(LOG_DEBUG, "Error while connecting to %s (%s): %s", - c->name, c->hostname, strerror(result)); + c->name, c->hostname, sockstrerror(result)); closesocket(c->socket); do_outgoing_connection(c); continue; @@ -369,9 +369,8 @@ int main_loop(void) { #endif if(r < 0) { - if(errno != EINTR && errno != EAGAIN) { - logger(LOG_ERR, "Error while waiting for input: %s", - strerror(errno)); + if(!sockwouldblock(sockerrno)) { + logger(LOG_ERR, "Error while waiting for input: %s", sockstrerror(sockerrno)); dump_connections(); return 1; } diff --git a/src/net_packet.c b/src/net_packet.c index 32436702..e5011532 100644 --- a/src/net_packet.c +++ b/src/net_packet.c @@ -46,18 +46,6 @@ #include "utils.h" #include "xalloc.h" -#ifdef HAVE_MINGW -#include -#define EMSGSIZE WSAEMSGSIZE -#define EAGAIN WSATRY_AGAIN -#define EINTR WSAEINTR -#define sockstrerror(x) winerror(x) -#define sockerrno WSAGetLastError() -#else -#define sockstrerror(x) strerror(x) -#define sockerrno errno -#endif - int keylifetime = 0; int keyexpires = 0; static char lzo_wrkmem[LZO1X_999_MEM_COMPRESS > LZO1X_1_MEM_COMPRESS ? LZO1X_999_MEM_COMPRESS : LZO1X_1_MEM_COMPRESS]; @@ -457,8 +445,8 @@ static void send_udppacket(node_t *n, vpn_packet_t *origpkt) { } #endif - if((sendto(listen_socket[sock].udp, (char *) &inpkt->seqno, inpkt->len, 0, &(n->address.sa), SALEN(n->address.sa))) < 0) { - if(sockerrno == EMSGSIZE) { + if(sendto(listen_socket[sock].udp, (char *) &inpkt->seqno, inpkt->len, 0, &(n->address.sa), SALEN(n->address.sa)) < 0 && !sockwouldblock(sockerrno)) { + if(sockmsgsize(sockerrno)) { if(n->maxmtu >= origlen) n->maxmtu = origlen - 1; if(n->mtu >= origlen) @@ -570,7 +558,7 @@ void handle_incoming_vpn_data(int sock) { pkt.len = recvfrom(sock, (char *) &pkt.seqno, MAXSIZE, 0, &from.sa, &fromlen); if(pkt.len < 0) { - if(sockerrno != EAGAIN && sockerrno != EINTR) + if(!sockwouldblock(sockerrno)) logger(LOG_ERR, "Receiving packet failed: %s", sockstrerror(sockerrno)); return; } diff --git a/src/net_socket.c b/src/net_socket.c index f5a569b2..46e0532e 100644 --- a/src/net_socket.c +++ b/src/net_socket.c @@ -36,10 +36,6 @@ #include -#ifdef WSAEINPROGRESS -#define EINPROGRESS WSAEINPROGRESS -#endif - /* Needed on Mac OS/X */ #ifndef SOL_TCP #define SOL_TCP IPPROTO_TCP @@ -68,7 +64,7 @@ static void configure_tcp(connection_t *c) { unsigned long arg = 1; if(ioctlsocket(c->socket, FIONBIO, &arg) != 0) { - logger(LOG_ERR, "ioctlsocket for %s: WSA error %d", c->hostname, WSAGetLastError()); + logger(LOG_ERR, "ioctlsocket for %s: %d", c->hostname, sockstrerror(sockerrno)); } #endif @@ -157,8 +153,7 @@ static bool bind_to_address(connection_t *c) { if(status) { - logger(LOG_ERR, "Can't bind to %s/tcp: %s", node, - strerror(errno)); + logger(LOG_ERR, "Can't bind to %s/tcp: %s", node, sockstrerror(sockerrno)); } else ifdebug(CONNECTIONS) { logger(LOG_DEBUG, "Successfully bound outgoing " "TCP socket to %s", node); @@ -179,7 +174,7 @@ int setup_listen_socket(const sockaddr_t *sa) { nfd = socket(sa->sa.sa_family, SOCK_STREAM, IPPROTO_TCP); if(nfd < 0) { - ifdebug(STATUS) logger(LOG_ERR, "Creating metasocket failed: %s", strerror(errno)); + ifdebug(STATUS) logger(LOG_ERR, "Creating metasocket failed: %s", sockstrerror(sockerrno)); return -1; } @@ -204,7 +199,7 @@ int setup_listen_socket(const sockaddr_t *sa) { if(setsockopt(nfd, SOL_SOCKET, SO_BINDTODEVICE, &ifr, sizeof(ifr))) { closesocket(nfd); logger(LOG_ERR, "Can't bind to interface %s: %s", iface, - strerror(errno)); + strerror(sockerrno)); return -1; } #else @@ -215,16 +210,14 @@ int setup_listen_socket(const sockaddr_t *sa) { if(bind(nfd, &sa->sa, SALEN(sa->sa))) { closesocket(nfd); addrstr = sockaddr2hostname(sa); - logger(LOG_ERR, "Can't bind to %s/tcp: %s", addrstr, - strerror(errno)); + logger(LOG_ERR, "Can't bind to %s/tcp: %s", addrstr, sockstrerror(sockerrno)); free(addrstr); return -1; } if(listen(nfd, 3)) { closesocket(nfd); - logger(LOG_ERR, "System call `%s' failed: %s", "listen", - strerror(errno)); + logger(LOG_ERR, "System call `%s' failed: %s", "listen", sockstrerror(sockerrno)); return -1; } @@ -239,7 +232,7 @@ int setup_vpn_in_socket(const sockaddr_t *sa) { nfd = socket(sa->sa.sa_family, SOCK_DGRAM, IPPROTO_UDP); if(nfd < 0) { - logger(LOG_ERR, "Creating UDP socket failed: %s", strerror(errno)); + logger(LOG_ERR, "Creating UDP socket failed: %s", sockstrerror(sockerrno)); return -1; } @@ -259,8 +252,7 @@ int setup_vpn_in_socket(const sockaddr_t *sa) { unsigned long arg = 1; if(ioctlsocket(nfd, FIONBIO, &arg) != 0) { closesocket(nfd); - logger(LOG_ERR, "Call to `%s' failed: WSA error %d", "ioctlsocket", - WSAGetLastError()); + logger(LOG_ERR, "Call to `%s' failed: %s", "ioctlsocket", sockstrerror(sockerrno)); return -1; } } @@ -301,8 +293,7 @@ int setup_vpn_in_socket(const sockaddr_t *sa) { if(bind(nfd, &sa->sa, SALEN(sa->sa))) { closesocket(nfd); addrstr = sockaddr2hostname(sa); - logger(LOG_ERR, "Can't bind to %s/udp: %s", addrstr, - strerror(errno)); + logger(LOG_ERR, "Can't bind to %s/udp: %s", addrstr, sockstrerror(sockerrno)); free(addrstr); return -1; } @@ -393,9 +384,7 @@ begin: c->socket = socket(c->address.sa.sa_family, SOCK_STREAM, IPPROTO_TCP); if(c->socket == -1) { - ifdebug(CONNECTIONS) logger(LOG_ERR, "Creating socket for %s failed: %s", c->hostname, - strerror(errno)); - + ifdebug(CONNECTIONS) logger(LOG_ERR, "Creating socket for %s failed: %s", c->hostname, sockstrerror(sockerrno)); goto begin; } @@ -417,18 +406,14 @@ begin: result = connect(c->socket, &c->address.sa, SALEN(c->address.sa)); if(result == -1) { - if(errno == EINPROGRESS -#if defined(WIN32) && !defined(O_NONBLOCK) - || WSAGetLastError() == WSAEWOULDBLOCK -#endif - ) { + if(sockinprogress(sockerrno)) { c->status.connecting = true; return; } closesocket(c->socket); - ifdebug(CONNECTIONS) logger(LOG_ERR, "%s: %s", c->hostname, strerror(errno)); + ifdebug(CONNECTIONS) logger(LOG_ERR, "%s: %s", c->hostname, sockstrerror(sockerrno)); goto begin; } @@ -493,8 +478,7 @@ bool handle_new_meta_connection(int sock) { fd = accept(sock, &sa.sa, &len); if(fd < 0) { - logger(LOG_ERR, "Accepting a new connection failed: %s", - strerror(errno)); + logger(LOG_ERR, "Accepting a new connection failed: %s", sockstrerror(sockerrno)); return false; } -- 2.20.1