/* $Id: upnputils.c,v 1.1 2013/09/07 06:45:39 nanard Exp $ */ /* MiniUPnP project * http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/ * (c) 2006-2013 Thomas Bernard * This software is subject to the conditions detailed * in the LICENCE file provided within the distribution */ #include "config.h" #include <stdio.h> #include <string.h> #include <syslog.h> #include <unistd.h> #include <fcntl.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #ifdef AF_LINK #include <net/if_dl.h> #endif #include "upnputils.h" int sockaddr_to_string(const struct sockaddr * addr, char * str, size_t size) { char buffer[64]; unsigned short port = 0; int n = -1; switch(addr->sa_family) { case AF_INET6: inet_ntop(addr->sa_family, &((struct sockaddr_in6 *)addr)->sin6_addr, buffer, sizeof(buffer)); port = ntohs(((struct sockaddr_in6 *)addr)->sin6_port); n = snprintf(str, size, "[%s]:%hu", buffer, port); break; case AF_INET: inet_ntop(addr->sa_family, &((struct sockaddr_in *)addr)->sin_addr, buffer, sizeof(buffer)); port = ntohs(((struct sockaddr_in *)addr)->sin_port); n = snprintf(str, size, "%s:%hu", buffer, port); break; #ifdef AF_LINK #if defined(__sun) /* solaris does not seem to have link_ntoa */ /* #define link_ntoa _link_ntoa */ #define link_ntoa(x) "dummy-link_ntoa" #endif case AF_LINK: { struct sockaddr_dl * sdl = (struct sockaddr_dl *)addr; n = snprintf(str, size, "index=%hu type=%d %s", sdl->sdl_index, sdl->sdl_type, link_ntoa(sdl)); } break; #endif default: n = snprintf(str, size, "unknown address family %d", addr->sa_family); #if 0 n = snprintf(str, size, "unknown address family %d " "%02x %02x %02x %02x %02x %02x %02x %02x", addr->sa_family, addr->sa_data[0], addr->sa_data[1], (unsigned)addr->sa_data[2], addr->sa_data[3], addr->sa_data[4], addr->sa_data[5], (unsigned)addr->sa_data[6], addr->sa_data[7]); #endif } return n; } int set_non_blocking(int fd) { int flags = fcntl(fd, F_GETFL); if(flags < 0) return 0; if(fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) return 0; return 1; }