X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fos_support.c;h=76187082836a5abb0d07b11efbcd98aa00a7d7f7;hb=b760ffdd07eaabf66656f3b2215c7da1c39a60ba;hp=96cd347b9ef2052072942ebf5a15b09213542e63;hpb=b827f4eb47ef05152cedb20da58a9fe33ab47b85;p=ffmpeg diff --git a/libavformat/os_support.c b/libavformat/os_support.c index 96cd347b9ef..76187082836 100644 --- a/libavformat/os_support.c +++ b/libavformat/os_support.c @@ -1,22 +1,22 @@ /* - * Various utilities for ffmpeg system + * various OS-feature replacement utilities * Copyright (c) 2000, 2001, 2002 Fabrice Bellard * copyright (c) 2002 Francois Revol * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * FFmpeg is distributed in the hope that it will be useful, + * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -25,13 +25,44 @@ #include "config.h" #include "avformat.h" -#include -#include -#include #include "os_support.h" +#if defined(_WIN32) && !defined(__MINGW32CE__) +#undef open +#include +#include +#include + +int ff_win32_open(const char *filename_utf8, int oflag, int pmode) +{ + int fd; + int num_chars; + wchar_t *filename_w; + + /* convert UTF-8 to wide chars */ + num_chars = MultiByteToWideChar(CP_UTF8, 0, filename_utf8, -1, NULL, 0); + if (num_chars <= 0) + return -1; + filename_w = av_mallocz(sizeof(wchar_t) * num_chars); + MultiByteToWideChar(CP_UTF8, 0, filename_utf8, -1, filename_w, num_chars); + + fd = _wopen(filename_w, oflag, pmode); + av_freep(&filename_w); + + /* filename maybe be in CP_ACP */ + if (fd == -1 && !(oflag & O_CREAT)) + return open(filename_utf8, oflag, pmode); + + return fd; +} +#endif + #if CONFIG_NETWORK +#include #if !HAVE_POLL_H +#if HAVE_SYS_TIME_H +#include +#endif #if HAVE_WINSOCK2_H #include #elif HAVE_SYS_SELECT_H @@ -43,53 +74,226 @@ #if !HAVE_INET_ATON #include -#include -int inet_aton (const char * str, struct in_addr * add) +int ff_inet_aton(const char *str, struct in_addr *add) { unsigned int add1 = 0, add2 = 0, add3 = 0, add4 = 0; if (sscanf(str, "%d.%d.%d.%d", &add1, &add2, &add3, &add4) != 4) return 0; - if (!add1 || (add1|add2|add3|add4) > 255) return 0; + if (!add1 || (add1 | add2 | add3 | add4) > 255) + return 0; add->s_addr = htonl((add1 << 24) + (add2 << 16) + (add3 << 8) + add4); return 1; } +#else +int ff_inet_aton(const char *str, struct in_addr *add) +{ + return inet_aton(str, add); +} #endif /* !HAVE_INET_ATON */ -/* resolve host with also IP address parsing */ -int resolve_host(struct in_addr *sin_addr, const char *hostname) +#if !HAVE_GETADDRINFO +int ff_getaddrinfo(const char *node, const char *service, + const struct addrinfo *hints, struct addrinfo **res) { - struct hostent *hp; + struct hostent *h = NULL; + struct addrinfo *ai; + struct sockaddr_in *sin; - if (!inet_aton(hostname, sin_addr)) { - hp = gethostbyname(hostname); - if (!hp) - return -1; - memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr)); +#if HAVE_WINSOCK2_H + int (WSAAPI *win_getaddrinfo)(const char *node, const char *service, + const struct addrinfo *hints, + struct addrinfo **res); + HMODULE ws2mod = GetModuleHandle("ws2_32.dll"); + win_getaddrinfo = GetProcAddress(ws2mod, "getaddrinfo"); + if (win_getaddrinfo) + return win_getaddrinfo(node, service, hints, res); +#endif + + *res = NULL; + sin = av_mallocz(sizeof(struct sockaddr_in)); + if (!sin) + return EAI_FAIL; + sin->sin_family = AF_INET; + + if (node) { + if (!ff_inet_aton(node, &sin->sin_addr)) { + if (hints && (hints->ai_flags & AI_NUMERICHOST)) { + av_free(sin); + return EAI_FAIL; + } + h = gethostbyname(node); + if (!h) { + av_free(sin); + return EAI_FAIL; + } + memcpy(&sin->sin_addr, h->h_addr_list[0], sizeof(struct in_addr)); + } + } else { + if (hints && (hints->ai_flags & AI_PASSIVE)) + sin->sin_addr.s_addr = INADDR_ANY; + else + sin->sin_addr.s_addr = INADDR_LOOPBACK; } + + /* Note: getaddrinfo allows service to be a string, which + * should be looked up using getservbyname. */ + if (service) + sin->sin_port = htons(atoi(service)); + + ai = av_mallocz(sizeof(struct addrinfo)); + if (!ai) { + av_free(sin); + return EAI_FAIL; + } + + *res = ai; + ai->ai_family = AF_INET; + ai->ai_socktype = hints ? hints->ai_socktype : 0; + switch (ai->ai_socktype) { + case SOCK_STREAM: + ai->ai_protocol = IPPROTO_TCP; + break; + case SOCK_DGRAM: + ai->ai_protocol = IPPROTO_UDP; + break; + default: + ai->ai_protocol = 0; + break; + } + + ai->ai_addr = (struct sockaddr *)sin; + ai->ai_addrlen = sizeof(struct sockaddr_in); + if (hints && (hints->ai_flags & AI_CANONNAME)) + ai->ai_canonname = h ? av_strdup(h->h_name) : NULL; + + ai->ai_next = NULL; return 0; } +void ff_freeaddrinfo(struct addrinfo *res) +{ +#if HAVE_WINSOCK2_H + void (WSAAPI *win_freeaddrinfo)(struct addrinfo *res); + HMODULE ws2mod = GetModuleHandle("ws2_32.dll"); + win_freeaddrinfo = (void (WSAAPI *)(struct addrinfo *res)) + GetProcAddress(ws2mod, "freeaddrinfo"); + if (win_freeaddrinfo) { + win_freeaddrinfo(res); + return; + } +#endif + + av_free(res->ai_canonname); + av_free(res->ai_addr); + av_free(res); +} + +int ff_getnameinfo(const struct sockaddr *sa, int salen, + char *host, int hostlen, + char *serv, int servlen, int flags) +{ + const struct sockaddr_in *sin = (const struct sockaddr_in *)sa; + +#if HAVE_WINSOCK2_H + int (WSAAPI *win_getnameinfo)(const struct sockaddr *sa, socklen_t salen, + char *host, DWORD hostlen, + char *serv, DWORD servlen, int flags); + HMODULE ws2mod = GetModuleHandle("ws2_32.dll"); + win_getnameinfo = GetProcAddress(ws2mod, "getnameinfo"); + if (win_getnameinfo) + return win_getnameinfo(sa, salen, host, hostlen, serv, servlen, flags); +#endif + + if (sa->sa_family != AF_INET) + return EAI_FAMILY; + if (!host && !serv) + return EAI_NONAME; + + if (host && hostlen > 0) { + struct hostent *ent = NULL; + uint32_t a; + if (!(flags & NI_NUMERICHOST)) + ent = gethostbyaddr((const char *)&sin->sin_addr, + sizeof(sin->sin_addr), AF_INET); + + if (ent) { + snprintf(host, hostlen, "%s", ent->h_name); + } else if (flags & NI_NAMERQD) { + return EAI_NONAME; + } else { + a = ntohl(sin->sin_addr.s_addr); + snprintf(host, hostlen, "%d.%d.%d.%d", + ((a >> 24) & 0xff), ((a >> 16) & 0xff), + ((a >> 8) & 0xff), (a & 0xff)); + } + } + + if (serv && servlen > 0) { + struct servent *ent = NULL; + if (!(flags & NI_NUMERICSERV)) + ent = getservbyport(sin->sin_port, flags & NI_DGRAM ? "udp" : "tcp"); + + if (ent) + snprintf(serv, servlen, "%s", ent->s_name); + else + snprintf(serv, servlen, "%d", ntohs(sin->sin_port)); + } + + return 0; +} +#endif /* !HAVE_GETADDRINFO */ + +#if !HAVE_GETADDRINFO || HAVE_WINSOCK2_H +const char *ff_gai_strerror(int ecode) +{ + switch (ecode) { + case EAI_AGAIN: + return "Temporary failure in name resolution"; + case EAI_BADFLAGS: + return "Invalid flags for ai_flags"; + case EAI_FAIL: + return "A non-recoverable error occurred"; + case EAI_FAMILY: + return "The address family was not recognized or the address " + "length was invalid for the specified family"; + case EAI_MEMORY: + return "Memory allocation failure"; +#if EAI_NODATA != EAI_NONAME + case EAI_NODATA: + return "No address associated with hostname"; +#endif + case EAI_NONAME: + return "The name does not resolve for the supplied parameters"; + case EAI_SERVICE: + return "servname not supported for ai_socktype"; + case EAI_SOCKTYPE: + return "ai_socktype not supported"; + } + + return "Unknown error"; +} +#endif /* !HAVE_GETADDRINFO || HAVE_WINSOCK2_H */ + int ff_socket_nonblock(int socket, int enable) { #if HAVE_WINSOCK2_H - return ioctlsocket(socket, FIONBIO, &enable); + u_long param = enable; + return ioctlsocket(socket, FIONBIO, ¶m); #else - if (enable) - return fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) | O_NONBLOCK); - else - return fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) & ~O_NONBLOCK); + if (enable) + return fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) | O_NONBLOCK); + else + return fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) & ~O_NONBLOCK); #endif } -#endif /* CONFIG_NETWORK */ -#if CONFIG_FFSERVER #if !HAVE_POLL_H -int poll(struct pollfd *fds, nfds_t numfds, int timeout) +int ff_poll(struct pollfd *fds, nfds_t numfds, int timeout) { fd_set read_set; fd_set write_set; @@ -109,8 +313,8 @@ int poll(struct pollfd *fds, nfds_t numfds, int timeout) FD_ZERO(&write_set); FD_ZERO(&exception_set); - n = -1; - for(i = 0; i < numfds; i++) { + n = 0; + for (i = 0; i < numfds; i++) { if (fds[i].fd < 0) continue; #if !HAVE_WINSOCK2_H @@ -120,41 +324,45 @@ int poll(struct pollfd *fds, nfds_t numfds, int timeout) } #endif - if (fds[i].events & POLLIN) FD_SET(fds[i].fd, &read_set); - if (fds[i].events & POLLOUT) FD_SET(fds[i].fd, &write_set); - if (fds[i].events & POLLERR) FD_SET(fds[i].fd, &exception_set); + if (fds[i].events & POLLIN) + FD_SET(fds[i].fd, &read_set); + if (fds[i].events & POLLOUT) + FD_SET(fds[i].fd, &write_set); + if (fds[i].events & POLLERR) + FD_SET(fds[i].fd, &exception_set); - if (fds[i].fd > n) - n = fds[i].fd; - }; + if (fds[i].fd >= n) + n = fds[i].fd + 1; + } - if (n == -1) + if (n == 0) /* Hey!? Nothing to poll, in fact!!! */ return 0; - if (timeout < 0) - rc = select(n+1, &read_set, &write_set, &exception_set, NULL); - else { - struct timeval tv; - - tv.tv_sec = timeout / 1000; + if (timeout < 0) { + rc = select(n, &read_set, &write_set, &exception_set, NULL); + } else { + struct timeval tv; + tv.tv_sec = timeout / 1000; tv.tv_usec = 1000 * (timeout % 1000); - rc = select(n+1, &read_set, &write_set, &exception_set, &tv); - }; + rc = select(n, &read_set, &write_set, &exception_set, &tv); + } if (rc < 0) return rc; - for(i = 0; i < (nfds_t) n; i++) { + for (i = 0; i < numfds; i++) { fds[i].revents = 0; - if (FD_ISSET(fds[i].fd, &read_set)) fds[i].revents |= POLLIN; - if (FD_ISSET(fds[i].fd, &write_set)) fds[i].revents |= POLLOUT; - if (FD_ISSET(fds[i].fd, &exception_set)) fds[i].revents |= POLLERR; - }; + if (FD_ISSET(fds[i].fd, &read_set)) + fds[i].revents |= POLLIN; + if (FD_ISSET(fds[i].fd, &write_set)) + fds[i].revents |= POLLOUT; + if (FD_ISSET(fds[i].fd, &exception_set)) + fds[i].revents |= POLLERR; + } return rc; } #endif /* HAVE_POLL_H */ -#endif /* CONFIG_FFSERVER */ - +#endif /* CONFIG_NETWORK */