/*
- * 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
*/
#include "config.h"
#include "avformat.h"
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/time.h>
#include "os_support.h"
#if CONFIG_NETWORK
+#include <fcntl.h>
#if !HAVE_POLL_H
+#if HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif /* HAVE_SYS_TIME_H */
#if HAVE_WINSOCK2_H
#include <winsock2.h>
#elif HAVE_SYS_SELECT_H
#include <sys/select.h>
-#endif
-#endif
+#endif /* HAVE_WINSOCK2_H */
+#endif /* !HAVE_POLL_H */
#include "network.h"
#if !HAVE_INET_ATON
#include <stdlib.h>
-#include <strings.h>
-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 *h = NULL;
+ struct addrinfo *ai;
+ struct sockaddr_in *sin;
- if (!inet_aton(hostname, sin_addr)) {
-#if HAVE_GETADDRINFO
- struct addrinfo *ai, *cur;
- struct addrinfo hints;
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = AF_INET;
- if (getaddrinfo(hostname, NULL, &hints, &ai))
- return -1;
- /* getaddrinfo returns a linked list of addrinfo structs.
- * Even if we set ai_family = AF_INET above, make sure
- * that the returned one actually is of the correct type. */
- for (cur = ai; cur; cur = cur->ai_next) {
- if (cur->ai_family == AF_INET) {
- *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
- freeaddrinfo(ai);
- return 0;
+#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 /* HAVE_WINSOCK2_H */
+
+ *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 /* HAVE_WINSOCK2_H */
+
+ 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 /* HAVE_WINSOCK2_H */
+
+ 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));
}
- freeaddrinfo(ai);
- return -1;
-#else
- struct hostent *hp;
- hp = gethostbyname(hostname);
- if (!hp)
- return -1;
- memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
-#endif
}
+
+ if (serv && servlen > 0) {
+ if (!(flags & NI_NUMERICSERV))
+ return EAI_FAIL;
+ 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 /* EAI_NODATA != EAI_NONAME */
+ 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);
-#endif
+ 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 /* HAVE_WINSOCK2_H */
}
-#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;
errno = EINVAL;
return -1;
}
-#endif
+#endif /* HAVE_WINSOCK2_H */
FD_ZERO(&read_set);
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
errno = EINVAL;
return -1;
}
-#endif
+#endif /* !HAVE_WINSOCK2_H */
- 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 /* !HAVE_POLL_H */
+#endif /* CONFIG_NETWORK */
projects / ffmpeg / blobdiff