ff_msmpeg4_decode_init() calls ff_h263_decode_init() which calls

[ffmpeg] / libavformat / tcp.c

diff --git a/libavformat/tcp.c b/libavformat/tcp.c
index 957b1adfe7f9a4d32bb9e54f51a373155c425545..a8cf80fbffd09d28208e6627f9709381fbe0b93b 100644 (file)
--- a/libavformat/tcp.c
+++ b/libavformat/tcp.c
@@ -1,6 +1,6 @@
 /*
  * TCP protocol
- * Copyright (c) 2002 Fabrice Bellard.
+ * Copyright (c) 2002 Fabrice Bellard
  *
  * This file is part of FFmpeg.
  *
@@ -22,6 +22,9 @@
 #include <unistd.h>
 #include "network.h"
 #include "os_support.h"
+#if HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
 #include <sys/time.h>
 
 typedef struct TCPContext {
@@ -31,46 +34,41 @@ typedef struct TCPContext {
 /* return non zero if error */
 static int tcp_open(URLContext *h, const char *uri, int flags)
 {
-    struct sockaddr_in dest_addr;
-    char hostname[1024], *q;
+    struct addrinfo hints, *ai, *cur_ai;
     int port, fd = -1;
     TCPContext *s = NULL;
     fd_set wfds;
     int fd_max, ret;
     struct timeval tv;
     socklen_t optlen;
-    char proto[1024],path[1024],tmp[1024];
-
-    url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
-      &port, path, sizeof(path), uri);
-    if (strcmp(proto,"tcp")) goto fail;
-    if ((q = strchr(hostname,'@'))) { strcpy(tmp,q+1); strcpy(hostname,tmp); }
-
-    s = av_malloc(sizeof(TCPContext));
-    if (!s)
-        return AVERROR(ENOMEM);
-    h->priv_data = s;
-    h->is_streamed = 1;
-
-    if (port <= 0 || port >= 65536)
-        goto fail;
+    char hostname[1024],proto[1024],path[1024];
+    char portstr[10];
 
     if(!ff_network_init())
         return AVERROR(EIO);
 
-    dest_addr.sin_family = AF_INET;
-    dest_addr.sin_port = htons(port);
-    if (resolve_host(&dest_addr.sin_addr, hostname) < 0)
-        goto fail;
+    url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
+        &port, path, sizeof(path), uri);
+    if (strcmp(proto,"tcp") || port <= 0 || port >= 65536)
+        return AVERROR(EINVAL);
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    snprintf(portstr, sizeof(portstr), "%d", port);
+    if (getaddrinfo(hostname, portstr, &hints, &ai))
+        return AVERROR(EIO);
 
-    fd = socket(AF_INET, SOCK_STREAM, 0);
+    cur_ai = ai;
+
+ restart:
+    fd = socket(cur_ai->ai_family, cur_ai->ai_socktype, cur_ai->ai_protocol);
     if (fd < 0)
         goto fail;
     ff_socket_nonblock(fd, 1);
 
  redo:
-    ret = connect(fd, (struct sockaddr *)&dest_addr,
-                  sizeof(dest_addr));
+    ret = connect(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
     if (ret < 0) {
         if (ff_neterrno() == FF_NETERROR(EINTR))
             goto redo;
@@ -100,15 +98,30 @@ static int tcp_open(URLContext *h, const char *uri, int flags)
         if (ret != 0)
             goto fail;
     }
+    s = av_malloc(sizeof(TCPContext));
+    if (!s) {
+        freeaddrinfo(ai);
+        return AVERROR(ENOMEM);
+    }
+    h->priv_data = s;
+    h->is_streamed = 1;
     s->fd = fd;
+    freeaddrinfo(ai);
     return 0;
 
  fail:
+    if (cur_ai->ai_next) {
+        /* Retry with the next sockaddr */
+        cur_ai = cur_ai->ai_next;
+        if (fd >= 0)
+            closesocket(fd);
+        goto restart;
+    }
     ret = AVERROR(EIO);
  fail1:
     if (fd >= 0)
         closesocket(fd);
-    av_free(s);
+    freeaddrinfo(ai);
     return ret;
 }
 
@@ -133,7 +146,7 @@ static int tcp_read(URLContext *h, uint8_t *buf, int size)
             if (len < 0) {
                 if (ff_neterrno() != FF_NETERROR(EINTR) &&
                     ff_neterrno() != FF_NETERROR(EAGAIN))
-                    return AVERROR(errno);
+                    return AVERROR(ff_neterrno());
             } else return len;
         } else if (ret < 0) {
             return -1;
@@ -163,7 +176,7 @@ static int tcp_write(URLContext *h, uint8_t *buf, int size)
             if (len < 0) {
                 if (ff_neterrno() != FF_NETERROR(EINTR) &&
                     ff_neterrno() != FF_NETERROR(EAGAIN))
-                    return AVERROR(errno);
+                    return AVERROR(ff_neterrno());
                 continue;
             }
             size -= len;
@@ -184,6 +197,12 @@ static int tcp_close(URLContext *h)
     return 0;
 }
 
+static int tcp_get_file_handle(URLContext *h)
+{
+    TCPContext *s = h->priv_data;
+    return s->fd;
+}
+
 URLProtocol tcp_protocol = {
     "tcp",
     tcp_open,
@@ -191,4 +210,5 @@ URLProtocol tcp_protocol = {
     tcp_write,
     NULL, /* seek */
     tcp_close,
+    .url_get_file_handle = tcp_get_file_handle,
 };