avformat/udp: return the error code instead of generic EIO

Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>

1 files changed, 36 insertions, 22 deletions

diff --git a/libavformat/udp.c b/libavformat/udp.c
index 13c346a6a9..c4e403bbfc 100644
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -165,7 +165,7 @@ static int udp_set_multicast_ttl(int sockfd, int mcastTTL,
     if (addr->sa_family == AF_INET) {
         if (setsockopt(sockfd, IPPROTO_IP, IP_MULTICAST_TTL, &mcastTTL, sizeof(mcastTTL)) < 0) {
             ff_log_net_error(NULL, AV_LOG_ERROR, "setsockopt(IP_MULTICAST_TTL)");
-            return -1;
+            return ff_neterrno();
         }
     }
 #endif
@@ -173,7 +173,7 @@ static int udp_set_multicast_ttl(int sockfd, int mcastTTL,
     if (addr->sa_family == AF_INET6) {
         if (setsockopt(sockfd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &mcastTTL, sizeof(mcastTTL)) < 0) {
             ff_log_net_error(NULL, AV_LOG_ERROR, "setsockopt(IPV6_MULTICAST_HOPS)");
-            return -1;
+            return ff_neterrno();
         }
     }
 #endif
@@ -193,7 +193,7 @@ static int udp_join_multicast_group(int sockfd, struct sockaddr *addr,struct soc
             mreq.imr_interface.s_addr = INADDR_ANY;
         if (setsockopt(sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (const void *)&mreq, sizeof(mreq)) < 0) {
             ff_log_net_error(NULL, AV_LOG_ERROR, "setsockopt(IP_ADD_MEMBERSHIP)");
-            return -1;
+            return ff_neterrno();
         }
     }
 #endif
@@ -206,7 +206,7 @@ static int udp_join_multicast_group(int sockfd, struct sockaddr *addr,struct soc
         mreq6.ipv6mr_interface = 0;
         if (setsockopt(sockfd, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, &mreq6, sizeof(mreq6)) < 0) {
             ff_log_net_error(NULL, AV_LOG_ERROR, "setsockopt(IPV6_ADD_MEMBERSHIP)");
-            return -1;
+            return ff_neterrno();
         }
     }
 #endif
@@ -633,6 +633,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
     char buf[256];
     struct sockaddr_storage my_addr;
     socklen_t len;
+    int ret;
 
     h->is_streamed = 1;
 
@@ -641,12 +642,12 @@ static int udp_open(URLContext *h, const char *uri, int flags)
         s->buffer_size = is_output ? UDP_TX_BUF_SIZE : UDP_RX_BUF_SIZE;
 
     if (s->sources) {
-        if (ff_ip_parse_sources(h, s->sources, &s->filters) < 0)
+        if ((ret = ff_ip_parse_sources(h, s->sources, &s->filters)) < 0)
             goto fail;
     }
 
     if (s->block) {
-        if (ff_ip_parse_blocks(h, s->block, &s->filters) < 0)
+        if ((ret = ff_ip_parse_blocks(h, s->block, &s->filters)) < 0)
             goto fail;
     }
 
@@ -712,11 +713,11 @@ static int udp_open(URLContext *h, const char *uri, int flags)
             av_strlcpy(localaddr, buf, sizeof(localaddr));
         }
         if (av_find_info_tag(buf, sizeof(buf), "sources", p)) {
-            if (ff_ip_parse_sources(h, buf, &s->filters) < 0)
+            if ((ret = ff_ip_parse_sources(h, buf, &s->filters)) < 0)
                 goto fail;
         }
         if (av_find_info_tag(buf, sizeof(buf), "block", p)) {
-            if (ff_ip_parse_blocks(h, buf, &s->filters) < 0)
+            if ((ret = ff_ip_parse_blocks(h, buf, &s->filters)) < 0)
                 goto fail;
         }
         if (!is_output && av_find_info_tag(buf, sizeof(buf), "timeout", p))
@@ -742,7 +743,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
         if (!(flags & AVIO_FLAG_READ))
             goto fail;
     } else {
-        if (ff_udp_set_remote_url(h, uri) < 0)
+        if ((ret = ff_udp_set_remote_url(h, uri)) < 0)
             goto fail;
     }
 
@@ -763,15 +764,22 @@ static int udp_open(URLContext *h, const char *uri, int flags)
      */
     if (s->reuse_socket > 0 || (s->is_multicast && s->reuse_socket < 0)) {
         s->reuse_socket = 1;
-        if (setsockopt (udp_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket)) != 0)
+        if (setsockopt (udp_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket)) != 0) {
+            ret = ff_neterrno();
             goto fail;
+        }
     }
 
     if (s->is_broadcast) {
 #ifdef SO_BROADCAST
-        if (setsockopt (udp_fd, SOL_SOCKET, SO_BROADCAST, &(s->is_broadcast), sizeof(s->is_broadcast)) != 0)
+        if (setsockopt (udp_fd, SOL_SOCKET, SO_BROADCAST, &(s->is_broadcast), sizeof(s->is_broadcast)) != 0) {
+            ret = ff_neterrno();
+            goto fail;
+        }
+#else
+        ret = AVERROR(ENOSYS);
+        goto fail;
 #endif
-           goto fail;
     }
 
     /* Set the checksum coverage for UDP-Lite (RFC 3828) for sending and receiving.
@@ -788,8 +796,10 @@ static int udp_open(URLContext *h, const char *uri, int flags)
 
     if (dscp >= 0) {
         dscp <<= 2;
-        if (setsockopt (udp_fd, IPPROTO_IP, IP_TOS, &dscp, sizeof(dscp)) != 0)
+        if (setsockopt (udp_fd, IPPROTO_IP, IP_TOS, &dscp, sizeof(dscp)) != 0) {
+            ret = ff_neterrno();
             goto fail;
+        }
     }
 
     /* If multicast, try binding the multicast address first, to avoid
@@ -804,6 +814,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
     /* the bind is needed to give a port to the socket now */
     if (bind_ret < 0 && bind(udp_fd,(struct sockaddr *)&my_addr, len) < 0) {
         ff_log_net_error(h, AV_LOG_ERROR, "bind failed");
+        ret = ff_neterrno();
         goto fail;
     }
 
@@ -814,28 +825,28 @@ static int udp_open(URLContext *h, const char *uri, int flags)
     if (s->is_multicast) {
         if (h->flags & AVIO_FLAG_WRITE) {
             /* output */
-            if (udp_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr) < 0)
+            if ((ret = udp_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr)) < 0)
                 goto fail;
         }
         if (h->flags & AVIO_FLAG_READ) {
             /* input */
             if (s->filters.nb_include_addrs) {
-                if (udp_set_multicast_sources(h, udp_fd,
+                if ((ret = udp_set_multicast_sources(h, udp_fd,
                                               (struct sockaddr *)&s->dest_addr,
                                               s->dest_addr_len, &s->local_addr_storage,
                                               s->filters.include_addrs,
-                                              s->filters.nb_include_addrs, 1) < 0)
+                                              s->filters.nb_include_addrs, 1)) < 0)
                     goto fail;
             } else {
-                if (udp_join_multicast_group(udp_fd, (struct sockaddr *)&s->dest_addr,(struct sockaddr *)&s->local_addr_storage) < 0)
+                if ((ret = udp_join_multicast_group(udp_fd, (struct sockaddr *)&s->dest_addr,(struct sockaddr *)&s->local_addr_storage)) < 0)
                     goto fail;
             }
             if (s->filters.nb_exclude_addrs) {
-                if (udp_set_multicast_sources(h, udp_fd,
+                if ((ret = udp_set_multicast_sources(h, udp_fd,
                                               (struct sockaddr *)&s->dest_addr,
                                               s->dest_addr_len, &s->local_addr_storage,
                                               s->filters.exclude_addrs,
-                                              s->filters.nb_exclude_addrs, 0) < 0)
+                                              s->filters.nb_exclude_addrs, 0)) < 0)
                     goto fail;
             }
         }
@@ -846,6 +857,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
         tmp = s->buffer_size;
         if (setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp)) < 0) {
             ff_log_net_error(h, AV_LOG_ERROR, "setsockopt(SO_SNDBUF)");
+            ret = ff_neterrno();
             goto fail;
         }
     } else {
@@ -869,6 +881,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
     if (s->is_connected) {
         if (connect(udp_fd, (struct sockaddr *) &s->dest_addr, s->dest_addr_len)) {
             ff_log_net_error(h, AV_LOG_ERROR, "connect");
+            ret = ff_neterrno();
             goto fail;
         }
     }
@@ -888,23 +901,24 @@ static int udp_open(URLContext *h, const char *uri, int flags)
     }
 
     if ((!is_output && s->circular_buffer_size) || (is_output && s->bitrate && s->circular_buffer_size)) {
-        int ret;
-
         /* start the task going */
         s->fifo = av_fifo_alloc(s->circular_buffer_size);
         ret = pthread_mutex_init(&s->mutex, NULL);
         if (ret != 0) {
             av_log(h, AV_LOG_ERROR, "pthread_mutex_init failed : %s\n", strerror(ret));
+            ret = AVERROR(ret);
             goto fail;
         }
         ret = pthread_cond_init(&s->cond, NULL);
         if (ret != 0) {
             av_log(h, AV_LOG_ERROR, "pthread_cond_init failed : %s\n", strerror(ret));
+            ret = AVERROR(ret);
             goto cond_fail;
         }
         ret = pthread_create(&s->circular_buffer_thread, NULL, is_output?circular_buffer_task_tx:circular_buffer_task_rx, h);
         if (ret != 0) {
             av_log(h, AV_LOG_ERROR, "pthread_create failed : %s\n", strerror(ret));
+            ret = AVERROR(ret);
             goto thread_fail;
         }
         s->thread_started = 1;
@@ -923,7 +937,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
         closesocket(udp_fd);
     av_fifo_freep(&s->fifo);
     ff_ip_reset_filters(&s->filters);
-    return AVERROR(EIO);
+    return ret;
 }
 
 static int udplite_open(URLContext *h, const char *uri, int flags)