tcp: properly return EOF

There is no POSIX error code for EOF - recv() signals EOF by simply
returning 0. But libavformat recently changed its conventions and
requires an explicit AVERROR_EOF, or it might get into an endless retry
loop, consuming 100% CPU while doing nothing.

diff --git a/libavformat/tcp.c b/libavformat/tcp.c
index fef0729da683bdd29ade1e656346be26ec355f20..8773493df1efebac33cff5d203c8c9ff17299d4b 100644 (file)
--- a/libavformat/tcp.c
+++ b/libavformat/tcp.c
@@ -225,6 +225,8 @@ static int tcp_read(URLContext *h, uint8_t *buf, int size)
             return ret;
     }
     ret = recv(s->fd, buf, size, 0);
+    if (ret == 0)
+        return AVERROR_EOF;
     return ret < 0 ? ff_neterrno() : ret;
 }