Even if we are asked to wait for data, bail out if all sockets are at EOF.

I'm far from being sure this is the right thing to do, but it allows MMSH to work correctly (it requests some data while the server is closing connection)

src/network/io.c

@@ -144,6 +144,9 @@ net_ReadInner( vlc_object_t *restrict p_this, unsigned fdc, const int *fdv,
                int wait_ms, vlc_bool_t waitall )
 {
     size_t i_total = 0;
+    int eof[fdc];
+    unsigned int i_eof = 0;
+    memset( eof, 0, sizeof( eof ) );
 
     do
     {
@@ -159,6 +162,9 @@ net_ReadInner( vlc_object_t *restrict p_this, unsigned fdc, const int *fdv,
         if( i_buflen == 0 )
             return i_total; // output buffer full
 
+        if( i_eof == fdc )
+            return i_total; // all sockets are at EOF
+
         delay_ms = 500;
         if( (wait_ms != -1) && (wait_ms < 500) )
             delay_ms = wait_ms;
@@ -276,6 +282,14 @@ receive:
         p_buf += n;
         i_buflen -= n;
 
+        if( n ==  0 ) // EOF on socket
+        {
+            unsigned int j;
+            for( j = 0 ; j < i_eof ; j++ )
+                if( eof[j] == *fdv ) goto end;
+            eof[i_eof++] = *fdv;
+        }
+end:
         if( wait_ms == -1 )
         {
             if( !waitall )