[patch] emacsclient vs SIGWINCH

[Karl Chen]

On Solaris (but not Linux), emacsclient dies upon SIGWINCH.

The problem is that recv() gets interrupted and returns EINTR.

The patch below works for me.

Karl


diff --git a/lib-src/emacsclient.c b/lib-src/emacsclient.c
index e5484b9..17945aa 100644
--- a/lib-src/emacsclient.c
+++ b/lib-src/emacsclient.c
@@ -1708,10 +1708,21 @@ main (int argc, char **argv)
   fsync (1);
 
   /* Now, wait for an answer and print any messages.  */
-  while (exit_status == EXIT_SUCCESS
-        && (rl = recv (emacs_socket, string, BUFSIZ, 0)) > 0)
+  while (exit_status == EXIT_SUCCESS)
     {
       char *p;
+      do 
+        {
+          errno = 0; 
+          rl = recv (emacs_socket, string, BUFSIZ, 0);
+          /* If we receive a signal (e.g. SIGWINCH, which we
+             pass through to emacs), on some OSes we get EINTR and
+             must retry. */
+        }
+      while (rl < 0 && errno == EINTR);
+      if (rl <= 0)
+        break;
+      
       string[rl] = '\0';
 
       p = string + strlen (string) - 1;