Print errors from include_shell to stderr

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@2606 152afb58-edef-0310-8abb-c4023f1b3aa9

NEWS

@@ -32,6 +32,7 @@ NEWS
   * Remove adaptive spawning code from fastcgi (was disabled for a long time)
   * Allow mod_mysql_vhost to use stored procedures (fixes #2011, thx Ben Brown)
   * Fix ipv6 in mod_proxy (fixes #2043)
+  * Print errors from include_shell to stderr
 
 - 1.4.23 - 2009-06-19
   * Added some extra warning options in cmake and fix the resulting warnings (unused/static functions)

src/proc_open.c

@@ -309,6 +309,14 @@ int proc_open_buffer(const char *command, buffer *in, buffer *out, buffer *err)
 
 	if (err) {
 		proc_read_fd_to_buffer(proc.err.fd, err);
+	} else {
+		buffer *tmp = buffer_init();
+		proc_read_fd_to_buffer(proc.err.fd, tmp);
+		if (tmp->used > 0 &&  write(2, (void*)tmp->ptr, tmp->used) < 0) {
+			perror("error writing pipe");
+			return -1;
+		}
+		buffer_free(tmp);
 	}
 	pipe_close(&proc.err);