Fix carefulwrite and its usage within manager (bug #5355, maybe)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6792 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/manager.c b/manager.c
index 55120e9661d0f425fb77abc1803880e79fb00285..bd99025a2efa30979b58797b331c23477472ec98 100755 (executable)
--- a/manager.c
+++ b/manager.c
@@ -118,12 +118,15 @@ int ast_carefulwrite(int fd, char *s, int len, int timeoutms)
                if (res < 0) res = 0;
                len -= res;
                s += res;
-               fds[0].fd = fd;
-               fds[0].events = POLLOUT;
-               /* Wait until writable again */
-               res = poll(fds, 1, timeoutms);
-               if (res < 1)
-                       return -1;
+               res = 0;
+               if (len) {
+                       fds[0].fd = fd;
+                       fds[0].events = POLLOUT;
+                       /* Wait until writable again */
+                       res = poll(fds, 1, timeoutms);
+                       if (res < 1)
+                               return -1;
+               }
        }
        return res;
 }
@@ -1292,7 +1295,7 @@ static int process_message(struct mansession *s, struct message *m)
                ast_mutex_lock(&s->__lock);
                s->busy = 0;
                while(s->eventq) {
-                       if (ast_carefulwrite(s->fd, s->eventq->eventdata, strlen(s->eventq->eventdata), s->writetimeout)) {
+                       if (ast_carefulwrite(s->fd, s->eventq->eventdata, strlen(s->eventq->eventdata), s->writetimeout) < 0) {
                                ret = -1;
                                break;
                        }