Set the MSG_NOSIGNAL flag send send()ing so a bad socket write doesn't terminate blabouncer with SIGPIPE.

1 files changed, 3 insertions, 1 deletions

diff --git a/sockets.c b/sockets.c
index 64a3e5d..5b4c0c2 100644
--- a/sockets.c
+++ b/sockets.c
@@ -223,8 +223,10 @@ int socksend(SSL *fd, char *buf, int bufsize, int tls) {
   if (tls) {
     return SSL_write(fd, buf, bufsize);
   } else {
+    // Clear errno in case send() errors
+    errno = 0;
     // Cast the supposed SSL *fd to a long int if we're not using TLS
-    return send((long int)fd, buf, bufsize, 0);
+    return send((long int)fd, buf, bufsize, MSG_NOSIGNAL); // MSG_NOSIGNAL so a bad send() can't SIGPIPE blabouncer
   }
 }