Provide a callback after socket creation, use _Bool

The callback is provided to set socket options, instead of individual
options such as path_mtu_discovery (which is now removed).

Noticed that the Rust rexmpp structure's C representation does not
match that of C, since Rust's "bool" maps to C99's "_Bool", while I
thought that it maps to "int" (c_int). Adjusted C structures to use
"bool" from stdbool.h as well, since C99 (GNU99) is used already.

1 files changed, 3 insertions, 4 deletions

diff --git a/src/rexmpp_tcp.c b/src/rexmpp_tcp.c
index a9c5547..c6a53a5 100644
--- a/src/rexmpp_tcp.c
+++ b/src/rexmpp_tcp.c
@@ -106,10 +106,9 @@ int rexmpp_tcp_socket(rexmpp_t *s, int domain) {
   int flags = fcntl(sock, F_GETFL, 0);
   fcntl(sock, F_SETFL, flags | O_NONBLOCK);
 
-  /* Set path MTU discovery, if provided */
-  if (s->path_mtu_discovery != -1) {
-    setsockopt(sock, SOL_IP, IP_MTU_DISCOVER, &(s->path_mtu_discovery),
-               sizeof(s->path_mtu_discovery));
+  /* Call the socket creation callback, if provided */
+  if (s->socket_cb != NULL) {
+    s->socket_cb(s, sock);
   }
 
   return sock;