Merge "thread safety: Don't use getprotobyname()" into 13

4 files changed, 14 insertions, 29 deletions

diff --git a/channels/chan_skinny.c b/channels/chan_skinny.c
index 9cde77540..9c84eec30 100644
--- a/channels/chan_skinny.c
+++ b/channels/chan_skinny.c
@@ -7642,7 +7642,6 @@ static void *accept_thread(void *ignore)
 	struct sockaddr_in sin;
 	socklen_t sinlen;
 	struct skinnysession *s;
-	struct protoent *p;
 	int arg = 1;
 
 	for (;;) {
@@ -7659,12 +7658,10 @@ static void *accept_thread(void *ignore)
 			continue;
 		}
 
-		p = getprotobyname("tcp");
-		if(p) {
-			if( setsockopt(as, p->p_proto, TCP_NODELAY, (char *)&arg, sizeof(arg) ) < 0 ) {
-				ast_log(LOG_WARNING, "Failed to set Skinny tcp connection to TCP_NODELAY mode: %s\n", strerror(errno));
-			}
+		if (setsockopt(as, IPPROTO_TCP, TCP_NODELAY, (char *) &arg, sizeof(arg)) < 0) {
+			ast_log(LOG_WARNING, "Failed to set TCP_NODELAY on Skinny TCP connection: %s\n", strerror(errno));
 		}
+
 		if (!(s = ast_calloc(1, sizeof(struct skinnysession)))) {
 			close(as);
 			ast_atomic_fetchadd_int(&unauth_sessions, -1);
diff --git a/include/asterisk/network.h b/include/asterisk/network.h
index 3371e5895..5216f4c61 100644
--- a/include/asterisk/network.h
+++ b/include/asterisk/network.h
@@ -86,6 +86,11 @@ const char *ast_inet_ntoa(struct in_addr ia);
 #endif
 #define inet_ntoa __dont__use__inet_ntoa__use__ast_inet_ntoa__instead__
 
+#ifdef getprotobyname
+#undef getprotobyname
+#endif
+#define getprotobyname __getprotobyname_is_not_threadsafe__do_not_use__
+
 /*! \brief Compares the source address and port of two sockaddr_in */
 static force_inline int inaddrcmp(const struct sockaddr_in *sin1, const struct sockaddr_in *sin2)
 {
diff --git a/main/http.c b/main/http.c
index 155b04b78..80c7b3cb4 100644
--- a/main/http.c
+++ b/main/http.c
@@ -1915,8 +1915,7 @@ static int httpd_process_request(struct ast_tcptls_session_instance *ser)
 static void *httpd_helper_thread(void *data)
 {
 	struct ast_tcptls_session_instance *ser = data;
-	struct protoent *p;
-	int flags;
+	int flags = 1;
 	int timeout;
 
 	if (!ser || !ser->f) {
@@ -1936,17 +1935,8 @@ static void *httpd_helper_thread(void *data)
 	 * This is necessary to prevent delays (caused by buffering) as we
 	 * write to the socket in bits and pieces.
 	 */
-	p = getprotobyname("tcp");
-	if (p) {
-		int arg = 1;
-
-		if (setsockopt(ser->fd, p->p_proto, TCP_NODELAY, (char *) &arg, sizeof(arg) ) < 0) {
-			ast_log(LOG_WARNING, "Failed to set TCP_NODELAY on HTTP connection: %s\n", strerror(errno));
-			ast_log(LOG_WARNING, "Some HTTP requests may be slow to respond.\n");
-		}
-	} else {
-		ast_log(LOG_WARNING, "Failed to set TCP_NODELAY on HTTP connection, getprotobyname(\"tcp\") failed\n");
-		ast_log(LOG_WARNING, "Some HTTP requests may be slow to respond.\n");
+	if (setsockopt(ser->fd, IPPROTO_TCP, TCP_NODELAY, (char *) &flags, sizeof(flags)) < 0) {
+		ast_log(LOG_WARNING, "Failed to set TCP_NODELAY on HTTP connection: %s\n", strerror(errno));
 	}
 
 	/* make sure socket is non-blocking */
diff --git a/main/manager.c b/main/manager.c
index b8dbb1a04..0f7adf0c8 100644
--- a/main/manager.c
+++ b/main/manager.c
@@ -6591,10 +6591,9 @@ static void *session_do(void *data)
 	struct mansession s = {
 		.tcptls_session = data,
 	};
-	int flags;
+	int flags = 1;
 	int res;
 	struct ast_sockaddr ser_remote_address_tmp;
-	struct protoent *p;
 
 	if (ast_atomic_fetchadd_int(&unauth_sessions, +1) >= authlimit) {
 		fclose(ser->f);
@@ -6614,14 +6613,8 @@ static void *session_do(void *data)
 	/* here we set TCP_NODELAY on the socket to disable Nagle's algorithm.
 	 * This is necessary to prevent delays (caused by buffering) as we
 	 * write to the socket in bits and pieces. */
-	p = getprotobyname("tcp");
-	if (p) {
-		int arg = 1;
-		if( setsockopt(ser->fd, p->p_proto, TCP_NODELAY, (char *)&arg, sizeof(arg) ) < 0 ) {
-			ast_log(LOG_WARNING, "Failed to set manager tcp connection to TCP_NODELAY mode: %s\nSome manager actions may be slow to respond.\n", strerror(errno));
-		}
-	} else {
-		ast_log(LOG_WARNING, "Failed to set manager tcp connection to TCP_NODELAY, getprotobyname(\"tcp\") failed\nSome manager actions may be slow to respond.\n");
+	if (setsockopt(ser->fd, IPPROTO_TCP, TCP_NODELAY, (char *) &flags, sizeof(flags)) < 0) {
+		ast_log(LOG_WARNING, "Failed to set TCP_NODELAY on manager connection: %s\n", strerror(errno));
 	}
 
 	/* make sure socket is non-blocking */