minor improvements

core/socket.c

@@ -1958,3 +1958,21 @@ void uwsgi_tcp_nodelay(int fd) {
 #endif
 }
 
+int uwsgi_accept(int server_fd) {
+	struct sockaddr_un client_src;
+        memset(&client_src, 0, sizeof(struct sockaddr_un));
+        socklen_t client_src_len = 0;
+#if defined(__linux__) && defined(SOCK_NONBLOCK) && !defined(OBSOLETE_LINUX_KERNEL)
+        return accept4(server_fd, (struct sockaddr *) &client_src, &client_src_len, SOCK_NONBLOCK);
+#elif defined(__linux__)
+        int client_fd = accept(server_fd, (struct sockaddr *) &client_src, &client_src_len);
+        if (client_fd >= 0) {
+                uwsgi_socket_nb(client_fd);
+        }
+        return client_fd;
+#else
+ 	return accept(server_fd, (struct sockaddr *) &client_src, &client_src_len);
+#endif
+
+
+}

core/utils.c

@@ -543,6 +543,13 @@ void uwsgi_as_root() {
                                 }
                         }
 
+
+                	int i;
+                	for (i = 0; i < uwsgi.gp_cnt; i++) {
+                        	if (uwsgi.gp[i]->post_jail) {
+                                	uwsgi.gp[i]->post_jail();
+                        	}
+                	}
 		}
 
 		if (uwsgi.chroot && !uwsgi.reloads) {

core/uwsgi.c

@@ -2374,7 +2374,7 @@ int uwsgi_start(void *v_argv) {
 
         uwsgi_foreach(usl, uwsgi.call_in_jail) {
                 if (uwsgi_call_symbol(usl->value)) {
-                        uwsgi_log("unaable to call function \"%s\"\n", usl->value);
+                        uwsgi_log("unable to call function \"%s\"\n", usl->value);
 			exit(1);
                 }
         }

plugins/pty/pty.c

@@ -118,6 +118,14 @@ static void *uwsgi_pty_loop(void *arg) {
                 if client is ready we have something to write to the master pty
         */
 
+	// block signals on this thread
+        sigset_t smask;
+        sigfillset(&smask);
+#ifndef UWSGI_DEBUG
+        sigdelset(&smask, SIGSEGV);
+#endif
+        pthread_sigmask(SIG_BLOCK, &smask, NULL);
+
         for(;;) {
                 char buf[8192];
                 int interesting_fd = -1;

uwsgi.h

@@ -1003,6 +1003,7 @@ struct uwsgi_plugin {
 	uint16_t(*rpc) (void *, uint8_t, char **, uint16_t *, char *);
 
 	void (*jail) (int (*)(void *), char **);
+	void (*post_jail) (void);
 	void (*before_privileges_drop) (void);
 
 	int (*mule) (char *);
@@ -4293,6 +4294,8 @@ void uwsgi_log_encoders_register_embedded(void);
 
 void uwsgi_register_log_encoder(char *, char *(*)(struct uwsgi_log_encoder *, char *, size_t, size_t *));
 
+int uwsgi_accept(int);
+
 #ifdef __cplusplus
 }
 #endif