From 7b7afdfc072b14a4fa4dc195f50becaa7cecc5e8 Mon Sep 17 00:00:00 2001
From: Susant Sahani <ssahani@gmail.com>
Date: Fri, 22 Jan 2016 09:41:44 +0530
Subject: systemd-activate: Add support for datagram sockets

core: Add flexible way to provide socket type
the socket type should be a diffrent argumet
in make_socket_fd . In this way we can set the socket
type like SOCK_STREAM SOCK_DGRAM in the address.

journal-remote: modify make_socket_fd
---
 src/activate/activate.c | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

(limited to 'src/activate')

diff --git a/src/activate/activate.c b/src/activate/activate.c
index b7e6255f49..36387ea621 100644
--- a/src/activate/activate.c
+++ b/src/activate/activate.c
@@ -39,6 +39,7 @@
 
 static char** arg_listen = NULL;
 static bool arg_accept = false;
+static bool arg_datagram = false;
 static char** arg_args = NULL;
 static char** arg_setenv = NULL;
 static const char *arg_fdname = NULL;
@@ -98,7 +99,11 @@ static int open_sockets(int *epoll_fd, bool accept) {
 
         STRV_FOREACH(address, arg_listen) {
 
-                fd = make_socket_fd(LOG_DEBUG, *address, SOCK_STREAM | (arg_accept*SOCK_CLOEXEC));
+                if (arg_datagram)
+                        fd = make_socket_fd(LOG_DEBUG, *address, SOCK_DGRAM, SOCK_CLOEXEC);
+                else
+                        fd = make_socket_fd(LOG_DEBUG, *address, SOCK_STREAM, (arg_accept*SOCK_CLOEXEC));
+
                 if (fd < 0) {
                         log_open();
                         return log_error_errno(fd, "Failed to open '%s': %m", *address);
@@ -304,6 +309,7 @@ static void help(void) {
         printf("%s [OPTIONS...]\n\n"
                "Listen on sockets and launch child on connection.\n\n"
                "Options:\n"
+               "  -d --datagram            Datagram sockets\n"
                "  -l --listen=ADDR         Listen for raw connections at ADDR\n"
                "  -a --accept              Spawn separate child for each connection\n"
                "  -h --help                Show this help and exit\n"
@@ -323,6 +329,7 @@ static int parse_argv(int argc, char *argv[]) {
         static const struct option options[] = {
                 { "help",        no_argument,       NULL, 'h'           },
                 { "version",     no_argument,       NULL, ARG_VERSION   },
+                { "datagram",    no_argument,       NULL, 'd'           },
                 { "listen",      required_argument, NULL, 'l'           },
                 { "accept",      no_argument,       NULL, 'a'           },
                 { "setenv",      required_argument, NULL, 'E'           },
@@ -336,7 +343,7 @@ static int parse_argv(int argc, char *argv[]) {
         assert(argc >= 0);
         assert(argv);
 
-        while ((c = getopt_long(argc, argv, "+hl:aE:", options, NULL)) >= 0)
+        while ((c = getopt_long(argc, argv, "+hl:aEd", options, NULL)) >= 0)
                 switch(c) {
                 case 'h':
                         help();
@@ -352,6 +359,10 @@ static int parse_argv(int argc, char *argv[]) {
 
                         break;
 
+                case 'd':
+                        arg_datagram = true;
+                        break;
+
                 case 'a':
                         arg_accept = true;
                         break;
@@ -385,6 +396,12 @@ static int parse_argv(int argc, char *argv[]) {
                 return -EINVAL;
         }
 
+        if (arg_datagram && arg_accept) {
+                log_error("Datagram sockets do not accept connections. "
+                          "The --datagram and --accept options may not be combined.");
+                return -EINVAL;
+        }
+
         arg_args = argv + optind;
 
         return 1 /* work to do */;
-- 
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