Some platforms clear /var/run at boot, which makes connecting a remote console... difficult.

Previously, we only created the default /var/run/asterisk directory at install
time.  While we could create it in the init script, that would not work for
those who start asterisk manually from the command line.  So the safest thing
to do is to create it as part of the Asterisk boot process.  This also changes
the ownership of the directory, because the pid and ctl files are created after
we setuid/setgid.

(closes issue #16802)
 Reported by: Brian
 Patches: 
       20100224__issue16802.diff.txt uploaded by tilghman (license 14)
 Tested by: tzafrir


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@248859 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/asterisk.c

@@ -2868,6 +2868,12 @@ int main(int argc, char *argv[])
 	if ((!runuser) && !ast_strlen_zero(ast_config_AST_RUN_USER))
 		runuser = ast_config_AST_RUN_USER;
 
+	/* It's common on some platforms to clear /var/run at boot.  Create the
+	 * socket file directory before we drop privileges. */
+	if (mkdir(ast_config_AST_RUN_DIR, 0755) && errno != EEXIST) {
+		ast_log(LOG_WARNING, "Unable to create socket file directory.  Remote consoles will not be able to connect! (%s)\n", strerror(x));
+	}
+
 #ifndef __CYGWIN__
 
 	if (isroot) 
@@ -2880,6 +2886,9 @@ int main(int argc, char *argv[])
 			ast_log(LOG_WARNING, "No such group '%s'!\n", rungroup);
 			exit(1);
 		}
+		if (chown(ast_config_AST_RUN_DIR, -1, gr->gr_gid)) {
+			ast_log(LOG_WARNING, "Unable to chgrp run directory to %d (%s)\n", (int) gr->gr_gid, rungroup);
+		}
 		if (setgid(gr->gr_gid)) {
 			ast_log(LOG_WARNING, "Unable to setgid to %d (%s)\n", (int)gr->gr_gid, rungroup);
 			exit(1);
@@ -2902,6 +2911,9 @@ int main(int argc, char *argv[])
 			ast_log(LOG_WARNING, "No such user '%s'!\n", runuser);
 			exit(1);
 		}
+		if (chown(ast_config_AST_RUN_DIR, pw->pw_uid, -1)) {
+			ast_log(LOG_WARNING, "Unable to chown run directory to %d (%s)\n", (int) pw->pw_uid, runuser);
+		}
 #ifdef HAVE_CAP
 		if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0)) {
 			ast_log(LOG_WARNING, "Unable to keep capabilities.\n");