Add support for re-exec'ing with SIGHUP; equivalent to the already built-in

'restart' function.

2 files changed, 16 insertions, 3 deletions

diff --git a/calmwm.c b/calmwm.c
index 20e3346..ff4568b 100644
--- a/calmwm.c
+++ b/calmwm.c
@@ -15,7 +15,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * $OpenBSD: calmwm.c,v 1.104 2017/12/27 17:04:35 okan Exp $
+ * $OpenBSD: calmwm.c,v 1.105 2017/12/27 18:46:18 okan Exp $
  */
 
 #include <sys/types.h>
@@ -82,6 +82,8 @@ main(int argc, char **argv)
 
 	if (signal(SIGCHLD, sighdlr) == SIG_ERR)
 		err(1, "signal");
+	if (signal(SIGHUP, sighdlr) == SIG_ERR)
+		err(1, "signal");
 
 	Conf.homedir = getenv("HOME");
 	if ((Conf.homedir == NULL) || (Conf.homedir[0] == '\0')) {
@@ -221,6 +223,9 @@ sighdlr(int sig)
 		    (pid < 0 && errno == EINTR))
 			;
 		break;
+	case SIGHUP:
+		cwm_status = CWM_EXEC_WM;
+		break;
 	}
 
 	errno = save_errno;
diff --git a/cwm.1 b/cwm.1
index 8da9de0..2bf5ee0 100644
--- a/cwm.1
+++ b/cwm.1
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: cwm.1,v 1.58 2017/07/21 15:55:37 okan Exp $
+.\"	$OpenBSD: cwm.1,v 1.59 2017/12/27 18:46:18 okan Exp $
 .\"
 .\" Copyright (c) 2004,2005 Marius Aamodt Eriksen <marius@monkey.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: July 21 2017 $
+.Dd $Mdocdate: December 27 2017 $
 .Dt CWM 1
 .Os
 .Sh NAME
@@ -184,6 +184,14 @@ List all available items.
 .It Ic [Esc]
 Cancel.
 .El
+.Pp
+.Nm
+rereads its configuration file when it receives a hangup signal,
+.Dv SIGHUP ,
+by executing itself with the name and arguments with which it was started.
+This is equivilant to the
+.Ar restart
+function.
 .Sh SEARCH
 .Nm
 features the ability to search for windows by their current title,