From e560b1d1dcf6cbcd75e6bebad55d818e2ea00dbe Mon Sep 17 00:00:00 2001
From: Marius Halden <marius.h@lden.org>
Date: Wed, 2 Dec 2015 23:26:13 +0100
Subject: Initial svcok

---
 .gitignore |  3 +++
 svcok.c    | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/.gitignore b/.gitignore
index 5394ff2..9d030c8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,7 @@
 svcscan
 svcsupervise
+svcok
+svcstat
+svctl
 *.o
 svc
diff --git a/svcok.c b/svcok.c
index e69de29..9919f80 100644
--- a/svcok.c
+++ b/svcok.c
@@ -0,0 +1,36 @@
+#include <err.h>
+#include <errno.h>
+#include <sys/file.h>
+#include <unistd.h>
+
+char *dir = ".";
+
+int
+main(int argc, char **argv)
+{
+	int fd;
+
+	if (argc > 1)
+		dir = argv[1];
+
+	if (chdir(dir) == -1)
+		err(1, "chdir()");
+
+	fd = open("supervise/lock", O_RDONLY);
+	if (fd == -1) {
+		if (errno == ENOENT)
+			exit(100);
+		else
+			err(1, "open()");
+	}
+
+	if (flock(fd, LOCK_EX | LOCK_NB) == -1) {
+		if (errno == EWOULDBLOCK)
+			exit(0);
+		else
+			err(1, "flock()");
+	} else 
+		exit(100);
+
+	return 0; /* Not reached */
+}
-- 
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