1 files changed, 107 insertions, 0 deletions
diff --git a/tools/locktest/testlk.c b/tools/locktest/testlk.c
new file mode 100644
index 0000000..ea51f78
--- /dev/null
+++ b/tools/locktest/testlk.c
@@ -0,0 +1,107 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#ifdef linux
+#include <getopt.h>
+#endif
+#include <fcntl.h>
+
+static void	usage(int exval);
+static void	fatal(char *);
+
+int
+main(int argc, char **argv)
+{
+	unsigned long	start = 0, len = 0;
+	struct flock	fl;
+	int		c, fd, cmd, typ;
+	char		*fname;
+
+	typ = F_RDLCK;
+	cmd = F_SETLK;
+
+	while ((c = getopt(argc, argv, "bhrtw")) != EOF) {
+		switch (c) {
+		case 'h':
+			usage(0);
+		case 'r':
+			cmd = F_SETLK;
+			typ = F_RDLCK;
+			break;
+		case 'w':
+			cmd = F_SETLK;
+			typ = F_WRLCK;
+			break;
+		case 'b':
+			cmd = F_SETLKW;
+			typ = F_WRLCK;
+			break;
+		case 't':
+			cmd = F_GETLK;
+			break;
+		case '?':
+			usage(1);
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	if (argc <= 0 || argc > 3)
+		usage(1);
+
+	fname = argv[0];
+	/* printf("TP\n"); */
+	if (argc > 1)
+		start = atoi(argv[1]);
+	/* printf("TP\n"); */
+	if (argc > 2)
+		len   = atoi(argv[2]);
+	/* printf("TP\n"); */
+
+	if ((fd = open(fname, O_RDWR, 0644)) < 0)
+		fatal(fname);
+
+	/* printf("TP1\n"); */
+	fl.l_type = typ;
+	fl.l_whence = 0;
+	fl.l_start = start;
+	fl.l_len = len;
+
+	if (fcntl(fd, cmd, &fl) < 0)
+		fatal("fcntl");
+	printf("fcntl: ok\n");
+	
+	/* printf("TP2\n"); */
+	if (cmd == F_GETLK) {
+		if (fl.l_type == F_UNLCK) {
+			printf("%s: no conflicting lock\n", fname);
+		} else {
+			printf("%s: conflicting lock by %d on (%zd;%zd)\n",
+				fname, fl.l_pid, fl.l_start, fl.l_len);
+		}
+		return 0;
+	}
+
+	/* printf("TP3\n"); */
+	pause();
+	return 0;
+}
+
+static void
+usage(int exval)
+{
+	fprintf(stderr, "usage: testlk filename [start [len]]\n");
+	exit(exval);
+}
+
+static void
+fatal(char *msg)
+{
+	perror(msg);
+	exit(2);
+}