1 files changed, 73 insertions, 0 deletions
diff --git a/net/sharity-light/files/unshlight.c b/net/sharity-light/files/unshlight.c
new file mode 100644
index 000000000000..e167b3611687
--- /dev/null
+++ b/net/sharity-light/files/unshlight.c
@@ -0,0 +1,73 @@
+#include <sys/param.h>
+#include <sys/mount.h>
+
+#include <err.h>
+#include <sysexits.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <signal.h>
+
+static void usage(void);
+
+int
+main(int argc, char** argv)
+{
+	struct statfs* mntbuf;
+	int mntcount, i;
+	int aflag=0;
+	int ch;
+	
+	while ( (ch = getopt(argc, argv, "a")) != -1) {
+		switch (ch) {
+		case 'a':
+			aflag=1;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	}
+	argc -= optind;
+	argv += optind;
+	if (aflag && argc != 0)
+		usage();
+	if (!aflag && argc == 0)
+		usage();
+
+	for (; argc>0 || aflag; aflag?(void)(aflag=0):(void)(argc--, argv++)) {
+		char abspath[MAXPATHLEN];
+		pid_t pid=0;
+		if (argc > 0) {
+			if (realpath(argv[0], abspath) == 0) {
+				warn(abspath);
+				continue;
+			}
+		}
+		mntcount=getmntinfo(&mntbuf, MNT_NOWAIT);
+		if (mntcount < 0)
+			err(EX_OSERR, "getmntinfo");
+		for (i=0; i<mntcount; i++) {
+			char* s;
+			int error;
+			if (argc > 0 && strcmp(abspath, mntbuf[i].f_mntonname) != 0) continue;
+			if (mntbuf[i].f_type != MOUNT_NFS) continue;
+			if (strncmp(mntbuf[i].f_mntfromname, "shlight-", 8) != 0) continue;
+			pid=strtoul(mntbuf[i].f_mntfromname+8, &s, 10);
+			if (*s) continue;
+			error = unmount (mntbuf[i].f_mntonname, 0);
+			if (error == 0) {
+				kill (pid, SIGHUP);
+			} else {
+				warn(mntbuf[i].f_mntonname);
+			}
+		}
+		if (argc > 0 && !pid) 
+			warnx("%s: not currently mounted", abspath);
+	}
+}
+
+void
+usage(void)
+{
+	errx(EX_USAGE, "Usage: unshlight [-a] [node]");
+}