1 files changed, 124 insertions, 0 deletions
diff --git a/bin/uuidgen/uuidgen.c b/bin/uuidgen/uuidgen.c
new file mode 100644
index 000000000000..e135dfc4b6e0
--- /dev/null
+++ b/bin/uuidgen/uuidgen.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2002 Marcel Moolenaar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/capsicum.h>
+
+#include <capsicum_helpers.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <uuid.h>
+
+static void
+usage(void)
+{
+	(void)fprintf(stderr, "usage: uuidgen [-1] [-n count] [-o filename]\n");
+	exit(1);
+}
+
+int
+main(int argc, char *argv[])
+{
+	FILE *fp;
+	uuid_t *store, *uuid;
+	char *p;
+	int ch, count, i, iterate, status;
+
+	count = -1;	/* no count yet */
+	fp = stdout;	/* default output file */
+	iterate = 0;	/* not one at a time */
+	while ((ch = getopt(argc, argv, "1n:o:")) != -1)
+		switch (ch) {
+		case '1':
+			iterate = 1;
+			break;
+		case 'n':
+			if (count > 0)
+				usage();
+			count = strtol(optarg, &p, 10);
+			if (*p != 0 || count < 1)
+				usage();
+			break;
+		case 'o':
+			if (fp != stdout)
+				errx(1, "multiple output files not allowed");
+			fp = fopen(optarg, "w");
+			if (fp == NULL)
+				err(1, "fopen");
+			break;
+		default:
+			usage();
+		}
+	argv += optind;
+	argc -= optind;
+
+	if (argc)
+		usage();
+
+	caph_cache_catpages();
+	if (caph_limit_stdio() < 0)
+		err(1, "Unable to limit stdio");
+	if (caph_enter() < 0)
+		err(1, "Unable to enter capability mode");
+
+	if (count == -1)
+		count = 1;
+
+	store = (uuid_t*)malloc(sizeof(uuid_t) * count);
+	if (store == NULL)
+		err(1, "malloc()");
+
+	if (!iterate) {
+		/* Get them all in a single batch */
+		if (uuidgen(store, count) != 0)
+			err(1, "uuidgen()");
+	} else {
+		uuid = store;
+		for (i = 0; i < count; i++) {
+			if (uuidgen(uuid++, 1) != 0)
+				err(1, "uuidgen()");
+		}
+	}
+
+	uuid = store;
+	while (count--) {
+		uuid_to_string(uuid++, &p, &status);
+		if (status != uuid_s_ok)
+		     err(1, "cannot stringify a UUID");
+		fprintf(fp, "%s\n", p);
+		free(p);
+	}
+
+	free(store);
+	if (fp != stdout)
+		fclose(fp);
+	return (0);
+}