1 files changed, 76 insertions, 0 deletions
diff --git a/bin/tests/genrandom.c b/bin/tests/genrandom.c
new file mode 100644
index 0000000..34f6ac0
--- /dev/null
+++ b/bin/tests/genrandom.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2000-2003  Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: genrandom.c,v 1.15 2007/06/19 23:46:59 tbox Exp $ */
+
+/*! \file */
+#include <config.h>
+
+#include <stdio.h>
+#include <time.h>
+
+#include <isc/stdlib.h>
+
+int
+main(int argc, char **argv) {
+	unsigned int bytes;
+	unsigned int k;
+	char *endp;
+	FILE *fp;
+
+	if (argc != 3) {
+		printf("usage: genrandom k file\n");
+		exit(1);
+	}
+	k = strtoul(argv[1], &endp, 10);
+	if (*endp != 0) {
+		printf("usage: genrandom k file\n");
+		exit(1);
+	}
+	bytes = k << 10;
+
+	fp = fopen(argv[2], "w");
+	if (fp == NULL) {
+		printf("failed to open %s\n", argv[2]);
+		exit(1);
+	}
+
+#ifndef HAVE_ARC4RANDOM
+	srand(0x12345678);
+#endif
+	while (bytes > 0) {
+#ifndef HAVE_ARC4RANDOM
+		unsigned short int x = (rand() & 0xFFFF);
+#else
+		unsigned short int x = (arc4random() & 0xFFFF);
+#endif
+		unsigned char c = x & 0xFF;
+		if (putc(c, fp) == EOF) {
+			printf("error writing to file\n");
+			exit(1);
+		}
+		c = x >> 8;
+		if (putc(c, fp) == EOF) {
+			printf("error writing to file\n");
+			exit(1);
+		}
+		bytes -= 2;
+	}
+	fclose(fp);
+
+	return (0);
+}