1 files changed, 57 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/mpi/utils/prng.c b/security/nss/lib/freebl/mpi/utils/prng.c
new file mode 100644
index 000000000..38748d18e
--- /dev/null
+++ b/security/nss/lib/freebl/mpi/utils/prng.c
@@ -0,0 +1,57 @@
+/*
+ *  prng.c
+ *
+ *  Command-line pseudo-random number generator
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <time.h>
+
+#ifdef __OS2__
+#include <types.h>
+#include <process.h>
+#else
+#include <unistd.h>
+#endif
+
+#include "bbs_rand.h"
+
+int
+main(int argc, char *argv[])
+{
+    unsigned char *seed;
+    unsigned int ix, num = 1;
+    pid_t pid;
+
+    if (argc > 1) {
+        num = atoi(argv[1]);
+        if (num <= 0)
+            num = 1;
+    }
+
+    pid = getpid();
+    srand(time(NULL) * (unsigned int)pid);
+
+    /* Not a perfect seed, but not bad */
+    seed = malloc(bbs_seed_size);
+    for (ix = 0; ix < bbs_seed_size; ix++) {
+        seed[ix] = rand() % UCHAR_MAX;
+    }
+
+    bbs_srand(seed, bbs_seed_size);
+    memset(seed, 0, bbs_seed_size);
+    free(seed);
+
+    while (num-- > 0) {
+        ix = bbs_rand();
+
+        printf("%u\n", ix);
+    }
+
+    return 0;
+}