1 files changed, 140 insertions, 0 deletions

diff --git a/src/lib/libssl/src/apps/rand.c b/src/lib/libssl/src/apps/rand.c
new file mode 100644
index 0000000000..cfbba30755
--- /dev/null
+++ b/src/lib/libssl/src/apps/rand.c
@@ -0,0 +1,140 @@
+/* apps/rand.c */
+
+#include "apps.h"
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/rand.h>
+
+#undef PROG
+#define PROG rand_main
+
+/* -out file         - write to file
+ * -rand file:file   - PRNG seed files
+ * -base64           - encode output
+ * num               - write 'num' bytes
+ */
+
+int MAIN(int, char **);
+
+int MAIN(int argc, char **argv)
+        {
+        int i, r, ret = 1;
+        int badopt;
+        char *outfile = NULL;
+        char *inrand = NULL;
+        int base64 = 0;
+        BIO *out = NULL;
+        int num = -1;
+
+        apps_startup();
+
+        if (bio_err == NULL)
+                if ((bio_err = BIO_new(BIO_s_file())) != NULL)
+                        BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT);
+
+        badopt = 0;
+        i = 0;
+        while (!badopt && argv[++i] != NULL)
+                {
+                if (strcmp(argv[i], "-out") == 0)
+                        {
+                        if ((argv[i+1] != NULL) && (outfile == NULL))
+                                outfile = argv[++i];
+                        else
+                                badopt = 1;
+                        }
+                else if (strcmp(argv[i], "-rand") == 0)
+                        {
+                        if ((argv[i+1] != NULL) && (inrand == NULL))
+                                inrand = argv[++i];
+                        else
+                                badopt = 1;
+                        }
+                else if (strcmp(argv[i], "-base64") == 0)
+                        {
+                        if (!base64)
+                                base64 = 1;
+                        else
+                                badopt = 1;
+                        }
+                else if (isdigit(argv[i][0]))
+                        {
+                        if (num < 0)
+                                {
+                                r = sscanf(argv[i], "%d", &num);
+                                if (r == 0 || num < 0)
+                                        badopt = 1;
+                                }
+                        else
+                                badopt = 1;
+                        }
+                else
+                        badopt = 1;
+                }
+
+        if (num < 0)
+                badopt = 1;
+        
+        if (badopt) 
+                {
+                BIO_printf(bio_err, "Usage: rand [options] num\n");
+                BIO_printf(bio_err, "where options are\n");
+                BIO_printf(bio_err, "-out file            - write to file\n");
+                BIO_printf(bio_err, "-rand file%cfile%c...  - seed PRNG from files\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
+                BIO_printf(bio_err, "-base64              - encode output\n");
+                goto err;
+                }
+
+        app_RAND_load_file(NULL, bio_err, (inrand != NULL));
+        if (inrand != NULL)
+                BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
+                        app_RAND_load_files(inrand));
+
+        out = BIO_new(BIO_s_file());
+        if (out == NULL)
+                goto err;
+        if (outfile != NULL)
+                r = BIO_write_filename(out, outfile);
+        else
+                r = BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT);
+        if (r <= 0)
+                goto err;
+
+        if (base64)
+                {
+                BIO *b64 = BIO_new(BIO_f_base64());
+                if (b64 == NULL)
+                        goto err;
+                out = BIO_push(b64, out);
+                }
+        
+        while (num > 0) 
+                {
+                unsigned char buf[4096];
+                int chunk;
+
+                chunk = num;
+                if (chunk > sizeof buf)
+                        chunk = sizeof buf;
+                r = RAND_bytes(buf, chunk);
+                if (r <= 0)
+                        goto err;
+                BIO_write(out, buf, chunk);
+                num -= chunk;
+                }
+        BIO_flush(out);
+
+        app_RAND_write_file(NULL, bio_err);
+        ret = 0;
+        
+err:
+        ERR_print_errors(bio_err);
+        if (out)
+                BIO_free_all(out);
+        EXIT(ret);
+        }