Add a -hex option to 'rand' to output hexadecimal output.

ok djm@ miod@, man page help from jmc@.

1 files changed, 20 insertions, 1 deletions

diff --git a/src/lib/libssl/src/apps/rand.c b/src/lib/libssl/src/apps/rand.c
index 63724bc730..e23e84af82 100644
--- a/src/lib/libssl/src/apps/rand.c
+++ b/src/lib/libssl/src/apps/rand.c
@@ -69,6 +69,7 @@
 /* -out file         - write to file
  * -rand file:file   - PRNG seed files
  * -base64           - encode output
+ * -hex              - hex encode output
  * num               - write 'num' bytes
  */
 
@@ -84,6 +85,7 @@ int MAIN(int argc, char **argv)
         char *outfile = NULL;
         char *inrand = NULL;
         int base64 = 0;
+        int hex = 0;
         BIO *out = NULL;
         int num = -1;
 #ifndef OPENSSL_NO_ENGINE
@@ -133,6 +135,13 @@ int MAIN(int argc, char **argv)
                         else
                                 badopt = 1;
                         }
+                else if (strcmp(argv[i], "-hex") == 0)
+                        {
+                        if (!hex)
+                                hex = 1;
+                        else
+                                badopt = 1;
+                        }
                 else if (isdigit((unsigned char)argv[i][0]))
                         {
                         if (num < 0)
@@ -148,6 +157,9 @@ int MAIN(int argc, char **argv)
                         badopt = 1;
                 }
 
+        if (hex && base64)
+                badopt = 1;
+
         if (num < 0)
                 badopt = 1;
         
@@ -161,6 +173,7 @@ int MAIN(int argc, char **argv)
 #endif
                 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");
+                BIO_printf(bio_err, "-hex                  - hex encode output\n");
                 goto err;
                 }
 
@@ -210,7 +223,13 @@ int MAIN(int argc, char **argv)
                 r = RAND_bytes(buf, chunk);
                 if (r <= 0)
                         goto err;
-                BIO_write(out, buf, chunk);
+                if (!hex) 
+                        BIO_write(out, buf, chunk);
+                else {
+                        int i;
+                        for (i = 0; i < chunk; i++)
+                                BIO_printf(out, "%02x", buf[i]);
+                }
                 num -= chunk;
                 }
         BIO_flush(out);