"Andrew W. Gray" <agray@iconsinc.com> says /GD is no longer a valid

[openssl.git] / apps / gendh.c

diff --git a/apps/gendh.c b/apps/gendh.c
index e0c7889a31e119a680f16cc112cdb071245bbf6c..e81109eaac2780de64478f6892a0e6dd3969d0f2 100644 (file)
--- a/apps/gendh.c
+++ b/apps/gendh.c
@@ -70,6 +70,7 @@
 #include <openssl/dh.h>
 #include <openssl/x509.h>
 #include <openssl/pem.h>
+#include <openssl/engine.h>
 
 #define DEFBITS        512
 #undef PROG
@@ -81,11 +82,13 @@ int MAIN(int, char **);
 
 int MAIN(int argc, char **argv)
        {
+       ENGINE *e = NULL;
        DH *dh=NULL;
        int ret=1,num=DEFBITS;
        int g=2;
        char *outfile=NULL;
        char *inrand=NULL;
+       char *engine=NULL;
        BIO *out=NULL;
 
        apps_startup();
@@ -110,6 +113,11 @@ int MAIN(int argc, char **argv)
                        g=3; */
                else if (strcmp(*argv,"-5") == 0)
                        g=5;
+               else if (strcmp(*argv,"-engine") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       engine= *(++argv);
+                       }
                else if (strcmp(*argv,"-rand") == 0)
                        {
                        if (--argc < 1) goto bad;
@@ -125,15 +133,34 @@ int MAIN(int argc, char **argv)
 bad:
                BIO_printf(bio_err,"usage: gendh [args] [numbits]\n");
                BIO_printf(bio_err," -out file - output the key to 'file\n");
-               BIO_printf(bio_err," -2    use 2 as the generator value\n");
-       /*      BIO_printf(bio_err," -3    use 3 as the generator value\n"); */
-               BIO_printf(bio_err," -5    use 5 as the generator value\n");
+               BIO_printf(bio_err," -2        - use 2 as the generator value\n");
+       /*      BIO_printf(bio_err," -3        - use 3 as the generator value\n"); */
+               BIO_printf(bio_err," -5        - use 5 as the generator value\n");
+               BIO_printf(bio_err," -engine e - use engine e, possibly a hardware device.\n");
                BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
                BIO_printf(bio_err,"           - load the file (or the files in the directory) into\n");
                BIO_printf(bio_err,"             the random number generator\n");
                goto end;
                }
                
+       if (engine != NULL)
+               {
+               if((e = ENGINE_by_id(engine)) == NULL)
+                       {
+                       BIO_printf(bio_err,"invalid engine \"%s\"\n",
+                               engine);
+                       goto end;
+                       }
+               if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
+                       {
+                       BIO_printf(bio_err,"can't use that engine\n");
+                       goto end;
+                       }
+               BIO_printf(bio_err,"engine \"%s\" set.\n", engine);
+               /* Free our "structural" reference. */
+               ENGINE_free(e);
+               }
+
        out=BIO_new(BIO_s_file());
        if (out == NULL)
                {