* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
#include "apps.h"
#include <openssl/bn.h>
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_HEX, OPT_GENERATE, OPT_BITS, OPT_SAFE, OPT_CHECKS
+} OPTION_CHOICE;
-#undef PROG
-#define PROG prime_main
+OPTIONS prime_options[] = {
+ {OPT_HELP_STR, 1, '-', "Usage: %s [options] [number...]\n"},
+ {OPT_HELP_STR, 1, '-',
+ " number Number to check for primality\n"},
+ {"help", OPT_HELP, '-', "Display this summary"},
+ {"hex", OPT_HEX, '-', "Hex output"},
+ {"generate", OPT_GENERATE, '-', "Generate a prime"},
+ {"bits", OPT_BITS, 'p', "Size of number in bits"},
+ {"safe", OPT_SAFE, '-',
+ "When used with -generate, generate a safe prime"},
+ {"checks", OPT_CHECKS, 'p', "Number of checks"},
+ {NULL}
+};
-int MAIN(int argc, char **argv)
- {
- int hex=0;
- int checks=20;
- BIGNUM *bn=NULL;
- BIO *bio_out;
+int prime_main(int argc, char **argv)
+{
+ BIGNUM *bn = NULL;
+ int hex = 0, checks = 20, generate = 0, bits = 0, safe = 0, ret = 1;
+ char *prog;
+ OPTION_CHOICE o;
- 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);
-
- --argc;
- ++argv;
- while (argc >= 1 && **argv == '-')
- {
- if(!strcmp(*argv,"-hex"))
- hex=1;
- else if(!strcmp(*argv,"-checks"))
- if(--argc < 1)
- goto bad;
- else
- checks=atoi(*++argv);
- else
- {
- BIO_printf(bio_err,"Unknown option '%s'\n",*argv);
- goto bad;
- }
- --argc;
- ++argv;
- }
+ prog = opt_init(argc, argv, prime_options);
+ while ((o = opt_next()) != OPT_EOF) {
+ switch (o) {
+ case OPT_EOF:
+ case OPT_ERR:
+ BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+ goto end;
+ case OPT_HELP:
+ opt_help(prime_options);
+ ret = 0;
+ goto end;
+ case OPT_HEX:
+ hex = 1;
+ break;
+ case OPT_GENERATE:
+ generate = 1;
+ break;
+ case OPT_BITS:
+ bits = atoi(opt_arg());
+ break;
+ case OPT_SAFE:
+ safe = 1;
+ break;
+ case OPT_CHECKS:
+ checks = atoi(opt_arg());
+ break;
+ }
+ }
+ argc = opt_num_rest();
+ argv = opt_rest();
- if (argv[0] == NULL)
- {
- BIO_printf(bio_err,"No prime specified\n");
- goto bad;
- }
+ if (argc == 0 && !generate) {
+ BIO_printf(bio_err, "%s: No prime specified\n", prog);
+ goto end;
+ }
- if ((bio_out=BIO_new(BIO_s_file())) != NULL)
- {
- BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
-#ifdef OPENSSL_SYS_VMS
- {
- BIO *tmpbio = BIO_new(BIO_f_linebuffer());
- bio_out = BIO_push(tmpbio, bio_out);
- }
-#endif
- }
+ if (generate) {
+ char *s;
- if(hex)
- BN_hex2bn(&bn,argv[0]);
- else
- BN_dec2bn(&bn,argv[0]);
+ if (!bits) {
+ BIO_printf(bio_err, "Specify the number of bits.\n");
+ goto end;
+ }
+ bn = BN_new();
+ BN_generate_prime_ex(bn, bits, safe, NULL, NULL, NULL);
+ s = hex ? BN_bn2hex(bn) : BN_bn2dec(bn);
+ BIO_printf(bio_out, "%s\n", s);
+ OPENSSL_free(s);
+ } else {
+ for ( ; *argv; argv++) {
+ if (hex)
+ BN_hex2bn(&bn, argv[0]);
+ else
+ BN_dec2bn(&bn, argv[0]);
- BN_print(bio_out,bn);
- BIO_printf(bio_out," is %sprime\n",
- BN_is_prime(bn,checks,NULL,NULL,NULL) ? "" : "not ");
+ BN_print(bio_out, bn);
+ BIO_printf(bio_out, " (%s) %s prime\n",
+ argv[0],
+ BN_is_prime_ex(bn, checks, NULL, NULL)
+ ? "is" : "is not");
+ }
+ }
BN_free(bn);
- BIO_free_all(bio_out);
-
- return 0;
- bad:
- BIO_printf(bio_err,"options are\n");
- BIO_printf(bio_err,"%-14s hex\n","-hex");
- BIO_printf(bio_err,"%-14s number of checks\n","-checks <n>");
- return 1;
- }
+ end:
+ return ret;
+}