-/* apps/dhparam.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
# include <openssl/dsa.h>
# endif
-# undef PROG
-# define PROG dhparam_main
-
# define DEFBITS 2048
-/*-
- * -inform arg - input format - default PEM (DER or PEM)
- * -outform arg - output format - default PEM
- * -in arg - input file - default stdin
- * -out arg - output file - default stdout
- * -dsaparam - read or generate DSA parameters, convert to DH
- * -check - check the parameters are ok
- * -noout
- * -text
- * -C
- */
-
static int dh_cb(int p, int n, BN_GENCB *cb);
-int MAIN(int, char **);
-
-int MAIN(int argc, char **argv)
-{
- DH *dh = NULL;
- int i, badops = 0, text = 0;
-# ifndef OPENSSL_NO_DSA
- int dsaparam = 0;
-# endif
- BIO *in = NULL, *out = NULL;
- int informat, outformat, check = 0, noout = 0, C = 0, ret = 1;
- char *infile, *outfile, *prog;
- char *inrand = NULL;
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT,
+ OPT_ENGINE, OPT_CHECK, OPT_TEXT, OPT_NOOUT,
+ OPT_RAND, OPT_DSAPARAM, OPT_C, OPT_2, OPT_5
+} OPTION_CHOICE;
+
+OPTIONS dhparam_options[] = {
+ {OPT_HELP_STR, 1, '-', "Usage: %s [flags] [numbits]\n"},
+ {OPT_HELP_STR, 1, '-', "Valid options are:\n"},
+ {"help", OPT_HELP, '-', "Display this summary"},
+ {"in", OPT_IN, '<', "Input file"},
+ {"inform", OPT_INFORM, 'F', "Input format, DER or PEM"},
+ {"outform", OPT_OUTFORM, 'F', "Output format, DER or PEM"},
+ {"out", OPT_OUT, '>', "Output file"},
+ {"check", OPT_CHECK, '-', "Check the DH parameters"},
+ {"text", OPT_TEXT, '-', "Print a text form of the DH parameters"},
+ {"noout", OPT_NOOUT, '-'},
+ {"rand", OPT_RAND, 's',
+ "Load the file(s) into the random number generator"},
+ {"C", OPT_C, '-', "Print C code"},
+ {"2", OPT_2, '-', "Generate parameters using 2 as the generator value"},
+ {"5", OPT_5, '-', "Generate parameters using 5 as the generator value"},
# ifndef OPENSSL_NO_ENGINE
- char *engine = NULL;
+ {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
# endif
- int num = 0, g = 0;
-
- 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);
-
- if (!load_config(bio_err, NULL))
- goto end;
-
- infile = NULL;
- outfile = NULL;
- informat = FORMAT_PEM;
- outformat = FORMAT_PEM;
-
- prog = argv[0];
- argc--;
- argv++;
- while (argc >= 1) {
- if (strcmp(*argv, "-inform") == 0) {
- if (--argc < 1)
- goto bad;
- informat = str2fmt(*(++argv));
- } else if (strcmp(*argv, "-outform") == 0) {
- if (--argc < 1)
- goto bad;
- outformat = str2fmt(*(++argv));
- } else if (strcmp(*argv, "-in") == 0) {
- if (--argc < 1)
- goto bad;
- infile = *(++argv);
- } else if (strcmp(*argv, "-out") == 0) {
- if (--argc < 1)
- goto bad;
- outfile = *(++argv);
- }
-# ifndef OPENSSL_NO_ENGINE
- else if (strcmp(*argv, "-engine") == 0) {
- if (--argc < 1)
- goto bad;
- engine = *(++argv);
- }
+# ifndef OPENSSL_NO_DSA
+ {"dsaparam", OPT_DSAPARAM, '-',
+ "Read or generate DSA parameters, convert to DH"},
# endif
- else if (strcmp(*argv, "-check") == 0)
+ {NULL}
+};
+
+int dhparam_main(int argc, char **argv)
+{
+ BIO *in = NULL, *out = NULL;
+ DH *dh = NULL;
+ char *infile = NULL, *outfile = NULL, *prog, *inrand = NULL;
+ int dsaparam = 0, i, text = 0, C = 0, ret = 1, num = 0, g = 0;
+ int informat = FORMAT_PEM, outformat = FORMAT_PEM, check = 0, noout = 0;
+ OPTION_CHOICE o;
+
+ prog = opt_init(argc, argv, dhparam_options);
+ while ((o = opt_next()) != OPT_EOF) {
+ switch (o) {
+ case OPT_EOF:
+ case OPT_ERR:
+ opthelp:
+ BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+ goto end;
+ case OPT_HELP:
+ opt_help(dhparam_options);
+ ret = 0;
+ goto end;
+ case OPT_INFORM:
+ if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
+ goto opthelp;
+ break;
+ case OPT_OUTFORM:
+ if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
+ goto opthelp;
+ break;
+ case OPT_IN:
+ infile = opt_arg();
+ break;
+ case OPT_OUT:
+ outfile = opt_arg();
+ break;
+ case OPT_ENGINE:
+ (void)setup_engine(opt_arg(), 0);
+ break;
+ case OPT_CHECK:
check = 1;
- else if (strcmp(*argv, "-text") == 0)
+ break;
+ case OPT_TEXT:
text = 1;
-# ifndef OPENSSL_NO_DSA
- else if (strcmp(*argv, "-dsaparam") == 0)
+ break;
+ case OPT_DSAPARAM:
dsaparam = 1;
-# endif
- else if (strcmp(*argv, "-C") == 0)
+ break;
+ case OPT_C:
C = 1;
- else if (strcmp(*argv, "-noout") == 0)
- noout = 1;
- else if (strcmp(*argv, "-2") == 0)
+ break;
+ case OPT_2:
g = 2;
- else if (strcmp(*argv, "-5") == 0)
+ break;
+ case OPT_5:
g = 5;
- else if (strcmp(*argv, "-rand") == 0) {
- if (--argc < 1)
- goto bad;
- inrand = *(++argv);
- } else if (((sscanf(*argv, "%d", &num) == 0) || (num <= 0)))
- goto bad;
- argv++;
- argc--;
+ break;
+ case OPT_NOOUT:
+ noout = 1;
+ break;
+ case OPT_RAND:
+ inrand = opt_arg();
+ break;
+ }
}
+ argc = opt_num_rest();
+ argv = opt_rest();
- if (badops) {
- bad:
- BIO_printf(bio_err, "%s [options] [numbits]\n", prog);
- BIO_printf(bio_err, "where options are\n");
- BIO_printf(bio_err, " -inform arg input format - one of DER PEM\n");
- BIO_printf(bio_err,
- " -outform arg output format - one of DER PEM\n");
- BIO_printf(bio_err, " -in arg input file\n");
- BIO_printf(bio_err, " -out arg output file\n");
-# ifndef OPENSSL_NO_DSA
- BIO_printf(bio_err,
- " -dsaparam read or generate DSA parameters, convert to DH\n");
-# endif
- BIO_printf(bio_err, " -check check the DH parameters\n");
- BIO_printf(bio_err,
- " -text print a text form of the DH parameters\n");
- BIO_printf(bio_err, " -C Output C code\n");
- BIO_printf(bio_err,
- " -2 generate parameters using 2 as the generator value\n");
- BIO_printf(bio_err,
- " -5 generate parameters using 5 as the generator value\n");
- BIO_printf(bio_err,
- " numbits number of bits in to generate (default 2048)\n");
-# ifndef OPENSSL_NO_ENGINE
- BIO_printf(bio_err,
- " -engine e use engine e, possibly a hardware device.\n");
-# endif
- 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");
- BIO_printf(bio_err, " -noout no output\n");
+ if (argv[0] && (!opt_int(argv[0], &num) || num <= 0))
goto end;
- }
-
- ERR_load_crypto_strings();
-
-# ifndef OPENSSL_NO_ENGINE
- setup_engine(bio_err, engine, 0);
-# endif
if (g && !num)
num = DEFBITS;
# ifndef OPENSSL_NO_DSA
- if (dsaparam) {
- if (g) {
- BIO_printf(bio_err,
- "generator may not be chosen for DSA parameters\n");
- goto end;
- }
- } else
-# endif
- {
- /* DH parameters */
- if (num && !g)
- g = 2;
+ if (dsaparam && g) {
+ BIO_printf(bio_err,
+ "generator may not be chosen for DSA parameters\n");
+ goto end;
}
+# endif
+ /* DH parameters */
+ if (num && !g)
+ g = 2;
if (num) {
}
BN_GENCB_set(cb, dh_cb, bio_err);
- if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL) {
+ if (!app_RAND_load_file(NULL, 1) && inrand == NULL) {
BIO_printf(bio_err,
"warning, not much extra random data, consider using the -rand option\n");
}
}
BN_GENCB_free(cb);
- app_RAND_write_file(NULL, bio_err);
+ app_RAND_write_file(NULL);
} else {
- in = BIO_new(BIO_s_file());
- if (in == NULL) {
- ERR_print_errors(bio_err);
+ in = bio_open_default(infile, RB(informat));
+ if (in == NULL)
goto end;
- }
- if (infile == NULL)
- BIO_set_fp(in, stdin, BIO_NOCLOSE);
- else {
- if (BIO_read_filename(in, infile) <= 0) {
- perror(infile);
- goto end;
- }
- }
- if (informat != FORMAT_ASN1 && informat != FORMAT_PEM) {
- BIO_printf(bio_err, "bad input format specified\n");
- goto end;
- }
# ifndef OPENSSL_NO_DSA
if (dsaparam) {
DSA *dsa;
/* dh != NULL */
}
- out = BIO_new(BIO_s_file());
- if (out == NULL) {
- ERR_print_errors(bio_err);
+ out = bio_open_default(outfile, "w");
+ if (out == NULL)
goto end;
- }
- if (outfile == NULL) {
- BIO_set_fp(out, stdout, BIO_NOCLOSE);
-# ifdef OPENSSL_SYS_VMS
- {
- BIO *tmpbio = BIO_new(BIO_f_linebuffer());
- out = BIO_push(tmpbio, out);
- }
-# endif
- } else {
- if (BIO_write_filename(out, outfile) <= 0) {
- perror(outfile);
- goto end;
- }
- }
if (text) {
DHparams_print(out, dh);
}
if (C) {
unsigned char *data;
- int len, l, bits;
+ int len, bits;
len = BN_num_bytes(dh->p);
bits = BN_num_bits(dh->p);
- data = (unsigned char *)OPENSSL_malloc(len);
- if (data == NULL) {
- perror("OPENSSL_malloc");
- goto end;
- }
- printf("#ifndef HEADER_DH_H\n"
- "#include <openssl/dh.h>\n" "#endif\n");
- printf("DH *get_dh%d()\n\t{\n", bits);
-
- l = BN_bn2bin(dh->p, data);
- printf("\tstatic unsigned char dh%d_p[]={", bits);
- for (i = 0; i < l; i++) {
- if ((i % 12) == 0)
- printf("\n\t\t");
- printf("0x%02X,", data[i]);
- }
- printf("\n\t\t};\n");
-
- l = BN_bn2bin(dh->g, data);
- printf("\tstatic unsigned char dh%d_g[]={", bits);
- for (i = 0; i < l; i++) {
- if ((i % 12) == 0)
- printf("\n\t\t");
- printf("0x%02X,", data[i]);
- }
- printf("\n\t\t};\n");
-
- printf("\tDH *dh;\n\n");
- printf("\tif ((dh=DH_new()) == NULL) return(NULL);\n");
- printf("\tdh->p=BN_bin2bn(dh%d_p,sizeof(dh%d_p),NULL);\n",
+ data = app_malloc(len, "print a BN");
+ BIO_printf(out, "#ifndef HEADER_DH_H\n"
+ "# include <openssl/dh.h>\n"
+ "#endif\n"
+ "\n");
+ BIO_printf(out, "DH *get_dh%d()\n{\n", bits);
+ print_bignum_var(out, dh->p, "dhp", bits, data);
+ print_bignum_var(out, dh->g, "dhg", bits, data);
+ BIO_printf(out, " DH *dh = DN_new();\n"
+ "\n"
+ " if (dh == NULL)\n"
+ " return NULL;\n");
+ BIO_printf(out, " dh->p = BN_bin2bn(dhp_%d, sizeof (dhp_%d), NULL);\n",
bits, bits);
- printf("\tdh->g=BN_bin2bn(dh%d_g,sizeof(dh%d_g),NULL);\n",
+ BIO_printf(out, " dh->g = BN_bin2bn(dhg_%d, sizeof (dhg_%d), NULL);\n",
bits, bits);
- printf("\tif ((dh->p == NULL) || (dh->g == NULL))\n");
- printf("\t\t{ DH_free(dh); return(NULL); }\n");
+ BIO_printf(out, " if (!dh->p || !dh->g) {\n"
+ " DH_free(dh);\n"
+ " return NULL;\n"
+ " }\n");
if (dh->length)
- printf("\tdh->length = %ld;\n", dh->length);
- printf("\treturn(dh);\n\t}\n");
+ BIO_printf(out,
+ " dh->length = %ld;\n", dh->length);
+ BIO_printf(out, " return dh;\n}\n");
OPENSSL_free(data);
}
if (!noout) {
if (outformat == FORMAT_ASN1)
i = i2d_DHparams_bio(out, dh);
- else if (outformat == FORMAT_PEM) {
- if (dh->q)
- i = PEM_write_bio_DHxparams(out, dh);
- else
- i = PEM_write_bio_DHparams(out, dh);
- } else {
- BIO_printf(bio_err, "bad output format specified for outfile\n");
- goto end;
- }
+ else if (dh->q)
+ i = PEM_write_bio_DHxparams(out, dh);
+ else
+ i = PEM_write_bio_DHparams(out, dh);
if (!i) {
BIO_printf(bio_err, "unable to write DH parameters\n");
ERR_print_errors(bio_err);
BIO_free(in);
BIO_free_all(out);
DH_free(dh);
- apps_shutdown();
- OPENSSL_EXIT(ret);
+ return (ret);
}
-/* dh_cb is identical to dsa_cb in apps/dsaparam.c */
static int dh_cb(int p, int n, BN_GENCB *cb)
{
char c = '*';
projects / openssl.git / blobdiff