1 | /*
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2 | * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
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3 | *
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4 | * Licensed under the OpenSSL license (the "License"). You may not use
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5 | * this file except in compliance with the License. You can obtain a copy
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6 | * in the file LICENSE in the source distribution or at
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7 | * https://www.openssl.org/source/license.html
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8 | */
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9 |
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10 | #include <stdio.h>
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11 | #include <string.h>
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12 | #include "apps.h"
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13 | #include <openssl/pem.h>
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14 | #include <openssl/err.h>
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15 | #include <openssl/evp.h>
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16 |
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17 | typedef enum OPTION_choice {
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18 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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19 | OPT_IN, OPT_OUT, OPT_TEXT, OPT_NOOUT, OPT_ENGINE
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20 | } OPTION_CHOICE;
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21 |
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22 | OPTIONS pkeyparam_options[] = {
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23 | {"help", OPT_HELP, '-', "Display this summary"},
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24 | {"in", OPT_IN, '<', "Input file"},
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25 | {"out", OPT_OUT, '>', "Output file"},
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26 | {"text", OPT_TEXT, '-', "Print parameters as text"},
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27 | {"noout", OPT_NOOUT, '-', "Don't output encoded parameters"},
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28 | #ifndef OPENSSL_NO_ENGINE
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29 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
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30 | #endif
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31 | {NULL}
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32 | };
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33 |
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34 | int pkeyparam_main(int argc, char **argv)
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35 | {
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36 | ENGINE *e = NULL;
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37 | BIO *in = NULL, *out = NULL;
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38 | EVP_PKEY *pkey = NULL;
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39 | int text = 0, noout = 0, ret = 1;
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40 | OPTION_CHOICE o;
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41 | char *infile = NULL, *outfile = NULL, *prog;
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42 |
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43 | prog = opt_init(argc, argv, pkeyparam_options);
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44 | while ((o = opt_next()) != OPT_EOF) {
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45 | switch (o) {
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46 | case OPT_EOF:
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47 | case OPT_ERR:
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48 | opthelp:
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49 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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50 | goto end;
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51 | case OPT_HELP:
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52 | opt_help(pkeyparam_options);
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53 | ret = 0;
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54 | goto end;
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55 | case OPT_IN:
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56 | infile = opt_arg();
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57 | break;
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58 | case OPT_OUT:
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59 | outfile = opt_arg();
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60 | break;
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61 | case OPT_ENGINE:
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62 | e = setup_engine(opt_arg(), 0);
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63 | break;
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64 | case OPT_TEXT:
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65 | text = 1;
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66 | break;
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67 | case OPT_NOOUT:
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68 | noout = 1;
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69 | break;
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70 | }
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71 | }
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72 | argc = opt_num_rest();
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73 | if (argc != 0)
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74 | goto opthelp;
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75 |
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76 | in = bio_open_default(infile, 'r', FORMAT_PEM);
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77 | if (in == NULL)
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78 | goto end;
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79 | out = bio_open_default(outfile, 'w', FORMAT_PEM);
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80 | if (out == NULL)
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81 | goto end;
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82 | pkey = PEM_read_bio_Parameters(in, NULL);
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83 | if (!pkey) {
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84 | BIO_printf(bio_err, "Error reading parameters\n");
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85 | ERR_print_errors(bio_err);
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86 | goto end;
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87 | }
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88 |
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89 | if (!noout)
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90 | PEM_write_bio_Parameters(out, pkey);
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91 |
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92 | if (text)
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93 | EVP_PKEY_print_params(out, pkey, 0, NULL);
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94 |
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95 | ret = 0;
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96 |
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97 | end:
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98 | EVP_PKEY_free(pkey);
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99 | release_engine(e);
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100 | BIO_free_all(out);
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101 | BIO_free(in);
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102 |
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103 | return ret;
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104 | }
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