apps/nseq.c

   1 /*
   2  * Copyright 1999-2020 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include "apps.h"
  13 #include "progs.h"
  14 #include <openssl/pem.h>
  15 #include <openssl/err.h>
  16
  17 DEFINE_STACK_OF(X509)
  18
  19 typedef enum OPTION_choice {
  20     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  21     OPT_TOSEQ, OPT_IN, OPT_OUT,
  22     OPT_PROV_ENUM
  23 } OPTION_CHOICE;
  24
  25 const OPTIONS nseq_options[] = {
  26     OPT_SECTION("General"),
  27     {"help", OPT_HELP, '-', "Display this summary"},
  28
  29     OPT_SECTION("Input"),
  30     {"in", OPT_IN, '<', "Input file"},
  31
  32     OPT_SECTION("Output"),
  33     {"toseq", OPT_TOSEQ, '-', "Output NS Sequence file"},
  34     {"out", OPT_OUT, '>', "Output file"},
  35
  36     OPT_PROV_OPTIONS,
  37     {NULL}
  38 };
  39
  40 int nseq_main(int argc, char **argv)
  41 {
  42     BIO *in = NULL, *out = NULL;
  43     X509 *x509 = NULL;
  44     NETSCAPE_CERT_SEQUENCE *seq = NULL;
  45     OPTION_CHOICE o;
  46     int toseq = 0, ret = 1, i;
  47     char *infile = NULL, *outfile = NULL, *prog;
  48
  49     prog = opt_init(argc, argv, nseq_options);
  50     while ((o = opt_next()) != OPT_EOF) {
  51         switch (o) {
  52         case OPT_EOF:
  53         case OPT_ERR:
  54  opthelp:
  55             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
  56             goto end;
  57         case OPT_HELP:
  58             ret = 0;
  59             opt_help(nseq_options);
  60             goto end;
  61         case OPT_TOSEQ:
  62             toseq = 1;
  63             break;
  64         case OPT_IN:
  65             infile = opt_arg();
  66             break;
  67         case OPT_OUT:
  68             outfile = opt_arg();
  69             break;
  70         case OPT_PROV_CASES:
  71             if (!opt_provider(o))
  72                 goto end;
  73             break;
  74         }
  75     }
  76     argc = opt_num_rest();
  77     if (argc != 0)
  78         goto opthelp;
  79
  80     in = bio_open_default(infile, 'r', FORMAT_PEM);
  81     if (in == NULL)
  82         goto end;
  83     out = bio_open_default(outfile, 'w', FORMAT_PEM);
  84     if (out == NULL)
  85         goto end;
  86
  87     if (toseq) {
  88         seq = NETSCAPE_CERT_SEQUENCE_new();
  89         if (seq == NULL)
  90             goto end;
  91         seq->certs = sk_X509_new_null();
  92         if (seq->certs == NULL)
  93             goto end;
  94         while ((x509 = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
  95             if (!sk_X509_push(seq->certs, x509))
  96                 goto end;
  97         }
  98
  99         if (!sk_X509_num(seq->certs)) {
 100             BIO_printf(bio_err, "%s: Error reading certs file %s\n",
 101                        prog, infile);
 102             ERR_print_errors(bio_err);
 103             goto end;
 104         }
 105         PEM_write_bio_NETSCAPE_CERT_SEQUENCE(out, seq);
 106         ret = 0;
 107         goto end;
 108     }
 109
 110     seq = PEM_read_bio_NETSCAPE_CERT_SEQUENCE(in, NULL, NULL, NULL);
 111     if (seq == NULL) {
 112         BIO_printf(bio_err, "%s: Error reading sequence file %s\n",
 113                    prog, infile);
 114         ERR_print_errors(bio_err);
 115         goto end;
 116     }
 117
 118     for (i = 0; i < sk_X509_num(seq->certs); i++) {
 119         x509 = sk_X509_value(seq->certs, i);
 120         dump_cert_text(out, x509);
 121         PEM_write_bio_X509(out, x509);
 122     }
 123     ret = 0;
 124  end:
 125     BIO_free(in);
 126     BIO_free_all(out);
 127     NETSCAPE_CERT_SEQUENCE_free(seq);
 128
 129     return ret;
 130 }