apps/nseq.c

   1 /*
   2  * Copyright 1999-2018 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 typedef enum OPTION_choice {
  18     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  19     OPT_TOSEQ, OPT_IN, OPT_OUT
  20 } OPTION_CHOICE;
  21
  22 const OPTIONS nseq_options[] = {
  23     OPT_SECTION("General"),
  24     {"help", OPT_HELP, '-', "Display this summary"},
  25
  26     OPT_SECTION("Input"),
  27     {"in", OPT_IN, '<', "Input file"},
  28
  29     OPT_SECTION("Output"),
  30     {"toseq", OPT_TOSEQ, '-', "Output NS Sequence file"},
  31     {"out", OPT_OUT, '>', "Output file"},
  32     {NULL}
  33 };
  34
  35 int nseq_main(int argc, char **argv)
  36 {
  37     BIO *in = NULL, *out = NULL;
  38     X509 *x509 = NULL;
  39     NETSCAPE_CERT_SEQUENCE *seq = NULL;
  40     OPTION_CHOICE o;
  41     int toseq = 0, ret = 1, i;
  42     char *infile = NULL, *outfile = NULL, *prog;
  43
  44     prog = opt_init(argc, argv, nseq_options);
  45     while ((o = opt_next()) != OPT_EOF) {
  46         switch (o) {
  47         case OPT_EOF:
  48         case OPT_ERR:
  49  opthelp:
  50             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
  51             goto end;
  52         case OPT_HELP:
  53             ret = 0;
  54             opt_help(nseq_options);
  55             goto end;
  56         case OPT_TOSEQ:
  57             toseq = 1;
  58             break;
  59         case OPT_IN:
  60             infile = opt_arg();
  61             break;
  62         case OPT_OUT:
  63             outfile = opt_arg();
  64             break;
  65         }
  66     }
  67     argc = opt_num_rest();
  68     if (argc != 0)
  69         goto opthelp;
  70
  71     in = bio_open_default(infile, 'r', FORMAT_PEM);
  72     if (in == NULL)
  73         goto end;
  74     out = bio_open_default(outfile, 'w', FORMAT_PEM);
  75     if (out == NULL)
  76         goto end;
  77
  78     if (toseq) {
  79         seq = NETSCAPE_CERT_SEQUENCE_new();
  80         if (seq == NULL)
  81             goto end;
  82         seq->certs = sk_X509_new_null();
  83         if (seq->certs == NULL)
  84             goto end;
  85         while ((x509 = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
  86             if (!sk_X509_push(seq->certs, x509))
  87                 goto end;
  88         }
  89
  90         if (!sk_X509_num(seq->certs)) {
  91             BIO_printf(bio_err, "%s: Error reading certs file %s\n",
  92                        prog, infile);
  93             ERR_print_errors(bio_err);
  94             goto end;
  95         }
  96         PEM_write_bio_NETSCAPE_CERT_SEQUENCE(out, seq);
  97         ret = 0;
  98         goto end;
  99     }
 100
 101     seq = PEM_read_bio_NETSCAPE_CERT_SEQUENCE(in, NULL, NULL, NULL);
 102     if (seq == NULL) {
 103         BIO_printf(bio_err, "%s: Error reading sequence file %s\n",
 104                    prog, infile);
 105         ERR_print_errors(bio_err);
 106         goto end;
 107     }
 108
 109     for (i = 0; i < sk_X509_num(seq->certs); i++) {
 110         x509 = sk_X509_value(seq->certs, i);
 111         dump_cert_text(out, x509);
 112         PEM_write_bio_X509(out, x509);
 113     }
 114     ret = 0;
 115  end:
 116     BIO_free(in);
 117     BIO_free_all(out);
 118     NETSCAPE_CERT_SEQUENCE_free(seq);
 119
 120     return ret;
 121 }