apps/nseq.c

   1 /*
   2  * Copyright 1999-2018 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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     {"help", OPT_HELP, '-', "Display this summary"},
  24     {"toseq", OPT_TOSEQ, '-', "Output NS Sequence file"},
  25     {"in", OPT_IN, '<', "Input file"},
  26     {"out", OPT_OUT, '>', "Output file"},
  27     {NULL}
  28 };
  29
  30 int nseq_main(int argc, char **argv)
  31 {
  32     BIO *in = NULL, *out = NULL;
  33     X509 *x509 = NULL;
  34     NETSCAPE_CERT_SEQUENCE *seq = NULL;
  35     OPTION_CHOICE o;
  36     int toseq = 0, ret = 1, i;
  37     char *infile = NULL, *outfile = NULL, *prog;
  38
  39     prog = opt_init(argc, argv, nseq_options);
  40     while ((o = opt_next()) != OPT_EOF) {
  41         switch (o) {
  42         case OPT_EOF:
  43         case OPT_ERR:
  44  opthelp:
  45             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
  46             goto end;
  47         case OPT_HELP:
  48             ret = 0;
  49             opt_help(nseq_options);
  50             goto end;
  51         case OPT_TOSEQ:
  52             toseq = 1;
  53             break;
  54         case OPT_IN:
  55             infile = opt_arg();
  56             break;
  57         case OPT_OUT:
  58             outfile = opt_arg();
  59             break;
  60         }
  61     }
  62     argc = opt_num_rest();
  63     if (argc != 0)
  64         goto opthelp;
  65
  66     in = bio_open_default(infile, 'r', FORMAT_PEM);
  67     if (in == NULL)
  68         goto end;
  69     out = bio_open_default(outfile, 'w', FORMAT_PEM);
  70     if (out == NULL)
  71         goto end;
  72
  73     if (toseq) {
  74         seq = NETSCAPE_CERT_SEQUENCE_new();
  75         if (seq == NULL)
  76             goto end;
  77         seq->certs = sk_X509_new_null();
  78         if (seq->certs == NULL)
  79             goto end;
  80         while ((x509 = PEM_read_bio_X509(in, NULL, NULL, NULL)))
  81             sk_X509_push(seq->certs, x509);
  82
  83         if (!sk_X509_num(seq->certs)) {
  84             BIO_printf(bio_err, "%s: Error reading certs file %s\n",
  85                        prog, infile);
  86             ERR_print_errors(bio_err);
  87             goto end;
  88         }
  89         PEM_write_bio_NETSCAPE_CERT_SEQUENCE(out, seq);
  90         ret = 0;
  91         goto end;
  92     }
  93
  94     seq = PEM_read_bio_NETSCAPE_CERT_SEQUENCE(in, NULL, NULL, NULL);
  95     if (seq == NULL) {
  96         BIO_printf(bio_err, "%s: Error reading sequence file %s\n",
  97                    prog, infile);
  98         ERR_print_errors(bio_err);
  99         goto end;
 100     }
 101
 102     for (i = 0; i < sk_X509_num(seq->certs); i++) {
 103         x509 = sk_X509_value(seq->certs, i);
 104         dump_cert_text(out, x509);
 105         PEM_write_bio_X509(out, x509);
 106     }
 107     ret = 0;
 108  end:
 109     BIO_free(in);
 110     BIO_free_all(out);
 111     NETSCAPE_CERT_SEQUENCE_free(seq);
 112
 113     return ret;
 114 }