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      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 }
    115