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Member "openssl-1.0.2q/crypto/asn1/a_i2d_fp.c" (20 Nov 2018, 5175 Bytes) of package /linux/misc/openssl-1.0.2q.tar.gz:


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    1 /* crypto/asn1/a_i2d_fp.c */
    2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
    3  * All rights reserved.
    4  *
    5  * This package is an SSL implementation written
    6  * by Eric Young (eay@cryptsoft.com).
    7  * The implementation was written so as to conform with Netscapes SSL.
    8  *
    9  * This library is free for commercial and non-commercial use as long as
   10  * the following conditions are aheared to.  The following conditions
   11  * apply to all code found in this distribution, be it the RC4, RSA,
   12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
   13  * included with this distribution is covered by the same copyright terms
   14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
   15  *
   16  * Copyright remains Eric Young's, and as such any Copyright notices in
   17  * the code are not to be removed.
   18  * If this package is used in a product, Eric Young should be given attribution
   19  * as the author of the parts of the library used.
   20  * This can be in the form of a textual message at program startup or
   21  * in documentation (online or textual) provided with the package.
   22  *
   23  * Redistribution and use in source and binary forms, with or without
   24  * modification, are permitted provided that the following conditions
   25  * are met:
   26  * 1. Redistributions of source code must retain the copyright
   27  *    notice, this list of conditions and the following disclaimer.
   28  * 2. Redistributions in binary form must reproduce the above copyright
   29  *    notice, this list of conditions and the following disclaimer in the
   30  *    documentation and/or other materials provided with the distribution.
   31  * 3. All advertising materials mentioning features or use of this software
   32  *    must display the following acknowledgement:
   33  *    "This product includes cryptographic software written by
   34  *     Eric Young (eay@cryptsoft.com)"
   35  *    The word 'cryptographic' can be left out if the rouines from the library
   36  *    being used are not cryptographic related :-).
   37  * 4. If you include any Windows specific code (or a derivative thereof) from
   38  *    the apps directory (application code) you must include an acknowledgement:
   39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
   40  *
   41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
   42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   51  * SUCH DAMAGE.
   52  *
   53  * The licence and distribution terms for any publically available version or
   54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
   55  * copied and put under another distribution licence
   56  * [including the GNU Public Licence.]
   57  */
   58 
   59 #include <stdio.h>
   60 #include "cryptlib.h"
   61 #include <openssl/buffer.h>
   62 #include <openssl/asn1.h>
   63 
   64 #ifndef NO_OLD_ASN1
   65 
   66 # ifndef OPENSSL_NO_FP_API
   67 int ASN1_i2d_fp(i2d_of_void *i2d, FILE *out, void *x)
   68 {
   69     BIO *b;
   70     int ret;
   71 
   72     if ((b = BIO_new(BIO_s_file())) == NULL) {
   73         ASN1err(ASN1_F_ASN1_I2D_FP, ERR_R_BUF_LIB);
   74         return (0);
   75     }
   76     BIO_set_fp(b, out, BIO_NOCLOSE);
   77     ret = ASN1_i2d_bio(i2d, b, x);
   78     BIO_free(b);
   79     return (ret);
   80 }
   81 # endif
   82 
   83 int ASN1_i2d_bio(i2d_of_void *i2d, BIO *out, unsigned char *x)
   84 {
   85     char *b;
   86     unsigned char *p;
   87     int i, j = 0, n, ret = 1;
   88 
   89     n = i2d(x, NULL);
   90     if (n <= 0)
   91         return 0;
   92 
   93     b = (char *)OPENSSL_malloc(n);
   94     if (b == NULL) {
   95         ASN1err(ASN1_F_ASN1_I2D_BIO, ERR_R_MALLOC_FAILURE);
   96         return (0);
   97     }
   98 
   99     p = (unsigned char *)b;
  100     i2d(x, &p);
  101 
  102     for (;;) {
  103         i = BIO_write(out, &(b[j]), n);
  104         if (i == n)
  105             break;
  106         if (i <= 0) {
  107             ret = 0;
  108             break;
  109         }
  110         j += i;
  111         n -= i;
  112     }
  113     OPENSSL_free(b);
  114     return (ret);
  115 }
  116 
  117 #endif
  118 
  119 #ifndef OPENSSL_NO_FP_API
  120 int ASN1_item_i2d_fp(const ASN1_ITEM *it, FILE *out, void *x)
  121 {
  122     BIO *b;
  123     int ret;
  124 
  125     if ((b = BIO_new(BIO_s_file())) == NULL) {
  126         ASN1err(ASN1_F_ASN1_ITEM_I2D_FP, ERR_R_BUF_LIB);
  127         return (0);
  128     }
  129     BIO_set_fp(b, out, BIO_NOCLOSE);
  130     ret = ASN1_item_i2d_bio(it, b, x);
  131     BIO_free(b);
  132     return (ret);
  133 }
  134 #endif
  135 
  136 int ASN1_item_i2d_bio(const ASN1_ITEM *it, BIO *out, void *x)
  137 {
  138     unsigned char *b = NULL;
  139     int i, j = 0, n, ret = 1;
  140 
  141     n = ASN1_item_i2d(x, &b, it);
  142     if (b == NULL) {
  143         ASN1err(ASN1_F_ASN1_ITEM_I2D_BIO, ERR_R_MALLOC_FAILURE);
  144         return (0);
  145     }
  146 
  147     for (;;) {
  148         i = BIO_write(out, &(b[j]), n);
  149         if (i == n)
  150             break;
  151         if (i <= 0) {
  152             ret = 0;
  153             break;
  154         }
  155         j += i;
  156         n -= i;
  157     }
  158     OPENSSL_free(b);
  159     return (ret);
  160 }