mirror of
https://github.com/oxen-io/session-android.git
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227 lines
6.4 KiB
C
227 lines
6.4 KiB
C
/* crypto/x509/x509_obj.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/lhash.h>
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#include <openssl/objects.h>
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#include <openssl/x509.h>
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#include <openssl/buffer.h>
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char *X509_NAME_oneline(X509_NAME *a, char *buf, int len)
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{
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X509_NAME_ENTRY *ne;
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int i;
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int n,lold,l,l1,l2,num,j,type;
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const char *s;
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char *p;
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unsigned char *q;
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BUF_MEM *b=NULL;
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static const char hex[17]="0123456789ABCDEF";
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int gs_doit[4];
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char tmp_buf[80];
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#ifdef CHARSET_EBCDIC
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char ebcdic_buf[1024];
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#endif
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if (buf == NULL)
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{
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if ((b=BUF_MEM_new()) == NULL) goto err;
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if (!BUF_MEM_grow(b,200)) goto err;
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b->data[0]='\0';
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len=200;
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}
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if (a == NULL)
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{
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if(b)
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{
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buf=b->data;
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OPENSSL_free(b);
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}
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strncpy(buf,"NO X509_NAME",len);
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buf[len-1]='\0';
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return buf;
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}
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len--; /* space for '\0' */
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l=0;
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for (i=0; i<sk_X509_NAME_ENTRY_num(a->entries); i++)
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{
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ne=sk_X509_NAME_ENTRY_value(a->entries,i);
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n=OBJ_obj2nid(ne->object);
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if ((n == NID_undef) || ((s=OBJ_nid2sn(n)) == NULL))
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{
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i2t_ASN1_OBJECT(tmp_buf,sizeof(tmp_buf),ne->object);
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s=tmp_buf;
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}
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l1=strlen(s);
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type=ne->value->type;
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num=ne->value->length;
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q=ne->value->data;
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#ifdef CHARSET_EBCDIC
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if (type == V_ASN1_GENERALSTRING ||
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type == V_ASN1_VISIBLESTRING ||
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type == V_ASN1_PRINTABLESTRING ||
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type == V_ASN1_TELETEXSTRING ||
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type == V_ASN1_VISIBLESTRING ||
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type == V_ASN1_IA5STRING) {
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ascii2ebcdic(ebcdic_buf, q,
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(num > sizeof ebcdic_buf)
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? sizeof ebcdic_buf : num);
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q=ebcdic_buf;
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}
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#endif
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if ((type == V_ASN1_GENERALSTRING) && ((num%4) == 0))
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{
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gs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=0;
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for (j=0; j<num; j++)
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if (q[j] != 0) gs_doit[j&3]=1;
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if (gs_doit[0]|gs_doit[1]|gs_doit[2])
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gs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=1;
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else
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{
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gs_doit[0]=gs_doit[1]=gs_doit[2]=0;
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gs_doit[3]=1;
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}
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}
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else
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gs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=1;
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for (l2=j=0; j<num; j++)
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{
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if (!gs_doit[j&3]) continue;
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l2++;
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#ifndef CHARSET_EBCDIC
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if ((q[j] < ' ') || (q[j] > '~')) l2+=3;
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#else
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if ((os_toascii[q[j]] < os_toascii[' ']) ||
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(os_toascii[q[j]] > os_toascii['~'])) l2+=3;
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#endif
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}
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lold=l;
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l+=1+l1+1+l2;
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if (b != NULL)
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{
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if (!BUF_MEM_grow(b,l+1)) goto err;
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p= &(b->data[lold]);
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}
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else if (l > len)
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{
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break;
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}
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else
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p= &(buf[lold]);
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*(p++)='/';
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memcpy(p,s,(unsigned int)l1); p+=l1;
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*(p++)='=';
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#ifndef CHARSET_EBCDIC /* q was assigned above already. */
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q=ne->value->data;
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#endif
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for (j=0; j<num; j++)
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{
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if (!gs_doit[j&3]) continue;
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#ifndef CHARSET_EBCDIC
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n=q[j];
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if ((n < ' ') || (n > '~'))
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{
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*(p++)='\\';
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*(p++)='x';
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*(p++)=hex[(n>>4)&0x0f];
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*(p++)=hex[n&0x0f];
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}
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else
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*(p++)=n;
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#else
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n=os_toascii[q[j]];
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if ((n < os_toascii[' ']) ||
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(n > os_toascii['~']))
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{
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*(p++)='\\';
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*(p++)='x';
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*(p++)=hex[(n>>4)&0x0f];
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*(p++)=hex[n&0x0f];
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}
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else
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*(p++)=q[j];
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#endif
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}
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*p='\0';
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}
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if (b != NULL)
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{
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p=b->data;
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OPENSSL_free(b);
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}
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else
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p=buf;
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if (i == 0)
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*p = '\0';
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return(p);
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err:
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X509err(X509_F_X509_NAME_ONELINE,ERR_R_MALLOC_FAILURE);
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if (b != NULL) BUF_MEM_free(b);
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return(NULL);
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}
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