1/* crypto/x509/x509_obj.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#include <string.h>
59
60#include <openssl/buf.h>
61#include <openssl/err.h>
62#include <openssl/lhash.h>
63#include <openssl/mem.h>
64#include <openssl/obj.h>
65#include <openssl/x509.h>
66
67
68char *X509_NAME_oneline(X509_NAME *a, char *buf, int len)
69	{
70	X509_NAME_ENTRY *ne;
71	size_t i;
72	int n,lold,l,l1,l2,num,j,type;
73	const char *s;
74	char *p;
75	unsigned char *q;
76	BUF_MEM *b=NULL;
77	static const char hex[17]="0123456789ABCDEF";
78	int gs_doit[4];
79	char tmp_buf[80];
80
81	if (buf == NULL)
82		{
83		if ((b=BUF_MEM_new()) == NULL) goto err;
84		if (!BUF_MEM_grow(b,200)) goto err;
85		b->data[0]='\0';
86		len=200;
87		}
88	if (a == NULL)
89	    {
90	    if(b)
91		{
92		buf=b->data;
93		OPENSSL_free(b);
94		}
95	    strncpy(buf,"NO X509_NAME",len);
96	    buf[len-1]='\0';
97	    return buf;
98	    }
99
100	len--; /* space for '\0' */
101	l=0;
102	for (i=0; i<sk_X509_NAME_ENTRY_num(a->entries); i++)
103		{
104		ne=sk_X509_NAME_ENTRY_value(a->entries,i);
105		n=OBJ_obj2nid(ne->object);
106		if ((n == NID_undef) || ((s=OBJ_nid2sn(n)) == NULL))
107			{
108			i2t_ASN1_OBJECT(tmp_buf,sizeof(tmp_buf),ne->object);
109			s=tmp_buf;
110			}
111		l1=strlen(s);
112
113		type=ne->value->type;
114		num=ne->value->length;
115		q=ne->value->data;
116
117		if ((type == V_ASN1_GENERALSTRING) && ((num%4) == 0))
118			{
119			gs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=0;
120			for (j=0; j<num; j++)
121				if (q[j] != 0) gs_doit[j&3]=1;
122
123			if (gs_doit[0]|gs_doit[1]|gs_doit[2])
124				gs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=1;
125			else
126				{
127				gs_doit[0]=gs_doit[1]=gs_doit[2]=0;
128				gs_doit[3]=1;
129				}
130			}
131		else
132			gs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=1;
133
134		for (l2=j=0; j<num; j++)
135			{
136			if (!gs_doit[j&3]) continue;
137			l2++;
138			if ((q[j] < ' ') || (q[j] > '~')) l2+=3;
139			}
140
141		lold=l;
142		l+=1+l1+1+l2;
143		if (b != NULL)
144			{
145			if (!BUF_MEM_grow(b,l+1)) goto err;
146			p= &(b->data[lold]);
147			}
148		else if (l > len)
149			{
150			break;
151			}
152		else
153			p= &(buf[lold]);
154		*(p++)='/';
155		memcpy(p,s,(unsigned int)l1); p+=l1;
156		*(p++)='=';
157
158		q=ne->value->data;
159
160		for (j=0; j<num; j++)
161			{
162			if (!gs_doit[j&3]) continue;
163			n=q[j];
164			if ((n < ' ') || (n > '~'))
165				{
166				*(p++)='\\';
167				*(p++)='x';
168				*(p++)=hex[(n>>4)&0x0f];
169				*(p++)=hex[n&0x0f];
170				}
171			else
172				*(p++)=n;
173			}
174		*p='\0';
175		}
176	if (b != NULL)
177		{
178		p=b->data;
179		OPENSSL_free(b);
180		}
181	else
182		p=buf;
183	if (i == 0)
184		*p = '\0';
185	return(p);
186err:
187	OPENSSL_PUT_ERROR(X509, X509_NAME_oneline, ERR_R_MALLOC_FAILURE);
188	if (b != NULL) BUF_MEM_free(b);
189	return(NULL);
190	}
191
192