1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
57 #include <openssl/asn1.h>
59 #include <openssl/err.h>
60 #include <openssl/mem.h>
64 int i2a_ASN1_STRING(BIO *bp, ASN1_STRING *a, int type)
67 static const char *h="0123456789ABCDEF";
70 if (a == NULL) return(0);
74 if (BIO_write(bp,"0",1) != 1) goto err;
79 for (i=0; i<a->length; i++)
81 if ((i != 0) && (i%35 == 0))
83 if (BIO_write(bp,"\\\n",2) != 2) goto err;
86 buf[0]=h[((unsigned char)a->data[i]>>4)&0x0f];
87 buf[1]=h[((unsigned char)a->data[i] )&0x0f];
88 if (BIO_write(bp,buf,2) != 2) goto err;
97 int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size)
100 int i,j,k,m,n,again,bufsize;
101 unsigned char *s=NULL,*sp;
103 int num=0,slen=0,first=1;
105 bufsize=BIO_gets(bp,buf,size);
118 if (buf[i-1] == '\n') buf[--i]='\0';
119 if (i == 0) goto err_sl;
120 if (buf[i-1] == '\r') buf[--i]='\0';
121 if (i == 0) goto err_sl;
122 again=(buf[i-1] == '\\');
124 for (j=i-1; j>0; j--)
126 if (!( ((buf[j] >= '0') && (buf[j] <= '9')) ||
127 ((buf[j] >= 'a') && (buf[j] <= 'f')) ||
128 ((buf[j] >= 'A') && (buf[j] <= 'F'))))
135 /* We have now cleared all the crap off the end of the
137 if (i < 2) goto err_sl;
139 bufp=(unsigned char *)buf;
145 OPENSSL_PUT_ERROR(ASN1, a2i_ASN1_STRING, ASN1_R_ODD_NUMBER_OF_CHARS);
152 sp=(unsigned char *)OPENSSL_malloc(
153 (unsigned int)num+i*2);
155 sp=(unsigned char *)OPENSSL_realloc(s,
156 (unsigned int)num+i*2);
159 OPENSSL_PUT_ERROR(ASN1, a2i_ASN1_STRING, ERR_R_MALLOC_FAILURE);
160 if (s != NULL) OPENSSL_free(s);
166 for (j=0; j<i; j++,k+=2)
171 if ((m >= '0') && (m <= '9'))
173 else if ((m >= 'a') && (m <= 'f'))
175 else if ((m >= 'A') && (m <= 'F'))
179 OPENSSL_PUT_ERROR(ASN1, a2i_ASN1_STRING, ASN1_R_NON_HEX_CHARACTERS);
188 bufsize=BIO_gets(bp,buf,size);
199 OPENSSL_PUT_ERROR(ASN1, a2i_ASN1_STRING, ASN1_R_SHORT_LINE);