1 /* crypto/asn1/f_enum.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
64 /* Based on a_int.c: equivalent ENUMERATED functions */
66 int i2a_ASN1_ENUMERATED(bp, a)
71 static char *h="0123456789ABCDEF";
74 if (a == NULL) return(0);
78 if (BIO_write(bp,"00",2) != 2) goto err;
83 for (i=0; i<a->length; i++)
85 if ((i != 0) && (i%35 == 0))
87 if (BIO_write(bp,"\\\n",2) != 2) goto err;
90 buf[0]=h[((unsigned char)a->data[i]>>4)&0x0f];
91 buf[1]=h[((unsigned char)a->data[i] )&0x0f];
92 if (BIO_write(bp,buf,2) != 2) goto err;
101 int a2i_ASN1_ENUMERATED(bp,bs,buf,size)
108 int i,j,k,m,n,again,bufsize;
109 unsigned char *s=NULL,*sp;
111 int num=0,slen=0,first=1;
113 bs->type=V_ASN1_ENUMERATED;
115 bufsize=BIO_gets(bp,buf,size);
118 if (bufsize < 1) goto err_sl;
120 if (buf[i-1] == '\n') buf[--i]='\0';
121 if (i == 0) goto err_sl;
122 if (buf[i-1] == '\r') buf[--i]='\0';
123 if (i == 0) goto err_sl;
124 again=(buf[i-1] == '\\');
128 if (!( ((buf[j] >= '0') && (buf[j] <= '9')) ||
129 ((buf[j] >= 'a') && (buf[j] <= 'f')) ||
130 ((buf[j] >= 'A') && (buf[j] <= 'F'))))
137 /* We have now cleared all the crap off the end of the
139 if (i < 2) goto err_sl;
141 bufp=(unsigned char *)buf;
145 if ((bufp[0] == '0') && (buf[1] == '0'))
155 ASN1err(ASN1_F_A2I_ASN1_ENUMERATED,ASN1_R_ODD_NUMBER_OF_CHARS);
162 sp=(unsigned char *)Malloc(
163 (unsigned int)num+i*2);
165 sp=(unsigned char *)Realloc(s,
166 (unsigned int)num+i*2);
169 ASN1err(ASN1_F_A2I_ASN1_ENUMERATED,ERR_R_MALLOC_FAILURE);
170 if (s != NULL) Free((char *)s);
176 for (j=0; j<i; j++,k+=2)
181 if ((m >= '0') && (m <= '9'))
183 else if ((m >= 'a') && (m <= 'f'))
185 else if ((m >= 'A') && (m <= 'F'))
189 ASN1err(ASN1_F_A2I_ASN1_ENUMERATED,ASN1_R_NON_HEX_CHARACTERS);
198 bufsize=BIO_gets(bp,buf,size);
209 ASN1err(ASN1_F_A2I_ASN1_ENUMERATED,ASN1_R_SHORT_LINE);