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.]
61 #include <openssl/buffer.h>
62 #include <openssl/asn1.h>
64 /* Based on a_int.c: equivalent ENUMERATED functions */
66 int i2a_ASN1_ENUMERATED(BIO
*bp
, ASN1_ENUMERATED
*a
)
69 static const char *h
="0123456789ABCDEF";
72 if (a
== NULL
) return(0);
76 if (BIO_write(bp
,"00",2) != 2) goto err
;
81 for (i
=0; i
<a
->length
; i
++)
83 if ((i
!= 0) && (i
%35 == 0))
85 if (BIO_write(bp
,"\\\n",2) != 2) goto err
;
88 buf
[0]=h
[((unsigned char)a
->data
[i
]>>4)&0x0f];
89 buf
[1]=h
[((unsigned char)a
->data
[i
] )&0x0f];
90 if (BIO_write(bp
,buf
,2) != 2) goto err
;
99 int a2i_ASN1_ENUMERATED(BIO
*bp
, ASN1_ENUMERATED
*bs
, char *buf
, int size
)
102 int i
,j
,k
,m
,n
,again
,bufsize
;
103 unsigned char *s
=NULL
,*sp
;
105 int num
=0,slen
=0,first
=1;
107 bs
->type
=V_ASN1_ENUMERATED
;
109 bufsize
=BIO_gets(bp
,buf
,size
);
112 if (bufsize
< 1) goto err_sl
;
114 if (buf
[i
-1] == '\n') buf
[--i
]='\0';
115 if (i
== 0) goto err_sl
;
116 if (buf
[i
-1] == '\r') buf
[--i
]='\0';
117 if (i
== 0) goto err_sl
;
118 again
=(buf
[i
-1] == '\\');
122 if (!( ((buf
[j
] >= '0') && (buf
[j
] <= '9')) ||
123 ((buf
[j
] >= 'a') && (buf
[j
] <= 'f')) ||
124 ((buf
[j
] >= 'A') && (buf
[j
] <= 'F'))))
131 /* We have now cleared all the crap off the end of the
133 if (i
< 2) goto err_sl
;
135 bufp
=(unsigned char *)buf
;
139 if ((bufp
[0] == '0') && (buf
[1] == '0'))
149 ASN1err(ASN1_F_A2I_ASN1_ENUMERATED
,ASN1_R_ODD_NUMBER_OF_CHARS
);
156 sp
=(unsigned char *)OPENSSL_malloc(
157 (unsigned int)num
+i
*2);
159 sp
=(unsigned char *)OPENSSL_realloc(s
,
160 (unsigned int)num
+i
*2);
163 ASN1err(ASN1_F_A2I_ASN1_ENUMERATED
,ERR_R_MALLOC_FAILURE
);
164 if (s
!= NULL
) OPENSSL_free(s
);
170 for (j
=0; j
<i
; j
++,k
+=2)
175 if ((m
>= '0') && (m
<= '9'))
177 else if ((m
>= 'a') && (m
<= 'f'))
179 else if ((m
>= 'A') && (m
<= 'F'))
183 ASN1err(ASN1_F_A2I_ASN1_ENUMERATED
,ASN1_R_NON_HEX_CHARACTERS
);
192 bufsize
=BIO_gets(bp
,buf
,size
);
203 ASN1err(ASN1_F_A2I_ASN1_ENUMERATED
,ASN1_R_SHORT_LINE
);