diff options
| author | Arne Schwabe <arne@rfc2549.org> | 2012-04-16 19:21:14 +0200 | 
|---|---|---|
| committer | Arne Schwabe <arne@rfc2549.org> | 2012-04-16 19:21:14 +0200 | 
| commit | 3e4d8f433239c40311037616b1b8833a06651ae0 (patch) | |
| tree | 98ab7fce0d011d34677b0beb762d389cb5c39199 /openssl/crypto/asn1/f_enum.c | |
Initial import
Diffstat (limited to 'openssl/crypto/asn1/f_enum.c')
| -rw-r--r-- | openssl/crypto/asn1/f_enum.c | 207 | 
1 files changed, 207 insertions, 0 deletions
diff --git a/openssl/crypto/asn1/f_enum.c b/openssl/crypto/asn1/f_enum.c new file mode 100644 index 00000000..56e3cc8d --- /dev/null +++ b/openssl/crypto/asn1/f_enum.c @@ -0,0 +1,207 @@ +/* crypto/asn1/f_enum.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + *  + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to.  The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code.  The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + *  + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + *  + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + *    notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + *    notice, this list of conditions and the following disclaimer in the + *    documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + *    must display the following acknowledgement: + *    "This product includes cryptographic software written by + *     Eric Young (eay@cryptsoft.com)" + *    The word 'cryptographic' can be left out if the rouines from the library + *    being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from  + *    the apps directory (application code) you must include an acknowledgement: + *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + *  + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + *  + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed.  i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/buffer.h> +#include <openssl/asn1.h> + +/* Based on a_int.c: equivalent ENUMERATED functions */ + +int i2a_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *a) +	{ +	int i,n=0; +	static const char *h="0123456789ABCDEF"; +	char buf[2]; + +	if (a == NULL) return(0); + +	if (a->length == 0) +		{ +		if (BIO_write(bp,"00",2) != 2) goto err; +		n=2; +		} +	else +		{ +		for (i=0; i<a->length; i++) +			{ +			if ((i != 0) && (i%35 == 0)) +				{ +				if (BIO_write(bp,"\\\n",2) != 2) goto err; +				n+=2; +				} +			buf[0]=h[((unsigned char)a->data[i]>>4)&0x0f]; +			buf[1]=h[((unsigned char)a->data[i]   )&0x0f]; +			if (BIO_write(bp,buf,2) != 2) goto err; +			n+=2; +			} +		} +	return(n); +err: +	return(-1); +	} + +int a2i_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *bs, char *buf, int size) +	{ +	int ret=0; +	int i,j,k,m,n,again,bufsize; +	unsigned char *s=NULL,*sp; +	unsigned char *bufp; +	int num=0,slen=0,first=1; + +	bs->type=V_ASN1_ENUMERATED; + +	bufsize=BIO_gets(bp,buf,size); +	for (;;) +		{ +		if (bufsize < 1) goto err_sl; +		i=bufsize; +		if (buf[i-1] == '\n') buf[--i]='\0'; +		if (i == 0) goto err_sl; +		if (buf[i-1] == '\r') buf[--i]='\0'; +		if (i == 0) goto err_sl; +		again=(buf[i-1] == '\\'); + +		for (j=0; j<i; j++) +			{ +			if (!(	((buf[j] >= '0') && (buf[j] <= '9')) || +				((buf[j] >= 'a') && (buf[j] <= 'f')) || +				((buf[j] >= 'A') && (buf[j] <= 'F')))) +				{ +				i=j; +				break; +				} +			} +		buf[i]='\0'; +		/* We have now cleared all the crap off the end of the +		 * line */ +		if (i < 2) goto err_sl; + +		bufp=(unsigned char *)buf; +		if (first) +			{ +			first=0; +			if ((bufp[0] == '0') && (buf[1] == '0')) +				{ +				bufp+=2; +				i-=2; +				} +			} +		k=0; +		i-=again; +		if (i%2 != 0) +			{ +			ASN1err(ASN1_F_A2I_ASN1_ENUMERATED,ASN1_R_ODD_NUMBER_OF_CHARS); +			goto err; +			} +		i/=2; +		if (num+i > slen) +			{ +			if (s == NULL) +				sp=(unsigned char *)OPENSSL_malloc( +					(unsigned int)num+i*2); +			else +				sp=(unsigned char *)OPENSSL_realloc(s, +					(unsigned int)num+i*2); +			if (sp == NULL) +				{ +				ASN1err(ASN1_F_A2I_ASN1_ENUMERATED,ERR_R_MALLOC_FAILURE); +				if (s != NULL) OPENSSL_free(s); +				goto err; +				} +			s=sp; +			slen=num+i*2; +			} +		for (j=0; j<i; j++,k+=2) +			{ +			for (n=0; n<2; n++) +				{ +				m=bufp[k+n]; +				if ((m >= '0') && (m <= '9')) +					m-='0'; +				else if ((m >= 'a') && (m <= 'f')) +					m=m-'a'+10; +				else if ((m >= 'A') && (m <= 'F')) +					m=m-'A'+10; +				else +					{ +					ASN1err(ASN1_F_A2I_ASN1_ENUMERATED,ASN1_R_NON_HEX_CHARACTERS); +					goto err; +					} +				s[num+j]<<=4; +				s[num+j]|=m; +				} +			} +		num+=i; +		if (again) +			bufsize=BIO_gets(bp,buf,size); +		else +			break; +		} +	bs->length=num; +	bs->data=s; +	ret=1; +err: +	if (0) +		{ +err_sl: +		ASN1err(ASN1_F_A2I_ASN1_ENUMERATED,ASN1_R_SHORT_LINE); +		} +	return(ret); +	} +  | 
