--- /dev/null
+/* crypto/asn1/f_string.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>
+
+int i2a_ASN1_STRING(BIO *bp, ASN1_STRING *a, int type)
+ {
+ 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,"0",1) != 1) goto err;
+ n=1;
+ }
+ 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_STRING(BIO *bp, ASN1_STRING *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;
+
+ bufsize=BIO_gets(bp,buf,size);
+ for (;;)
+ {
+ if (bufsize < 1)
+ {
+ if (first)
+ break;
+ else
+ goto err_sl;
+ }
+ first=0;
+
+ 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=i-1; j>0; j--)
+ {
+#ifndef CHARSET_EBCDIC
+ if (!( ((buf[j] >= '0') && (buf[j] <= '9')) ||
+ ((buf[j] >= 'a') && (buf[j] <= 'f')) ||
+ ((buf[j] >= 'A') && (buf[j] <= 'F'))))
+#else
+ /* This #ifdef is not strictly necessary, since
+ * the characters A...F a...f 0...9 are contiguous
+ * (yes, even in EBCDIC - but not the whole alphabet).
+ * Nevertheless, isxdigit() is faster.
+ */
+ if (!isxdigit(buf[j]))
+#endif
+ {
+ 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;
+
+ k=0;
+ i-=again;
+ if (i%2 != 0)
+ {
+ ASN1err(ASN1_F_A2I_ASN1_STRING,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_STRING,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_STRING,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_STRING,ASN1_R_SHORT_LINE);
+ }
+ return(ret);
+ }
+
projects / cassiopeia.git / blobdiff