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/* ====================================================================
* Copyright (c) 2007 The OpenSSL Project. All rights reserved.
*
* 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 above 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 acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
*
*/
void do_print_errors(void);
int hex2bin(const char *in, unsigned char *out);
unsigned char *hex2bin_m(const char *in, long *plen);
int do_hex2bn(BIGNUM **pr, const char *in);
int do_bn_print(FILE *out, BIGNUM *bn);
int do_bn_print_name(FILE *out, const char *name, BIGNUM *bn);
int parse_line(char **pkw, char **pval, char *linebuf, char *olinebuf);
BIGNUM *hex2bn(const char *in);
int bin2hex(const unsigned char *in,int len,char *out);
void pv(const char *tag,const unsigned char *val,int len);
int tidy_line(char *linebuf, char *olinebuf);
int bint2bin(const char *in, int len, unsigned char *out);
int bin2bint(const unsigned char *in,int len,char *out);
void PrintValue(char *tag, unsigned char *val, int len);
void OutputValue(char *tag, unsigned char *val, int len, FILE *rfp,int bitmode);
void do_print_errors(void)
{
const char *file, *data;
int line, flags;
unsigned long l;
while ((l = ERR_get_error_line_data(&file, &line, &data, &flags)))
{
fprintf(stderr, "ERROR:%lx:lib=%d,func=%d,reason=%d"
":file=%s:line=%d:%s\n",
l, ERR_GET_LIB(l), ERR_GET_FUNC(l), ERR_GET_REASON(l),
file, line, flags & ERR_TXT_STRING ? data : "");
}
}
int hex2bin(const char *in, unsigned char *out)
{
int n1, n2;
unsigned char ch;
for (n1=0,n2=0 ; in[n1] && in[n1] != '\n' ; )
{ /* first byte */
if ((in[n1] >= '0') && (in[n1] <= '9'))
ch = in[n1++] - '0';
else if ((in[n1] >= 'A') && (in[n1] <= 'F'))
ch = in[n1++] - 'A' + 10;
else if ((in[n1] >= 'a') && (in[n1] <= 'f'))
ch = in[n1++] - 'a' + 10;
else
return -1;
if(!in[n1])
{
out[n2++]=ch;
break;
}
out[n2] = ch << 4;
/* second byte */
if ((in[n1] >= '0') && (in[n1] <= '9'))
ch = in[n1++] - '0';
else if ((in[n1] >= 'A') && (in[n1] <= 'F'))
ch = in[n1++] - 'A' + 10;
else if ((in[n1] >= 'a') && (in[n1] <= 'f'))
ch = in[n1++] - 'a' + 10;
else
return -1;
out[n2++] |= ch;
}
return n2;
}
unsigned char *hex2bin_m(const char *in, long *plen)
{
unsigned char *p;
p = OPENSSL_malloc((strlen(in) + 1)/2);
*plen = hex2bin(in, p);
return p;
}
int do_hex2bn(BIGNUM **pr, const char *in)
{
unsigned char *p;
long plen;
int r = 0;
p = hex2bin_m(in, &plen);
if (!p)
return 0;
if (!*pr)
*pr = BN_new();
if (!*pr)
return 0;
if (BN_bin2bn(p, plen, *pr))
r = 1;
OPENSSL_free(p);
return r;
}
int do_bn_print(FILE *out, BIGNUM *bn)
{
int len, i;
unsigned char *tmp;
len = BN_num_bytes(bn);
if (len == 0)
{
fputs("00", out);
return 1;
}
tmp = OPENSSL_malloc(len);
if (!tmp)
{
fprintf(stderr, "Memory allocation error\n");
return 0;
}
BN_bn2bin(bn, tmp);
for (i = 0; i < len; i++)
fprintf(out, "%02x", tmp[i]);
OPENSSL_free(tmp);
return 1;
}
int do_bn_print_name(FILE *out, const char *name, BIGNUM *bn)
{
int r;
fprintf(out, "%s = ", name);
r = do_bn_print(out, bn);
if (!r)
return 0;
fputs("\n", out);
return 1;
}
int parse_line(char **pkw, char **pval, char *linebuf, char *olinebuf)
{
char *keyword, *value, *p, *q;
strcpy(linebuf, olinebuf);
keyword = linebuf;
/* Skip leading space */
while (isspace((unsigned char)*keyword))
keyword++;
/* Look for = sign */
p = strchr(linebuf, '=');
/* If no '=' exit */
if (!p)
return 0;
q = p - 1;
/* Remove trailing space */
while (isspace((unsigned char)*q))
*q-- = 0;
*p = 0;
value = p + 1;
/* Remove leading space from value */
while (isspace((unsigned char)*value))
value++;
/* Remove trailing space from value */
p = value + strlen(value) - 1;
while (*p == '\n' || isspace((unsigned char)*p))
*p-- = 0;
*pkw = keyword;
*pval = value;
return 1;
}
BIGNUM *hex2bn(const char *in)
{
BIGNUM *p=NULL;
if (!do_hex2bn(&p, in))
return NULL;
return p;
}
int bin2hex(const unsigned char *in,int len,char *out)
{
int n1, n2;
unsigned char ch;
for (n1=0,n2=0 ; n1 < len ; ++n1)
{
ch=in[n1] >> 4;
if (ch <= 0x09)
out[n2++]=ch+'0';
else
out[n2++]=ch-10+'a';
ch=in[n1] & 0x0f;
if(ch <= 0x09)
out[n2++]=ch+'0';
else
out[n2++]=ch-10+'a';
}
out[n2]='\0';
return n2;
}
void pv(const char *tag,const unsigned char *val,int len)
{
char obuf[2048];
bin2hex(val,len,obuf);
printf("%s = %s\n",tag,obuf);
}
/* To avoid extensive changes to test program at this stage just convert
* the input line into an acceptable form. Keyword lines converted to form
* "keyword = value\n" no matter what white space present, all other lines
* just have leading and trailing space removed.
*/
int tidy_line(char *linebuf, char *olinebuf)
{
char *keyword, *value, *p, *q;
strcpy(linebuf, olinebuf);
keyword = linebuf;
/* Skip leading space */
while (isspace((unsigned char)*keyword))
keyword++;
/* Look for = sign */
p = strchr(linebuf, '=');
/* If no '=' just chop leading, trailing ws */
if (!p)
{
p = keyword + strlen(keyword) - 1;
while (*p == '\n' || isspace((unsigned char)*p))
*p-- = 0;
strcpy(olinebuf, keyword);
strcat(olinebuf, "\n");
return 1;
}
q = p - 1;
/* Remove trailing space */
while (isspace((unsigned char)*q))
*q-- = 0;
*p = 0;
value = p + 1;
/* Remove leading space from value */
while (isspace((unsigned char)*value))
value++;
/* Remove trailing space from value */
p = value + strlen(value) - 1;
while (*p == '\n' || isspace((unsigned char)*p))
*p-- = 0;
strcpy(olinebuf, keyword);
strcat(olinebuf, " = ");
strcat(olinebuf, value);
strcat(olinebuf, "\n");
return 1;
}
/* NB: this return the number of _bits_ read */
int bint2bin(const char *in, int len, unsigned char *out)
{
int n;
memset(out,0,len);
for(n=0 ; n < len ; ++n)
if(in[n] == '1')
out[n/8]|=(0x80 >> (n%8));
return len;
}
int bin2bint(const unsigned char *in,int len,char *out)
{
int n;
for(n=0 ; n < len ; ++n)
out[n]=(in[n/8]&(0x80 >> (n%8))) ? '1' : '0';
return n;
}
/*-----------------------------------------------*/
void PrintValue(char *tag, unsigned char *val, int len)
{
#if VERBOSE
char obuf[2048];
int olen;
olen = bin2hex(val, len, obuf);
printf("%s = %.*s\n", tag, olen, obuf);
#endif
}
void OutputValue(char *tag, unsigned char *val, int len, FILE *rfp,int bitmode)
{
char obuf[2048];
int olen;
if(bitmode)
olen=bin2bint(val,len,obuf);
else
olen=bin2hex(val,len,obuf);
fprintf(rfp, "%s = %.*s\n", tag, olen, obuf);
#if VERBOSE
printf("%s = %.*s\n", tag, olen, obuf);
#endif
}
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