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/*****************************************************************************
Saleem N. Bhatti
February 1993
*****************************************************************************/
#if !defined(_qfDES_memory_c_)
#define _qfDES_memory_c_
#include <stdio.h>
#include <memory.h>
#include <malloc.h>
#include <ctype.h>
#include "config.h"
#include "qfDES.h"
#ifndef DEFINED_ERRLIST
extern int sys_nerr;
extern char *sys_errlist[];
#endif
extern int errno;
#if defined(DEBUG)
#define DES_ERROR(s_) \
fprintf(stderr, "%s: errno %d - %s [%s line %d]\n", s_, errno, errno < sys_nerr ? sys_errlist[errno] : "???", __FILE__, __LINE__)
#else
#define DES_ERROR(s_) \
fprintf(stderr, "%s: errno %d - %s\n", s_, errno, errno < sys_nerr ? sys_errlist[errno] : "???")
#endif
char G_padChar; /* in qfDES.c */
char
#if defined(__STDC__) || defined(__cplusplus)
qfDES_setPad(char pad)
#else
qfDES_setPad(pad)
char pad;
#endif
{ char b = G_padChar; G_padChar = pad; return b; }
unsigned int
#if defined(__STDC__) || defined(__cplusplus)
qfDES_malloc(char **ptr, unsigned int size)
#else
qfDES_malloc(ptr, size)
char **ptr;
unsigned int size;
#endif
{
register
unsigned int pad, s;
register
char *bp;
pad = 8 - (size % 8);
s = size + pad;
if ((bp = (char *) malloc(s)) != (char *) 0) {
/* pad with spaces */
qfDES_insertPadding(bp, size);
*ptr = bp;
}
else {
DES_ERROR("qfDES_malloc");
s = 0;
*ptr = (char *) 0;
}
return s;
}
unsigned int
#if defined(__STDC__) || defined(__cplusplus)
qfDES_realloc(char **ptr, unsigned int size)
#else
qfDES_realloc(ptr, size)
char **ptr;
unsigned int size;
#endif
{
register
unsigned int pad, s;
char *bp;
pad = 8 - (size % 8);
s = size + pad;
if ((bp = (char *) realloc((char *) *ptr, s)) != (char *) 0) {
/* pad it */
qfDES_insertPadding(bp, size);
*ptr = bp;
}
else {
DES_ERROR("qfDES_realloc()");
s = 0;
}
return s;
}
unsigned int
#if defined(__STDC__) || defined(__cplusplus)
qfDES_insertPadding(char *ptr, unsigned int size)
#else
qfDES_insertPadding(ptr, size)
char *ptr;
unsigned int size;
#endif
{
register
unsigned int pad, s;
pad = 8 - (size % 8);
s = size + pad;
/* pad the buffer */
memset((void *) &(ptr[size]), G_padChar, (pad - 1));
ptr[s - 1] = (char) pad;
return s;
}
void
#if defined(__STDC__) || defined(__cplusplus)
qfDES_free(char *ptr)
#else
qfDES_free(ptr)
char *ptr;
#endif
{ if (ptr) free((char *) ptr); }
unsigned int
#if defined(__STDC__) || defined(__cplusplus)
qfDES_bin2hex(char *binText, char *hexText, unsigned int size)
#else
qfDES_bin2hex(binText, hexText, size)
char *binText;
char *hexText;
unsigned int size;
#endif
{
register
unsigned int i, s;
register
char *bp, *hp;
s = (size * 2) + 1;
for(i = 0, bp = binText, hp = hexText; i < size; ++i, ++bp, hp += 2)
sprintf(hp, "%02x", (unsigned int) ((unsigned char) *bp));
return s;
}
unsigned int
#if defined(__STDC__) || defined(__cplusplus)
qfDES_hex2bin(char *hexText, char *binText, unsigned int size)
#else
qfDES_hex2bin(hexText, binText, size)
char *hexText;
char *binText;
unsigned int size;
#endif
{
register
unsigned int i, s;
register
char *bp, *hp;
unsigned long v;
s = size/2;
for(i = 0, hp = hexText, bp = binText; i < s; ++i, hp += 2, ++bp) {
/* Check that digits in string are OK */
if (!isxdigit((unsigned int) ((unsigned char) hp[0])) ||
!isxdigit((unsigned int) ((unsigned char) hp[1])))
return i;
sscanf(hp, "%02lx", &v);
*bp = (char) v;
}
return s;
}
char *
#if defined(__STDC__) || defined(__cplusplus)
qfDES_copy(char *ptr, unsigned int size)
#else
qfDES_copy(ptr, size)
char *ptr;
unsigned int size;
#endif
{
register
char *bp = (char *) malloc(size);
if (bp != (char *) 0)
memcpy((void *) bp, (void *) ptr, size);
else
DES_ERROR("qfDES_copy()");
return bp;
}
#endif /* !_qfDES_memory_c_ */
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