File: [local] / OpenXM_contrib2 / asir2000 / io / io.c (download)
Revision 1.3, Thu Mar 16 04:55:20 2000 UTC (24 years, 6 months ago) by noro
Branch: MAIN
CVS Tags: RELEASE_1_1_2 Changes since 1.2: +8 -34
lines
Removed library mode test functions from miscf.c.
Modified the meaning of byte order specification in library mode.
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/* $OpenXM: OpenXM_contrib2/asir2000/io/io.c,v 1.3 2000/03/16 04:55:20 noro Exp $ */
#include <stdio.h>
#include "ca.h"
#if defined(VISUAL) || MPI
#include "wsio.h"
#endif
extern int little_endian,lib_ox_need_conv;
extern int ox_do_copy, ox_do_count, ox_count_length, ox_file_io, ox_need_conv;
extern char *ox_copy_bptr;
void reset_io()
{
ox_file_io = 0;
}
void endian_init()
{
unsigned int et = 0xff;
if ( *((char *)&et) )
little_endian = 1;
else
little_endian = 0;
ox_need_conv = 1;
}
int countobj(p)
Obj p;
{
ox_count_length = 0;
ox_do_count = 1; saveobj(0,p); ox_do_count = 0;
return ox_count_length;
}
int count_as_cmo(p)
Obj p;
{
ox_count_length = 0;
ox_do_count = 1; write_cmo(0,p); ox_do_count = 0;
return ox_count_length;
}
int countvl(vl)
VL vl;
{
ox_count_length = 0;
ox_do_count = 1; savevl(0,vl); ox_do_count = 0;
return ox_count_length;
}
void ox_copy_init(s)
char *s;
{
ox_copy_bptr = s;
}
/*
* library mode functions
* byte order is controlled by lib_ox_need_conv.
*/
void ox_obj_to_buf_as_cmo(p)
Obj p;
{
ox_need_conv = lib_ox_need_conv;
ox_do_copy = 1; write_cmo(0,p); ox_do_copy = 0;
}
void ox_buf_to_obj_as_cmo(p)
Obj *p;
{
ox_need_conv = lib_ox_need_conv;
ox_do_copy = 1; read_cmo(0,p); ox_do_copy = 0;
}
void ox_vl_to_buf(vl)
VL vl;
{
ox_do_copy = 1; savevl(0,vl); ox_do_copy = 0;
}
int gen_fread (ptr,size,nitems,stream)
char *ptr;
int size,nitems;
FILE *stream;
{
int n;
if ( ox_do_copy ) {
n = size*nitems;
memcpy(ptr,ox_copy_bptr,n);
ox_copy_bptr += n;
} else {
#if defined(VISUAL)
if ( _fileno(stream) < 0 )
n = cread(ptr,size,nitems,(STREAM *)stream);
else
#elif MPI
if ( (char)fileno(stream) < 0 )
n = cread(ptr,size,nitems,(STREAM *)stream);
else
#endif
n = fread(ptr,size,nitems,stream);
if ( !n )
ExitAsir();
else
return n;
}
}
int gen_fwrite (ptr,size,nitems,stream)
char *ptr;
int size,nitems;
FILE *stream;
{
int n;
if ( ox_do_count )
ox_count_length += size*nitems;
else if ( ox_do_copy ) {
n = size*nitems;
memcpy(ox_copy_bptr,ptr,n);
ox_copy_bptr += n;
} else
#if defined(VISUAL)
if ( _fileno(stream) < 0 )
return cwrite(ptr,size,nitems,(STREAM *)stream);
else
#elif MPI
if ( (char)fileno(stream) < 0 )
return cwrite(ptr,size,nitems,(STREAM *)stream);
else
#endif
return fwrite(ptr,size,nitems,stream);
}
void write_char(f,p)
FILE *f;
unsigned char *p;
{
gen_fwrite(p,sizeof(unsigned char),1,f);
}
void write_short(f,p)
FILE *f;
unsigned short *p;
{
unsigned short t;
if ( little_endian && (ox_file_io || ox_need_conv) ) {
t = htons(*p);
gen_fwrite(&t,sizeof(unsigned short),1,f);
} else
gen_fwrite(p,sizeof(unsigned short),1,f);
}
void write_int(f,p)
FILE *f;
unsigned int *p;
{
unsigned int t;
if ( little_endian && (ox_file_io || ox_need_conv) ) {
t = htonl(*p);
gen_fwrite(&t,sizeof(unsigned int),1,f);
} else
gen_fwrite(p,sizeof(unsigned int),1,f);
}
int des_encryption;
static unsigned char asir_deskey[8] = {0xc7,0xe0,0xfc,0xb5,0xc3,0xad,0x8e,0x3a};
static unsigned char deskey_string[96];
void init_deskey()
{
static int deskey_initialized = 0;
if ( !deskey_initialized ) {
key_schedule(asir_deskey,deskey_string);
deskey_initialized = 1;
}
}
void write_intarray(f,p,l)
FILE *f;
unsigned int *p;
int l;
{
int i;
unsigned int t;
#if defined(VISUAL)
int l2;
unsigned int plain[2],encrypted[2];
if ( des_encryption ) {
l2 = l>>1;
for ( i = 0; i < l2; i++ ) {
plain[0] = *p++;
plain[1] = *p++;
des_enc(plain,deskey_string,encrypted);
encrypted[0] = htonl(encrypted[0]);
encrypted[1] = htonl(encrypted[1]);
gen_fwrite(encrypted,sizeof(unsigned int),2,f);
}
if ( (l2<<1) < l ) {
plain[0] = *p;
plain[1] = 0;
des_enc(plain,deskey_string,encrypted);
encrypted[0] = htonl(encrypted[0]);
encrypted[1] = htonl(encrypted[1]);
gen_fwrite(encrypted,sizeof(unsigned int),2,f);
}
} else
#endif
if ( little_endian && (ox_file_io || ox_need_conv) )
for ( i = 0; i < l; i++, p++) {
t = htonl(*p);
gen_fwrite(&t,sizeof(unsigned int),1,f);
}
else
gen_fwrite(p,sizeof(unsigned int),l,f);
}
#if defined(LONG_IS_64BIT)
void write_longarray(f,p,l)
FILE *f;
unsigned long *p;
int l;
{
int i;
unsigned long w;
unsigned int hi,lo;
if ( little_endian && (ox_file_io || ox_need_conv) )
for ( i = 0; i < l; i++, p++) {
w = *p; hi = w>>32; lo = w&0xffffffff;
hi = htonl(hi); lo = htonl(lo);
gen_fwrite(&hi,sizeof(unsigned int),1,f);
gen_fwrite(&lo,sizeof(unsigned int),1,f);
}
else
gen_fwrite(p,sizeof(unsigned long),l,f);
}
#endif
void write_double(f,p)
FILE *f;
double *p;
{
unsigned int t;
if ( little_endian && (ox_file_io || ox_need_conv) ) {
t = htonl(((unsigned int *)p)[1]);
gen_fwrite(&t,sizeof(unsigned int),1,f);
t = htonl(((unsigned int *)p)[0]);
gen_fwrite(&t,sizeof(unsigned int),1,f);
} else
gen_fwrite(p,sizeof(double),1,f);
}
void write_string(f,p,l)
FILE *f;
unsigned char *p;
{
gen_fwrite(p,sizeof(unsigned char),l,f);
}
void read_char(f,p)
FILE *f;
unsigned char *p;
{
gen_fread((char *)p,sizeof(unsigned char),1,f);
}
void read_short(f,p)
FILE *f;
unsigned short *p;
{
gen_fread(p,sizeof(unsigned short),1,f);
if ( little_endian && (ox_file_io || ox_need_conv) )
*p = ntohs(*p);
}
void read_int(f,p)
FILE *f;
unsigned int *p;
{
gen_fread(p,sizeof(unsigned int),1,f);
if ( little_endian && (ox_file_io || ox_need_conv) )
*p = ntohl(*p);
}
void read_intarray(f,p,l)
FILE *f;
unsigned int *p;
int l;
{
int i;
unsigned int t;
#if defined(VISUAL)
int l2;
unsigned int plain[2],encrypted[2];
if ( des_encryption ) {
l2 = l>>1;
for ( i = 0; i < l2; i++ ) {
gen_fread((char *)encrypted,sizeof(unsigned int),2,f);
encrypted[0] = ntohl(encrypted[0]);
encrypted[1] = ntohl(encrypted[1]);
des_dec(encrypted,deskey_string,plain);
*p++ = plain[0];
*p++ = plain[1];
}
if ( (l2<<1) < l ) {
gen_fread((char *)encrypted,sizeof(unsigned int),2,f);
encrypted[0] = ntohl(encrypted[0]);
encrypted[1] = ntohl(encrypted[1]);
des_dec(encrypted,deskey_string,plain);
*p = plain[0];
}
} else
#endif
{
gen_fread(p,sizeof(unsigned int),l,f);
if ( little_endian && (ox_file_io || ox_need_conv) )
for ( i = 0; i < l; i++, p++ )
*p = ntohl(*p);
}
}
#if defined(LONG_IS_64BIT)
void read_longarray(f,p,l)
FILE *f;
unsigned long *p;
int l;
{
int i;
unsigned int hi,lo;
if ( little_endian && (ox_file_io || ox_need_conv) ) {
for ( i = l; i > 1; i -= 2, p++ ) {
gen_fread(&hi,sizeof(unsigned int),1,f);
gen_fread(&lo,sizeof(unsigned int),1,f);
hi = ntohl(hi); lo = ntohl(lo);
*p = (((unsigned long)hi)<<32)|((unsigned long)lo);
}
if ( i == 1 ) {
gen_fread(&hi,sizeof(unsigned int),1,f);
hi = ntohl(hi); *p = (((unsigned long)hi)<<32);
}
} else
gen_fread(p,sizeof(unsigned int),l,f);
}
#endif
void read_string(f,p,l)
FILE *f;
unsigned char *p;
{
gen_fread((char *)p,sizeof(unsigned char),l,f);
}
void read_double(f,p)
FILE *f;
double *p;
{
unsigned int t;
if ( little_endian && (ox_file_io || ox_need_conv) ) {
gen_fread((char *)&t,sizeof(unsigned int),1,f);
((unsigned int *)p)[1] = ntohl(t);
gen_fread((char *)&t,sizeof(unsigned int),1,f);
((unsigned int *)p)[0] = ntohl(t);
} else
gen_fread((char *)p,sizeof(double),1,f);
}