NetBSD/sys/isofs/isofs_util.c

202 lines
3.3 KiB
C

/*
* $Id: isofs_util.c,v 1.6 1993/09/16 16:54:10 ws Exp $
*/
#include "param.h"
#include "systm.h"
#include "namei.h"
#include "resourcevar.h"
#include "kernel.h"
#include "file.h"
#include "stat.h"
#include "buf.h"
#include "proc.h"
#include "conf.h"
#include "mount.h"
#include "vnode.h"
#include "specdev.h"
#include "fifo.h"
#include "malloc.h"
#include "dir.h"
#include "iso.h"
#include "dirent.h"
#include "machine/endian.h"
#ifdef __notanymore__
int
isonum_711 (p)
unsigned char *p;
{
return (*p);
}
int
isonum_712 (p)
signed char *p;
{
return (*p);
}
int
isonum_721 (p)
unsigned char *p;
{
/* little endian short */
#if BYTE_ORDER != LITTLE_ENDIAN
printf ("isonum_721 called on non little-endian machine!\n");
#endif
return *(short *)p;
}
int
isonum_722 (p)
unsigned char *p;
{
/* big endian short */
#if BYTE_ORDER != BIG_ENDIAN
printf ("isonum_722 called on non big-endian machine!\n");
#endif
return *(short *)p;
}
int
isonum_723 (p)
unsigned char *p;
{
#if BYTE_ORDER == BIG_ENDIAN
return isonum_722 (p + 2);
#elif BYTE_ORDER == LITTLE_ENDIAN
return isonum_721 (p);
#else
printf ("isonum_723 unsupported byte order!\n");
return 0;
#endif
}
int
isonum_731 (p)
unsigned char *p;
{
/* little endian long */
#if BYTE_ORDER != LITTLE_ENDIAN
printf ("isonum_731 called on non little-endian machine!\n");
#endif
return *(long *)p;
}
int
isonum_732 (p)
unsigned char *p;
{
/* big endian long */
#if BYTE_ORDER != BIG_ENDIAN
printf ("isonum_732 called on non big-endian machine!\n");
#endif
return *(long *)p;
}
int
isonum_733 (p)
unsigned char *p;
{
#if BYTE_ORDER == BIG_ENDIAN
return isonum_732 (p + 4);
#elif BYTE_ORDER == LITTLE_ENDIAN
return isonum_731 (p);
#else
printf ("isonum_733 unsupported byte order!\n");
return 0;
#endif
}
#endif /* __notanymore__ */
/*
* translate and compare a filename
* Note: Version number plus ';' may be omitted.
*/
int
isofncmp(unsigned char *fn,int fnlen,unsigned char *isofn,int isolen)
{
int i, j;
char c;
while (--fnlen >= 0) {
if (--isolen < 0)
return *fn;
if ((c = *isofn++) == ';') {
switch (*fn++) {
default:
return *--fn;
case 0:
return 0;
case ';':
break;
}
for (i = 0; --fnlen >= 0; i = i * 10 + *fn++ - '0') {
if (*fn < '0' || *fn > '9') {
return -1;
}
}
for (j = 0; --isolen >= 0; j = j * 10 + *isofn++ - '0');
return i - j;
}
if (c != *fn) {
if (c >= 'A' && c <= 'Z') {
if (c + ('a' - 'A') != *fn) {
if (*fn >= 'a' && *fn <= 'z')
return *fn - ('a' - 'A') - c;
else
return *fn - c;
}
} else
return *fn - c;
}
fn++;
}
if (isolen > 0) {
switch (*isofn) {
default:
return -1;
case '.':
if (isofn[1] != ';')
return -1;
case ';':
return 0;
}
}
return 0;
}
/*
* translate a filename
*/
void
isofntrans(unsigned char *infn,int infnlen,
unsigned char *outfn,unsigned short *outfnlen,
int stripgen,int assoc)
{
int fnidx;
for (fnidx = 0; fnidx < infnlen; fnidx++) {
char c = *infn++;
if (c >= 'A' && c <= 'Z')
*outfn++ = c + ('a' - 'A');
else if (c == '.' && stripgen && *infn == ';')
break;
else if (c == ';' && stripgen)
break;
else
*outfn++ = c;
}
if (assoc) {
*outfn = ASSOCCHAR;
fnidx++;
}
*outfnlen = fnidx;
}