mirror of
https://github.com/GnoConsortium/gno.git
synced 2024-09-07 19:54:27 +00:00
110 lines
2.3 KiB
C
110 lines
2.3 KiB
C
/*
|
|
* getwd originally by Derek Taubert. First appeared in GNO v1.0 (?).
|
|
* Modified for BSD 4.4 compatibility and dynamically allocated structs
|
|
* by Devin Reade.
|
|
*
|
|
* $Id: getcwd.c,v 1.3 1997/09/21 06:05:00 gdr Exp $
|
|
*
|
|
* This file is formatted for tabs every 8 columns.
|
|
*/
|
|
|
|
#ifdef __ORCAC__
|
|
segment "libc_gen__";
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <types.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <orca.h>
|
|
#include <gno/gno.h>
|
|
#include <gsos.h>
|
|
|
|
char *
|
|
getcwd(char *pathname, size_t size) {
|
|
PrefixRecGS *prefx;
|
|
ResultBufPtr where;
|
|
int e, allocated, i;
|
|
char *result;
|
|
|
|
if (size == 0 && pathname != NULL) {
|
|
errno = EINVAL;
|
|
return NULL;
|
|
}
|
|
if ((prefx = malloc (sizeof(PrefixRecGS))) == NULL) {
|
|
return NULL;
|
|
}
|
|
if (pathname == NULL) {
|
|
size = MAXPATHLEN;
|
|
if ((pathname = malloc(size)) == NULL) {
|
|
e = errno;
|
|
free(prefx);
|
|
errno = e;
|
|
return NULL;
|
|
}
|
|
allocated = 1;
|
|
} else {
|
|
allocated = 0;
|
|
}
|
|
result = pathname;
|
|
if ((where = GOinit (size, NULL)) == NULL) {
|
|
e = errno;
|
|
free(prefx);
|
|
if (allocated) free(pathname);
|
|
errno = e;
|
|
return NULL;
|
|
}
|
|
|
|
prefx->pCount = 2;
|
|
prefx->buffer.getPrefix = (ResultBuf255Ptr) where;
|
|
for (i=0; i<2; i++) {
|
|
switch (i) {
|
|
case 0:
|
|
prefx->prefixNum = 0;
|
|
break;
|
|
case 1:
|
|
prefx->prefixNum = 8;
|
|
break;
|
|
}
|
|
GetPrefixGS(prefx);
|
|
if (i == 0 && _toolErr == 0 && where->bufString.length == 0) {
|
|
/* prefix 0 not set */
|
|
continue;
|
|
} else if ((e = _toolErr) != 0) {
|
|
e = (e == buffTooSmall) ? ERANGE : _mapErr(e);
|
|
result = NULL;
|
|
break;
|
|
} else {
|
|
e = errno;
|
|
strncpy(pathname, where->bufString.text, where->bufString.length);
|
|
pathname[where->bufString.length] = 0;
|
|
if (pathname[where->bufString.length-1] == ':') {
|
|
pathname[where->bufString.length-1] = '\0';
|
|
}
|
|
|
|
/* convert the filename? */
|
|
if (_mapPath(pathname) == NULL) {
|
|
e = EINVAL;
|
|
result = NULL;
|
|
}
|
|
break;
|
|
}
|
|
/* NOTREACHED */
|
|
}
|
|
free(prefx);
|
|
GOfree(where);
|
|
if (allocated && result == NULL) {
|
|
free(pathname);
|
|
}
|
|
errno = e;
|
|
return result;
|
|
}
|
|
|
|
char *
|
|
getwd (char *pathname) {
|
|
return getcwd(pathname, MAXPATHLEN);
|
|
}
|