mirror of
https://github.com/GnoConsortium/gno.git
synced 2024-12-21 23:29:16 +00:00
91 lines
1.8 KiB
C
91 lines
1.8 KiB
C
/*
|
|
* $Id: expandpath.c,v 1.1 1997/10/30 04:57:25 gdr Exp $
|
|
*/
|
|
|
|
/* Change the arg types of GS/OS parameter blocks. Must be before #includes */
|
|
#define __USE_DYNAMIC_GSSTRING__
|
|
|
|
#include <types.h>
|
|
#include <gsos.h>
|
|
#include <errno.h>
|
|
#include <orca.h>
|
|
#include <gno/gno.h>
|
|
#include "contrib.h"
|
|
|
|
/*
|
|
* expandpath
|
|
*
|
|
* Uses the GS/OS facilities to expand the pathname <path>. On
|
|
* success, returns a pointer to the malloc'd expanded path. On
|
|
* failure it will return NULL and set errno.
|
|
*
|
|
* Note that in using this function, all directory separators will
|
|
* be converted to colons.
|
|
*
|
|
* *********** THIS ROUTINE IS NOT REENTRANT **************
|
|
*/
|
|
|
|
#define OUTBUF_QUANTUM 255
|
|
|
|
GSStringPtr
|
|
LC_ExpandPathGS (GSStringPtr path)
|
|
{
|
|
static ExpandPathRecGS expand;
|
|
static ResultBufPtr outBuf = NULL;
|
|
static int outBufSize = 0;
|
|
int i;
|
|
|
|
expand.pCount = 2;
|
|
expand.inputPath = path;
|
|
expand.flags = 0x0000;
|
|
if (outBuf == NULL) {
|
|
outBufSize += OUTBUF_QUANTUM;
|
|
outBuf = GOinit(outBufSize, NULL);
|
|
if (outBuf == NULL) {
|
|
errno = ENOMEM;
|
|
return NULL;
|
|
}
|
|
}
|
|
for(;;) {
|
|
expand.outputPath = outBuf;
|
|
ExpandPathGS(&expand);
|
|
switch (_toolErr) {
|
|
case 0:
|
|
/* NULL-terminate it and return */
|
|
(outBuf->bufString.text)[outBuf->bufString.length]
|
|
= '\0';
|
|
return &(outBuf->bufString);
|
|
break;
|
|
case buffTooSmall:
|
|
break;
|
|
default:
|
|
errno = _mapErr(_toolErr);
|
|
return NULL;
|
|
}
|
|
/* if we got here, the buffer wasn't large enough */
|
|
|
|
outBufSize += OUTBUF_QUANTUM;
|
|
outBuf = GOchange(outBuf, outBufSize, NULL);
|
|
}
|
|
}
|
|
|
|
char *
|
|
LC_ExpandPath (char *path)
|
|
{
|
|
GSStringPtr inStr, result;
|
|
int e;
|
|
|
|
if ((inStr = __C2GSMALLOC(path)) == NULL) {
|
|
return NULL;
|
|
}
|
|
result = LC_ExpandPathGS(inStr);
|
|
e = errno;
|
|
GIfree(inStr);
|
|
errno = e;
|
|
if (result) {
|
|
return result->text;
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|