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/* RCS $Id: tempnam.c,v 1.1.1.1 2000/09/22 15:33:37 hr Exp $
--
-- SYNOPSIS
-- tempnam
--
-- DESCRIPTION
-- temp file name generation routines.
--
-- AUTHOR
-- Dennis Vadura, dvadura@dmake.wticorp.com
--
-- WWW
-- http://dmake.wticorp.com/
--
-- COPYRIGHT
-- Copyright (c) 1996,1997 by WTI Corp. All rights reserved.
--
-- This program is NOT free software; you can redistribute it and/or
-- modify it under the terms of the Software License Agreement Provided
-- in the file <distribution-root>/readme/license.txt.
--
-- LOG
-- Use cvs log to obtain detailed change logs.
*/
/*LINTLIBRARY*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <process.h>
#if defined(max)
# undef max
#endif
#define max(A,B) (((A)<(B))?(B):(A))
extern char *mktemp();
extern int access();
int d_access();
/* MSC stdio.h defines P_tmpdir, so let's undo it here */
/* Under DOS leave the default tmpdir pointing here! */
#ifdef P_tmpdir
#undef P_tmpdir
#endif
static char *P_tmpdir = "";
char *
dtempnam(dir, prefix)
char *dir; /* use this directory please (if non-NULL) */
char *prefix; /* use this (if non-NULL) as filename prefix */
{
static int count = 0;
register char *p, *q, *tmpdir;
int tl=0, dl=0, pl;
char buf[30];
pl = strlen(P_tmpdir);
if( (tmpdir = getenv("TMPDIR")) != NULL ) tl = strlen(tmpdir);
else if( (tmpdir = getenv("TMP")) != NULL ) tl = strlen(tmpdir);
if( dir != NULL ) dl = strlen(dir);
if( (p = malloc((unsigned)(max(max(dl,tl),pl)+13))) == NULL )
return(NULL);
*p = '\0';
if( (tl == 0) || (d_access( strcpy(p, tmpdir), 0) != 0) )
if( (dl == 0) || (d_access( strcpy(p, dir), 0) != 0) )
if( d_access( strcpy(p, P_tmpdir), 0) != 0 )
if( !prefix )
prefix = "tp";
if(prefix)
{
*(p+strlen(p)+2) = '\0';
(void)strncat(p, prefix, 2);
}
sprintf( buf, "%08x", getpid() );
buf[6]='\0';
(void)strcat(p, buf );
sprintf( buf, "%04d", count++ );
q=p+strlen(p)-6;
*q++ = buf[0]; *q++ = buf[1];
*q++ = buf[2]; *q++ = buf[3];
if( (q = strrchr(p,'.')) != NULL ) *q = '\0';
return(p);
}
d_access( name, flag )
char *name;
int flag;
{
extern char *DirSepStr;
char *p;
int r;
if( name == NULL || !*name ) return(1); /* NULL dir means current dir */
r = access( name, flag );
p = name+strlen(name)-1;
if(*p != '/' && *p != '\\') strcat( p, DirSepStr );
return( r );
}
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