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/*
* SCCS: @(#)mktmpdir.c 1.3 (98/09/01)
*
* UniSoft Ltd., London, England
*
* (C) Copyright 1996 X/Open Company Limited
*
* All rights reserved. No part of this source code may be reproduced,
* stored in a retrieval system, or transmitted, in any form or by any
* means, electronic, mechanical, photocopying, recording or otherwise,
* except as stated in the end-user licence agreement, without the prior
* permission of the copyright owners.
* A copy of the end-user licence agreement is contained in the file
* Licence which accompanies this distribution.
*
* X/Open and the 'X' symbol are trademarks of X/Open Company Limited in
* the UK and other countries.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
/************************************************************************
SCCS: @(#)mktmpdir.c 1.3 98/09/01 TETware release 3.3
NAME: mktmpdir.c
PRODUCT: TETware
AUTHOR: Andrew Dingwall, UniSoft Ltd.
DATE CREATED: October 1996
DESCRIPTION:
tcc action function - make a unique temporary directory
this function moved from tccd/stcc.c to here
MODIFICATIONS:
Andrew Dingwall, UniSoft Ltd., March 1998
Added an extra salt character to the unique directory name so as
to enable more instances of a test case to execute in parallel.
Andrew Dingwall, UniSoft Ltd., July 1998
Added support for shared API libraries.
************************************************************************/
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "dtmac.h"
#include "dtmsg.h"
#include "error.h"
#include "globals.h"
#include "ltoa.h"
#include "dtetlib.h"
#include "tcclib.h"
/* mode for created directory */
#define MODEANY ((mode_t) (S_IRWXU | S_IRWXG | S_IRWXO))
/* static function declarations */
static int tcf_mktd2 PROTOLIST((char *));
/*
** tcf_mktmpdir() - make a unique temporary directory
**
** return ER_OK if successful or other ER_* code on error
**
** if successful, the name of the temporary directory is returned
** indirectly through *subdp
*/
int tcf_mktmpdir(dir, subdp)
char *dir, **subdp;
{
register int needlen, rc;
char salt1, salt2;
char pidstr[LNUMSZ];
static char *subdir;
static int sdlen;
extern int tet_mypid;
/* do a sanity check on the input arguments */
ASSERT(dir && *dir);
/* format the pid string */
(void) sprintf(pidstr, "%05u", tet_mypid);
/* get a buffer for the tmp dir name */
needlen = strlen(dir) + strlen(pidstr) + 4;
if (BUFCHK(&subdir, &sdlen, needlen) < 0)
return(ER_ERR);
/* try to make the directory a few times */
for (salt1 = 'a'; salt1 <= 'z'; salt1++)
for (salt2 = 'a'; salt2 <= 'z'; salt2++) {
(void) sprintf(subdir, "%s/%s%c%c",
dir, pidstr, salt1, salt2);
if ((rc = tcf_mktd2(subdir)) < 0)
return(rc);
else if (rc > 0) {
*subdp = subdir;
return(ER_OK);
}
}
/* here if we are out of suffix letters */
error(0, "out of tmp subdir names in", dir);
return(ER_ERR);
}
/*
** tcf_mktd2() - extend the tcf_mktmpdir() processing
**
** try to make the specified directory
**
** return 1 if successful
** 0 to try the next tmpdir name
** -ve error code on error
*/
static int tcf_mktd2(subdir)
char *subdir;
{
int errsave, rc;
TRACE2(Ttcclib, 6, "tcf_mktmpdir(): try \"%s\"", subdir);
/* attempt to make the directory */
if (tet_mkdir(subdir, MODEANY) < 0) {
if (errno == EEXIST)
return(0);
else {
errsave = errno;
if ((rc = tet_maperrno(errsave)) == ER_ERR)
error(errsave, "can't make directory", subdir);
errno = errsave;
return(rc);
}
}
/* here if the directory could be created successfully */
TRACE2(Ttcclib, 4, "tcf_mktmpdir(): return \"%s\"", subdir);
return(1);
}
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