/*
*
* Copyright (c) 1987, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* * Portions Copyright (c) 2005-2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)mktemp.c 8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libc/stdio/mktemp.c,v 1.28 2003/02/16 17:29:10 nectar Exp $");
#include "namespace.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include "un-namespace.h"
#include <fcntl.h>
#include "common_def.h"
#ifndef __SYMBIAN32__
char *_mktemp(char *);
static int _gettemp(char *, int *, int, int);
#else
// _mktempfile accepts an extra parameter for flag
// flag will be O_TMPFILE for a call by tmpfile and 0 for tempnam and mkstemp
char *_mktemp(char *, int);
static int _gettemp(char *, int *, int, int, int);
int _mktmpfile(char *, int);
#endif
static const unsigned char padchar[] =
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
#ifdef __SYMBIAN_COMPILE_UNUSED__
int
mkstemps(path, slen)
char *path;
int slen;
{
int fd;
return (_gettemp(path, &fd, 0, slen) ? fd : -1);
}
#endif
EXPORT_C
int
mkstemp(path)
char *path;
{
int fd;
#ifndef __SYMBIAN32__
return (_gettemp(path, &fd, 0, 0) ? fd : -1);
#else
return (_gettemp(path, &fd, 0, 0, 0) ? fd : -1);
#endif
}
#ifdef __SYMBIAN_COMPILE_UNUSED__
char *
mkdtemp(path)
char *path;
{
return (_gettemp(path, (int *)NULL, 1, 0) ? path : (char *)NULL);
}
#endif
#ifndef __SYMBIAN32__
char *
_mktemp(path)
char *path;
#else
char *
_mktemp(path, flag)
char *path;
int flag;
#endif //__SYMBIAN32__
{
#ifndef __SYMBIAN32__
return (_gettemp(path, (int *)NULL, 0, 0) ? path : (char *)NULL);
#else
return (_gettemp(path, (int *)NULL, 0, 0, flag) ? path : (char *)NULL);
#endif
}
#ifndef __SYMBIAN32__
__warn_references(mktemp,
"warning: mktemp() possibly used unsafely; consider using mkstemp()");
#endif //__SYMBIAN32__
#ifdef __SYMBIAN_COMPILE_UNUSED__
char *
mktemp(path)
char *path;
{
return (_mktemp(path));
}
#endif
#ifdef __SYMBIAN32__
int
_mktmpfile(buf, flag)
char *buf;
int flag;
{
int fd;
return (_gettemp(buf, &fd, 0, 0, flag) ? fd : -1);
}
#endif //__SYMBIAN32__
#ifdef __SYMBIAN32__
static int
_gettemp(path, doopen, domkdir, slen, sflag)
char *path;
int *doopen;
int domkdir;
int slen;
int sflag;
#else
_gettemp(path, doopen, domkdir, slen)
char *path;
int *doopen;
int domkdir;
int slen;
#endif //__SYMBIAN32__
{
char *start, *trv, *suffp;
char *pad;
struct stat sbuf;
int rval;
uint32_t rand;
#ifdef __SYMBIAN32__
int count;
size_t len = strlen(path);
#endif //__SYMBIAN32__
if (doopen != NULL && domkdir) {
errno = EINVAL;
return (0);
}
#ifdef __SYMBIAN32__
// A single mkdir call introduced below instead of two separate
// calls from tempnam.c and tmpfile.c
if (sflag)
{
char *f = P_tmpdir;
if (mkdir(f, 0666) == -1)
{
if (errno != EEXIST)
{
return -1; //return from here
}
}
}
#endif//__SYMBIAN32__
for (trv = path; *trv != '\0'; ++trv)
;
trv -= slen;
suffp = trv;
--trv;
#ifdef __SYMBIAN32__
if (trv < path || len < 6 || strcmp(&path[len - 6], "XXXXXX")) {
#else
if (trv < path) {
#endif //__SYMBIAN32__
errno = EINVAL;
return (0);
}
/* Fill space with random characters */
#ifndef __SYMBIAN32__
while (trv >= path && *trv == 'X') {
#else
count = 0;
while (trv >= path && count < 6) {
#endif //__SYMBIAN32__
rand = arc4random() % (sizeof(padchar) - 1);
*trv-- = padchar[rand];
#ifdef __SYMBIAN32__
count++;
#endif //__SYMBIAN32__
}
start = trv + 1;
/*
* check the target directory.
*/
if (doopen != NULL || domkdir) {
for (; trv > path; --trv) {
if (*trv == '/') {
*trv = '\0';
rval = stat(path, &sbuf);
*trv = '/';
if (rval != 0)
return (0);
if (!S_ISDIR(sbuf.st_mode)) {
errno = ENOTDIR;
return (0);
}
break;
}
}
}
for (;;) {
if (doopen) {
#ifndef __SYMBIAN32__
if ((*doopen =
_open(path, O_CREAT|O_EXCL|O_RDWR, 0600)) >= 0)
#else
if ((*doopen =
_open(path, O_CREAT|O_EXCL|O_RDWR|sflag, 0600)) >= 0)
#endif//__SYMBIAN32__
return (1);
if (errno != EEXIST)
return (0);
} else if (domkdir) {
if (mkdir(path, 0700) == 0)
return (1);
if (errno != EEXIST)
return (0);
} else if (lstat(path, &sbuf))
return (errno == ENOENT);
/* If we have a collision, cycle through the space of filenames */
for (trv = start;;) {
if (*trv == '\0' || trv == suffp)
return (0);
#ifdef __SYMBIAN32__
pad = strchr((const char *)padchar, *trv);
#else
pad = strchr(padchar, *trv);
#endif //__SYMBIAN32__
if (pad == NULL || *++pad == '\0')
*trv++ = padchar[0];
else {
*trv++ = *pad;
break;
}
}
}
/*NOTREACHED*/
}