vkdoom_m/libraries/ZMusic/thirdparty/libxmp/src/mkstemp.c
2025-07-30 00:24:15 -04:00

105 lines
2.8 KiB
C

#ifdef __SUNPRO_C
#pragma error_messages (off,E_EMPTY_TRANSLATION_UNIT)
#endif
#include "common.h"
#if !(defined(LIBXMP_NO_PROWIZARD) && defined(LIBXMP_NO_DEPACKERS))
#ifndef HAVE_MKSTEMP
/*
* Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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.
*
* 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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.
*/
#include <fcntl.h>
#include <errno.h>
#ifdef _WIN32
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#endif
#if defined(_MSC_VER) || defined(__WATCOMC__)
#include <io.h>
#else
#include <unistd.h>
#endif
#ifdef _MSC_VER
#include <process.h>
#define open _open
#endif
#ifndef O_BINARY
#define O_BINARY 0
#endif
int mkstemp(char *pattern)
{
int start, i;
#ifdef _WIN32
int val = GetCurrentProcessId();
#else
pid_t val = getpid();
#endif
start = strlen(pattern) - 1;
while (pattern[start] == 'X') {
pattern[start] = '0' + val % 10;
val /= 10;
start--;
}
do {
int fd;
fd = open(pattern, O_RDWR | O_CREAT | O_EXCL | O_BINARY, 0600);
if (fd >= 0 || errno != EEXIST)
return fd;
i = start + 1;
do {
if (pattern[i] == 0)
return -1;
pattern[i]++;
if (pattern[i] == '9' + 1)
pattern[i] = 'a';
if (pattern[i] <= 'z')
break;
pattern[i] = 'a';
i++;
} while (1);
} while (1);
}
#endif
#endif