mirror of
https://github.com/jart/cosmopolitan.git
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47b3274665
- Add rusage to redbean Lua API - Add more redbean documentation - Add pledge() to redbean Lua API - Polyfill OpenBSD pledge() for Linux - Increase PATH_MAX limit to 1024 characters - Untrack sibling processes after fork() on Windows
45 lines
2.5 KiB
C
45 lines
2.5 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/bits/safemacros.internal.h"
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#include "libc/calls/calls.h"
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#include "libc/fmt/fmt.h"
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#include "libc/macros.internal.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/stdio/temp.h"
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#include "libc/str/str.h"
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/**
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* Creates a temporary file.
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*
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* @see mkostempsm(), kTmpPath
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*/
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FILE *tmpfile(void) {
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int fd;
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char *tmp, *sep, tpl[PATH_MAX];
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tmp = firstnonnull(getenv("TMPDIR"), kTmpPath);
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sep = !isempty(tmp) && !endswith(tmp, "/") ? "/" : "";
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if ((snprintf)(tpl, PATH_MAX, "%s%stmp.%s.XXXXXX", tmp, sep,
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program_invocation_short_name) <= PATH_MAX) {
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if ((fd = mkostemps(tpl, 0, 0)) != -1) {
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return fdopen(fd, "w+");
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}
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}
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return NULL;
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}
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