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https://github.com/jart/cosmopolitan.git
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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
62 lines
2.8 KiB
C
62 lines
2.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2023 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/calls/calls.h"
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#include "libc/errno.h"
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#include "libc/fmt/itoa.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/str/str.h"
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#include "libc/sysv/consts/f.h"
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#define MIN_CLANDESTINE_FD 100 // e.g. kprintf's dup'd handle
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void CheckForFileLeaks(void) {
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char msg[512];
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char *p = msg;
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char *pe = msg + 256;
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bool gotsome = false;
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for (int fd = 3; fd < MIN_CLANDESTINE_FD; ++fd) {
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if (fcntl(fd, F_GETFL) != -1) {
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if (!gotsome) {
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p = stpcpy(p, program_invocation_short_name);
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p = stpcpy(p, ": FILE DESCRIPTOR LEAKS:");
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gotsome = true;
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}
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if (p + 1 + 12 + 1 < pe) {
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*p++ = ' ';
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p = FormatInt32(p, fd);
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} else {
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break;
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}
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}
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}
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if (gotsome) {
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*p++ = '\n';
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*p = 0;
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write(2, msg, p - msg);
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char proc[64];
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p = proc;
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p = stpcpy(p, "ls -hal /proc/");
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p = FormatInt32(p, getpid());
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p = stpcpy(p, "/fd");
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system(proc);
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exit(1);
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}
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}
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