mirror of
https://github.com/jart/cosmopolitan.git
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74 lines
3 KiB
C
74 lines
3 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 2022 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/assert.h"
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#include "libc/fmt/itoa.h"
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#include "libc/fmt/magnumstrs.internal.h"
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#include "libc/intrin/describeflags.h"
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#include "libc/macros.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/consts/sol.h"
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#define N (4096 / 2 / sizeof(struct DescribeFlags))
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/**
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* Describes clock_gettime() clock argument.
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*/
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const char *_DescribeOpenFlags(char buf[128], int x) {
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char *p;
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int i, n;
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const char *pipe;
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struct DescribeFlags d[N];
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if (x == -1)
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return "-1";
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p = buf;
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switch (x & O_ACCMODE) {
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case O_RDONLY:
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p = stpcpy(p, "O_RDONLY");
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x &= ~O_ACCMODE;
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pipe = "|";
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break;
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case O_WRONLY:
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p = stpcpy(p, "O_WRONLY");
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x &= ~O_ACCMODE;
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pipe = "|";
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break;
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case O_RDWR:
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p = stpcpy(p, "O_RDWR");
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x &= ~O_ACCMODE;
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pipe = "|";
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break;
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default:
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pipe = "";
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break;
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}
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if (x) {
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p = stpcpy(p, pipe);
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for (n = 0; kOpenFlags[n].x != MAGNUM_TERMINATOR; ++n) {
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if (n == N)
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notpossible;
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}
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for (i = 0; i < n; ++i) {
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d[i].flag = MAGNUM_NUMBER(kOpenFlags, i);
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d[i].name = MAGNUM_STRING(kOpenFlags, i);
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}
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_DescribeFlags(p, 128 - (p - buf), d, n, "O_", x);
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}
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return buf;
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}
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