mirror of
https://github.com/jart/cosmopolitan.git
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2046c0d2ae
- Expand redbean UNIX module - Expand redbean documentation - Ensure Lua copyright is embedded in binary - Increase the PATH_MAX limit especially on NT - Use column major sorting for linenoise completions - Fix some suboptimalities in redbean's new UNIX API - Figured out right flags for Multics newline in raw mode
57 lines
2.9 KiB
C
57 lines
2.9 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/bits.h"
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#include "libc/fmt/magnumstrs.internal.h"
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#include "libc/macros.internal.h"
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#include "libc/str/str.h"
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static char g_strsignal[12];
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/**
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* Returns string describing signal code.
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*
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* This returns SIGUNKNOWN for 0 which is the empty value. Textual names
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* should be available for signals 1 through 32. Signals in the range 33
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* and 128 are returned as a `SIG%03d` string. Everything else is SIGWUT
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*
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* @param sig is signal number which should be in range 1 through 128
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* @return pointer to static memory that mutates on subsequent calls
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* @see sigaction()
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*/
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char *strsignal(int sig) {
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const char *s;
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strcpy(g_strsignal, "SIG");
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if (sig) {
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if ((s = GetMagnumStr(kSignalNames, sig))) {
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strcpy(g_strsignal + 3, s);
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return g_strsignal;
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}
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}
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if (!sig) {
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strcpy(g_strsignal + 3, "UNKNOWN");
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} else if (1 <= sig && sig <= 128) {
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g_strsignal[3] = '0' + sig / 100;
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g_strsignal[4] = '0' + sig / 10 % 10;
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g_strsignal[5] = '0' + sig % 10;
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g_strsignal[6] = 0;
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} else {
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strcpy(g_strsignal + 3, "WUT");
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}
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return g_strsignal;
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}
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