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807706a099
One of those fixups is making sure that AF_LOCAL is equal to AF_UNIX on the New Technology. See #122
57 lines
3 KiB
C
57 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 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/calls/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/sigset.h"
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#include "libc/dce.h"
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#include "libc/str/str.h"
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#include "libc/sysv/errfuns.h"
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/**
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* Changes program signal blocking state, e.g.:
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*
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* sigset_t neu,old;
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* sigfillset(&neu);
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* sigprocmask(SIG_BLOCK, &neu, &old);
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* sigprocmask(SIG_SETMASK, &old, NULL);
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*
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* @param how can be SIG_BLOCK (U), SIG_UNBLOCK (/), SIG_SETMASK (=)
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* @param set is the new mask content (optional)
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* @param oldset will receive the old mask (optional) and can't overlap
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* @return 0 on success, or -1 w/ errno
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* @asyncsignalsafe
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* @vforksafe
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*/
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int sigprocmask(int how, const sigset_t *opt_set, sigset_t *opt_out_oldset) {
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int32_t x;
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if (!IsWindows() && !IsOpenbsd()) {
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return sys_sigprocmask(how, opt_set, opt_out_oldset, 8);
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} else if (IsOpenbsd()) {
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if (!opt_set) how = 1;
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if (opt_set) opt_set = (sigset_t *)(uintptr_t)(*(uint32_t *)opt_set);
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if ((x = sys_sigprocmask(how, opt_set, 0, 0)) != -1) {
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if (opt_out_oldset) memcpy(opt_out_oldset, &x, sizeof(x));
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return 0;
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} else {
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return -1;
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}
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} else {
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return 0; /* TODO(jart): Implement me! */
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}
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}
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