/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│ │vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│ ╞══════════════════════════════════════════════════════════════════════════════╡ │ Copyright 2021 Justine Alexandra Roberts Tunney │ │ │ │ Permission to use, copy, modify, and/or distribute this software for │ │ any purpose with or without fee is hereby granted, provided that the │ │ above copyright notice and this permission notice appear in all copies. │ │ │ │ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │ │ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │ │ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │ │ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │ │ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │ │ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │ │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │ │ PERFORMANCE OF THIS SOFTWARE. │ ╚─────────────────────────────────────────────────────────────────────────────*/ #include "libc/calls/calls.h" #include "libc/calls/sigbits.h" #include "libc/calls/struct/sigaction.h" #include "libc/dce.h" #include "libc/errno.h" #include "libc/runtime/runtime.h" #include "libc/sysv/consts/sa.h" #include "libc/sysv/consts/sig.h" #include "libc/testlib/testlib.h" bool gotsigint; void OnSigInt(int sig) { gotsigint = true; } TEST(sigaction, test) { /* TODO(jart): Why does RHEL5 behave differently? */ /* TODO(jart): Windows needs huge signal overhaul */ if (IsWindows()) return; int pid, status; sigset_t block, ignore, oldmask; struct sigaction saint = {.sa_handler = OnSigInt}; sigemptyset(&block); sigaddset(&block, SIGINT); EXPECT_NE(-1, sigprocmask(SIG_BLOCK, &block, &oldmask)); sigfillset(&ignore); sigdelset(&ignore, SIGINT); EXPECT_NE(-1, sigaction(SIGINT, &saint, NULL)); ASSERT_NE(-1, (pid = fork())); if (!pid) { EXPECT_NE(-1, kill(getppid(), SIGINT)); EXPECT_EQ(-1, sigsuspend(&ignore)); EXPECT_EQ(EINTR, errno); EXPECT_TRUE(gotsigint); _exit(0); } EXPECT_EQ(-1, sigsuspend(&ignore)); EXPECT_NE(-1, kill(pid, SIGINT)); EXPECT_NE(-1, waitpid(pid, &status, 0)); EXPECT_EQ(1, WIFEXITED(status)); EXPECT_EQ(0, WEXITSTATUS(status)); EXPECT_EQ(0, WTERMSIG(status)); EXPECT_NE(-1, sigprocmask(SIG_BLOCK, &oldmask, NULL)); }