107 lines
2.8 KiB
C
107 lines
2.8 KiB
C
/*
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* Copyright (c) 2017 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* 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 WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* test-unix-socket-shutdown.c
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* Tests whether unix sockets shut down correctly.
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*/
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#include <sys/socket.h>
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#include <sys/wait.h>
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#include <signal.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include "test.h"
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static void test(bool test_read,
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bool parent_shutdown,
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bool child_shutdown,
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bool sigpipe)
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{
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int fds[2];
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test_assert(socketpair(AF_UNIX, SOCK_STREAM, 0, fds) == 0);
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pid_t child_pid;
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test_assert(0 <= (child_pid = fork()));
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if ( child_pid == 0 )
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{
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if ( !test_read && !sigpipe )
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signal(SIGPIPE, SIG_IGN);
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if ( child_shutdown )
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{
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if ( test_read )
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test_assert(shutdown(fds[0], SHUT_RD) == 0);
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else
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test_assert(shutdown(fds[0], SHUT_WR) == 0);
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}
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close(fds[1]);
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char c;
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if ( test_read )
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{
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ssize_t amount;
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test_assert(0 <= (amount = read(fds[0], &c, 1)));
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test_assertx(amount == 0);
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_exit(0);
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}
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else
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{
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while ( true )
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{
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c = 'X';
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ssize_t amount = write(fds[0], &c, 1);
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if ( !sigpipe && amount == -1 && errno == EPIPE )
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_exit(0);
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test_assert(0 <= amount);
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test_assertx(amount == 1);
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}
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}
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}
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close(fds[0]);
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if ( parent_shutdown )
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{
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if ( test_read )
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test_assert(shutdown(fds[1], SHUT_WR) == 0);
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else
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test_assert(shutdown(fds[1], SHUT_RD) == 0);
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}
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else if ( !parent_shutdown && !child_shutdown )
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close(fds[1]);
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int status;
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test_assert(waitpid(child_pid, &status, 0) == child_pid);
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if ( test_read || !sigpipe )
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test_assertx(WIFEXITED(status) && WEXITSTATUS(status) == 0);
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else
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test_assertx(WIFSIGNALED(status) && WTERMSIG(status) == SIGPIPE);
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if ( parent_shutdown || child_shutdown )
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close(fds[1]);
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}
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int main(void)
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{
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test(false, false, false, false);
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test(true, false, false, false);
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test(true, false, false, true);
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test(false, true, false, false);
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test(true, true, false, false);
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test(true, true, false, true);
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test(false, false, true, false);
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test(true, false, true, false);
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test(true, false, true, true);
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test(false, true, true, false);
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test(true, true, true, false);
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test(true, true, true, true);
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return 0;
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}
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