114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
/* Copyright (c) 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
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* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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#include <sys/types.h>
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#include <assert.h> /* NO_CHECK_STYLE */
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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static
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int
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h_echo(const char *msg)
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{
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printf("%s\n", msg);
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return EXIT_SUCCESS;
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}
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static
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int
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h_exit_failure(void)
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{
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return EXIT_FAILURE;
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}
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static
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int
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h_exit_signal(void)
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{
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kill(getpid(), SIGKILL);
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assert(0); /* NO_CHECK_STYLE */
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return EXIT_FAILURE;
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}
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static
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int
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h_exit_success(void)
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{
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return EXIT_SUCCESS;
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}
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static
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int
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h_stdout_stderr(const char *id)
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{
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fprintf(stdout, "Line 1 to stdout for %s\n", id);
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fprintf(stdout, "Line 2 to stdout for %s\n", id);
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fprintf(stderr, "Line 1 to stderr for %s\n", id);
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fprintf(stderr, "Line 2 to stderr for %s\n", id);
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return EXIT_SUCCESS;
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}
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static
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void
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check_args(const int argc, const char *const argv[], const int required)
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{
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if (argc < required) {
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fprintf(stderr, "Usage: %s helper-name [args]\n", argv[0]);
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exit(EXIT_FAILURE);
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}
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}
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int
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main(int argc, const char *const argv[])
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{
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int exitcode;
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check_args(argc, argv, 2);
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if (strcmp(argv[1], "echo") == 0) {
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check_args(argc, argv, 3);
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exitcode = h_echo(argv[2]);
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} else if (strcmp(argv[1], "exit-failure") == 0)
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exitcode = h_exit_failure();
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else if (strcmp(argv[1], "exit-signal") == 0)
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exitcode = h_exit_signal();
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else if (strcmp(argv[1], "exit-success") == 0)
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exitcode = h_exit_success();
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else if (strcmp(argv[1], "stdout-stderr") == 0) {
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check_args(argc, argv, 3);
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exitcode = h_stdout_stderr(argv[2]);
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} else {
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fprintf(stderr, "%s: Unknown helper %s\n", argv[0], argv[1]);
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exitcode = EXIT_FAILURE;
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}
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return exitcode;
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}
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