external/bsd/atf/dist/atf-c/detail/process_helpers.c

   1 /*
   2  * Automated Testing Framework (atf)
   3  *
   4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
  17  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
  21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <sys/types.h>
  31
  32 #include <assert.h> /* NO_CHECK_STYLE */
  33 #include <signal.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <unistd.h>
  38
  39 static
  40 int
  41 h_echo(const char *msg)
  42 {
  43     printf("%s\n", msg);
  44     return EXIT_SUCCESS;
  45 }
  46
  47 static
  48 int
  49 h_exit_failure(void)
  50 {
  51     return EXIT_FAILURE;
  52 }
  53
  54 static
  55 int
  56 h_exit_signal(void)
  57 {
  58     kill(getpid(), SIGKILL);
  59     assert(0); /* NO_CHECK_STYLE */
  60     return EXIT_FAILURE;
  61 }
  62
  63 static
  64 int
  65 h_exit_success(void)
  66 {
  67     return EXIT_SUCCESS;
  68 }
  69
  70 static
  71 int
  72 h_stdout_stderr(const char *id)
  73 {
  74     fprintf(stdout, "Line 1 to stdout for %s\n", id);
  75     fprintf(stdout, "Line 2 to stdout for %s\n", id);
  76     fprintf(stderr, "Line 1 to stderr for %s\n", id);
  77     fprintf(stderr, "Line 2 to stderr for %s\n", id);
  78
  79     return EXIT_SUCCESS;
  80 }
  81
  82 static
  83 void
  84 check_args(const int argc, const char *const argv[], const int required)
  85 {
  86     if (argc < required) {
  87         fprintf(stderr, "Usage: %s helper-name [args]\n", argv[0]);
  88         exit(EXIT_FAILURE);
  89     }
  90 }
  91
  92 int
  93 main(int argc, const char *const argv[])
  94 {
  95     int exitcode;
  96
  97     check_args(argc, argv, 2);
  98
  99     if (strcmp(argv[1], "echo") == 0) {
 100         check_args(argc, argv, 3);
 101         exitcode = h_echo(argv[2]);
 102     } else if (strcmp(argv[1], "exit-failure") == 0)
 103         exitcode = h_exit_failure();
 104     else if (strcmp(argv[1], "exit-signal") == 0)
 105         exitcode = h_exit_signal();
 106     else if (strcmp(argv[1], "exit-success") == 0)
 107         exitcode = h_exit_success();
 108     else if (strcmp(argv[1], "stdout-stderr") == 0) {
 109         check_args(argc, argv, 3);
 110         exitcode = h_stdout_stderr(argv[2]);
 111     } else {
 112         fprintf(stderr, "%s: Unknown helper %s\n", argv[0], argv[1]);
 113         exitcode = EXIT_FAILURE;
 114     }
 115
 116     return exitcode;
 117 }