// Copyright 2018 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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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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// Simple testing command, used to exercise child process launcher calls.
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//
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// Usage:
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// echo_test_helper [-x exit_code] arg0 arg1 arg2...
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// Prints arg0..n to stdout with space delimiters between args,
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// returning "exit_code" if -x is specified.
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//
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// echo_test_helper -e env_var
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// Prints the environmental variable |env_var| to stdout.
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int main(int argc, char** argv) {
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if (strcmp(argv[1], "-e") == 0) {
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if (argc != 3) {
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return 1;
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}
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const char* env = getenv(argv[2]);
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if (env != NULL) {
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printf("%s", env);
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}
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} else {
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int return_code = 0;
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int start_idx = 1;
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if (strcmp(argv[1], "-x") == 0) {
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return_code = atoi(argv[2]);
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start_idx = 3;
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}
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for (int i = start_idx; i < argc; ++i) {
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printf((i < argc - 1 ? "%s " : "%s"), argv[i]);
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}
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return return_code;
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}
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}
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