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98 lines
1.7 KiB
98 lines
1.7 KiB
4 months ago
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz>
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*/
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define TST_NO_DEFAULT_MAIN
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#include "tst_test.h"
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#include "old/old_device.h"
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extern struct tst_test *tst_test;
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static struct tst_test test = {
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};
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static void print_help(void)
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{
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fprintf(stderr, "\nUsage: tst_device acquire [size]\n");
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fprintf(stderr, " or: tst_device release /path/to/device\n\n");
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}
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static int acquire_device(int argc, char *argv[])
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{
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unsigned int size = 0;
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const char *device;
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if (argc > 3)
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return 1;
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if (argc == 3) {
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size = atoi(argv[2]);
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if (!size) {
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fprintf(stderr, "ERROR: Invalid device size '%s'",
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argv[2]);
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return 1;
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}
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}
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device = tst_acquire_device__(size);
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if (!device)
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return 1;
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if (tst_clear_device(device)) {
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tst_release_device(device);
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return 1;
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}
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printf("%s", device);
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return 0;
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}
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static int release_device(int argc, char *argv[])
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{
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if (argc != 3)
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return 1;
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return tst_release_device(argv[2]);
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}
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int main(int argc, char *argv[])
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{
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/*
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* Force messages to be printed from the new library i.e. tst_test.c
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*
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* The new library prints messages into stderr while the old one prints
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* them into stdout. When messages are printed into stderr we can
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* safely do:
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*
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* DEV=$(tst_device acquire)
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*/
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tst_test = &test;
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if (argc < 2)
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goto help;
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if (!strcmp(argv[1], "acquire")) {
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if (acquire_device(argc, argv))
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goto help;
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} else if (!strcmp(argv[1], "release")) {
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if (release_device(argc, argv))
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goto help;
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} else {
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fprintf(stderr, "ERROR: Invalid COMMAND '%s'\n", argv[1]);
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goto help;
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}
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return 0;
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help:
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print_help();
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return 1;
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}
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