Enrico Fraccaroli
37 lines
929 B
C
37 lines
929 B
C
/// @file touch.c
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/// @brief
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/// @copyright (c) 2014-2023 This file is distributed under the MIT License.
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/// See LICENSE.md for details.
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#include <sys/unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include <fcntl.h>
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int main(int argc, char** argv)
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{
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if (argc != 2) {
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printf("%s: missing operand.\n", argv[0]);
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printf("Try '%s --help' for more information.\n\n", argv[0]);
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return 1;
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}
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if (strcmp(argv[1], "--help") == 0) {
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printf(
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"Updates modification times of a given fine. If the does not"
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"exists, it creates it.\n"
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);
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printf("Usage:\n");
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printf(" touch <filename>\n");
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return 0;
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}
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int fd = open(argv[1], O_RDONLY, 0);
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if (fd < 0) {
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fd = open(argv[1], O_CREAT, S_IWUSR | S_IRUSR | S_IRGRP | S_IROTH);
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if (fd >= 0) {
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close(fd);
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}
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}
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printf("\n");
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return 0;
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}
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