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utils-std

Collection of commonly available Unix tools git clone https://anongit.hacktivis.me/git/utils-std.git

mkdir.c (2227B)

    

  1. // utils-std: Collection of commonly available Unix tools
  2. // SPDX-FileCopyrightText: 2017 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
  3. // SPDX-License-Identifier: MPL-2.0
  5. #define _POSIX_C_SOURCE 200809L
  7. #include "../lib/mkdir.h"
  9. #include "../lib/mode.h"
  11. #include <assert.h>
  12. #include <errno.h>
  13. #include <stdbool.h>
  14. #include <stdio.h>    // fprintf
  15. #include <stdlib.h>   // abort
  16. #include <string.h>   // strerror
  17. #include <sys/stat.h> // mkdir
  18. #include <unistd.h>   // getopt
  20. const char *argv0 = "mkdir";
  22. bool mkdir_parents_verbose = false;
  23. mode_t mkdir_parents_filemask;
  25. static int
  26. mkdir_simple(char *path, mode_t mode)
  27. {
  28. 	assert(errno == 0);
  29. 	if(mkdir(path, mode) < 0)
  30. 	{
  31. 		fprintf(stderr, "mkdir: Failed making directory '%s': %s\n", path, strerror(errno));
  32. 		errno = 0;
  33. 		return -1;
  34. 	}
  36. 	if(mkdir_parents_verbose) fprintf(stderr, "mkdir: Made directory: %s\n", path);
  38. 	return 0;
  39. }
  41. static void
  42. usage(void)
  43. {
  44. 	fprintf(stderr, "Usage: mkdir [-pv] [-m mode] path ...\n");
  45. }
  47. int
  48. main(int argc, char *argv[])
  49. {
  50. 	mkdir_parents_filemask = umask(0);
  51. 	umask(mkdir_parents_filemask);
  53. 	// clang-format off
  54. 	mode_t mode = (S_IRWXU | S_IRWXG | S_IRWXO | ~mkdir_parents_filemask) & 0777;
  55. 	bool opt_p = false;
  56. 	const char *errstr = NULL;
  57. 	// clang-format on
  59. 	int c = -1;
  60. 	while((c = getopt(argc, argv, ":pvm:")) != -1)
  61. 	{
  62. 		switch(c)
  63. 		{
  64. 		case 'p':
  65. 			opt_p = true;
  66. 			break;
  67. 		case 'v':
  68. 			mkdir_parents_verbose = true;
  69. 			break;
  70. 		case 'm':
  71. 			mode = new_mode(optarg, 0777, &errstr);
  72. 			if(errstr != NULL)
  73. 			{
  74. 				fprintf(stderr, "mkdir: Failed parsing mode '%s': %s\n", optarg, errstr);
  75. 				return 1;
  76. 			}
  77. 			break;
  78. 		case ':':
  79. 			fprintf(stderr, "mkdir: Error: Missing operand for option: '-%c'\n", optopt);
  80. 			usage();
  81. 			return 1;
  82. 		case '?':
  83. 			fprintf(stderr, "mkdir: Error: Unrecognised option: '-%c'\n", optopt);
  84. 			usage();
  85. 			return 1;
  86. 		default:
  87. 			abort();
  88. 		}
  89. 	}
  91. 	argc -= optind;
  92. 	argv += optind;
  94. 	assert(errno == 0);
  96. 	if(argc < 1)
  97. 	{
  98. 		fprintf(stderr, "mkdir: Missing operand\n");
  99. 		usage();
  100. 		return 1;
  101. 	}
  103. 	for(int i = 0; i < argc; i++)
  104. 	{
  105. 		int ret = 0;
  107. 		if(opt_p)
  108. 			ret = mkdir_parents(argv[i], mode);
  109. 		else
  110. 			ret = mkdir_simple(argv[i], mode);
  112. 		if(ret < 0) return 1;
  113. 	}
  115. 	return 0;
  116. }