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utils-std

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

symbolize_mode.c (1470B)

    

  1. // Collection of Unix tools, comparable to coreutils
  2. // SPDX-FileCopyrightText: 2017 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
  3. // SPDX-License-Identifier: MPL-2.0
  5. #define _POSIX_C_SOURCE 200809L
  6. #define _XOPEN_SOURCE 700 // S_ISVTX, S_IFMT, S_IFDIR, …
  7. #include "bitmasks.h"
  8. #include "mode.h"
  10. #include <sys/stat.h>
  12. void
  13. symbolize_mode(mode_t mode, char str[11])
  14. {
  15. 	switch(mode & S_IFMT)
  16. 	{
  17. 	case S_IFDIR:
  18. 		str[0] = 'd';
  19. 		break;
  20. 	case S_IFCHR:
  21. 		str[0] = 'c';
  22. 		break;
  23. 	case S_IFBLK:
  24. 		str[0] = 'b';
  25. 		break;
  26. 	case S_IFREG:
  27. 		str[0] = '-';
  28. 		break;
  29. 	case S_IFIFO:
  30. 		str[0] = 'f';
  31. 		break;
  32. 	case S_IFLNK:
  33. 		str[0] = 'l';
  34. 		break;
  35. 	case S_IFSOCK:
  36. 		str[0] = 's';
  37. 		break;
  38. 	default:
  39. 		str[0] = '?';
  40. 		break;
  41. 	}
  43. 	str[1] = FIELD_MATCH(mode, S_IRUSR) ? 'r' : '-';
  44. 	str[2] = FIELD_MATCH(mode, S_IWUSR) ? 'w' : '-';
  45. 	if(FIELD_MATCH(mode, S_ISUID))
  46. 		str[3] = FIELD_MATCH(mode, S_IXUSR) ? 's' : 'S';
  47. 	else
  48. 		str[3] = FIELD_MATCH(mode, S_IXUSR) ? 'x' : '-';
  50. 	str[4] = FIELD_MATCH(mode, S_IRGRP) ? 'r' : '-';
  51. 	str[5] = FIELD_MATCH(mode, S_IWGRP) ? 'w' : '-';
  52. 	if(FIELD_MATCH(mode, S_ISGID))
  53. 		str[6] = FIELD_MATCH(mode, S_IXGRP) ? 's' : 'S';
  54. 	else
  55. 		str[6] = FIELD_MATCH(mode, S_IXGRP) ? 'x' : '-';
  57. 	str[7] = FIELD_MATCH(mode, S_IROTH) ? 'r' : '-';
  58. 	str[8] = FIELD_MATCH(mode, S_IWOTH) ? 'w' : '-';
  59. 	if(FIELD_MATCH(mode, S_ISVTX))
  60. 		str[9] = FIELD_MATCH(mode, S_IXOTH) ? 't' : 'T';
  61. 	else
  62. 		str[9] = FIELD_MATCH(mode, S_IXOTH) ? 'x' : '-';
  64. 	str[10] = '\0';
  65. }