fpath.h 3.0 KB

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  1. #include <bits/errno.h>
  2. #include <bits/fcntl.h>
  3. #include <bits/time.h>
  4. #include <syscall.h>
  5. /* File path ops, stuff that mostly deals with directories. */
  6. inline static long sys_chdir(const char* path)
  7. {
  8. return syscall1(NR_chdir, (long)path);
  9. }
  10. inline static long sys_fchdir(int fd)
  11. {
  12. return syscall1(NR_fchdir, fd);
  13. }
  14. inline static long sys_getcwd(char* buf, size_t size)
  15. {
  16. return syscall2(NR_getcwd, (long)buf, size);
  17. }
  18. inline static long sys_chroot(const char* dir)
  19. {
  20. return syscall1(NR_chroot, (long)dir);
  21. }
  22. inline static long sys_mkdir(const char* path, int mode)
  23. {
  24. return syscall3(NR_mkdirat, AT_FDCWD, (long)path, mode);
  25. }
  26. inline static long sys_mkdirat(int at, const char* path, int mode)
  27. {
  28. return syscall3(NR_mkdirat, at, (long)path, mode);
  29. }
  30. inline static long sys_mknod(const char* path, int mode, int dev)
  31. {
  32. return syscall4(NR_mknodat, AT_FDCWD, (long)path, mode, dev);
  33. }
  34. inline static long sys_mknodat(int at, const char* path, int mode, int dev)
  35. {
  36. return syscall4(NR_mknodat, at, (long)path, mode, dev);
  37. }
  38. inline static long sys_rmdir(const char* dir)
  39. {
  40. return syscall3(NR_unlinkat, AT_FDCWD, (long)dir, AT_REMOVEDIR);
  41. }
  42. inline static long sys_rmdirat(int at, const char* dir)
  43. {
  44. return syscall3(NR_unlinkat, at, (long)dir, AT_REMOVEDIR);
  45. }
  46. inline static long sys_unlink(const char* name)
  47. {
  48. return syscall3(NR_unlinkat, AT_FDCWD, (long)name, 0);
  49. }
  50. inline static long sys_unlinkat(int at, const char* name, int flags)
  51. {
  52. return syscall3(NR_unlinkat, at, (long)name, flags);
  53. }
  54. inline static long sys_symlink(const char *target, const char *path)
  55. {
  56. return syscall3(NR_symlinkat, (long)target, AT_FDCWD, (long)path);
  57. }
  58. inline static long sys_symlinkat(const char *target, int at, const char *path)
  59. {
  60. return syscall3(NR_symlinkat, (long)target, at, (long)path);
  61. }
  62. inline static long sys_readlink(const char* path, char* buf, long len)
  63. {
  64. #ifdef NR_readlinkat
  65. return syscall4(NR_readlinkat, AT_FDCWD, (long)path, (long)buf, len);
  66. #else
  67. return syscall3(NR_readlink, (long)path, (long)buf, len);
  68. #endif
  69. }
  70. inline static long sys_readlinkat(int at, const char* path, char* buf, long len)
  71. {
  72. #ifdef NR_readlinkat
  73. return syscall4(NR_readlinkat, at, (long)path, (long)buf, len);
  74. #else
  75. return -ENOSYS;
  76. #endif
  77. }
  78. /* uapi/linux/fs.h */
  79. #define RENAME_NOREPLACE (1<<0)
  80. #define RENAME_EXCHANGE (1<<1)
  81. #define RENAME_WHITEOUT (1<<2)
  82. inline static long sys_rename(const char* oldpath, const char* newpath)
  83. {
  84. return syscall5(NR_renameat2, AT_FDCWD, (long)oldpath,
  85. AT_FDCWD, (long)newpath, 0);
  86. }
  87. inline static long sys_renameat2(int oldat, const char* oldpath,
  88. int newat, const char* newpath, int flags)
  89. {
  90. return syscall5(NR_renameat2, oldat, (long)oldpath,
  91. newat, (long)newpath, flags);
  92. }
  93. inline static long sys_linkat(int oldat, const char* oldpath,
  94. int newat, const char* newpath, int flags)
  95. {
  96. return syscall5(NR_linkat, oldat, (long)oldpath,
  97. newat, (long)newpath, flags);
  98. }