1 /* 2 * Copyright 2002-2008, Axel Dörfler, axeld@pinc-software.de. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 6 7 #include <NodeMonitor.h> 8 9 #include <unistd.h> 10 #include <syscalls.h> 11 #include <errno.h> 12 13 14 #define RETURN_AND_SET_ERRNO(err) \ 15 if (err < 0) { \ 16 errno = err; \ 17 return -1; \ 18 } \ 19 return err; 20 21 22 int 23 chown(const char *path, uid_t owner, gid_t group) 24 { 25 struct stat stat; 26 status_t status; 27 28 stat.st_uid = owner; 29 stat.st_gid = group; 30 status = _kern_write_stat(-1, path, true, &stat, sizeof(struct stat), 31 B_STAT_UID | B_STAT_GID); 32 33 RETURN_AND_SET_ERRNO(status); 34 } 35 36 37 int 38 lchown(const char *path, uid_t owner, gid_t group) 39 { 40 struct stat stat; 41 status_t status; 42 43 stat.st_uid = owner; 44 stat.st_gid = group; 45 status = _kern_write_stat(-1, path, false, &stat, sizeof(struct stat), 46 B_STAT_UID | B_STAT_GID); 47 48 RETURN_AND_SET_ERRNO(status); 49 } 50 51 52 int 53 fchown(int fd, uid_t owner, gid_t group) 54 { 55 struct stat stat; 56 status_t status; 57 58 stat.st_uid = owner; 59 stat.st_gid = group; 60 status = _kern_write_stat(fd, NULL, false, &stat, sizeof(struct stat), 61 B_STAT_UID | B_STAT_GID); 62 63 RETURN_AND_SET_ERRNO(status); 64 } 65 66