1 /* $Id: bsd-statvfs.c,v 1.2 2014/01/17 07:10:59 dtucker Exp $ */ 2 3 /* 4 * Copyright (c) 2008,2014 Darren Tucker <dtucker@zip.com.au> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include "includes.h" 20 21 #if !defined(HAVE_STATVFS) || !defined(HAVE_FSTATVFS) 22 23 #include <sys/param.h> 24 #ifdef HAVE_SYS_MOUNT_H 25 # include <sys/mount.h> 26 #endif 27 28 #include <errno.h> 29 30 static void 31 copy_statfs_to_statvfs(struct statvfs *to, struct statfs *from) 32 { 33 to->f_bsize = from->f_bsize; 34 to->f_frsize = from->f_bsize; /* no exact equivalent */ 35 to->f_blocks = from->f_blocks; 36 to->f_bfree = from->f_bfree; 37 to->f_bavail = from->f_bavail; 38 to->f_files = from->f_files; 39 to->f_ffree = from->f_ffree; 40 to->f_favail = from->f_ffree; /* no exact equivalent */ 41 to->f_fsid = 0; /* XXX fix me */ 42 to->f_flag = from->f_flags; 43 to->f_namemax = MNAMELEN; 44 } 45 46 # ifndef HAVE_STATVFS 47 int statvfs(const char *path, struct statvfs *buf) 48 { 49 # ifdef HAVE_STATFS 50 struct statfs fs; 51 52 memset(&fs, 0, sizeof(fs)); 53 if (statfs(path, &fs) == -1) 54 return -1; 55 copy_statfs_to_statvfs(buf, &fs); 56 return 0; 57 # else 58 errno = ENOSYS; 59 return -1; 60 # endif 61 } 62 # endif 63 64 # ifndef HAVE_FSTATVFS 65 int fstatvfs(int fd, struct statvfs *buf) 66 { 67 # ifdef HAVE_FSTATFS 68 struct statfs fs; 69 70 memset(&fs, 0, sizeof(fs)); 71 if (fstatfs(fd, &fs) == -1) 72 return -1; 73 copy_statfs_to_statvfs(buf, &fs); 74 return 0; 75 # else 76 errno = ENOSYS; 77 return -1; 78 # endif 79 } 80 # endif 81 82 #endif 83