1 /* 2 * Copyright (c) 2008,2014 Darren Tucker <dtucker@zip.com.au> 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 14 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include "includes.h" 18 19 #if !defined(HAVE_STATVFS) || !defined(HAVE_FSTATVFS) 20 21 #include <sys/param.h> 22 #ifdef HAVE_SYS_MOUNT_H 23 # include <sys/mount.h> 24 #endif 25 26 #include <errno.h> 27 28 #ifndef MNAMELEN 29 # define MNAMELEN 32 30 #endif 31 32 static void 33 copy_statfs_to_statvfs(struct statvfs *to, struct statfs *from) 34 { 35 to->f_bsize = from->f_bsize; 36 to->f_frsize = from->f_bsize; /* no exact equivalent */ 37 to->f_blocks = from->f_blocks; 38 to->f_bfree = from->f_bfree; 39 to->f_bavail = from->f_bavail; 40 to->f_files = from->f_files; 41 to->f_ffree = from->f_ffree; 42 to->f_favail = from->f_ffree; /* no exact equivalent */ 43 to->f_fsid = 0; /* XXX fix me */ 44 #ifdef HAVE_STRUCT_STATFS_F_FLAGS 45 to->f_flag = from->f_flags; 46 #else 47 to->f_flag = 0; 48 #endif 49 to->f_namemax = MNAMELEN; 50 } 51 52 # ifndef HAVE_STATVFS 53 int statvfs(const char *path, struct statvfs *buf) 54 { 55 # ifdef HAVE_STATFS 56 struct statfs fs; 57 58 memset(&fs, 0, sizeof(fs)); 59 if (statfs(path, &fs) == -1) 60 return -1; 61 copy_statfs_to_statvfs(buf, &fs); 62 return 0; 63 # else 64 errno = ENOSYS; 65 return -1; 66 # endif 67 } 68 # endif 69 70 # ifndef HAVE_FSTATVFS 71 int fstatvfs(int fd, struct statvfs *buf) 72 { 73 # ifdef HAVE_FSTATFS 74 struct statfs fs; 75 76 memset(&fs, 0, sizeof(fs)); 77 if (fstatfs(fd, &fs) == -1) 78 return -1; 79 copy_statfs_to_statvfs(buf, &fs); 80 return 0; 81 # else 82 errno = ENOSYS; 83 return -1; 84 # endif 85 } 86 # endif 87 88 #endif 89