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 #ifdef HAVE_SYS_MOUNT_H 22 # include <sys/mount.h> 23 #endif 24 25 #include <errno.h> 26 27 #ifndef MNAMELEN 28 # define MNAMELEN 32 29 #endif 30 31 #ifdef HAVE_STRUCT_STATFS_F_FILES 32 # define HAVE_STRUCT_STATFS 33 #endif 34 35 #ifdef HAVE_STRUCT_STATFS 36 static void 37 copy_statfs_to_statvfs(struct statvfs *to, struct statfs *from) 38 { 39 to->f_bsize = from->f_bsize; 40 to->f_frsize = from->f_bsize; /* no exact equivalent */ 41 to->f_blocks = from->f_blocks; 42 to->f_bfree = from->f_bfree; 43 to->f_bavail = from->f_bavail; 44 to->f_files = from->f_files; 45 to->f_ffree = from->f_ffree; 46 to->f_favail = from->f_ffree; /* no exact equivalent */ 47 to->f_fsid = 0; /* XXX fix me */ 48 #ifdef HAVE_STRUCT_STATFS_F_FLAGS 49 to->f_flag = from->f_flags; 50 #else 51 to->f_flag = 0; 52 #endif 53 to->f_namemax = MNAMELEN; 54 } 55 #endif 56 57 # ifndef HAVE_STATVFS 58 int statvfs(const char *path, struct statvfs *buf) 59 { 60 # if defined(HAVE_STATFS) && defined(HAVE_STRUCT_STATFS) 61 struct statfs fs; 62 63 memset(&fs, 0, sizeof(fs)); 64 if (statfs(path, &fs) == -1) 65 return -1; 66 copy_statfs_to_statvfs(buf, &fs); 67 return 0; 68 # else 69 errno = ENOSYS; 70 return -1; 71 # endif 72 } 73 # endif 74 75 # ifndef HAVE_FSTATVFS 76 int fstatvfs(int fd, struct statvfs *buf) 77 { 78 # if defined(HAVE_FSTATFS) && defined(HAVE_STRUCT_STATFS) 79 struct statfs fs; 80 81 memset(&fs, 0, sizeof(fs)); 82 if (fstatfs(fd, &fs) == -1) 83 return -1; 84 copy_statfs_to_statvfs(buf, &fs); 85 return 0; 86 # else 87 errno = ENOSYS; 88 return -1; 89 # endif 90 } 91 # endif 92 93 #endif 94