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 #ifdef HAVE_STRUCT_STATFS_F_FILES 33 # define HAVE_STRUCT_STATFS 34 #endif 35 36 #ifdef HAVE_STRUCT_STATFS 37 static void 38 copy_statfs_to_statvfs(struct statvfs *to, struct statfs *from) 39 { 40 to->f_bsize = from->f_bsize; 41 to->f_frsize = from->f_bsize; /* no exact equivalent */ 42 to->f_blocks = from->f_blocks; 43 to->f_bfree = from->f_bfree; 44 to->f_bavail = from->f_bavail; 45 to->f_files = from->f_files; 46 to->f_ffree = from->f_ffree; 47 to->f_favail = from->f_ffree; /* no exact equivalent */ 48 to->f_fsid = 0; /* XXX fix me */ 49 #ifdef HAVE_STRUCT_STATFS_F_FLAGS 50 to->f_flag = from->f_flags; 51 #else 52 to->f_flag = 0; 53 #endif 54 to->f_namemax = MNAMELEN; 55 } 56 #endif 57 58 # ifndef HAVE_STATVFS 59 int statvfs(const char *path, struct statvfs *buf) 60 { 61 # if defined(HAVE_STATFS) && defined(HAVE_STRUCT_STATFS) 62 struct statfs fs; 63 64 memset(&fs, 0, sizeof(fs)); 65 if (statfs(path, &fs) == -1) 66 return -1; 67 copy_statfs_to_statvfs(buf, &fs); 68 return 0; 69 # else 70 errno = ENOSYS; 71 return -1; 72 # endif 73 } 74 # endif 75 76 # ifndef HAVE_FSTATVFS 77 int fstatvfs(int fd, struct statvfs *buf) 78 { 79 # if defined(HAVE_FSTATFS) && defined(HAVE_STRUCT_STATFS) 80 struct statfs fs; 81 82 memset(&fs, 0, sizeof(fs)); 83 if (fstatfs(fd, &fs) == -1) 84 return -1; 85 copy_statfs_to_statvfs(buf, &fs); 86 return 0; 87 # else 88 errno = ENOSYS; 89 return -1; 90 # endif 91 } 92 # endif 93 94 #endif 95