projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 0d83b42e RM |
1 | /* Common parts of Linux implementation of pathconf and fpathconf. |
| 2 | Copyright (C) 1991,95,96,98,99,2000,2001,2002 Free Software Foundation, Inc. | |
| 3 | This file is part of the GNU C Library. | |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Lesser General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Lesser General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public | |
| 16 | License along with the GNU C Library; if not, write to the Free | |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 18 | 02111-1307 USA. */ | |
| 19 | ||
| 20 | #include <unistd.h> | |
| 21 | #include <errno.h> | |
| 22 | #include <sys/statfs.h> | |
| 23 | #include "linux_fsinfo.h" | |
| 24 | ||
| 25 | /* Used like: return statfs_link_max (__statfs (name, &buf), &buf); */ | |
| 26 | ||
| 69c708ed | 27 | static inline long int |
| 0d83b42e RM |
28 | statfs_link_max (int result, const struct statfs *fsbuf) |
| 29 | { | |
| 30 | if (result < 0) | |
| 31 | { | |
| 32 | if (errno == ENOSYS) | |
| 33 | /* Not possible, return the default value. */ | |
| 34 | return LINUX_LINK_MAX; | |
| 35 | ||
| 36 | /* Some error occured. */ | |
| 37 | return -1; | |
| 38 | } | |
| 39 | ||
| 40 | switch (fsbuf->f_type) | |
| 41 | { | |
| 42 | case EXT2_SUPER_MAGIC: | |
| 43 | return EXT2_LINK_MAX; | |
| 44 | ||
| 45 | case MINIX_SUPER_MAGIC: | |
| 46 | case MINIX_SUPER_MAGIC2: | |
| 47 | return MINIX_LINK_MAX; | |
| 48 | ||
| 49 | case MINIX2_SUPER_MAGIC: | |
| 50 | case MINIX2_SUPER_MAGIC2: | |
| 51 | return MINIX2_LINK_MAX; | |
| 52 | ||
| 53 | case XENIX_SUPER_MAGIC: | |
| 54 | return XENIX_LINK_MAX; | |
| 55 | ||
| 56 | case SYSV4_SUPER_MAGIC: | |
| 57 | case SYSV2_SUPER_MAGIC: | |
| 58 | return SYSV_LINK_MAX; | |
| 59 | ||
| 60 | case COH_SUPER_MAGIC: | |
| 61 | return COH_LINK_MAX; | |
| 62 | ||
| 63 | case UFS_MAGIC: | |
| 64 | case UFS_CIGAM: | |
| 65 | return UFS_LINK_MAX; | |
| 66 | ||
| 67 | case REISERFS_SUPER_MAGIC: | |
| 68 | return REISERFS_LINK_MAX; | |
| 69 | ||
| 70 | case XFS_SUPER_MAGIC: | |
| 71 | return XFS_LINK_MAX; | |
| 72 | ||
| 73 | default: | |
| 74 | return LINUX_LINK_MAX; | |
| 75 | } | |
| 76 | } | |
| 69c708ed RM |
77 | |
| 78 | /* Used like: return statfs_filesize_max (__statfs (name, &buf), &buf); */ | |
| 79 | ||
| 80 | static inline long int | |
| 81 | statfs_filesize_max (int result, const struct statfs *fsbuf) | |
| 82 | { | |
| 83 | if (result < 0) | |
| 84 | { | |
| 85 | if (errno == ENOSYS) | |
| 86 | /* Not possible, return the default value. */ | |
| 87 | return 32; | |
| 88 | ||
| 89 | /* Some error occured. */ | |
| 90 | return -1; | |
| 91 | } | |
| 92 | ||
| 93 | switch (fsbuf->f_type) | |
| 94 | { | |
| 95 | case EXT2_SUPER_MAGIC: | |
| 96 | case UFS_MAGIC: | |
| 97 | case UFS_CIGAM: | |
| 98 | case REISERFS_SUPER_MAGIC: | |
| 99 | case XFS_SUPER_MAGIC: | |
| 100 | case SMB_SUPER_MAGIC: | |
| 101 | case NTFS_SUPER_MAGIC: | |
| 102 | case UDF_SUPER_MAGIC: | |
| 103 | case JFS_SUPER_MAGIC: | |
| 104 | return 64; | |
| 105 | ||
| 106 | case MSDOS_SUPER_MAGIC: | |
| 107 | case JFFS_SUPER_MAGIC: | |
| 108 | case JFFS2_SUPER_MAGIC: | |
| 109 | case NCP_SUPER_MAGIC: | |
| 110 | case ROMFS_SUPER_MAGIC: | |
| 111 | return 32; | |
| 112 | ||
| 113 | default: | |
| 114 | return 32; | |
| 115 | } | |
| 116 | } |