diff options
Diffstat (limited to 'sysdeps/posix/pathconf.c')
| -rw-r--r-- | sysdeps/posix/pathconf.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/sysdeps/posix/pathconf.c b/sysdeps/posix/pathconf.c deleted file mode 100644 index 46cc35629e..0000000000 --- a/sysdeps/posix/pathconf.c +++ /dev/null @@ -1,227 +0,0 @@ -/* Copyright (C) 1991-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <stddef.h> -#include <unistd.h> -#include <limits.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <sys/statfs.h> -#include <sys/statvfs.h> - - -/* Get file-specific information about PATH. */ -long int -__pathconf (const char *path, int name) -{ - if (path[0] == '\0') - { - __set_errno (ENOENT); - return -1; - } - - switch (name) - { - default: - __set_errno (EINVAL); - return -1; - - case _PC_LINK_MAX: -#ifdef LINK_MAX - return LINK_MAX; -#else - return -1; -#endif - - case _PC_MAX_CANON: -#ifdef MAX_CANON - return MAX_CANON; -#else - return -1; -#endif - - case _PC_MAX_INPUT: -#ifdef MAX_INPUT - return MAX_INPUT; -#else - return -1; -#endif - - case _PC_NAME_MAX: -#ifdef NAME_MAX - { - struct statvfs64 sv; - int save_errno = errno; - - if (__statvfs64 (path, &sv) < 0) - { - if (errno == ENOSYS) - { - errno = save_errno; - return NAME_MAX; - } - return -1; - } - else - { - return sv.f_namemax; - } - } -#else - return -1; -#endif - - case _PC_PATH_MAX: -#ifdef PATH_MAX - return PATH_MAX; -#else - return -1; -#endif - - case _PC_PIPE_BUF: -#ifdef PIPE_BUF - return PIPE_BUF; -#else - return -1; -#endif - - case _PC_CHOWN_RESTRICTED: -#ifdef _POSIX_CHOWN_RESTRICTED - return _POSIX_CHOWN_RESTRICTED; -#else - return -1; -#endif - - case _PC_NO_TRUNC: -#ifdef _POSIX_NO_TRUNC - return _POSIX_NO_TRUNC; -#else - return -1; -#endif - - case _PC_VDISABLE: -#ifdef _POSIX_VDISABLE - return _POSIX_VDISABLE; -#else - return -1; -#endif - - case _PC_SYNC_IO: -#ifdef _POSIX_SYNC_IO - return _POSIX_SYNC_IO; -#else - return -1; -#endif - - case _PC_ASYNC_IO: -#ifdef _POSIX_ASYNC_IO - { - /* AIO is only allowed on regular files and block devices. */ - struct stat64 st; - - if (__xstat64 (_STAT_VER, path, &st) < 0 - || (! S_ISREG (st.st_mode) && ! S_ISBLK (st.st_mode))) - return -1; - else - return 1; - } -#else - return -1; -#endif - - case _PC_PRIO_IO: -#ifdef _POSIX_PRIO_IO - return _POSIX_PRIO_IO; -#else - return -1; -#endif - - case _PC_SOCK_MAXBUF: -#ifdef SOCK_MAXBUF - return SOCK_MAXBUF; -#else - return -1; -#endif - - case _PC_FILESIZEBITS: -#ifdef FILESIZEBITS - return FILESIZEBITS; -#else - /* We let platforms with larger file sizes overwrite this value. */ - return 32; -#endif - - case _PC_REC_INCR_XFER_SIZE: - /* XXX It is not entirely clear what the limit is supposed to do. - What is incremented? */ - return -1; - - case _PC_REC_MAX_XFER_SIZE: - /* XXX It is not entirely clear what the limit is supposed to do. - In general there is no top limit of the number of bytes which - case be transported at once. */ - return -1; - - case _PC_REC_MIN_XFER_SIZE: - { - /* XXX It is not entirely clear what the limit is supposed to do. - I assume this is the block size of the filesystem. */ - struct statvfs64 sv; - - if (__statvfs64 (path, &sv) < 0) - return -1; - return sv.f_bsize; - } - - case _PC_REC_XFER_ALIGN: - { - /* XXX It is not entirely clear what the limit is supposed to do. - I assume that the number should reflect the minimal block - alignment. */ - struct statvfs64 sv; - - if (__statvfs64 (path, &sv) < 0) - return -1; - return sv.f_frsize; - } - - case _PC_ALLOC_SIZE_MIN: - { - /* XXX It is not entirely clear what the limit is supposed to do. - I assume that the number should reflect the minimal block - alignment. */ - struct statvfs64 sv; - - if (__statvfs64 (path, &sv) < 0) - return -1; - return sv.f_frsize; - } - - case _PC_SYMLINK_MAX: - /* In general there are no limits. If a system has one it should - overwrite this case. */ - return -1; - - case _PC_2_SYMLINKS: - /* Unix systems generally have symlinks. */ - return 1; - } -} - -#undef __pathconf -weak_alias (__pathconf, pathconf) |