/* Copyright (C) 1991, 1995, 1996 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 Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <errno.h> #include <stddef.h> #include <unistd.h> #include <limits.h> #include <sys/statfs.h> /* Get file-specific information about descriptor FD. */ long int __fpathconf (fd, name) int fd; int name; { if (fd < 0) { __set_errno (EBADF); return -1; } switch (name) { default: __set_errno (EINVAL); return -1; case _PC_LINK_MAX: #ifdef LINK_MAX return LINK_MAX; #else __set_errno (ENOSYS); return -1; #endif case _PC_MAX_CANON: #ifdef MAX_CANON return MAX_CANON; #else __set_errno (ENOSYS); return -1; #endif case _PC_MAX_INPUT: #ifdef MAX_INPUT return MAX_INPUT; #else __set_errno (ENOSYS); return -1; #endif case _PC_NAME_MAX: #ifdef NAME_MAX { struct statfs buf; if (__fstatfs (fd, &buf) < 0) return errno == ENOSYS ? NAME_MAX : -1; else return buf.f_namelen; } #else __set_errno (ENOSYS); return -1; #endif case _PC_PATH_MAX: #ifdef PATH_MAX return PATH_MAX; #else __set_errno (ENOSYS); return -1; #endif case _PC_PIPE_BUF: #ifdef PIPE_BUF return PIPE_BUF; #else __set_errno (ENOSYS); 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 return _POSIX_ASYNC_IO; #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 __set_errno (ENOSYS); return -1; #endif } __set_errno (ENOSYS); return -1; } weak_alias (__fpathconf, fpathconf)