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2002-07-19 Jeff Johnston <jjohnstn@redhat.com> 

* libc/sys/linux/Makefile.am: Add pathconf.c and fpathconf.c.
        * libc/sys/linux/Makefile.in: Regenerated.
        * libc/sys/linux/inode.c: Add chmod, fchmod, and chown syscalls.
        * libc/sys/linux/io.c: Add ftruncate syscall.
        * libc/sys/linux/fpathconf.c: New file.
        * libc/sys/linux/pathconf.c: Ditto.
        * libc/sys/linux/linux_fsinfo.h: Ditto.
        * libc/sys/linux/sys/unistd.h: Ditto.
This commit is contained in:
Jeff Johnston 2002-07-20 01:03:08 +00:00
parent f658e220d9
commit 504628e782
9 changed files with 937 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
newlib/ChangeLog
View File

@ -1,3 +1,14 @@
2002-07-19 Jeff Johnston <jjohnstn@redhat.com>
* libc/sys/linux/Makefile.am: Add pathconf.c and fpathconf.c.
* libc/sys/linux/Makefile.in: Regenerated.
* libc/sys/linux/inode.c: Add chmod, fchmod, and chown syscalls.
* libc/sys/linux/io.c: Add ftruncate syscall.
* libc/sys/linux/fpathconf.c: New file.
* libc/sys/linux/pathconf.c: Ditto.
* libc/sys/linux/linux_fsinfo.h: Ditto.
* libc/sys/linux/sys/unistd.h: Ditto.
2002-07-19 Jeff Johnston <jjohnstn@redhat.com>
* libc/stdio64/Makefile.am: Remove missing files.

2
newlib/libc/sys/linux/Makefile.am
View File

@ -20,6 +20,7 @@ LIB_SOURCES = \
clock_gettime.c \
clock_settime.c \
flockfile.c \
fpathconf.c \
free.c \
freer.c \
ftok.c \
@ -57,6 +58,7 @@ LIB_SOURCES = \
mtrim.c \
mtrimr.c \
ntp_gettime.c \
pathconf.c \
pread.c \
pread64.c \
process.c \

60
newlib/libc/sys/linux/Makefile.in
View File

@ -117,6 +117,7 @@ LIB_SOURCES = \
clock_gettime.c \
clock_settime.c \
flockfile.c \
fpathconf.c \
free.c \
freer.c \
ftok.c \
@ -154,6 +155,7 @@ LIB_SOURCES = \
mtrim.c \
mtrimr.c \
ntp_gettime.c \
pathconf.c \
pread.c \
pread64.c \
process.c \
@ -240,14 +242,14 @@ LIBS = @LIBS@
@USE_LIBTOOL_FALSE@calloc.$(OBJEXT) callocr.$(OBJEXT) cfreer.$(OBJEXT) \
@USE_LIBTOOL_FALSE@cfspeed.$(OBJEXT) clock_getres.$(OBJEXT) \
@USE_LIBTOOL_FALSE@clock_gettime.$(OBJEXT) clock_settime.$(OBJEXT) \
@USE_LIBTOOL_FALSE@flockfile.$(OBJEXT) free.$(OBJEXT) freer.$(OBJEXT) \
@USE_LIBTOOL_FALSE@ftok.$(OBJEXT) funlockfile.$(OBJEXT) \
@USE_LIBTOOL_FALSE@getdate.$(OBJEXT) getdate_err.$(OBJEXT) \
@USE_LIBTOOL_FALSE@gethostname.$(OBJEXT) getoptlong.$(OBJEXT) \
@USE_LIBTOOL_FALSE@getreent.$(OBJEXT) getrlimit64.$(OBJEXT) \
@USE_LIBTOOL_FALSE@ids.$(OBJEXT) inode.$(OBJEXT) io.$(OBJEXT) \
@USE_LIBTOOL_FALSE@io64.$(OBJEXT) ipc.$(OBJEXT) linux.$(OBJEXT) \
@USE_LIBTOOL_FALSE@malign.$(OBJEXT) malignr.$(OBJEXT) \
@USE_LIBTOOL_FALSE@flockfile.$(OBJEXT) fpathconf.$(OBJEXT) \
@USE_LIBTOOL_FALSE@free.$(OBJEXT) freer.$(OBJEXT) ftok.$(OBJEXT) \
@USE_LIBTOOL_FALSE@funlockfile.$(OBJEXT) getdate.$(OBJEXT) \
@USE_LIBTOOL_FALSE@getdate_err.$(OBJEXT) gethostname.$(OBJEXT) \
@USE_LIBTOOL_FALSE@getoptlong.$(OBJEXT) getreent.$(OBJEXT) \
@USE_LIBTOOL_FALSE@getrlimit64.$(OBJEXT) ids.$(OBJEXT) inode.$(OBJEXT) \
@USE_LIBTOOL_FALSE@io.$(OBJEXT) io64.$(OBJEXT) ipc.$(OBJEXT) \
@USE_LIBTOOL_FALSE@linux.$(OBJEXT) malign.$(OBJEXT) malignr.$(OBJEXT) \
@USE_LIBTOOL_FALSE@mallinfor.$(OBJEXT) mallocr.$(OBJEXT) \
@USE_LIBTOOL_FALSE@malloptr.$(OBJEXT) mallstatsr.$(OBJEXT) \
@USE_LIBTOOL_FALSE@mmap.$(OBJEXT) mq_close.$(OBJEXT) \
@ -256,8 +258,8 @@ LIBS = @LIBS@
@USE_LIBTOOL_FALSE@mq_send.$(OBJEXT) mq_setattr.$(OBJEXT) \
@USE_LIBTOOL_FALSE@mq_unlink.$(OBJEXT) msize.$(OBJEXT) msizer.$(OBJEXT) \
@USE_LIBTOOL_FALSE@mstats.$(OBJEXT) mtrim.$(OBJEXT) mtrimr.$(OBJEXT) \
@USE_LIBTOOL_FALSE@ntp_gettime.$(OBJEXT) pread.$(OBJEXT) \
@USE_LIBTOOL_FALSE@pread64.$(OBJEXT) process.$(OBJEXT) \
@USE_LIBTOOL_FALSE@ntp_gettime.$(OBJEXT) pathconf.$(OBJEXT) \
@USE_LIBTOOL_FALSE@pread.$(OBJEXT) pread64.$(OBJEXT) process.$(OBJEXT) \
@USE_LIBTOOL_FALSE@psignal.$(OBJEXT) pvallocr.$(OBJEXT) \
@USE_LIBTOOL_FALSE@pwrite.$(OBJEXT) pwrite64.$(OBJEXT) raise.$(OBJEXT) \
@USE_LIBTOOL_FALSE@realloc.$(OBJEXT) reallocr.$(OBJEXT) \
@ -280,25 +282,25 @@ LTLIBRARIES = $(noinst_LTLIBRARIES)
@USE_LIBTOOL_TRUE@liblinux_la_OBJECTS = aio.lo brk.lo calloc.lo \
@USE_LIBTOOL_TRUE@callocr.lo cfreer.lo cfspeed.lo clock_getres.lo \
@USE_LIBTOOL_TRUE@clock_gettime.lo clock_settime.lo flockfile.lo \
@USE_LIBTOOL_TRUE@free.lo freer.lo ftok.lo funlockfile.lo getdate.lo \
@USE_LIBTOOL_TRUE@getdate_err.lo gethostname.lo getoptlong.lo \
@USE_LIBTOOL_TRUE@getreent.lo getrlimit64.lo ids.lo inode.lo io.lo \
@USE_LIBTOOL_TRUE@io64.lo ipc.lo linux.lo malign.lo malignr.lo \
@USE_LIBTOOL_TRUE@mallinfor.lo mallocr.lo malloptr.lo mallstatsr.lo \
@USE_LIBTOOL_TRUE@mmap.lo mq_close.lo mq_getattr.lo mq_notify.lo \
@USE_LIBTOOL_TRUE@mq_open.lo mq_receive.lo mq_send.lo mq_setattr.lo \
@USE_LIBTOOL_TRUE@mq_unlink.lo msize.lo msizer.lo mstats.lo mtrim.lo \
@USE_LIBTOOL_TRUE@mtrimr.lo ntp_gettime.lo pread.lo pread64.lo \
@USE_LIBTOOL_TRUE@process.lo psignal.lo pvallocr.lo pwrite.lo \
@USE_LIBTOOL_TRUE@pwrite64.lo raise.lo realloc.lo reallocr.lo \
@USE_LIBTOOL_TRUE@realpath.lo rename.lo resource.lo sched.lo select.lo \
@USE_LIBTOOL_TRUE@seteuid.lo sethostname.lo setrlimit64.lo shm_open.lo \
@USE_LIBTOOL_TRUE@shm_unlink.lo sig.lo sigaction.lo sigqueue.lo \
@USE_LIBTOOL_TRUE@signal.lo siglongjmp.lo sigset.lo sigwait.lo \
@USE_LIBTOOL_TRUE@socket.lo sleep.lo stack.lo strsignal.lo sysconf.lo \
@USE_LIBTOOL_TRUE@sysctl.lo systat.lo system.lo tcdrain.lo tcsendbrk.lo \
@USE_LIBTOOL_TRUE@termios.lo time.lo usleep.lo utimes.lo vallocr.lo \
@USE_LIBTOOL_TRUE@wait.lo
@USE_LIBTOOL_TRUE@fpathconf.lo free.lo freer.lo ftok.lo funlockfile.lo \
@USE_LIBTOOL_TRUE@getdate.lo getdate_err.lo gethostname.lo \
@USE_LIBTOOL_TRUE@getoptlong.lo getreent.lo getrlimit64.lo ids.lo \
@USE_LIBTOOL_TRUE@inode.lo io.lo io64.lo ipc.lo linux.lo malign.lo \
@USE_LIBTOOL_TRUE@malignr.lo mallinfor.lo mallocr.lo malloptr.lo \
@USE_LIBTOOL_TRUE@mallstatsr.lo mmap.lo mq_close.lo mq_getattr.lo \
@USE_LIBTOOL_TRUE@mq_notify.lo mq_open.lo mq_receive.lo mq_send.lo \
@USE_LIBTOOL_TRUE@mq_setattr.lo mq_unlink.lo msize.lo msizer.lo \
@USE_LIBTOOL_TRUE@mstats.lo mtrim.lo mtrimr.lo ntp_gettime.lo \
@USE_LIBTOOL_TRUE@pathconf.lo pread.lo pread64.lo process.lo psignal.lo \
@USE_LIBTOOL_TRUE@pvallocr.lo pwrite.lo pwrite64.lo raise.lo realloc.lo \
@USE_LIBTOOL_TRUE@reallocr.lo realpath.lo rename.lo resource.lo \
@USE_LIBTOOL_TRUE@sched.lo select.lo seteuid.lo sethostname.lo \
@USE_LIBTOOL_TRUE@setrlimit64.lo shm_open.lo shm_unlink.lo sig.lo \
@USE_LIBTOOL_TRUE@sigaction.lo sigqueue.lo signal.lo siglongjmp.lo \
@USE_LIBTOOL_TRUE@sigset.lo sigwait.lo socket.lo sleep.lo stack.lo \
@USE_LIBTOOL_TRUE@strsignal.lo sysconf.lo sysctl.lo systat.lo system.lo \
@USE_LIBTOOL_TRUE@tcdrain.lo tcsendbrk.lo termios.lo time.lo usleep.lo \
@USE_LIBTOOL_TRUE@utimes.lo vallocr.lo wait.lo
CFLAGS = @CFLAGS@
COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
LTCOMPILE = $(LIBTOOL) --mode=compile $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)

305
newlib/libc/sys/linux/fpathconf.c Normal file
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@ -0,0 +1,305 @@
/* Linux specific extensions to fpathconf.
Copyright (C) 1991,95,96,98,99,2000,2001 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* Modified for newlib July 19, 2002 by Jeff Johnston */
#include <errno.h>
#include <stddef.h>
#include <unistd.h>
#include <limits.h>
#include <sys/stat.h>
#include <sys/statfs.h>
#include <sys/statvfs.h>
#include <machine/weakalias.h>
#include "linux_fsinfo.h"
#define __set_errno(x) errno=(x)
/* The Linux kernel header mentioned this as a kind of generic value. */
#define LINUX_LINK_MAX 127
static long int posix_fpathconf (int fd, int name);
/* Get file-specific information about descriptor FD. */
long int
__fpathconf (fd, name)
int fd;
int name;
{
if (name == _PC_LINK_MAX)
{
struct statfs fsbuf;
/* Determine the filesystem type. */
if (__fstatfs (fd, &fsbuf) < 0)
{
if (errno == ENOSYS)
/* not possible, return the default value. */
return LINUX_LINK_MAX;
/* Some error occured. */
return -1;
}
switch (fsbuf.f_type)
{
case EXT2_SUPER_MAGIC:
return EXT2_LINK_MAX;
case MINIX_SUPER_MAGIC:
case MINIX_SUPER_MAGIC2:
return MINIX_LINK_MAX;
case MINIX2_SUPER_MAGIC:
case MINIX2_SUPER_MAGIC2:
return MINIX2_LINK_MAX;
case XENIX_SUPER_MAGIC:
return XENIX_LINK_MAX;
case SYSV4_SUPER_MAGIC:
case SYSV2_SUPER_MAGIC:
return SYSV_LINK_MAX;
case COH_SUPER_MAGIC:
return COH_LINK_MAX;
case UFS_MAGIC:
case UFS_CIGAM:
return UFS_LINK_MAX;
case REISERFS_SUPER_MAGIC:
return REISERFS_LINK_MAX;
default:
return LINUX_LINK_MAX;
}
}
return posix_fpathconf (fd, name);
}
/* Get file-specific information about descriptor FD. */
static long int
posix_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
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 statfs buf;
int save_errno = errno;
if (__fstatfs (fd, &buf) < 0)
{
if (errno == ENOSYS)
{
__set_errno (save_errno);
return NAME_MAX;
}
else if (errno == ENODEV)
__set_errno (EINVAL);
return -1;
}
else
{
#ifdef _STATFS_F_NAMELEN
return buf.f_namelen;
#else
# ifdef _STATFS_F_NAME_MAX
return buf.f_name_max;
# else
return NAME_MAX;
# endif
#endif
}
}
#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 (__fxstat64 (_STAT_VER, fd, &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 (__fstatvfs64 (fd, &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 (__fstatvfs64 (fd, &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 (__fstatvfs64 (fd, &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;
}
}
weak_alias (__fpathconf, fpathconf)

2
newlib/libc/sys/linux/inode.c
View File

@ -23,6 +23,8 @@ _syscall1(int,unlink,const char *,pathname)
_syscall1(int,chdir,const char *,path)
_syscall3(int,mknod,const char *,pathname,mode_t,mode,dev_t,dev)
_syscall2(int,chmod,const char *,path,mode_t,mode)
_syscall2(int,fchmod,int,filedes,mode_t,mode)
_syscall3(int,chown,const char *,path,uid_t,owner,gid_t,group)
_syscall2(int,utime,const char *,filename,const struct utimbuf *,buf)
_syscall2(int,access,const char *,filename,int,mode)
_syscall2(int,mkdir,const char *,pathname,mode_t,mode)

2
newlib/libc/sys/linux/io.c
View File

@ -32,6 +32,8 @@ _syscall1(int,dup,int,fd)
_syscall2(int,dup2,int,oldfd,int,newfd)
_syscall3(int,fcntl,int,fd,int,cmd,long,arg)
_syscall1(int,fdatasync,int,fd)
_syscall2(int,ftruncate,int,fd,off_t,len)
_syscall2(int,truncate,const char *,path,off_t,len)
_syscall1(int,fsync,int,fd)
_syscall3(int,poll,struct pollfd *,fds,nfds_t,nfds,int,timeout)

114
newlib/libc/sys/linux/linux_fsinfo.h Normal file
View File

@ -0,0 +1,114 @@
/* Constants from kernel header for various FSes.
Copyright (C) 1998, 1999, 2000, 2001 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _LINUX_FSINFO_H
#define _LINUX_FSINFO_H 1
/* These definitions come from the kernel headers. But we cannot
include the headers here because of type clashes. If new
filesystem types will become available we have to add the
appropriate definitions here.*/
/* Constants that identify the `adfs' filesystem. */
#define ADFS_SUPER_MAGIC 0xadf5
/* Constants that identify the `affs' filesystem. */
#define AFFS_SUPER_MAGIC 0xadff
/* Constants that identify the `bfs' filesystem. */
#define BFS_MAGIC 0x1BADFACE
/* Constants that identify the `coda' filesystem. */
#define CODA_SUPER_MAGIC 0x73757245
/* Constants that identify the `coherent' filesystem. */
#define COH_SUPER_MAGIC 0x012ff7b7
/* Constant that identifies the `devfs' filesystem. */
#define DEVFS_SUPER_MAGIC 0x1373
/* Constant that identifies the `devpts' filesystem. */
#define DEVPTS_SUPER_MAGIC 0x1cd1
/* Constant that identifies the `efs' filesystem. */
#define EFS_SUPER_MAGIC 0x414A53
/* Constant that identifies the `ext2' and `ext3' filesystems. */
#define EXT2_SUPER_MAGIC 0xef53
/* Constant that identifies the `hpfs' filesystem. */
#define HPFS_SUPER_MAGIC 0xf995e849
/* Constant that identifies the `iso9660' filesystem. */
#define ISOFS_SUPER_MAGIC 0x9660
/* Constants that identify the `minix2' filesystem. */
#define MINIX2_SUPER_MAGIC 0x2468
#define MINIX2_SUPER_MAGIC2 0x2478
/* Constants that identify the `minix' filesystem. */
#define MINIX_SUPER_MAGIC 0x137f
#define MINIX_SUPER_MAGIC2 0x138F
/* Constants that identify the `msdos' filesystem. */
#define MSDOS_SUPER_MAGIC 0x4d44
/* Constants that identify the `ncp' filesystem. */
#define NCP_SUPER_MAGIC 0x564c
/* Constants that identify the `nfs' filesystem. */
#define NFS_SUPER_MAGIC 0x6969
/* Constants that identify the `proc' filesystem. */
#define PROC_SUPER_MAGIC 0x9fa0
/* Constants that identify the `qnx4' filesystem. */
#define QNX4_SUPER_MAGIC 0x002f
/* Constants that identify the `reiser' filesystem. */
#define REISERFS_SUPER_MAGIC 0x52654973
/* Constants that identify the `smb' filesystem. */
#define SMB_SUPER_MAGIC 0x517b
/* Constants that identify the `sysV' filesystem. */
#define SYSV2_SUPER_MAGIC 0x012ff7b6
#define SYSV4_SUPER_MAGIC 0x012ff7b5
/* Constants that identify the `ufs' filesystem. */
#define UFS_MAGIC 0x00011954
#define UFS_CIGAM 0x54190100 /* byteswapped MAGIC */
/* Constants that identify the `xenix' filesystem. */
#define XENIX_SUPER_MAGIC 0x012ff7b4
/* Constant that identifies the `shm' filesystem. */
#define SHMFS_SUPER_MAGIC 0x01021994
/* Maximum link counts. */
#define COH_LINK_MAX 10000
#define EXT2_LINK_MAX 32000
#define MINIX2_LINK_MAX 65530
#define MINIX_LINK_MAX 250
#define REISERFS_LINK_MAX 64535
#define SYSV_LINK_MAX 126 /* 127? 251? */
#define UFS_LINK_MAX EXT2_LINK_MAX
#define XENIX_LINK_MAX 126 /* ?? */
#endif /* linux_fsinfo.h */

302
newlib/libc/sys/linux/pathconf.c Normal file
View File

@ -0,0 +1,302 @@
/* Linux specific extensions to pathconf.
Copyright (C) 1991,95,96,98,99,2000,2001 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* Modified for newlib July 19, 2002 - Jeff Johnston */
#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>
#include <machine/weakalias.h>
#include "linux_fsinfo.h"
#define __set_errno(x) errno=(x)
/* The Linux kernel header mentioned this as a kind of generic value. */
#define LINUX_LINK_MAX 127
static long int posix_pathconf (const char *path, int name);
/* Get file-specific information about descriptor FD. */
long int
__pathconf (path, name)
const char *path;
int name;
{
if (name == _PC_LINK_MAX)
{
struct statfs fsbuf;
/* Determine the filesystem type. */
if (__statfs (path, &fsbuf) < 0)
{
if (errno == ENOSYS)
/* not possible, return the default value. */
return LINUX_LINK_MAX;
/* Some error occured. */
return -1;
}
switch (fsbuf.f_type)
{
case EXT2_SUPER_MAGIC:
return EXT2_LINK_MAX;
case MINIX_SUPER_MAGIC:
case MINIX_SUPER_MAGIC2:
return MINIX_LINK_MAX;
case MINIX2_SUPER_MAGIC:
case MINIX2_SUPER_MAGIC2:
return MINIX2_LINK_MAX;
case XENIX_SUPER_MAGIC:
return XENIX_LINK_MAX;
case SYSV4_SUPER_MAGIC:
case SYSV2_SUPER_MAGIC:
return SYSV_LINK_MAX;
case COH_SUPER_MAGIC:
return COH_LINK_MAX;
case UFS_MAGIC:
case UFS_CIGAM:
return UFS_LINK_MAX;
case REISERFS_SUPER_MAGIC:
return REISERFS_LINK_MAX;
default:
return LINUX_LINK_MAX;
}
}
return posix_pathconf (path, name);
}
/* Get file-specific information about PATH. */
static long int
posix_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 statfs buf;
int save_errno = errno;
if (__statfs (path, &buf) < 0)
{
if (errno == ENOSYS)
{
errno = save_errno;
return NAME_MAX;
}
return -1;
}
else
{
#ifdef _STATFS_F_NAMELEN
return buf.f_namelen;
#else
# ifdef _STATFS_F_NAME_MAX
return buf.f_name_max;
# else
return NAME_MAX;
# endif
#endif
}
}
#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;
}
}
weak_alias (__pathconf, pathconf)

168
newlib/libc/sys/linux/sys/unistd.h Normal file
View File

@ -0,0 +1,168 @@
#ifndef _UNISTD_H
#define _UNISTD_H
#ifdef __cplusplus
extern "C" {
#endif
#include <_ansi.h>
#include <sys/types.h>
#include <sys/_types.h>
#define __need_size_t
#define __need_ptrdiff_t
#include <stddef.h>
extern char **environ;
void _EXFUN(_exit, (int __status ) _ATTRIBUTE ((noreturn)));
int _EXFUN(access,(const char *__path, int __amode ));
unsigned _EXFUN(alarm, (unsigned __secs ));
int _EXFUN(chdir, (const char *__path ));
int _EXFUN(chmod, (const char *__path, mode_t __mode ));
int _EXFUN(chown, (const char *__path, uid_t __owner, gid_t __group ));
#if defined(__CYGWIN__) || defined(__rtems__)
int _EXFUN(chroot, (const char *__path ));
#endif
int _EXFUN(close, (int __fildes ));
char _EXFUN(*ctermid, (char *__s ));
char _EXFUN(*cuserid, (char *__s ));
int _EXFUN(dup, (int __fildes ));
int _EXFUN(dup2, (int __fildes, int __fildes2 ));
#if defined(__CYGWIN__)
void _EXFUN(endusershell, (void));
#endif
int _EXFUN(execl, (const char *__path, const char *, ... ));
int _EXFUN(execle, (const char *__path, const char *, ... ));
int _EXFUN(execlp, (const char *__file, const char *, ... ));
int _EXFUN(execv, (const char *__path, char * const __argv[] ));
int _EXFUN(execve, (const char *__path, char * const __argv[], char * const __envp[] ));
int _EXFUN(execvp, (const char *__file, char * const __argv[] ));
#if defined(__CYGWIN__) || defined(__rtems__)
int _EXFUN(fchdir, (int __fildes));
#endif
int _EXFUN(fchmod, (int __fildes, mode_t __mode ));
int _EXFUN(fchown, (int __fildes, uid_t __owner, gid_t __group ));
pid_t _EXFUN(fork, (void ));
long _EXFUN(fpathconf, (int __fd, int __name ));
int _EXFUN(fsync, (int __fd));
char _EXFUN(*getcwd, (char *__buf, size_t __size ));
#if defined(__CYGWIN__)
int _EXFUN(getdomainname ,(char *__name, size_t __len));
#endif
gid_t _EXFUN(getegid, (void ));
uid_t _EXFUN(geteuid, (void ));
gid_t _EXFUN(getgid, (void ));
int _EXFUN(getgroups, (int __gidsetsize, gid_t __grouplist[] ));
char _EXFUN(*getlogin, (void ));
#if defined(_POSIX_THREAD_SAFE_FUNCTIONS)
int _EXFUN(getlogin_r, (char *name, size_t namesize) );
#endif
char _EXFUN(*getpass, (__const char *__prompt));
size_t _EXFUN(getpagesize, (void));
pid_t _EXFUN(getpgid, (pid_t));
pid_t _EXFUN(getpgrp, (void ));
pid_t _EXFUN(getpid, (void ));
pid_t _EXFUN(getppid, (void ));
uid_t _EXFUN(getuid, (void ));
#ifdef __CYGWIN__
char * _EXFUN(getusershell, (void));
char _EXFUN(*getwd, (char *__buf ));
int _EXFUN(iruserok, (unsigned long raddr, int superuser, const char *ruser, const char *luser));
#endif
int _EXFUN(isatty, (int __fildes ));
int _EXFUN(lchown, (const char *__path, uid_t __owner, gid_t __group ));
int _EXFUN(link, (const char *__path1, const char *__path2 ));
int _EXFUN(nice, (int __nice_value ));
off_t _EXFUN(lseek, (int __fildes, off_t __offset, int __whence ));
long _EXFUN(pathconf, (const char *__path, int __name ));
int _EXFUN(pause, (void ));
#ifdef __CYGWIN__
int _EXFUN(pthread_atfork, (void (*)(void), void (*)(void), void (*)(void)));
#endif
int _EXFUN(pipe, (int __fildes[2] ));
ssize_t _EXFUN(pread, (int __fd, void *__buf, size_t __nbytes, off_t __offset));
ssize_t _EXFUN(pwrite, (int __fd, const void *__buf, size_t __nbytes, off_t __offset));
_READ_WRITE_RETURN_TYPE _EXFUN(read, (int __fd, void *__buf, size_t __nbyte ));
#if defined(__CYGWIN__)
int _EXFUN(revoke, (char *path));
#endif
int _EXFUN(rmdir, (const char *__path ));
#if defined(__CYGWIN__)
int _EXFUN(ruserok, (const char *rhost, int superuser, const char *ruser, const char *luser));
#endif
#if defined(__rtems__)
void * _EXFUN(sbrk, (ptrdiff_t __incr));
#else
void * _EXFUN(sbrk, (size_t __incr));
#endif
#if defined(__CYGWIN__)
int _EXFUN(setegid, (gid_t __gid ));
int _EXFUN(seteuid, (uid_t __uid ));
#endif
int _EXFUN(setgid, (gid_t __gid ));
int _EXFUN(setpgid, (pid_t __pid, pid_t __pgid ));
int _EXFUN(setpgrp, (void ));
pid_t _EXFUN(setsid, (void ));
int _EXFUN(setuid, (uid_t __uid ));
#if defined(__CYGWIN__)
void _EXFUN(setusershell, (void));
#endif
unsigned _EXFUN(sleep, (unsigned int __seconds ));
void _EXFUN(swab, (const void *, void *, ssize_t));
long _EXFUN(sysconf, (int __name ));
pid_t _EXFUN(tcgetpgrp, (int __fildes ));
int _EXFUN(tcsetpgrp, (int __fildes, pid_t __pgrp_id ));
char _EXFUN(*ttyname, (int __fildes ));
int _EXFUN(unlink, (const char *__path ));
int _EXFUN(vhangup, (void ));
_READ_WRITE_RETURN_TYPE _EXFUN(write, (int __fd, const void *__buf, size_t __nbyte ));
extern char *optarg; /* getopt(3) external variables */
extern int optind, opterr, optopt;
int getopt(int, char * const [], const char *);
extern int optreset; /* getopt(3) external variable */
#ifndef _POSIX_SOURCE
pid_t _EXFUN(vfork, (void ));
extern char *suboptarg; /* getsubopt(3) external variable */
int getsubopt(char **, char * const *, char **);
#endif /* _POSIX_SOURCE */
/* Provide prototypes for most of the _<systemcall> names that are
provided in newlib for some compilers. */
int _EXFUN(_close, (int __fildes ));
pid_t _EXFUN(_fork, (void ));
pid_t _EXFUN(_getpid, (void ));
int _EXFUN(_link, (const char *__path1, const char *__path2 ));
off_t _EXFUN(_lseek, (int __fildes, off_t __offset, int __whence ));
_READ_WRITE_RETURN_TYPE _EXFUN(_read, (int __fd, void *__buf, size_t __nbyte ));
void * _EXFUN(_sbrk, (size_t __incr));
int _EXFUN(_unlink, (const char *__path ));
_READ_WRITE_RETURN_TYPE _EXFUN(_write, (int __fd, const void *__buf, size_t __nbyte ));
int _EXFUN(_execve, (const char *__path, char * const __argv[], char * const __envp[] ));
#define F_OK 0
#define R_OK 4
#define W_OK 2
#define X_OK 1
# define SEEK_SET 0
# define SEEK_CUR 1
# define SEEK_END 2
#include <sys/features.h>
#define STDIN_FILENO 0 /* standard input file descriptor */
#define STDOUT_FILENO 1 /* standard output file descriptor */
#define STDERR_FILENO 2 /* standard error file descriptor */
#include <bits/confname.h>
# define MAXPATHLEN 1024
#ifdef __cplusplus
}
#endif
#endif /* _SYS_UNISTD_H */