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-rw-r--r--sysdeps/unix/sysv/linux/i386/fchownat.c120
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/fchownat.c139
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c160
-rw-r--r--sysdeps/unix/sysv/linux/sh/fchownat.c141
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c2
5 files changed, 33 insertions, 529 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/fchownat.c b/sysdeps/unix/sysv/linux/i386/fchownat.c
index db5481705a..34acf10c27 100644
--- a/sysdeps/unix/sysv/linux/i386/fchownat.c
+++ b/sysdeps/unix/sysv/linux/i386/fchownat.c
@@ -30,33 +30,6 @@
 #include <linux/posix_types.h>
 #include <kernel-features.h>
 
-/*
-  In Linux 2.1.x the chown functions have been changed.  A new function lchown
-  was introduced.  The new chown now follows symlinks - the old chown and the
-  new lchown do not follow symlinks.
-  The new lchown function has the same number as the old chown had and the
-  new chown has a new number.  When compiling with headers from Linux > 2.1.8x
-  it's impossible to run this libc with older kernels.  In these cases libc
-  has therefore to route calls to chown to the old chown function.
-*/
-
-extern int __chown_is_lchown (const char *__file, uid_t __owner,
-			      gid_t __group);
-extern int __real_chown (const char *__file, uid_t __owner, gid_t __group);
-
-
-#if defined __NR_lchown || __ASSUME_LCHOWN_SYSCALL > 0
-/* Running under Linux > 2.1.80.  */
-
-# ifdef __NR_chown32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-#  endif
-# endif /* __NR_chown32 */
-#endif
-
 
 int
 fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
@@ -105,92 +78,33 @@ fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
       file = buf;
     }
 
+# if __ASSUME_32BITUIDS > 0
+  /* This implies __ASSUME_LCHOWN_SYSCALL.  */
   INTERNAL_SYSCALL_DECL (err);
 
-# if defined __NR_lchown || __ASSUME_LCHOWN_SYSCALL > 0
-#  if __ASSUME_LCHOWN_SYSCALL == 0
-  static int __libc_old_chown;
-
-#   ifdef __NR_chown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      if (flag & AT_SYMLINK_NOFOLLOW)
-	result = INTERNAL_SYSCALL (lchown32, err, 3, CHECK_STRING (file),
-				   owner, group);
-      else
-	result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file),
-				   owner, group);
-
-      if (!INTERNAL_SYSCALL_ERROR_P (result, err))
-	return result;
-      if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	goto fail;
-
-      __libc_missing_32bit_uids = 1;
-    }
-#   endif /* __NR_chown32 */
-
-  if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
+  if (flag & AT_SYMLINK_NOFOLLOW)
+    result = INTERNAL_SYSCALL (lchown32, err, 3, CHECK_STRING (file), owner,
+			       group);
+  else
+    result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file), owner,
+			       group);
 
-  if (!__libc_old_chown && (flag & AT_SYMLINK_NOFOLLOW) == 0)
-    {
-      result = INTERNAL_SYSCALL (chown, err, 3, CHECK_STRING (file), owner,
-				 group);
-
-      if (!INTERNAL_SYSCALL_ERROR_P (result, err))
-	return result;
-      if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	goto fail;
-
-      __libc_old_chown = 1;
-    }
-
-  result = INTERNAL_SYSCALL (lchown, err, 3, CHECK_STRING (file), owner,
-			     group);
-#  elif __ASSUME_32BITUIDS
-  /* This implies __ASSUME_LCHOWN_SYSCALL.  */
-  result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file), owner,
-			     group);
-#  else
-  /* !__ASSUME_32BITUIDS && ASSUME_LCHOWN_SYSCALL  */
-#   ifdef __NR_chown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file), owner,
-				 group);
-      if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
-	return result;
-      if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	goto fail;
-
-      __libc_missing_32bit_uids = 1;
-    }
-#   endif /* __NR_chown32 */
-  if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
+  if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
     {
-      __set_errno (EINVAL);
+      __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
       return -1;
     }
-
-  result = INTERNAL_SYSCALL (chown, err, 3, CHECK_STRING (file), owner, group);
-#  endif
 # else
-  result = INTERNAL_SYSCALL (chown, err, 3, CHECK_STRING (file), owner, group);
+  /* Don't inline the rest to avoid unnecessary code duplication.  */
+  if (flag & AT_SYMLINK_NOFOLLOW)
+    result = __lchown (file, owner, group);
+  else
+    result = __chown (file, owner, group);
+  if (result < 0)
+    __atfct_seterrno (errno, fd, buf);
 # endif
 
-  if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
-    goto fail;
-
   return result;
 
- fail:
-  __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
-  return -1;
 #endif
 }
diff --git a/sysdeps/unix/sysv/linux/powerpc/fchownat.c b/sysdeps/unix/sysv/linux/powerpc/fchownat.c
index f1b9b4db4a..67c570648a 100644
--- a/sysdeps/unix/sysv/linux/powerpc/fchownat.c
+++ b/sysdeps/unix/sysv/linux/powerpc/fchownat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2006 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
@@ -81,143 +81,30 @@ fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
       file = buf;
     }
 
+# if __ASSUME_LCHOWN_SYSCALL
   INTERNAL_SYSCALL_DECL (err);
 
-# if __ASSUME_LCHOWN_SYSCALL
   if (flag & AT_SYMLINK_NOFOLLOW)
     result = INTERNAL_SYSCALL (lchown, err, 3, file, owner, group);
   else
     result = INTERNAL_SYSCALL (chown, err, 3, file, owner, group);
-# else
-  char link[PATH_MAX + 2];
-  char path[2 * PATH_MAX + 4];
-  int loopct;
-  size_t filelen;
-  static int libc_old_chown = 0 /* -1=old linux, 1=new linux, 0=unknown */;
-
-  if (libc_old_chown == 1)
-    {
-      if (flag & AT_SYMLINK_NOFOLLOW)
-	result = INTERNAL_SYSCALL (lchown, err, 3, __ptrvalue (file), owner,
-				   group);
-      else
-	result = INTERNAL_SYSCALL (chown, err, 3, __ptrvalue (file), owner,
-				   group);
-      goto out;
-    }
-
-#  ifdef __NR_lchown
-  if (flag & AT_SYMLINK_NOFOLLOW)
-    {
-      result = INTERNAL_SYSCALL (lchown, err, 3, __ptrvalue (file), owner,
-				 group);
-      goto out;
-    }
-
-  if (libc_old_chown == 0)
-    {
-      result = INTERNAL_SYSCALL (chown, err, 3, __ptrvalue (file), owner,
-				 group);
-      if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
-	return result;
-      if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	{
-	  libc_old_chown = 1;
-	  goto fail;
-	}
-      libc_old_chown = -1;
-    }
-#  else
-  if (flag & AT_SYMLINK_NOFOLLOW)
-    {
-      result = INTERNAL_SYSCALL (chown, err, 3, __ptrvalue (file), owner,
-				 group);
-      goto out;
-    }
-#  endif
-
-  result = __readlink (file, link, PATH_MAX + 1);
-  if (result == -1)
-    {
-#  ifdef __NR_lchown
-      result = INTERNAL_SYSCALL (lchown, err, 3, __ptrvalue (file), owner,
-				 group);
-#  else
-      result = INTERNAL_SYSCALL (chown, err, 3, __ptrvalue (file), owner,
-				 group);
-#  endif
-      goto out;
-    }
-
-  filelen = strlen (file) + 1;
-  if (filelen > sizeof (path))
-    {
-      errno = ENAMETOOLONG;
-      return -1;
-    }
-  memcpy (path, file, filelen);
-
-  /* 'The system has an arbitrary limit...'  In practise, we'll hit
-     ENAMETOOLONG before this, usually.  */
-  for (loopct = 0; loopct < 128; ++loopct)
-    {
-      size_t linklen;
-
-      if (result >= PATH_MAX + 1)
-	{
-	  errno = ENAMETOOLONG;
-	  return -1;
-	}
-
-      link[result] = 0;  /* Null-terminate string, just-in-case.  */
-
-      linklen = strlen (link) + 1;
-
-      if (link[0] == '/')
-	memcpy (path, link, linklen);
-      else
-	{
-	  filelen = strlen (path);
-
-	  while (filelen > 1 && path[filelen - 1] == '/')
-	    --filelen;
-	  while (filelen > 0 && path[filelen - 1] != '/')
-	    --filelen;
-	  if (filelen + linklen > sizeof (path))
-	    {
-	      errno = ENAMETOOLONG;
-	      return -1;
-	    }
-	  memcpy (path + filelen, link, linklen);
-	}
-
-      result = __readlink (path, link, PATH_MAX + 1);
-
-      if (result == -1)
-	{
-#  ifdef __NR_lchown
-	  result = INTERNAL_SYSCALL (lchown, err, 3, path, owner, group);
-#  else
-	  result = INTERNAL_SYSCALL (chown, err, 3, path, owner, group);
-#  endif
-	  goto out;
-	}
-    }
-  __set_errno (ELOOP);
-  return -1;
-
- out:
-# endif
 
   if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
     {
-# if !__ASSUME_LCHOWN_SYSCALL
-    fail:
-# endif
       __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
-      result = -1;
+      return -1;
     }
+# else
+  /* Don't inline the rest to avoid unnecessary code duplication.  */
+  if (flag & AT_SYMLINK_NOFOLLOW)
+    result = __lchown (file, owner, group);
+  else
+    result = __chown (file, owner, group);
+  if (result < 0)
+    __atfct_seterrno (errno, fd, buf);
+# endif
 
   return result;
+
 #endif
 }
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c b/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c
index abc06b07d9..dfed76aeb4 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c
@@ -1,159 +1 @@
-/* Copyright (C) 2005, 2006 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.  */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-#include <shlib-compat.h>
-#include <bp-checks.h>
-
-#include <linux/posix_types.h>
-#include <kernel-features.h>
-
-/*
-  In Linux 2.1.x the chown functions have been changed.  A new function lchown
-  was introduced.  The new chown now follows symlinks - the old chown and the
-  new lchown do not follow symlinks.
-  The new lchown function has the same number as the old chown had and the
-  new chown has a new number.  When compiling with headers from Linux > 2.1.8x
-  it's impossible to run this libc with older kernels.  In these cases libc
-  has therefore to route calls to chown to the old chown function.
-*/
-
-/* Running under Linux > 2.1.80.  */
-
-#ifdef __NR_chown32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_chown32 */
-
-int
-fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
-{
-  int result;
-
-#ifdef __NR_fchownat
-# ifndef __ASSUME_ATFCTS
-  if (__have_atfcts >= 0)
-# endif
-    {
-      result = INLINE_SYSCALL (fchownat, 5, fd, file, owner, group, flag);
-# ifndef __ASSUME_ATFCTS
-      if (result == -1 && errno == ENOSYS)
-	__have_atfcts = -1;
-      else
-# endif
-	return result;
-    }
-#endif
-
-#ifndef __ASSUME_ATFCTS
-  if (flag & ~AT_SYMLINK_NOFOLLOW)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  char *buf = NULL;
-
-  if (fd != AT_FDCWD && file[0] != '/')
-    {
-      size_t filelen = strlen (file);
-      static const char procfd[] = "/proc/self/fd/%d/%s";
-      /* Buffer for the path name we are going to use.  It consists of
-	 - the string /proc/self/fd/
-	 - the file descriptor number
-	 - the file name provided.
-	 The final NUL is included in the sizeof.   A bit of overhead
-	 due to the format elements compensates for possible negative
-	 numbers.  */
-      size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen;
-      buf = alloca (buflen);
-
-      __snprintf (buf, buflen, procfd, fd, file);
-      file = buf;
-    }
-
-  INTERNAL_SYSCALL_DECL (err);
-
-# if __ASSUME_32BITUIDS > 0
-  result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file), owner,
-			     group);
-# else
-  static int __libc_old_chown;
-
-#  ifdef __NR_chown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      if (flag & AT_SYMLINK_NOFOLLOW)
-	result = INTERNAL_SYSCALL (lchown32, err, 3, CHECK_STRING (file),
-				   owner, group);
-      else
-	result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file),
-				   owner, group);
-
-      if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
-	return result;
-      if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	goto fail;
-
-      __libc_missing_32bit_uids = 1;
-    }
-#  endif /* __NR_chown32 */
-  if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  if (!__libc_old_chown && (flag & AT_SYMLINK_NOFOLLOW) == 0)
-    {
-      result = INTERNAL_SYSCALL (chown, err, 3, CHECK_STRING (file), owner,
-				 group);
-
-      if (!INTERNAL_SYSCALL_ERROR_P (result, err))
-	return result;
-      if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	goto fail;
-
-      __libc_old_chown = 1;
-    }
-
-  result = INTERNAL_SYSCALL (lchown, err, 3, CHECK_STRING (file), owner,
-			     group);
-# endif
-
-  if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
-    {
-    fail:
-      __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
-      result = -1;
-    }
-
-  return result;
-#endif
-}
+#include <sysdeps/unix/sysv/linux/i386/fchownat.c>
diff --git a/sysdeps/unix/sysv/linux/sh/fchownat.c b/sysdeps/unix/sysv/linux/sh/fchownat.c
index 61df787c2a..dfed76aeb4 100644
--- a/sysdeps/unix/sysv/linux/sh/fchownat.c
+++ b/sysdeps/unix/sysv/linux/sh/fchownat.c
@@ -1,140 +1 @@
-/* Copyright (C) 2005, 2006 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.  */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-#include <bp-checks.h>
-
-#include <linux/posix_types.h>
-#include <kernel-features.h>
-
-#ifdef __NR_chown32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_chown32 */
-
-int
-fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
-{
-  int result;
-
-#ifdef __NR_fchownat
-# ifndef __ASSUME_ATFCTS
-  if (__have_atfcts >= 0)
-# endif
-    {
-      result = INLINE_SYSCALL (fchownat, 5, fd, file, owner, group, flag);
-# ifndef __ASSUME_ATFCTS
-      if (result == -1 && errno == ENOSYS)
-	__have_atfcts = -1;
-      else
-# endif
-	return result;
-    }
-#endif
-
-#ifndef __ASSUME_ATFCTS
-  if (flag & ~AT_SYMLINK_NOFOLLOW)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  char *buf = NULL;
-
-  if (fd != AT_FDCWD && file[0] != '/')
-    {
-      size_t filelen = strlen (file);
-      static const char procfd[] = "/proc/self/fd/%d/%s";
-      /* Buffer for the path name we are going to use.  It consists of
-	 - the string /proc/self/fd/
-	 - the file descriptor number
-	 - the file name provided.
-	 The final NUL is included in the sizeof.   A bit of overhead
-	 due to the format elements compensates for possible negative
-	 numbers.  */
-      size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen;
-      buf = alloca (buflen);
-
-      __snprintf (buf, buflen, procfd, fd, file);
-      file = buf;
-    }
-
-  INTERNAL_SYSCALL_DECL (err);
-
-# if __ASSUME_32BITUIDS > 0
-  if (flag & AT_SYMLINK_NOFOLLOW)
-    result = INTERNAL_SYSCALL (lchown32, err, 3, CHECK_STRING (file), owner,
-			       group);
-  else
-    result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file), owner,
-			       group);
-# else
-#  ifdef __NR_chown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      if (flag & AT_SYMLINK_NOFOLLOW)
-	result = INTERNAL_SYSCALL (lchown32, err, 3, CHECK_STRING (file),
-				   owner, group);
-      else
-	result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file), owner,
-				   group);
-
-      if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
-	return result;
-      if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	goto fail;
-
-      __libc_missing_32bit_uids = 1;
-    }
-#  endif /* __NR_chown32 */
-
-  if (((owner + 1) > (gid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  if (flag & AT_SYMLINK_NOFOLLOW)
-    result = INTERNAL_SYSCALL (lchown, err, 3, CHECK_STRING (file), owner,
-			       group);
-  else
-    result = INTERNAL_SYSCALL (chown, err, 3, CHECK_STRING (file), owner,
-			       group);
-# endif
-
-  if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
-    {
-    fail:
-      __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
-      result = -1;
-    }
-
-  return result;
-#endif
-}
+#include <sysdeps/unix/sysv/linux/i386/fchownat.c>
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c b/sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c
index 7ba5bf44a1..dfed76aeb4 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c
@@ -1 +1 @@
-#include <sysdeps/unix/sysv/linux/sh/fchownat.c>
+#include <sysdeps/unix/sysv/linux/i386/fchownat.c>