kc3-lang/gnulib/modules/lchown

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• Hash : 84405cbc
  Author :
  Date : 2009-11-16T14:35:41
  

  chown: work around OpenBSD bug
  
  chown(name,geteuid(),-1) failed to update the change time if
  name was already owned by the current effective user.  Work
  around it by using chmod, which does not have this bug.
  
  Unfortunately, lchown has the same bug, but OpenBSD 4.0 lacks
  lchmod and lutimes, so there is no way to affect ctime without
  unlinking and recreating the symlink, which is too dangerous.
  
  * lib/chown.c (rpl_chown): Work around the bug.
  * lib/lchown.c (rpl_lchown): Attempt to do likewise.
  * m4/chown.m4 (gl_FUNC_CHOWN): Test for ctime bug.
  * m4/lchown.m4 (gl_FUNC_LCHOWN): Check for lchmod.
  * modules/chown (Depends-on): Add stdbool.
  * modules/lchown (Depends-on): Likewise.
  * doc/posix-functions/chown.texi (chown): Document the bug.
  * doc/posix-functions/lchown.texi (lchown): Likewise.
  * tests/test-lchown.h (test_chown): Relax test.
  
  Signed-off-by: Eric Blake <ebb9@byu.net>
  

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• modules/lchown

• Description:
  lchown() function: change ownership of a file, without following symlinks.
  
  Files:
  lib/lchown.c
  m4/lchown.m4
  
  Depends-on:
  chown
  errno
  lstat
  stdbool
  sys_stat
  unistd
  
  configure.ac:
  gl_FUNC_LCHOWN
  gl_UNISTD_MODULE_INDICATOR([lchown])
  
  Makefile.am:
  
  Include:
  <unistd.h>
  
  License:
  GPL
  
  Maintainer:
  Jim Meyering, Eric Blake
  

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