Mercurial > hg > octave-lyh > gnulib-hg
changeset 11944:660d7f74a5e8
euidaccess: prefer POSIX over non-standard implementation
* m4/euidaccess.m4 (gl_PREREQ_EUIDACCESS): Check for faccessat.
* lib/euidaccess.c (euidaccess): Use it if available.
Signed-off-by: Eric Blake <ebb9@byu.net>
| author | Eric Blake <ebb9@byu.net> |
|---|---|
| date | Thu, 03 Sep 2009 13:43:12 -0600 |
| parents | 6e808da2cce5 |
| children | 2cf208dc022b |
| files | ChangeLog lib/euidaccess.c m4/euidaccess.m4 |
| diffstat | 3 files changed, 13 insertions(+), 4 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2009-09-03 Eric Blake <ebb9@byu.net> + euidaccess: prefer POSIX over non-standard implementation + * m4/euidaccess.m4 (gl_PREREQ_EUIDACCESS): Check for faccessat. + * lib/euidaccess.c (euidaccess): Use it if available. + openat: make template easier to use * lib/at-func.c (CALL_FUNC): Allow AT_FUNC_USE_F1_COND and AT_FUNC_F2 to be undefined.
--- a/lib/euidaccess.c +++ b/lib/euidaccess.c @@ -1,7 +1,7 @@ /* euidaccess -- check if effective user id can access file - Copyright (C) 1990, 1991, 1995, 1998, 2000, 2003, 2004, 2005, 2006, 2008 - Free Software Foundation, Inc. + Copyright (C) 1990, 1991, 1995, 1998, 2000, 2003, 2004, 2005, 2006, + 2008, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -77,7 +77,9 @@ int euidaccess (const char *file, int mode) { -#if defined EFF_ONLY_OK +#if HAVE_FACCESSAT + return faccessat (AT_FDCWD, file, mode, AT_EACCESS); +#elif defined EFF_ONLY_OK return access (file, mode | EFF_ONLY_OK); #elif defined ACC_SELF return accessx (file, mode, ACC_SELF);
--- a/m4/euidaccess.m4 +++ b/m4/euidaccess.m4 @@ -1,4 +1,4 @@ -# euidaccess.m4 serial 10 +# euidaccess.m4 serial 11 dnl Copyright (C) 2002-2009 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -31,6 +31,9 @@ # Prerequisites of lib/euidaccess.c. AC_DEFUN([gl_PREREQ_EUIDACCESS], [ + dnl Prefer POSIX faccessat over non-standard euidaccess. + AC_CHECK_FUNCS_ONCE([faccessat]) + dnl Try various other non-standard fallbacks. AC_CHECK_HEADERS_ONCE([libgen.h]) AC_CHECK_DECLS_ONCE([setregid]) AC_REQUIRE([AC_FUNC_GETGROUPS])