X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Feuidaccess.c;h=ba744d5cf7e23afb247eeed0989ef362a4a24e87;hb=b37182eb01e20e28b78bc65033b01a51c658e2fc;hp=38480866601704740e759daed3a82dbc6c1d63e8;hpb=0632e115747ff96e93330c88f536d7354a7ce507;p=gnulib.git diff --git a/lib/euidaccess.c b/lib/euidaccess.c index 384808666..ba744d5cf 100644 --- a/lib/euidaccess.c +++ b/lib/euidaccess.c @@ -1,32 +1,31 @@ /* euidaccess -- check if effective user id can access file - Copyright (C) 1990, 1991, 1995, 1998, 2000, 2003, 2004, 2005, 2006 - Free Software Foundation, Inc. + Copyright (C) 1990-1991, 1995, 1998, 2000, 2003-2006, 2008-2010 Free + Software Foundation, Inc. This file is part of the GNU C Library. - This program is free software; you can redistribute it and/or modify + This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. This program 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 General Public License for more details. - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ /* Written by David MacKenzie and Torbjorn Granlund. Adapted for GNU C library by Roland McGrath. */ #ifndef _LIBC # include -# include "euidaccess.h" #endif +#include #include #include #include @@ -67,7 +66,6 @@ #else # include "group-member.h" -# include "stat-macros.h" #endif @@ -80,7 +78,9 @@ 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); @@ -111,18 +111,18 @@ euidaccess (const char *file, int mode) int saved_errno; if (uid != euid) - setreuid (euid, uid); + setreuid (euid, uid); if (gid != egid) - setregid (egid, gid); + setregid (egid, gid); result = access (file, mode); saved_errno = errno; /* Restore them. */ if (uid != euid) - setreuid (uid, euid); + setreuid (uid, euid); if (gid != egid) - setregid (gid, egid); + setregid (gid, egid); errno = saved_errno; return result; @@ -145,7 +145,7 @@ euidaccess (const char *file, int mode) /* The super-user can read and write any file, and execute any file that anyone can execute. */ if (euid == 0 && ((mode & X_OK) == 0 - || (stats.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))) + || (stats.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))) return 0; /* Convert the mode to traditional form, clearing any bogus bits. */ @@ -153,11 +153,11 @@ euidaccess (const char *file, int mode) mode &= 7; else mode = ((mode & R_OK ? 4 : 0) - + (mode & W_OK ? 2 : 0) - + (mode & X_OK ? 1 : 0)); + + (mode & W_OK ? 2 : 0) + + (mode & X_OK ? 1 : 0)); if (mode == 0) - return 0; /* The file exists. */ + return 0; /* The file exists. */ /* Convert the file's permission bits to traditional form. */ if (S_IRUSR == (4 << 6) && S_IWUSR == (2 << 6) && S_IXUSR == (1 << 6) @@ -166,14 +166,14 @@ euidaccess (const char *file, int mode) granted = stats.st_mode; else granted = ((stats.st_mode & S_IRUSR ? 4 << 6 : 0) - + (stats.st_mode & S_IWUSR ? 2 << 6 : 0) - + (stats.st_mode & S_IXUSR ? 1 << 6 : 0) - + (stats.st_mode & S_IRGRP ? 4 << 3 : 0) - + (stats.st_mode & S_IWGRP ? 2 << 3 : 0) - + (stats.st_mode & S_IXGRP ? 1 << 3 : 0) - + (stats.st_mode & S_IROTH ? 4 << 0 : 0) - + (stats.st_mode & S_IWOTH ? 2 << 0 : 0) - + (stats.st_mode & S_IXOTH ? 1 << 0 : 0)); + + (stats.st_mode & S_IWUSR ? 2 << 6 : 0) + + (stats.st_mode & S_IXUSR ? 1 << 6 : 0) + + (stats.st_mode & S_IRGRP ? 4 << 3 : 0) + + (stats.st_mode & S_IWGRP ? 2 << 3 : 0) + + (stats.st_mode & S_IXGRP ? 1 << 3 : 0) + + (stats.st_mode & S_IROTH ? 4 << 0 : 0) + + (stats.st_mode & S_IWOTH ? 2 << 0 : 0) + + (stats.st_mode & S_IXOTH ? 1 << 0 : 0)); if (euid == stats.st_uid) granted >>= 6;