X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Feuidaccess.c;h=4178354742eebe6e207ac955bab4d6452cf5df6f;hb=a6b16b69fe1cad695b270dd5bf3deb2850fc4dd1;hp=17eb724972b8fef61e8fe2e06760fea59a09ed28;hpb=cded3d983ba2d3e0c76bc1c721c78333fa31b385;p=gnulib.git diff --git a/lib/euidaccess.c b/lib/euidaccess.c index 17eb72497..417835474 100644 --- 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, 2003-2006, 2008-2011 Free + Software Foundation, Inc. This file is part of the GNU C Library. @@ -25,6 +25,7 @@ # include #endif +#include #include #include #include @@ -62,10 +63,6 @@ # undef stat # define stat stat64 -#else - -# include "group-member.h" - #endif /* Return 0 if the user has permission of type MODE on FILE; @@ -77,13 +74,15 @@ int euidaccess (const char *file, int mode) { -#if defined EFF_ONLY_OK +#if HAVE_FACCESSAT /* glibc */ + return faccessat (AT_FDCWD, file, mode, AT_EACCESS); +#elif defined EFF_ONLY_OK /* IRIX, OSF/1, Interix */ return access (file, mode | EFF_ONLY_OK); -#elif defined ACC_SELF +#elif defined ACC_SELF /* AIX */ return accessx (file, mode, ACC_SELF); -#elif HAVE_EACCESS +#elif HAVE_EACCESS /* FreeBSD */ return eaccess (file, mode); -#else +#else /* MacOS X, NetBSD, OpenBSD, HP-UX, Solaris, Cygwin, mingw, BeOS */ uid_t uid = getuid (); gid_t gid = getgid (); @@ -108,18 +107,18 @@ 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; @@ -142,7 +141,7 @@ 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. */ @@ -150,11 +149,11 @@ 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) @@ -163,14 +162,14 @@ 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;