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authorUlrich Drepper <drepper@redhat.com>2005-11-27 17:14:28 +0000
committerUlrich Drepper <drepper@redhat.com>2005-11-27 17:14:28 +0000
commitfec53fc57537604829821e4665ebf4971269365e (patch)
treeb8dc54c07ebd37257d805e7ab3573a00b46ade32 /sysdeps
parent9d55da2be7d886a68fdc42393134414b6ccd6bce (diff)
downloadglibc-fec53fc57537604829821e4665ebf4971269365e.zip
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* sysdeps/posix/euidaccess.c [_LIBC] (euidaccess): Don't cache
euid and egid.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/posix/euidaccess.c88
1 files changed, 44 insertions, 44 deletions
diff --git a/sysdeps/posix/euidaccess.c b/sysdeps/posix/euidaccess.c
index 8a2d826..5464bfb 100644
--- a/sysdeps/posix/euidaccess.c
+++ b/sysdeps/posix/euidaccess.c
@@ -1,5 +1,5 @@
/* Check if effective user id can access file
- Copyright (C) 1990,91,95,96,97,98,99,2000,01 Free Software Foundation, Inc.
+ Copyright (C) 1990,1991,1995-2001,2005 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
@@ -21,26 +21,26 @@
Adapted for GNU C library by Roland McGrath. */
#ifdef HAVE_CONFIG_H
-#include <config.h>
+# include <config.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#ifdef S_IEXEC
-#ifndef S_IXUSR
-#define S_IXUSR S_IEXEC
-#endif
-#ifndef S_IXGRP
-#define S_IXGRP (S_IEXEC >> 3)
-#endif
-#ifndef S_IXOTH
-#define S_IXOTH (S_IEXEC >> 6)
-#endif
+# ifndef S_IXUSR
+# define S_IXUSR S_IEXEC
+# endif
+# ifndef S_IXGRP
+# define S_IXGRP (S_IEXEC >> 3)
+# endif
+# ifndef S_IXOTH
+# define S_IXOTH (S_IEXEC >> 6)
+# endif
#endif /* S_IEXEC */
-#if defined (HAVE_UNISTD_H) || defined (_LIBC)
-#include <unistd.h>
+#if defined HAVE_UNISTD_H || defined _LIBC
+# include <unistd.h>
#endif
#ifndef _POSIX_VERSION
@@ -55,35 +55,35 @@ gid_t getegid ();
extern int errno;
#endif
#ifndef __set_errno
-#define __set_errno(val) errno = (val)
+# define __set_errno(val) errno = (val)
#endif
-#if defined(EACCES) && !defined(EACCESS)
-#define EACCESS EACCES
+#if defined EACCES && !defined EACCESS
+# define EACCESS EACCES
#endif
#ifndef F_OK
-#define F_OK 0
-#define X_OK 1
-#define W_OK 2
-#define R_OK 4
+# define F_OK 0
+# define X_OK 1
+# define W_OK 2
+# define R_OK 4
#endif
-#if !defined (S_IROTH) && defined (R_OK)
+#if !defined S_IROTH && defined R_OK
# define S_IROTH R_OK
#endif
-#if !defined (S_IWOTH) && defined (W_OK)
+#if !defined S_IWOTH && defined W_OK
# define S_IWOTH W_OK
#endif
-#if !defined (S_IXOTH) && defined (X_OK)
+#if !defined S_IXOTH && defined X_OK
# define S_IXOTH X_OK
#endif
#ifdef _LIBC
-#define group_member __group_member
-#define euidaccess __euidaccess
+# define group_member __group_member
+# define euidaccess __euidaccess
#else
@@ -93,14 +93,6 @@ static uid_t uid;
/* The user's real group id. */
static gid_t gid;
-#ifdef HAVE_GETGROUPS
-int group_member ();
-#else
-#define group_member(gid) 0
-#endif
-
-#endif
-
/* The user's effective user id. */
static uid_t euid;
@@ -110,6 +102,14 @@ static gid_t egid;
/* Nonzero if UID, GID, EUID, and EGID have valid values. */
static int have_ids;
+# ifdef HAVE_GETGROUPS
+int group_member ();
+# else
+# define group_member(gid) 0
+# endif
+
+#endif
+
/* Return 0 if the user has permission of type MODE on file PATH;
otherwise, return -1 and set `errno' to EACCESS.
@@ -126,6 +126,9 @@ euidaccess (path, mode)
int granted;
#ifdef _LIBC
+ uid_t euid;
+ gid_t egid;
+
if (! __libc_enable_secure)
/* If we are not set-uid or set-gid, access does the same. */
return __access (path, mode);
@@ -157,12 +160,8 @@ euidaccess (path, mode)
#ifdef _LIBC
/* Now we need the IDs. */
- if (have_ids == 0)
- {
- have_ids = 1;
- euid = __geteuid ();
- egid = __getegid ();
- }
+ euid = __geteuid ();
+ egid = __getegid ();
#endif
/* The super-user can read and write any file, and execute any file
@@ -172,11 +171,12 @@ euidaccess (path, mode)
return 0;
if (euid == stats.st_uid)
- granted = (unsigned) (stats.st_mode & (mode << 6)) >> 6;
+ granted = (unsigned int) (stats.st_mode & (mode << 6)) >> 6;
else if (egid == stats.st_gid || group_member (stats.st_gid))
- granted = (unsigned) (stats.st_mode & (mode << 3)) >> 3;
+ granted = (unsigned int) (stats.st_mode & (mode << 3)) >> 3;
else
granted = (stats.st_mode & mode);
+ /* XXX Add support for ACLs. */
if (granted == mode)
return 0;
__set_errno (EACCESS);
@@ -188,9 +188,9 @@ weak_alias (__euidaccess, euidaccess)
#endif
#ifdef TEST
-#include <stdio.h>
-#include <errno.h>
-#include "error.h"
+# include <stdio.h>
+# include <errno.h>
+# include "error.h"
char *program_name;