Sat Apr 20 18:13:00 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>cvs/libc-960423cvs/libc-960422cvs/libc-960421

	* Makerules (no-whole-archive): Test $(have-no-whole-archive), not
	$(libc_cv_ld_no_whole_archive).

Sat Apr 20 17:07:17 1996  Ulrich Drepper  <drepper@cygnus.com>

	* assert/assert.h, ctype/ctype.h, dirent/dirent.h, errno.h,
	grp/grp.h, io/fcntl.h, io/sys/stat.h, io/utime.h, locale/locale.h,
	math/math.h, misc/nlist.h, misc/sgtty.h, misc/sys/file.h,
	misc/sys/ioctl.h, misc/sys/uio.h, posix/sys/times.h,
	posix/sys/types.h, posix/sys/utsname.h, posix/sys/wait.h,
	posix/tar.h, posix/wordexp.h, pwd/pwd.h, resource/sys/vlimit.h,
	resource/sys/vtimes.h, setjmp/setjmp.h, signal/signal.h,
	stdio-common/printf.h, stdlib/alloca.h, stdlib/stdlib.h,
	string/string.h, sysdeps/generic/sigaction.h,
	sysdeps/generic/sigset.h, sysdeps/generic/sys/ptrace.h,
	sysdeps/generic/sys/ptrace.h, sysdeps/unix/bsd/osf/sigaction.h,
	sysdeps/unix/sysv/linux/sys/ptrace.h,
	sysdeps/unix/sysv/minix/sigaction.h,
	sysdeps/unix/sysv/sco3.2.4/sigaction.h,
	sysdeps/unix/sysv/sysv4/sigaction.h,
	sysdeps/unix/sysv/sysv4/sigset.h, termios/termios.h,
	time/sys/time.h, time/time.h: Fix copyright comment.

	* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): If uids and gids are
	not given in stack aux vector, fetch them with syscalls.

4 files changed, 23 insertions, 7 deletions

diff --git a/sysdeps/generic/dl-sysdep.c b/sysdeps/generic/dl-sysdep.c
index 546993dbd1..4d5faad69f 100644
--- a/sysdeps/generic/dl-sysdep.c
+++ b/sysdeps/generic/dl-sysdep.c
@@ -40,6 +40,7 @@ _dl_sysdep_start (void **start_argptr,
   Elf32_auxv_t *av;
   uid_t uid, euid;
   gid_t gid, egid;
+  unsigned int seen;
 
   user_entry = (Elf32_Addr) &_start;
   _dl_argc = *(int *) start_argptr;
@@ -49,7 +50,12 @@ _dl_sysdep_start (void **start_argptr,
   while (*start_argptr)
     ++start_argptr;
 
-  for (av = (void *) ++start_argptr; av->a_type != AT_NULL; ++av)
+  seen = 0;
+#define M(type) (1 << (type))
+
+  for (av = (void *) ++start_argptr;
+       av->a_type != AT_NULL;
+       seen |= M ((++av)->a_type))
     switch (av->a_type)
       {
       case AT_PHDR:
@@ -75,6 +81,16 @@ _dl_sysdep_start (void **start_argptr,
 	break;
       }
 
+  /* Linux doesn't provide us with any of these values on the stack
+     when the dynamic linker is run directly as a program.  */
+
+#define SEE(UID, uid) if ((seen & M (AT_##UID)) == 0) uid = __get##uid ()
+  SEE (UID, uid);
+  SEE (GID, gid);
+  SEE (EUID, euid);
+  SEE (EGID, egid);
+
+
   _dl_secure = uid != euid || gid != egid;
 
 #ifdef DL_SYSDEP_INIT
diff --git a/sysdeps/generic/sigaction.h b/sysdeps/generic/sigaction.h
index 31ce45c705..1676b1ce8e 100644
--- a/sysdeps/generic/sigaction.h
+++ b/sysdeps/generic/sigaction.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1996 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
@@ -13,7 +13,7 @@ Library General Public License for more details.
 
 You should have received a copy of the GNU Library General Public
 License along with the GNU C Library; see the file COPYING.LIB.  If
-not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
 Cambridge, MA 02139, USA.  */
 
 /* These definitions match those used by the 4.4 BSD kernel.
diff --git a/sysdeps/generic/sigset.h b/sysdeps/generic/sigset.h
index b3664e7876..e9dc7c728b 100644
--- a/sysdeps/generic/sigset.h
+++ b/sysdeps/generic/sigset.h
@@ -1,5 +1,5 @@
 /* __sig_atomic_t, __sigset_t, and related definitions.  Generic/BSD version.
-Copyright (C) 1991, 1992, 1994 Free Software Foundation, Inc.
+Copyright (C) 1991, 1992, 1994, 1996 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
@@ -14,7 +14,7 @@ Library General Public License for more details.
 
 You should have received a copy of the GNU Library General Public
 License along with the GNU C Library; see the file COPYING.LIB.  If
-not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
 Cambridge, MA 02139, USA.  */
 
 #ifndef	_SIGSET_H_types
diff --git a/sysdeps/generic/sys/ptrace.h b/sysdeps/generic/sys/ptrace.h
index a342e62d64..5fab97e51f 100644
--- a/sysdeps/generic/sys/ptrace.h
+++ b/sysdeps/generic/sys/ptrace.h
@@ -1,5 +1,5 @@
 /* `ptrace' debugger support interface.  Generic version; constants are common.
-Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+Copyright (C) 1991, 1992, 1996 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
@@ -14,7 +14,7 @@ Library General Public License for more details.
 
 You should have received a copy of the GNU Library General Public
 License along with the GNU C Library; see the file COPYING.LIB.  If
-not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
 Cambridge, MA 02139, USA.  */
 
 #ifndef	_PTRACE_H