update from main archive 970122cvs/libc-970124

1997-01-23  Paul Eggert  <eggert@twinsun.com>

	* mktime.c (mktime): Invoke __tzset, not __tzset_internal, to set tz,
	so that tzname is set as POSIX requires.

Fri Jan 24 02:49:18 1997  Ulrich Drepper  <drepper@cygnus.com>

	* dirent/dirent.h: Declare readdir_r also when __USE_POSIX.
	* grp/grp.h: Declare *_r functions also when __USE_POSIX.
	* pwd/pwd.h: Likewise.
	* time/time.h: Likewise.
	* posix/unistd.h: Declare ttyname_r also when __USE_POSIX.
	* string/string.h: Declare strtok_r also when __USE_POSIX.

	* stdio-common/bug7.c: Use tmpnam to generate names for test files.

	* stdio-common/tmpnam.c: Update copyright.
	* stdio-common/tmpnam_r.c: Likewise.

	* sysdeps/unix/sysv/linux/alpha/sys/kernel_termios.h: Protect
	against multiple inclusion.  Include <termbits.h>.
	* sysdeps/unix/sysv/linux/sys/kernel_termios.h: Likewise.

	* sysdeps/unix/sysv/linux/net/if.h: Update according to recent
	kernel headers.  Patch by Philip Blundell <pjb27@cam.ac.uk>.

Thu Jan 23 17:42:00 1997  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/sparc/clone.S: Correct author attribution.

	* sysdeps/unix/sysv/linux/net/if_arp (MAX_ADDR_LEN): Add definition.

Thu Jan 23 14:20:34 1997  Ulrich Drepper  <drepper@cygnus.com>

	* time/tzfile.c (__tzfile_read): Don't allow arbitrary files to be
	read when running a setuid program.

5 files changed, 22 insertions, 4 deletions

diff --git a/sysdeps/unix/sysv/linux/alpha/sys/kernel_termios.h b/sysdeps/unix/sysv/linux/alpha/sys/kernel_termios.h
index eebe976ce1..4be759a51f 100644
--- a/sysdeps/unix/sysv/linux/alpha/sys/kernel_termios.h
+++ b/sysdeps/unix/sysv/linux/alpha/sys/kernel_termios.h
@@ -1,5 +1,10 @@
+#ifndef _SYS_KERNEL_TERMIOS_H
+#define _SYS_KERNEL_TERMIOS_H 1
 /* The following corresponds to the values from the Linux 2.1.20 kernel.  */
 
+/* We need the definition of tcflag_t, cc_t, and speed_t.  */
+#include <termbits.h>
+
 #define __KERNEL_NCCS 19
 
 struct __kernel_termios
@@ -16,3 +21,5 @@ struct __kernel_termios
 
 #define _HAVE_C_ISPEED 1
 #define _HAVE_C_OSPEED 1
+
+#endif /* sys/kernel_termios.h */
diff --git a/sysdeps/unix/sysv/linux/net/if.h b/sysdeps/unix/sysv/linux/net/if.h
index bf261175ec..db86d20f23 100644
--- a/sysdeps/unix/sysv/linux/net/if.h
+++ b/sysdeps/unix/sysv/linux/net/if.h
@@ -105,7 +105,7 @@ struct ifreq
 	struct sockaddr ifru_netmask;
 	struct sockaddr ifru_hwaddr;
 	short int ifru_flags;
-	int ifru_metric;
+	int ifru_ivalue;
 	int ifru_mtu;
 	struct ifmap ifru_map;
 	char ifru_slave[IFNAMSIZ];	/* Just fits the size */
@@ -120,11 +120,12 @@ struct ifreq
 #define	ifr_broadaddr	ifr_ifru.ifru_broadaddr	/* broadcast address	*/
 #define	ifr_netmask	ifr_ifru.ifru_netmask	/* interface net mask	*/
 #define	ifr_flags	ifr_ifru.ifru_flags	/* flags		*/
-#define	ifr_metric	ifr_ifru.ifru_metric	/* metric		*/
+#define	ifr_metric	ifr_ifru.ifru_ivalue	/* metric		*/
 #define	ifr_mtu		ifr_ifru.ifru_mtu	/* mtu			*/
 #define ifr_map		ifr_ifru.ifru_map	/* device map		*/
 #define ifr_slave	ifr_ifru.ifru_slave	/* slave device		*/
 #define	ifr_data	ifr_ifru.ifru_data	/* for use by interface	*/
+#define ifr_ifindex	ifr_ifru.ifru_ivalue    /* interface index      */
 
 
 /* Structure used in SIOCGIFCONF request.  Used to retrieve interface
diff --git a/sysdeps/unix/sysv/linux/net/if_arp.h b/sysdeps/unix/sysv/linux/net/if_arp.h
index ae0e799fb6..cf48f10f79 100644
--- a/sysdeps/unix/sysv/linux/net/if_arp.h
+++ b/sysdeps/unix/sysv/linux/net/if_arp.h
@@ -29,6 +29,10 @@
 
 __BEGIN_DECLS
 
+/* Some internals from deep down in the kernel.  */
+#define MAX_ADDR_LEN	7
+
+
 /* This structure defines an ethernet arp header.  */
 
 /* ARP protocol opcodes. */
diff --git a/sysdeps/unix/sysv/linux/sparc/clone.S b/sysdeps/unix/sysv/linux/sparc/clone.S
index 9e1ba812b0..64735e9dbc 100644
--- a/sysdeps/unix/sysv/linux/sparc/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/clone.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
-   Contributed by Miguel de Icaza (miguel@nuclecu.unam.mx)
-   Based on code written for the Intel by Richard Henderson (rth@tamu.edu).
+   Contributed by Richard Henderson (rth@tamu.edu).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public License as
diff --git a/sysdeps/unix/sysv/linux/sys/kernel_termios.h b/sysdeps/unix/sysv/linux/sys/kernel_termios.h
index 95349760f0..629508e765 100644
--- a/sysdeps/unix/sysv/linux/sys/kernel_termios.h
+++ b/sysdeps/unix/sysv/linux/sys/kernel_termios.h
@@ -1,5 +1,10 @@
+#ifndef _SYS_KERNEL_TERMIOS_H
+#define _SYS_KERNEL_TERMIOS_H 1
 /* The following corresponds to the values from the Linux 2.1.20 kernel.  */
 
+/* We need the definition of tcflag_t, cc_t, and speed_t.  */
+#include <termbits.h>
+
 #define __KERNEL_NCCS 19
 
 struct __kernel_termios
@@ -11,3 +16,5 @@ struct __kernel_termios
     cc_t c_line;		/* line discipline */
     cc_t c_cc[__KERNEL_NCCS];	/* control characters */
   };
+
+#endif /* sys/kernel_termios.h */