Sat Sep 16 17:47:19 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>

	* elf/elf.h (AT_GID): Fix typo: Read -> Real.

	* misc/efgvt_r.c: New file.  Reentrant version of [efg]cvt functions.
	* misc/efgcvt.c: Rewrite to use reentrant functions.
	* misc/hsearch_r.c: New file.  Reentrant version of functions from
	hsearch family.
	* misc/hsearch.c, misc/tsearch.c: New files.
	* misc/Makefile (routines): Add efgcvt_r, hsearch_r, hsearch, tsearch.

	* posix/unistd.h (ttyname_r): Add prototype for new function.

	* stdlib/drand48_r.c, stdlib/erand48_r.c, stdlib/jrand48_r.c,
	stdlib/lrand48_r.c, stdlib/mrand48_r.c, stdlib/nrand48_r.c,
	stdlib/seed48_r.c, stdlib/srand48_r.c, stdlib/lcong48_r.c,
	stdlib/drand48-iter.c: New files implementing reentrant versions
	of functions from drand48 family.
	* stdlib/seed48.c, stdlib/drand48.c, stdlib/erand48.c,
	stdlib/jrand48.c, stdlib/lrand48.c, stdlib/mrand48.c,
	stdlib/nrand48.c, stdlib/srand48.c, stdlib/lcong48.c:
	Rewrite to use reentrant versions.
	* stdlib/a64l.c, stdlib/l64a.c: New files.  Implement a64l()
	and l64a() functions from SysV library.
	* stdlib/Makefile (routines): Add drand48_r, erand48_r, lrand48_r,
	nrand48_r, mrand48_r, jrand48_r, srand48_r, seed48_r, lcong48_r,
	drand48-iter, a64l, l64a.
	* stdlib/stdlib.h: Declare them.

	* stdlib/random_r.c: New file.  Reentrant version of functions
	from random family.
	* stdlib/stdlib.h: Declare them.
	* stdlib/random.c: Rewrite to use reentrant functions.

	* string/strerror_r.c: New file.  Reentrant version.
	* string/strerror.c: Change for new _strerror_internal form.
	* string/Makefile (routines): Add strerror_r.

	* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Set default
	value of user_entry to `_start'.
	Close AT_ENTRY case with `break'.

	* sysdeps/generic/strstr.c: New and much faster implementation
	by Stephen R. van den Berg.

	* sysdeps/generic/_strerror.c: _strerror_internal now takes
	three argument and has and explicit buffer length.
	* sysdeps/mach/_strerror.c: Change for new interface with three
	arguments.
	* stdio/perror.c, stdio/vfprintf.c: Callers changed.
	
	* sysdeps/mach/hurd/ttyname_r.c: New file.  Reentrant version.
	* sysdeps/posix/ttyname_r.c: New file.  Reentrant version.
	* sysdeps/stub/ttyname_r: New file.  Define as dummy function.

	* sysdeps/posix/utimes.c: Include <utime.h> for prototype.
	(utimes): First parameter to utime must be file, not path.

	* sysdeps/posix/sysconf.c (__sysconf): Test for CLK_TCK in case
	_SC_CLK_TCK and return it when available.
	Test for STREAM_MAX in case _SC_STREAM_MAX and return it when
	available.
	Add case for _SC_2_LOCALEDEF which is now available.

	* posix/sys/types.h [__USE_SVID] (key_t): New type.
	* sysvipc/Makefile, sysvipc/ftok.c, sysvipc/sys/ipc.h,
	sysvipc/sys/msg.h, sysvipc/sys/sem.h, sysvipc/sys/shm.h,
	sysdeps/stub/sys/msq_buf.h, sysdeps/stub/sys/sem_buf.h,
	sysdeps/stub/sys/shm_buf.h, sysdeps/stub/sys/ipc_buf.h,
	sysdeps/stub/semctl.c, sysdeps/stub/semget.c, sysdeps/stub/semop.c,
	sysdeps/stub/shmat.c, sysdeps/stub/shmctl.c, sysdeps/stub/shmdt.c,
	sysdeps/stub/shmget.c, sysdeps/stub/msgctl.c, sysdeps/stub/msgget.c,
	sysdeps/stub/msgrcv.c, sysdeps/stub/msgsnd.c: New files.
	Add implementation of System V IPC.

6 files changed, 277 insertions, 0 deletions

diff --git a/sysvipc/Makefile b/sysvipc/Makefile
new file mode 100644
index 0000000000..7cedab62e9
--- /dev/null
+++ b/sysvipc/Makefile
@@ -0,0 +1,31 @@
+# Copyright (C) 1995 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
+# modify it under the terms of the GNU Library General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+
+# The GNU C Library 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
+# 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 Free Software Foundation, Inc., 675 Mass Ave,
+# Cambridge, MA 02139, USA.
+
+#
+#	Sub-makefile for sysvipc portion of the library.
+#
+subdir	:= sysvipc
+
+headers	:= sys/ipc.h sys/msg.h sys/sem.h sys/shm.h \
+	   sys/ipc_buf.h sys/msq_buf.h sys/sem_buf.h sys/shm_buf.h
+
+routines := msgsnd msgrcv msgget msgctl \
+	    semop semget semctl \
+	    shmat shmdt shmget shmctl
+
+include ../Rules
diff --git a/sysvipc/ftok.c b/sysvipc/ftok.c
new file mode 100644
index 0000000000..4ecc3e6822
--- /dev/null
+++ b/sysvipc/ftok.c
@@ -0,0 +1,37 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+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 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/ipc.h>
+#include <sys/stat.h>
+
+key_t
+ftok (pathname, proj_id)
+     char *pathname;
+     char proj_id;
+{
+  struct stat st;
+  key_t key;
+
+  if (__stat (pathname, &st) < 0)
+    return (key_t) -1;
+
+  key = (st.st_ino & 0xffff) | ((st.st_dev & 0xff) << 16) | (id << 24);
+
+  return key;
+}
diff --git a/sysvipc/sys/ipc.h b/sysvipc/sys/ipc.h
new file mode 100644
index 0000000000..d459be7754
--- /dev/null
+++ b/sysvipc/sys/ipc.h
@@ -0,0 +1,33 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+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 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_IPC_H
+#define _SYS_IPC_H
+
+/* Get system dependent definition of `struct ipc_perm' and more.  */
+#include <sys/ipc_buf.h>
+
+__BEGIN_DECLS
+
+/* Generates key for System V style IPC.  */
+extern key_t ftok __P ((char *__pathname, char __proj_id));
+
+__END_DECLS
+
+#endif /* sys/ipc.h */
diff --git a/sysvipc/sys/msg.h b/sysvipc/sys/msg.h
new file mode 100644
index 0000000000..22df1eca95
--- /dev/null
+++ b/sysvipc/sys/msg.h
@@ -0,0 +1,61 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+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 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_MSG_H
+#define _SYS_MSG_H
+
+#include <features.h>
+#include <sys/types.h>
+
+/* Get common definition of System V style IPC.  */
+#include <sys/ipc.h>
+
+/* Get system dependent definition of `struct msqid_ds' and more.  */
+#include <sys/msq_buf.h>
+
+__BEGIN_DECLS
+
+/* The following System V style IPC functions implement a message queue
+   system.  The definition is found in XPG2.  */
+
+/* Template for struct to be used as argument for `msgsnd' and `msgrcv'.  */
+struct msgbuf
+{
+  long mtype;			/* type of received/sent message */
+  char mtext[1];		/* text of the message */
+};
+
+
+/* Message queue control operation.  */
+extern int msgctl __P ((int __msqid, int __cmd, struct msqid_ds *__buf));
+
+/* Get messages queue.  */
+extern int msgget __P ((key_t __key, int __msgflg));
+
+/* Receive message from message queue.  */
+extern int msgrcv __P ((int __msqid, void *__msgp, size_t __msgsz,
+			long __msgtyp, int __msgflg));
+
+/* Send message to message queue.  */
+extern int msgsnd __P ((int __msqid, void *__msgp, size_t __msgsz,
+			int __msgflg));
+
+__END_DECLS
+
+#endif /* sys/msg.h */
diff --git a/sysvipc/sys/sem.h b/sysvipc/sys/sem.h
new file mode 100644
index 0000000000..d937e6bc5c
--- /dev/null
+++ b/sysvipc/sys/sem.h
@@ -0,0 +1,59 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+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 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_SEM_H
+#define _SYS_SEM_H
+
+#include <features.h>
+#include <sys/types.h>
+
+/* Get common definition of System V style IPC.  */
+#include <sys/ipc.h>
+
+/* Get system dependent definition of `struct semid_ds' and more.  */
+#include <sys/sem_buf.h>
+
+__BEGIN_DECLS
+
+/* The following System V style IPC functions implement a semaphore
+   handling.  The definition is found in XPG2.  */
+
+/* Structure used for argument to `semop' to describe operations.  */
+struct sembuf
+{
+  short int sem_num;		/* semaphore number */
+  short int sem_op;		/* semaphore operation */
+  short int sem_flg;		/* operation flag */
+};
+
+
+/* Semaphore control operation.  */
+extern int semctl __P ((int __semid, int __semnum, int __cmd,
+			union semun __arg));
+
+/* Get semaphore.  */
+extern int semget __P ((key_t __key, int __nsems, int __semflg));
+
+/* Operate on semaphore.  */
+extern int semop __P ((int __semid, struct sembuf *__sops,
+		       unsigned int __nsops));
+
+__END_DECLS
+
+#endif /* sys/sem.h */
diff --git a/sysvipc/sys/shm.h b/sysvipc/sys/shm.h
new file mode 100644
index 0000000000..11f9e7aa07
--- /dev/null
+++ b/sysvipc/sys/shm.h
@@ -0,0 +1,56 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+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 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_SHM_H
+#define _SYS_SHM_H
+
+#include <features.h>
+#include <unistd.h>		/* for `getpagesize' declaration */
+#include <sys/types.h>
+
+/* Get common definition of System V style IPC.  */
+#include <sys/ipc.h>
+
+/* Get system dependent definition of `struct shmid_ds' and more.  */
+#include <sys/shm_buf.h>
+
+
+/* Segment low boundary address multiple.  */
+#define SHMLBA		getpagesize ()
+
+__BEGIN_DECLS
+
+/* The following System V style IPC functions implement a shared memory
+   facility.  The definition is found in XPG2.  */
+
+/* Shared memory control operation.  */
+extern int shmctl __P ((int __shmid, int __cmd, struct shmid_ds *__buf));
+
+/* Get shared memory segment.  */
+extern int shmget __P ((key_t __key, int __size, int __shmflg));
+
+/* Attach shared memory segment.  */
+extern int shmat __P ((int __shmid, char *__shmaddr, int __shmflg));
+
+/* Detach shared memory segment.  */
+extern int shmdt __P ((char *__shmaddr));
+
+__END_DECLS
+
+#endif /* sys/shm.h */