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-rw-r--r--include/sys/msg.h75
-rw-r--r--include/sys/types.h2
-rw-r--r--libc/misc/sysvipc/Makefile9
-rw-r--r--libc/misc/sysvipc/msgq.c52
4 files changed, 137 insertions, 1 deletions
diff --git a/include/sys/msg.h b/include/sys/msg.h
new file mode 100644
index 000000000..cba58b364
--- /dev/null
+++ b/include/sys/msg.h
@@ -0,0 +1,75 @@
+/* Copyright (C) 1995, 1996, 1997, 1999, 2000 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _SYS_MSG_H
+#define _SYS_MSG_H
+
+#include <features.h>
+
+/* Get common definition of System V style IPC. */
+#include <sys/ipc.h>
+
+/* Get system dependent definition of `struct msqid_ds' and more. */
+#include <bits/msq.h>
+
+/* Define types required by the standard. */
+#define __need_time_t
+#include <time.h>
+
+#ifndef __pid_t_defined
+typedef __pid_t pid_t;
+# define __pid_t_defined
+#endif
+
+#ifndef __ssize_t_defined
+typedef __ssize_t ssize_t;
+# define __ssize_t_defined
+#endif
+
+/* The following System V style IPC functions implement a message queue
+ system. The definition is found in XPG2. */
+
+#ifdef __USE_GNU
+/* Template for struct to be used as argument for `msgsnd' and `msgrcv'. */
+struct msgbuf
+ {
+ long int mtype; /* type of received/sent message */
+ char mtext[1]; /* text of the message */
+ };
+#endif
+
+
+__BEGIN_DECLS
+
+/* Message queue control operation. */
+extern int msgctl (int __msqid, int __cmd, struct msqid_ds *__buf);
+
+/* Get messages queue. */
+extern int msgget (key_t __key, int __msgflg);
+
+/* Receive message from message queue. */
+extern int msgrcv (int __msqid, void *__msgp, size_t __msgsz,
+ long int __msgtyp, int __msgflg);
+
+/* Send message to message queue. */
+extern int msgsnd (int __msqid, __const void *__msgp, size_t __msgsz,
+ int __msgflg);
+
+__END_DECLS
+
+#endif /* sys/msg.h */
diff --git a/include/sys/types.h b/include/sys/types.h
index 6154b7bd2..c746ad6c6 100644
--- a/include/sys/types.h
+++ b/include/sys/types.h
@@ -95,6 +95,7 @@ typedef __off64_t off64_t;
#ifndef pid_t
typedef __pid_t pid_t;
# define pid_t pid_t
+# define __pid_t_defined
#endif
#if defined __USE_SVID || defined __USE_XOPEN
@@ -105,6 +106,7 @@ typedef __id_t id_t;
#ifndef ssize_t
typedef __ssize_t ssize_t;
# define ssize_t ssize_t
+# define __ssize_t_defined
#endif
#ifdef __USE_BSD
diff --git a/libc/misc/sysvipc/Makefile b/libc/misc/sysvipc/Makefile
index d94531788..8280137ca 100644
--- a/libc/misc/sysvipc/Makefile
+++ b/libc/misc/sysvipc/Makefile
@@ -31,10 +31,13 @@ MOBJ=semget.o semctl.o semop.o
MSRC2=shm.c
MOBJ2=shmat.o shmctl.o shmdt.o shmget.o
+MSRC3=msgq.c
+MOBJ3=msgctl.o msgget.o msgrcv.o msgsnd.o
+
CSRC = ftok.c
COBJS=$(patsubst %.c,%.o, $(CSRC))
-OBJS=$(MOBJ) $(MOBJ2) $(COBJS)
+OBJS=$(MOBJ) $(MOBJ2) $(MOBJ3) $(COBJS)
all: $(OBJS) $(LIBC)
@@ -52,6 +55,10 @@ $(MOBJ2): $(MSRC2)
$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
$(STRIPTOOL) -x -R .note -R .comment $*.o
+$(MOBJ3): $(MSRC3)
+ $(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
+ $(STRIPTOOL) -x -R .note -R .comment $*.o
+
$(COBJS): %.o : %.c
$(CC) $(CFLAGS) -c $< -o $@
$(STRIPTOOL) -x -R .note -R .comment $*.o
diff --git a/libc/misc/sysvipc/msgq.c b/libc/misc/sysvipc/msgq.c
new file mode 100644
index 000000000..f373c1611
--- /dev/null
+++ b/libc/misc/sysvipc/msgq.c
@@ -0,0 +1,52 @@
+#include <errno.h>
+#include <sys/msg.h>
+#include "ipc.h"
+
+
+#ifdef L_msgctl
+/* Message queue control operation. */
+int msgctl (int msqid, int cmd, struct msqid_ds *buf)
+{
+ return __ipc(IPCOP_msgctl ,msqid ,cmd ,0 ,buf);
+}
+#endif
+
+
+#ifdef L_msgget
+/* Get messages queue. */
+int msgget (key_t key, int msgflg)
+{
+ return __ipc(IPCOP_msgget ,key ,msgflg ,0 ,0);
+}
+#endif
+
+
+struct new_msg_buf{
+ struct msgbuf * oldmsg;
+ long int r_msgtyp; /* the fifth arg of __ipc */
+};
+/* Receive message from message queue. */
+
+
+#ifdef L_msgrcv
+int msgrcv (int msqid, void *msgp, size_t msgsz,
+ long int msgtyp, int msgflg)
+{
+ struct new_msg_buf temp;
+
+ temp.r_msgtyp = msgtyp;
+ temp.oldmsg = msgp;
+ return __ipc(IPCOP_msgrcv ,msqid ,msgsz ,msgflg ,&temp);
+}
+#endif
+
+
+
+#ifdef L_msgsnd
+/* Send message to message queue. */
+int msgsnd (int msqid, const void *msgp, size_t msgsz, int msgflg)
+{
+ return __ipc(IPCOP_msgsnd, msqid, msgsz, msgflg, (void *)msgp);
+}
+#endif
+