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authorGreg McGary <greg@mcgary.org>2000-07-27 06:25:28 +0000
committerGreg McGary <greg@mcgary.org>2000-07-27 06:25:28 +0000
commitd25c879dc55dcc6a477fdce1c75382afec7596b8 (patch)
tree623e432d69fb742e511a258889ca3f4bfaf113e0 /sysdeps/unix/sysv/linux/msgrcv.c
parent4362aba591b7f7dd67abdb37478a4dd8393b5253 (diff)
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* sysdeps/gnu/bits/msq.h: Qualify kernel's
data structure pointers as __unbounded. 
* sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise. 
* sysdeps/generic/bp-semctl.h: New file. 
* sysdeps/unix/sysv/linux/msgctl.c: Qualify kernel's data structure 
pointers as __unbounded.  Check bounds of syscall args. 
* sysdeps/unix/sysv/linux/msgrcv.c: Likewise. 
* sysdeps/unix/sysv/linux/msgsnd.c: Likewise. 
* sysdeps/unix/sysv/linux/semctl.c: Likewise. 
* sysdeps/unix/sysv/linux/semop.c: Likewise. 
* sysdeps/unix/sysv/linux/shmat.c: Likewise. 
* sysdeps/unix/sysv/linux/shmctl.c: Likewise. 
* sysdeps/unix/sysv/linux/shmdt.c: Likewise. 
* sysdeps/unix/sysv/linux/alpha/msgctl.c: Likewise. 
* sysdeps/unix/sysv/linux/alpha/semctl.c: Likewise. 
* sysdeps/unix/sysv/linux/alpha/shmctl.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/msgctl.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/semctl.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/shmctl.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc64/msgctl.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc64/semctl.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc64/shmctl.c: Likewise.
2000-07-26  Greg McGary  <greg@mcgary.org>

	* sysdeps/gnu/bits/msq.h: Qualify kernel's
	data structure pointers as __unbounded.
	* sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise.
	* sysdeps/generic/bp-semctl.h: New file.
	* sysdeps/unix/sysv/linux/msgctl.c: Qualify kernel's data structure
	pointers as __unbounded.  Check bounds of syscall args.
	* sysdeps/unix/sysv/linux/msgrcv.c: Likewise.
	* sysdeps/unix/sysv/linux/msgsnd.c: Likewise.
	* sysdeps/unix/sysv/linux/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/semop.c: Likewise.
	* sysdeps/unix/sysv/linux/shmat.c: Likewise.
	* sysdeps/unix/sysv/linux/shmctl.c: Likewise.
	* sysdeps/unix/sysv/linux/shmdt.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/msgctl.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/shmctl.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/msgctl.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/shmctl.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/msgctl.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/shmctl.c: Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/msgrcv.c')
-rw-r--r--sysdeps/unix/sysv/linux/msgrcv.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/msgrcv.c b/sysdeps/unix/sysv/linux/msgrcv.c
index d0da0d6394..0971143111 100644
--- a/sysdeps/unix/sysv/linux/msgrcv.c
+++ b/sysdeps/unix/sysv/linux/msgrcv.c
@@ -24,12 +24,13 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 
+#include <bp-checks.h>
 
 /* Kludge to work around Linux' restriction of only up to five
    arguments to a system call.  */
 struct ipc_kludge
   {
-    void *msgp;
+    void *__unbounded msgp;
     long int msgtyp;
   };
 
@@ -46,8 +47,8 @@ msgrcv (msqid, msgp, msgsz, msgtyp, msgflg)
      fives parameters to a system call.  */
   struct ipc_kludge tmp;
 
-  tmp.msgp = msgp;
+  tmp.msgp = CHECK_N (msgp, msgsz);
   tmp.msgtyp = msgtyp;
 
-  return INLINE_SYSCALL (ipc, 5, IPCOP_msgrcv, msqid, msgsz, msgflg, &tmp);
+  return INLINE_SYSCALL (ipc, 5, IPCOP_msgrcv, msqid, msgsz, msgflg, __ptrvalue (&tmp));
 }