lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

* sysdeps/gnu/bits/msq.h: Qualify kernel's

Browse Source 
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.
This commit is contained in:
Greg McGary
2000-07-27 06:25:28 +00:00
parent 4362aba591
commit d25c879dc5
21 changed files with 250 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
sysdeps/unix/sysv/linux/shmat.c
View File

@ -23,6 +23,7 @@
#include <sysdep.h>
#include <sys/syscall.h>
#include <bp-checks.h>
/* Attach the shared memory segment associated with SHMID to the data
segment of the calling process. SHMADDR and SHMFLG determine how
@ -34,11 +35,23 @@ shmat (shmid, shmaddr, shmflg)
const void *shmaddr;
int shmflg;
{
long int retval;
unsigned long raddr;
void *__unbounded result;
void *__unbounded raddr;
retval = INLINE_SYSCALL (ipc, 5, IPCOP_shmat, shmid, shmflg,
(long int) &raddr, (void *) shmaddr);
return ((unsigned long int) retval > -(unsigned long int) SHMLBA
? (void *) retval : (void *) raddr);
#if __BOUNDED_POINTERS__
size_t length = ~0;
struct shmid_ds shmds;
/* It's unfortunate that we need to make another system call to get
the shared memory segment length... */
if (shmctl (shmid, ICP_STAT, &shmds) == 0)
length = shmds.shm_segsz;
#endif
result = (void *__unbounded) INLINE_SYSCALL (ipc, 5, IPCOP_shmat, shmid, shmflg,
__ptrvalue (&raddr),
__ptrvalue (shmaddr));
if ((unsigned long) result <= -(unsigned long) SHMLBA)
result = raddr;
return BOUNDED_N (result, length);
}