From 93256cc1acaefb4c3ae0c13c5b979b298ba66279 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper <drepper@redhat.com> Date: Thu, 1 May 1997 01:25:40 +0000 Subject: 1997-05-01 03:13 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/shmat.c (shmat): For Linux-2.0 and up the kernel can return negative values. Only fail when return value is in range in range which is never returned as valid address. Patch by Bruno Haible <haible@ilog.fr>. --- sysdeps/unix/sysv/linux/shmat.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'sysdeps/unix/sysv') diff --git a/sysdeps/unix/sysv/linux/shmat.c b/sysdeps/unix/sysv/linux/shmat.c index 2ac07f21d0..070b00c30f 100644 --- a/sysdeps/unix/sysv/linux/shmat.c +++ b/sysdeps/unix/sysv/linux/shmat.c @@ -33,5 +33,6 @@ shmat (shmid, shmaddr, shmflg) unsigned long raddr; retval = __ipc (IPCOP_shmat, shmid, shmflg, (int) &raddr, shmaddr); - return retval < 0 ? (void *) retval : (void *) raddr; + return ((unsigned long int) retval > -(unsigned long int) SHMLBA + ? (void *) retval : (void *) raddr); } -- cgit v1.2.3-70-g09d2