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| author | Ulrich Drepper <drepper@redhat.com> | 1997-05-21 00:05:52 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1997-05-21 00:05:52 +0000 |
| commit | caf512f51a699944ae2407325bc7ad6b7ecca11c (patch) | |
| tree | 081cd9a1b5c2c61c83e9bcd712ae2923ba34e192 /sysdeps/unix/sysv | |
| parent | f301b575428f237ba2582a6c57dddab1b2a2f501 (diff) | |
| download | glibc-caf512f51a699944ae2407325bc7ad6b7ecca11c.tar glibc-caf512f51a699944ae2407325bc7ad6b7ecca11c.tar.gz glibc-caf512f51a699944ae2407325bc7ad6b7ecca11c.tar.bz2 glibc-caf512f51a699944ae2407325bc7ad6b7ecca11c.zip | |
(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.
Diffstat (limited to 'sysdeps/unix/sysv')
| -rw-r--r-- | sysdeps/unix/sysv/linux/shmat.c | 3 |
1 files changed, 2 insertions, 1 deletions
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); } |