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| author | Ulrich Drepper <drepper@redhat.com> | 1997-05-01 01:25:40 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1997-05-01 01:25:40 +0000 |
| commit | 93256cc1acaefb4c3ae0c13c5b979b298ba66279 (patch) | |
| tree | 4d7abffa8bb98407bd0da791bea478c85982621e /sysdeps/unix/sysv | |
| parent | 779ae82ecdf88b7ed7c1f00d3ed3a639671c3c8d (diff) | |
| download | glibc-93256cc1acaefb4c3ae0c13c5b979b298ba66279.tar.gz glibc-93256cc1acaefb4c3ae0c13c5b979b298ba66279.tar.xz glibc-93256cc1acaefb4c3ae0c13c5b979b298ba66279.zip | |
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>.
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); } |