struct ipc_perm, as used by shmctl() when soing shared memory stuff,

was incorrect in uClibc, and was 2 bytes too short.  This caused uClibc
shared memory stuff to not behave correctly since struct ipc_perm was
included as the first member of, i.e. struct msqid_ds, so the content
of that struct were all shifted by two bytes.  ugh.  Apparently, few
people have used shared memory, msgctl(), etc with uClibc thus far,
 -Erik

diff --git a/libc/sysdeps/linux/common/bits/ipc.h b/libc/sysdeps/linux/common/bits/ipc.h
index 97f9b58..7103365 100644 (file)
--- a/libc/sysdeps/linux/common/bits/ipc.h
+++ b/libc/sysdeps/linux/common/bits/ipc.h
@@ -51,6 +51,6 @@ struct ipc_perm
     __kernel_uid_t     cuid;
     __kernel_gid_t     cgid;
     __kernel_mode_t    mode; 
-    unsigned short     __seq;
+    unsigned long      seq;
 };