Change the return type of msgrcv() to ssize_t as required by POSIX.

It looks like the msgrcv() system call is already written in such a way
that the size is internally computed as a size_t and written into all of
td_retval[0]. This means that it is effectively already returning
ssize_t. It's just that the userspace prototype doesn't match up.

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/kern/syscalls.master b/sys/kern/syscalls.master
index c9df7788e439..0c462feae623 100644
--- a/sys/kern/syscalls.master
+++ b/sys/kern/syscalls.master
@@ -428,7 +428,7 @@
 225	AUE_MSGGET	NOSTD	{ int msgget(key_t key, int msgflg); }
 226	AUE_MSGSND	NOSTD	{ int msgsnd(int msqid, const void *msgp, \
 				    size_t msgsz, int msgflg); }
-227	AUE_MSGRCV	NOSTD	{ int msgrcv(int msqid, void *msgp, \
+227	AUE_MSGRCV	NOSTD	{ ssize_t msgrcv(int msqid, void *msgp, \
 				    size_t msgsz, long msgtyp, int msgflg); }
 228	AUE_SHMAT	NOSTD	{ int shmat(int shmid, const void *shmaddr, \
 				    int shmflg); }