[src/trunk]: src/sys/compat/netbsd32 sync a comment from sys_execve().

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f3c5fcc8b317
branches:  trunk
changeset: 503228:f3c5fcc8b317
user:      mrg <mrg%NetBSD.org@localhost>
date:      Sat Feb 03 12:46:55 2001 +0000

description:
sync a comment from sys_execve().
make netbsd32_recvfrom() work.

diffstat:

 sys/compat/netbsd32/netbsd32_netbsd.c |  16 +++++++++++-----
 1 files changed, 11 insertions(+), 5 deletions(-)

diffs (51 lines):

diff -r 5329edad7729 -r f3c5fcc8b317 sys/compat/netbsd32/netbsd32_netbsd.c
--- a/sys/compat/netbsd32/netbsd32_netbsd.c     Sat Feb 03 12:46:04 2001 +0000
+++ b/sys/compat/netbsd32/netbsd32_netbsd.c     Sat Feb 03 12:46:55 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: netbsd32_netbsd.c,v 1.50 2001/02/02 13:05:18 mrg Exp $ */
+/*     $NetBSD: netbsd32_netbsd.c,v 1.51 2001/02/03 12:46:55 mrg Exp $ */
 
 /*
  * Copyright (c) 1998 Matthew R. Green
@@ -129,6 +129,7 @@
 static __inline void netbsd32_from_semid_ds __P((struct  semid_ds *, struct  netbsd32_semid_ds *));
 
 
+/* note that the netbsd32_msghdr's iov really points to a struct iovec, not a netbsd32_iovec. */
 static int recvit32 __P((struct proc *, int, struct netbsd32_msghdr *, struct iovec *, caddr_t, 
                         register_t *));
 static int dofilereadv32 __P((struct proc *, int, struct file *, struct netbsd32_iovec *, 
@@ -1186,7 +1187,7 @@
        /* getsock() will use the descriptor for us */
        if ((error = getsock(p->p_fd, s, &fp)) != 0)
                return (error);
-       auio.uio_iov = (struct iovec *)(u_long)mp->msg_iov;
+       auio.uio_iov = iov;
        auio.uio_iovcnt = mp->msg_iovlen;
        auio.uio_segflg = UIO_USERSPACE;
        auio.uio_rw = UIO_READ;
@@ -1401,7 +1402,7 @@
        } else
                msg.msg_namelen = 0;
        msg.msg_name = SCARG(uap, from);
-       msg.msg_iov = NULL; /* We can't store a real pointer here */
+       msg.msg_iov = NULL; /* ignored in recvit32(), uses iov */
        msg.msg_iovlen = 1;
        aiov.iov_base = (caddr_t)(u_long)SCARG(uap, buf);
        aiov.iov_len = (u_long)SCARG(uap, len);
@@ -1872,8 +1873,13 @@
        int szsigcode;
        struct exec_vmcmd *base_vcp = NULL;
 
-       /* init the namei data to point the file user's program name */
-       /* XXX cgd 960926: why do this here?  most will be clobbered. */
+       /*
+        * Init the namei data to point the file user's program name.
+        * This is done here rather than in check_exec(), so that it's
+        * possible to override this settings if any of makecmd/probe
+        * functions call check_exec() recursively - for example,
+        * see exec_script_makecmds().
+        */
        NDINIT(&nid, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 
        /*