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don't blindly set IFF_UP; or it with old flags

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cgd 1995-05-23 00:14:06 +00:00
parent 65eea9435d
commit f66bf5fd18
1 changed files with 8 additions and 2 deletions
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10
sys/nfs/nfs_boot.c
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@ -1,4 +1,4 @@
/* $NetBSD: nfs_boot.c,v 1.17 1995/05/20 01:52:52 mycroft Exp $ */
/* $NetBSD: nfs_boot.c,v 1.18 1995/05/23 00:14:06 cgd Exp $ */
/*
* Copyright (c) 1995 Adam Glass, Gordon Ross
@ -143,10 +143,16 @@ nfs_boot_init(nd, procp)
/*
* Bring up the interface.
*
* Get the old interface flags and or IFF_UP into them; if
* IFF_UP set blindly, interface selection can be clobbered.
*/
if ((error = socreate(AF_INET, &so, SOCK_DGRAM, 0)) != 0)
panic("nfs_boot: socreate, error=%d", error);
ireq.ifr_flags = IFF_UP;
error = ifioctl(so, SIOCGIFFLAGS, (caddr_t)&ireq, procp);
if (error)
panic("nfs_boot: GIFFLAGS, error=%d", error);
ireq.ifr_flags |= IFF_UP;
error = ifioctl(so, SIOCSIFFLAGS, (caddr_t)&ireq, procp);
if (error)
panic("nfs_boot: SIFFLAGS, error=%d", error);