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authorTrevor Johnson <trevor@FreeBSD.org>2002-07-10 06:57:44 +0000
committerTrevor Johnson <trevor@FreeBSD.org>2002-07-10 06:57:44 +0000
commit7f484866a20db7df608d7cfa9ab8e8bc089a5de8 (patch)
tree2858702d2f7d2e723a783d00f63ac2a2cae6f41a /lib/libc/net/gethostbydns.c
parent2a86dbea9c07a9c9b263025146cf294248a2a21a (diff)
downloadsrc-7f484866a20db7df608d7cfa9ab8e8bc089a5de8.tar.gz
src-7f484866a20db7df608d7cfa9ab8e8bc089a5de8.zip
MFC: fix buffer overflows described in FreeBSD-SA-02:28.resolv.
Reviewed by: imp
Notes
Notes: svn path=/releng/4.3/; revision=99716
Diffstat (limited to 'lib/libc/net/gethostbydns.c')
-rw-r--r--lib/libc/net/gethostbydns.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/libc/net/gethostbydns.c b/lib/libc/net/gethostbydns.c
index a5a3e7bb30fe..52ac91a041be 100644
--- a/lib/libc/net/gethostbydns.c
+++ b/lib/libc/net/gethostbydns.c
@@ -389,6 +389,7 @@ gethostanswer(answer, anslen, qname, qtype)
buflen -= nn;
}
+ buflen -= sizeof(align) - ((u_long)bp % sizeof(align));
bp += sizeof(align) - ((u_long)bp % sizeof(align));
if (bp + n >= &hostbuf[sizeof hostbuf]) {