From 5a58fd166c74849bfb2cf8de982fe15a3d064852 Mon Sep 17 00:00:00 2001
From: deraadt <>
Date: Mon, 5 Aug 1996 15:58:02 +0000
Subject: truncate h_name and h_aliases[] to MAXHOSTNAMELEN

---
 src/lib/libc/net/gethostnamadr.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'src/lib')

diff --git a/src/lib/libc/net/gethostnamadr.c b/src/lib/libc/net/gethostnamadr.c
index a1fdba5f91..29705f7e9e 100644
--- a/src/lib/libc/net/gethostnamadr.c
+++ b/src/lib/libc/net/gethostnamadr.c
@@ -151,7 +151,10 @@ getanswer(answer, anslen, iquery)
 			}
 			cp += n + QFIXEDSZ;
 			host.h_name = bp;
-			n = strlen(bp) + 1;
+			n = strlen(bp);
+			if (n >= MAXHOSTNAMELEN)
+				host.h_name[MAXHOSTNAMELEN-1] = '\0';
+			n++;
 			bp += n;
 			buflen -= n;
 		} else
@@ -200,6 +203,9 @@ getanswer(answer, anslen, iquery)
 				break;
 			cp += n;
 			host.h_name = bp;
+			n = strlen(host.h_name);
+			if (n >= MAXHOSTNAMELEN)
+				host.h_name[MAXHOSTNAMELEN-1] = '\0';
 			return(&host);
 		}
 		if (iquery || type != T_A)  {
@@ -226,6 +232,8 @@ getanswer(answer, anslen, iquery)
 			host.h_addrtype = (class == C_IN) ? AF_INET : AF_UNSPEC;
 			if (!iquery) {
 				host.h_name = bp;
+				if (strlen(bp) >= MAXHOSTNAMELEN)
+					host.h_name[MAXHOSTNAMELEN-1] = '\0';
 				bp += strlen(bp) + 1;
 			}
 		}
@@ -240,6 +248,8 @@ getanswer(answer, anslen, iquery)
 			break;
 		}
 		bcopy(cp, *hap++ = bp, n);
+		if (n >= MAXHOSTNAMELEN)
+			bp[MAXHOSTNAMELEN-1] = '\0';
 		bp +=n;
 		cp += n;
 		haveanswer++;
-- 
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