From 8d56d5b7ea2da3f9d1c6ba42a012269ebaae556f Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Mon, 2 Mar 1998 13:37:47 +0000 Subject: [PATCH] (_nss_nis_getnetbyname_r): Convert name to lowercase, add test for big enough buffer. --- nis/nss_nis/nis-network.c | 24 +++++++++++++++++++++--- 1 file changed, 21 insertions(+), 3 deletions(-) diff --git a/nis/nss_nis/nis-network.c b/nis/nss_nis/nis-network.c index 9d526666f3d..ae6945e50d2 100644 --- a/nis/nss_nis/nis-network.c +++ b/nis/nss_nis/nis-network.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1996, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk , 1996. @@ -177,8 +177,26 @@ _nss_nis_getnetbyname_r (const char *name, struct netent *net, if (yp_get_default_domain (&domain)) return NSS_STATUS_UNAVAIL; - retval = yperr2nss (yp_match (domain, "networks.byname", name, - strlen (name), &result, &len)); + if (buflen < sizeof *data + 1) + { + *herrnop = NETDB_INTERNAL; + __set_errno(ERANGE); + return NSS_STATUS_TRYAGAIN; + } + else + { + /* Convert name to lowercase. */ + size_t namlen = strlen (name); + char name2[namlen + 1]; + int i; + + for (i = 0; i < namlen; ++i) + name2[i] = tolower (name[i]); + name2[i] = '\0'; + + retval = yperr2nss (yp_match (domain, "networks.byname", name2, + namlen, &result, &len)); + } if (retval != NSS_STATUS_SUCCESS) { -- 2.47.2