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Diffstat (limited to 'nis/nss_nis/nis-network.c')
-rw-r--r--nis/nss_nis/nis-network.c25
1 files changed, 22 insertions, 3 deletions
diff --git a/nis/nss_nis/nis-network.c b/nis/nss_nis/nis-network.c
index 93cff5ce93..802c03229e 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 <kukuk@vt.uni-paderborn.de>, 1996.
@@ -179,8 +179,27 @@ _nss_nis_getnetbyname_r (const char *name, struct netent *net, char *buffer,
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;
+ *errnop = 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)
{