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check return value of snprintf

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@14855 ec53bebd-3082-4978-b11e-865c3cabbd6b
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Love Hörnquist Åstrand
2005-04-19 18:52:51 +00:00
parent 89b5bba2fe
commit e441948975
1 changed files with 3 additions and 3 deletions
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6
lib/krb5/get_host_realm.c
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@@ -1,5 +1,5 @@
/* /*
* Copyright (c) 1997 - 2001 Kungliga Tekniska H<>gskolan * Copyright (c) 1997 - 2005 Kungliga Tekniska H<>gskolan
* (Royal Institute of Technology, Stockholm, Sweden). * (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved. * All rights reserved.
* *
@@ -107,8 +107,8 @@ dns_find_realm(krb5_context context,
if(*domain == '.') if(*domain == '.')
domain++; domain++;
for (i = 0; labels[i] != NULL; i++) { for (i = 0; labels[i] != NULL; i++) {
if(snprintf(dom, sizeof(dom), "%s.%s.", labels[i], domain) >= ret = snprintf(dom, sizeof(dom), "%s.%s.", labels[i], domain);
sizeof(dom)) if(ret < 0 || ret >= sizeof(dom))
return -1; return -1;
r = dns_lookup(dom, "TXT"); r = dns_lookup(dom, "TXT");
if(r != NULL) { if(r != NULL) {