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Code Issues Releases Wiki Activity

compress_find() could return a pointer to stack memory.

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This commit is contained in:
Mark Andrews
1999-05-26 00:34:54 +00:00
parent 03b062e71a
commit d5850aa99c
1 changed files with 8 additions and 3 deletions
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11
lib/dns/compress.c
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@@ -15,7 +15,7 @@
* SOFTWARE.
*/
/* $Id: compress.c,v 1.16 1999/05/10 00:38:52 marka Exp $ */
/* $Id: compress.c,v 1.17 1999/05/26 00:34:54 marka Exp $ */
#include <config.h>
#include <string.h>
@@ -547,7 +547,10 @@ compress_find(dns_rbt_t *root, dns_name_t *name, dns_name_t *prefix,
prefix->labels = 0;
} else
dns_name_getlabelsequence(name, 0, prefixlen, prefix);
dns_name_getlabelsequence(foundname, 0, foundlabels, suffix);
result = dns_name_concatenate(NULL, foundname, suffix,
workspace);
if (result != DNS_R_SUCCESS)
return (ISC_FALSE);
*offset = *data;
return (ISC_TRUE);
}
@@ -557,7 +560,9 @@ compress_find(dns_rbt_t *root, dns_name_t *name, dns_name_t *prefix,
* a suffix after it (if only the root).
*/
INSIST(result == DNS_R_PARTIALMATCH);
dns_name_getlabelsequence(foundname, 0, foundlabels, suffix);
result = dns_name_concatenate(NULL, foundname, suffix, workspace);
if (result != DNS_R_SUCCESS)
return (ISC_FALSE);
prefixlen = namelabels - foundlabels;
dns_name_init(&tmpprefix, NULL);
dns_name_init(&tmpsuffix, NULL);