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Reviewed by: Bruce Evans <bde@freebsd.org>

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Guard against possible buffer overrun in filename passed.
Another candidate for 2.2.
This commit is contained in:
Daniel O'Callaghan 1997-02-15 07:10:26 +00:00
parent 21bef06373
commit d53ec6c0d0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=22736
1 changed files with 6 additions and 0 deletions
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6
lib/libc/db/hash/ndbm.c
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@ -47,6 +47,7 @@ static char sccsid[] = "@(#)ndbm.c 8.4 (Berkeley) 7/21/94";
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <ndbm.h>
#include "hash.h"
@ -70,6 +71,11 @@ dbm_open(file, flags, mode)
info.cachesize = 0;
info.hash = NULL;
info.lorder = 0;
if( strlen(file) >= sizeof(path) - strlen(DBM_SUFFIX)) {
errno = ENAMETOOLONG;
return(NULL);
}
(void)strcpy(path, file);
(void)strcat(path, DBM_SUFFIX);
return ((DBM *)__hash_open(path, flags, mode, &info, 0));