libbb: dump: do not use uninitialized memory. close bug 4364.

This commit is contained in:
Denis Vlasenko 2008-07-29 00:00:14 +00:00
parent 043d15da31
commit 2f86d13dff

View File

@ -376,17 +376,16 @@ static unsigned char *get(priv_dumper_t *dumper)
{
int n;
int need, nread;
unsigned char *tmpp;
int blocksize = dumper->blocksize;
if (!dumper->get__curp) {
dumper->address = (off_t)0; /*DBU:[dave@cray.com] initialize,initialize..*/
dumper->get__curp = xmalloc(blocksize);
dumper->get__savp = xmalloc(blocksize);
dumper->get__savp = xzalloc(blocksize); /* need to be initialized */
} else {
tmpp = dumper->get__curp;
unsigned char *tmp = dumper->get__curp;
dumper->get__curp = dumper->get__savp;
dumper->get__savp = tmpp;
dumper->get__savp = tmp;
dumper->savaddress += blocksize;
dumper->address = dumper->savaddress;
}