valloc
void *valloc(size_t); /* obsoleted by malloc() */
void *ret = valloc(size);
ibuf = (unsigned char *)valloc(ibs + 10);
obuf = (unsigned char *)valloc(obs + cbs + 10);
extern void *valloc(size_t);
if ((pa = valloc(map_size)) == NULL) {
pbuf = (char *)valloc(size);