static void do_scan(void) {
int flg = 1, len; unsigned char *p;
int stateid = 0;
while(flg || bufpos < buffill) {
const short *next_tbl = statemap[stateid];
flg = refill_buf();
for(;;) {
if(next_tbl[0] < 0 || next_tbl[0] == buf[bufpos]) {
stateid = next_tbl[1]; break;
}
next_tbl += 2;
}
bufpos++;
if(stateid == STATE_FOUND_PUBKEY || stateid == STATE_FOUND_PUBKEY_2 || stateid == STATE_FOUND_PUBKEY_COMP ) {
//printf("Found potential key!\n");
refill_buf();
do_recover_pubkey();
} else if(stateid == STATE_FOUND_PUBKEY_J ) {
refill_buf();
do_recover_pubkey_j();
} else if(stateid == STATE_FOUND_PRIVKEY) {
refill_buf();
do_recover_privkey(bufpos);
}
}
}
static ssize_t perf_read(struct file *file, char __user *buf,
size_t sz, loff_t *ppos)
{
struct msm_perf_state *perf = file->private_data;
int n = 0, ret;
mutex_lock(&perf->read_lock);
if (perf->bufpos >= perf->buftot) {
ret = refill_buf(perf);
if (ret)
goto out;
}
n = min((int)sz, perf->buftot - perf->bufpos);
ret = copy_to_user(buf, &perf->buf[perf->bufpos], n);
if (ret)
goto out;
perf->bufpos += n;
*ppos += n;
out:
mutex_unlock(&perf->read_lock);
if (ret)
return ret;
return n;
}