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/*
* Wait for specified input from device.
* $Id$
* Copyright (c) 1997 by Tycho Softworks.
* For conditions on redistribution and reuse see product license.
*/
#include <dev/tty.h>
#include <std/string.h>
int waitfor(int fd, uchar *list, size_t len, int timeout, ulong max)
{
int key;
int idx = 0;
uchar *mem = (uchar *)malloc(len);
while(max--)
{
key = inkey(fd, timeout);
if(key < 0)
return key;
if(idx < len)
mem[idx++] = (uchar)(key & 0xff);
else
{
for(idx = 0; idx < len; ++idx)
mem[idx] = mem[idx + 1];
mem[len - 1] = (uchar)(key & 0xff);
}
if(!memcmp(mem, list, len))
return 0;
}
return -1;
}
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