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#include <u.h>
#include <libc.h>
void
usage(void)
{
fprint(2, "usage: %s [-q] [-t secs] goodstring [badstring ...]\n", argv0);
exits("usage");
}
void
catch(void*, char *s)
{
exits(s);
}
int
writewithoutcr(int fd, char *p, int i)
{
char *q, *e;
/* dump cr's */
for(e = p+i; p < e; ){
q = memchr(p, '\r', e-p);
if(q == nil)
break;
if(q > p)
if(write(fd, p, q-p) < 0)
return -1;
p = q+1;
}
if(p < e)
if(write(fd, p, e-p) < 0)
return -1;
return i;
}
void
main(int argc, char **argv)
{
int timeout = 5*60;
int quiet = 0;
int ignorecase = 0;
int fd, i, m, n, bsize;
char *good;
char *buf;
int sofar;
ARGBEGIN {
case 'i':
ignorecase = 1;
break;
case 't':
timeout = atoi(EARGF(usage()));
break;
case 'q':
quiet = 1;
break;
} ARGEND;
if(argc < 1)
usage();
good = argv[0];
n = strlen(good);
for(i = 1; i < argc; i++){
m = strlen(argv[i]);
if(m > n)
n = m;
}
fd = open("/dev/cons", ORDWR);
if(fd < 0)
sysfatal("opening /dev/cons: %r");
bsize = n+4096;
buf = malloc(bsize+1);
sofar = 0;
alarm(timeout*1000);
for(;;){
if(sofar > n){
memmove(buf, &buf[sofar-n], n);
sofar = n;
}
i = read(0, buf+sofar, bsize);
if(i <= 0)
exits("EOF");
if(!quiet)
writewithoutcr(fd, buf+sofar, i);
sofar += i;
buf[sofar] = 0;
if(ignorecase){
if(cistrstr(buf, good))
break;
for(i = 1; i < argc; i++)
if(cistrstr(buf, argv[i]))
exits(argv[i]);
} else {
if(strstr(buf, good))
break;
for(i = 1; i < argc; i++)
if(strstr(buf, argv[i]))
exits(argv[i]);
}
}
exits(0);
}
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