plan9port/src/cmd/zerotrunc.c
David du Colombier b6863de7e1 zerotrunc: from Plan 9
R=rsc
CC=plan9port.codebot
http://codereview.appspot.com/4809089
2011-08-16 16:11:56 -04:00

26 lines
318 B
C

/*
* cat standard input until you get a zero byte
*/
#include <u.h>
#include <libc.h>
void
main(void)
{
char buf[4096];
char *p;
int n;
while((n = read(0, buf, sizeof(buf))) > 0){
p = memchr(buf, 0, n);
if(p != nil)
n = p-buf;
if(n > 0)
write(1, buf, n);
if(p != nil)
break;
}
exits(0);
}