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zerotrunc: from Plan 9

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CC=plan9port.codebot
http://codereview.appspot.com/4809089
This commit is contained in:
David du Colombier 2011-08-16 16:11:56 -04:00 • committed by Russ Cox
parent f6d2cbfe47
commit b6863de7e1
1 changed files with 26 additions and 0 deletions
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26
src/cmd/zerotrunc.c Normal file
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@ -0,0 +1,26 @@
/*
* 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);
}