2016-11-25 17:18:40 +01:00
|
|
|
/*
|
|
|
|
* This file is part of the UCB release of Plan 9. It is subject to the license
|
|
|
|
* terms in the LICENSE file found in the top-level directory of this
|
|
|
|
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
|
|
|
|
* part of the UCB release of Plan 9, including this file, may be copied,
|
|
|
|
* modified, propagated, or distributed except according to the terms contained
|
|
|
|
* in the LICENSE file.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* tee-- pipe fitting
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <u.h>
|
|
|
|
#include <libc.h>
|
|
|
|
|
|
|
|
int uflag;
|
|
|
|
int aflag;
|
|
|
|
int *openf;
|
|
|
|
|
|
|
|
char in[8192];
|
|
|
|
|
|
|
|
int intignore(void *c, char*);
|
|
|
|
|
|
|
|
void
|
|
|
|
main(int argc, char **argv)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int r, n;
|
|
|
|
|
|
|
|
ARGBEGIN {
|
|
|
|
case 'a':
|
|
|
|
aflag++;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'i':
|
|
|
|
atnotify(intignore, 1);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'u':
|
|
|
|
uflag++;
|
|
|
|
/* uflag is ignored and undocumented; it's a relic from Unix */
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
fprint(2, "usage: tee [-ai] [file ...]\n");
|
|
|
|
exits("usage");
|
|
|
|
} ARGEND
|
|
|
|
|
|
|
|
openf = malloc((1+argc)*sizeof(int));
|
|
|
|
if(openf == nil)
|
|
|
|
sysfatal("out of memory: %r");
|
|
|
|
|
|
|
|
n = 0;
|
|
|
|
while(*argv) {
|
|
|
|
if(aflag) {
|
|
|
|
openf[n] = open(argv[0], OWRITE);
|
|
|
|
if(openf[n] < 0)
|
2016-12-24 21:25:20 +01:00
|
|
|
openf[n] = ocreate(argv[0], OWRITE, 0666);
|
2016-11-25 17:18:40 +01:00
|
|
|
seek(openf[n], 0L, 2);
|
|
|
|
} else
|
2016-12-24 21:25:20 +01:00
|
|
|
openf[n] = ocreate(argv[0], OWRITE, 0666);
|
2016-11-25 17:18:40 +01:00
|
|
|
if(openf[n] < 0) {
|
|
|
|
fprint(2, "tee: cannot open %s: %r\n", argv[0]);
|
|
|
|
} else
|
|
|
|
n++;
|
|
|
|
argv++;
|
|
|
|
}
|
|
|
|
openf[n++] = 1;
|
|
|
|
|
|
|
|
for(;;) {
|
|
|
|
r = read(0, in, sizeof in);
|
|
|
|
if(r <= 0)
|
|
|
|
exits(nil);
|
|
|
|
for(i=0; i<n; i++)
|
|
|
|
write(openf[i], in, r);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
intignore(void *a, char *msg)
|
|
|
|
{
|
|
|
|
USED(a);
|
|
|
|
if(strcmp(msg, "interrupt") == 0)
|
|
|
|
return 1;
|
|
|
|
return 0;
|
|
|
|
}
|