diff options
| author | Scott Soule Cheloha <cheloha@cvs.openbsd.org> | 2023-03-04 00:00:26 +0000 |
|---|---|---|
| committer | Scott Soule Cheloha <cheloha@cvs.openbsd.org> | 2023-03-04 00:00:26 +0000 |
| commit | 0b22db2bec30f66f38d12d303c3cca6bf78d5fe9 (patch) | |
| tree | 7a4eeade74323f93f7a9103fc4a627feb0453b49 /usr.bin | |
| parent | 49f02b9cf8dba27c421a87a28ac7794263442269 (diff) | |
tee(1): explicitly check read(2) return value for 0 and -1
Diffstat (limited to 'usr.bin')
| -rw-r--r-- | usr.bin/tee/tee.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/usr.bin/tee/tee.c b/usr.bin/tee/tee.c index 0ead1771d19..e7e6fcf680f 100644 --- a/usr.bin/tee/tee.c +++ b/usr.bin/tee/tee.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tee.c,v 1.14 2021/12/13 18:33:23 cheloha Exp $ */ +/* $OpenBSD: tee.c,v 1.15 2023/03/04 00:00:25 cheloha Exp $ */ /* $NetBSD: tee.c,v 1.5 1994/12/09 01:43:39 jtc Exp $ */ /* @@ -114,7 +114,7 @@ main(int argc, char *argv[]) buf = malloc(BSIZE); if (buf == NULL) err(1, NULL); - while ((rval = read(STDIN_FILENO, buf, BSIZE)) > 0) { + while ((rval = read(STDIN_FILENO, buf, BSIZE)) != 0 && rval != -1) { SLIST_FOREACH(p, &head, next) { for (n = 0; n < rval; n += wval) { wval = write(p->fd, buf + n, rval - n); |