From 124cb7415a9a1a55f2dff5adc36a2e14f0392adc Mon Sep 17 00:00:00 2001 From: sin Date: Mon, 9 Feb 2015 15:03:35 +0000 Subject: [PATCH] tail: Ignore anything other than FIFOs and regular files for -f --- tail.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tail.c b/tail.c index 11af1dd..e244930 100644 --- a/tail.c +++ b/tail.c @@ -101,6 +101,8 @@ main(int argc, char *argv[]) newline ? "\n" : "", argv[0]); if (stat(argv[0], &st1) < 0) eprintf("stat %s:", argv[0]); + if (!(S_ISFIFO(st1.st_mode) || S_ISREG(st1.st_mode))) + fflag = 0; newline = 1; tail(fp, argv[0], n);