From 4354c9fc7af4f5de714420c8aad674744f61980d Mon Sep 17 00:00:00 2001
From: Nils Homer <nilshomer@gmail.com>
Date: Wed, 28 Oct 2015 13:51:11 -0400
Subject: [PATCH] properly read in from stdin, either by having no arguments or
 passing in "-"

---
 pbgzip.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pbgzip.c b/pbgzip.c
index 1bfccd9..68afb3e 100644
--- a/pbgzip.c
+++ b/pbgzip.c
@@ -151,7 +151,11 @@ main(int argc, char *argv[])
       }
   }
 
-  if ((f_src = open(argv[optind], O_RDONLY)) < 0) {
+  // read from stdin if no more arguments, or a "-", are/is supplied. 
+  if (optind == argc || 0 == strcmp(argv[optind], "-")) {
+	  f_src = fileno(stdin);
+  }
+  else if ((f_src = open(argv[optind], O_RDONLY)) < 0) {
       fprintf(stderr, "[pbgzip] %s: %s\n", strerror(errno), argv[optind]);
       return 1;
   }