From 5dc02f757bd528e666534cd6492c7c61cdf1a6e4 Mon Sep 17 00:00:00 2001
From: sin <sin@2f30.org>
Date: Fri, 4 Jul 2014 16:45:20 +0100
Subject: [PATCH] Add support for '-' to cat

This chunk will need to be librarified at some point.
---
 cat.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/cat.c b/cat.c
index ebc624f..d22d040 100644
--- a/cat.c
+++ b/cat.c
@@ -15,6 +15,7 @@ usage(void)
 int
 main(int argc, char *argv[])
 {
+	char *p;
 	FILE *fp;
 	int i;
 
@@ -27,11 +28,14 @@ main(int argc, char *argv[])
 		concat(stdin, "<stdin>", stdout, "<stdout>");
 	} else {
 		for(i = 0; i < argc; i++) {
-			if(!(fp = fopen(argv[i], "r"))) {
+			p = argv[i];
+			if (argv[i][0] == '-')
+				p = "/dev/stdin";
+			if(!(fp = fopen(p, "r"))) {
 				weprintf("fopen %s:", argv[i]);
 				continue;
 			}
-			concat(fp, argv[i], stdout, "<stdout>");
+			concat(fp, p, stdout, "<stdout>");
 			fclose(fp);
 		}
 	}