From 507028de9df94a1e93cdfcd3d1c19fc184d91f06 Mon Sep 17 00:00:00 2001 From: Robert Morris Date: Thu, 7 Nov 2019 09:46:20 -0500 Subject: more grind --- user/cat.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'user/cat.c') diff --git a/user/cat.c b/user/cat.c index 36939d8..598f005 100644 --- a/user/cat.c +++ b/user/cat.c @@ -11,12 +11,12 @@ cat(int fd) while((n = read(fd, buf, sizeof(buf))) > 0) { if (write(1, buf, n) != n) { - printf("cat: write error\n"); + fprintf(2, "cat: write error\n"); exit(1); } } if(n < 0){ - printf("cat: read error\n"); + fprintf(2, "cat: read error\n"); exit(1); } } @@ -28,12 +28,12 @@ main(int argc, char *argv[]) if(argc <= 1){ cat(0); - exit(1); + exit(0); } for(i = 1; i < argc; i++){ if((fd = open(argv[i], 0)) < 0){ - printf("cat: cannot open %s\n", argv[i]); + fprintf(2, "cat: cannot open %s\n", argv[i]); exit(1); } cat(fd); -- cgit v1.2.3