1 files changed, 30 insertions, 0 deletions
diff --git a/410user/progs/cat.c b/410user/progs/cat.c
new file mode 100644
index 0000000..9d2ef97
--- /dev/null
+++ b/410user/progs/cat.c
@@ -0,0 +1,30 @@
+// Simple program to print out files.
+// Michael J. Sullivan, Spring 2013
+
+#include <syscall.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define BUFSIZE 87 // "four score and seven"
+
+int main(int argc, char **argv)
+{
+	char buf[BUFSIZE];
+	int i;
+	for (i = 1; i < argc; i++) {
+		char *file = argv[i];
+		int offset = 0;
+		int amt_read;
+		while ((amt_read = readfile(file, buf, BUFSIZE, offset)) > 0) {
+			print(amt_read, buf);
+			offset += amt_read;
+		}
+		if (amt_read < 0) {
+			printf("error reading from file %s at offset %d\n",
+			       file, offset);
+			return -1;
+		}
+	}
+
+	return 0;
+}