From a782882a11a6fbc4d78679b5bc8e16b69978b1b6 Mon Sep 17 00:00:00 2001
From: h2-addad <hamza2.addad@live.uwe.ac.uk>
Date: Sun, 16 Jul 2023 00:49:08 +0000
Subject: [PATCH] Update
---
src/examples/cp.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
create mode 100644 src/examples/cp.c
diff --git a/src/examples/cp.c b/src/examples/cp.c
new file mode 100644
index 0000000..6e37960
--- /dev/null
+++ b/src/examples/cp.c
@@ -0,0 +1,55 @@
+/* cat.c
+
+Copies one file to another. */
+
+#include <stdio.h>
+#include <syscall.h>
+
+int
+main (int argc, char *argv[])
+{
+ int in_fd, out_fd;
+
+ if (argc != 3)
+ {
+ printf ("usage: cp OLD NEW\n");
+ return EXIT_FAILURE;
+ }
+
+ /* Open input file. */
+ in_fd = open (argv[1]);
+ if (in_fd < 0)
+ {
+ printf ("%s: open failed\n", argv[1]);
+ return EXIT_FAILURE;
+ }
+
+ /* Create and open output file. */
+ if (!create (argv[2], filesize (in_fd)))
+ {
+ printf ("%s: create failed\n", argv[2]);
+ return EXIT_FAILURE;
+ }
+ out_fd = open (argv[2]);
+ if (out_fd < 0)
+ {
+ printf ("%s: open failed\n", argv[2]);
+ return EXIT_FAILURE;
+ }
+
+ /* Copy data. */
+ for (;;)
+ {
+ char buffer[1024];
+ int bytes_read = read (in_fd, buffer, sizeof buffer);
+ if (bytes_read == 0)
+ break;
+ if (write (out_fd, buffer, bytes_read) != bytes_read)
+ {
+ printf ("%s: write failed\n", argv[2]);
+ return EXIT_FAILURE;
+ }
+ }
+
+ return EXIT_SUCCESS;
+}
--
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