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-rw-r--r--src/examples/cat.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/src/examples/cat.c b/src/examples/cat.c
new file mode 100644
index 0000000..c8d229d
--- /dev/null
+++ b/src/examples/cat.c
@@ -0,0 +1,34 @@
+/* cat.c
+
+ Prints files specified on command line to the console. */
+
+#include <stdio.h>
+#include <syscall.h>
+
+int
+main (int argc, char *argv[])
+{
+ bool success = true;
+ int i;
+
+ for (i = 1; i < argc; i++)
+ {
+ int fd = open (argv[i]);
+ if (fd < 0)
+ {
+ printf ("%s: open failed\n", argv[i]);
+ success = false;
+ continue;
+ }
+ for (;;)
+ {
+ char buffer[1024];
+ int bytes_read = read (fd, buffer, sizeof buffer);
+ if (bytes_read == 0)
+ break;
+ write (STDOUT_FILENO, buffer, bytes_read);
+ }
+ close (fd);
+ }
+ return success ? EXIT_SUCCESS : EXIT_FAILURE;
+}