From 1f544842ceb5af73b1f2b13222d72dd4ad7cd08a Mon Sep 17 00:00:00 2001
From: kaashoek <kaashoek>
Date: Sat, 12 Aug 2006 04:33:50 +0000
Subject: fstat primitive ls

---
 ls.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 ls.c

(limited to 'ls.c')

diff --git a/ls.c b/ls.c
new file mode 100644
index 0000000..ce08840
--- /dev/null
+++ b/ls.c
@@ -0,0 +1,43 @@
+#include "types.h"
+#include "stat.h"
+#include "user.h"
+#include "fs.h"
+
+char buf[512];
+struct stat stat;
+struct dirent dirent;
+
+int
+main(int argc, char *argv[])
+{
+  int fd;
+  uint off;
+
+  if(argc > 1){
+    puts("Usage: ls\n");
+    exit();
+  }
+
+  fd = open(".", 0);
+  if(fd < 0){
+    printf(2, "ls: cannot open .\n");
+    exit();
+  }
+  if (fstat(fd, &stat) < 0) {
+    printf(2, "ls: cannot open .\n");
+    exit();
+  }
+  if (stat.st_type != T_DIR) {
+    printf(2, "ls: . is not a dir\n");
+  }
+  for(off = 0; off < stat.st_size; off += sizeof(struct dirent)) {
+    if (read(fd, &dirent, sizeof(struct dirent)) != sizeof(struct dirent)) {
+      printf(2, "ls: read error\n");
+      exit();
+    }
+    printf(1, "%s\n", dirent.name);
+  }
+  close(fd);
+
+  exit();
+}
-- 
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