From 766ba5cc06b45439cd3987aa782147041dab65c4 Mon Sep 17 00:00:00 2001
From: rsc <rsc>
Date: Fri, 24 Aug 2007 21:00:02 +0000
Subject: first ever correct use of strncpy

---
 fs.c | 24 ++----------------------
 1 file changed, 2 insertions(+), 22 deletions(-)

(limited to 'fs.c')

diff --git a/fs.c b/fs.c
index bc3cccd..eef20e8 100644
--- a/fs.c
+++ b/fs.c
@@ -455,15 +455,7 @@ writei(struct inode *ip, char *src, uint off, uint n)
 int
 namecmp(const char *s, const char *t)
 {
-  int i;
-  
-  for(i=0; i<DIRSIZ; i++){
-    if(s[i] != t[i])
-      return s[i] - t[i];
-    if(s[i] == 0)
-      break;
-  }
-  return 0;
+  return strncmp(s, t, DIRSIZ);
 }
 
 // Look for a directory entry in a directory.
@@ -500,18 +492,6 @@ dirlookup(struct inode *dp, char *name, uint *poff)
   return 0;
 }
 
-// Copy one name to another.
-static void
-namecpy(char *s, const char *t)
-{
-  int i;
-  
-  for(i=0; i<DIRSIZ && t[i]; i++)
-    s[i] = t[i];
-  for(; i<DIRSIZ; i++)
-    s[i] = 0;
-}
-
 // Write a new directory entry (name, ino) into the directory dp.
 int
 dirlink(struct inode *dp, char *name, uint ino)
@@ -534,7 +514,7 @@ dirlink(struct inode *dp, char *name, uint ino)
       break;
   }
 
-  namecpy(de.name, name);
+  strncpy(de.name, name, DIRSIZ);
   de.inum = ino;
   if(writei(dp, (char*)&de, off, sizeof(de)) != sizeof(de))
     panic("dirwrite");
-- 
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