实现_sys_flen()函数

2019-01-24 09:05:41 +08:00 · 2019-01-24 09:05:41 +08:00 · 11751d60e0
parent bef1d55736
commit 11751d60e0
1 changed files with 10 additions and 0 deletions
--- a/components/libc/compilers/armlibc/stubs.c
+++ b/components/libc/compilers/armlibc/stubs.c
@ -265,7 +265,17 @@ void _sys_exit(int return_code)
 */
 long _sys_flen(FILEHANDLE fh)
 {
+    struct stat stat;
+    
+    if (fh < STDERR)
+        return -1;
+
+#ifndef RT_USING_DFS
    return -1;
+#else
+    fstat(fh, &stat);
+    return stat.st_size;
+#endif
 }

 int _sys_istty(FILEHANDLE fh)