refactor: liteos-m vfs refactory

close #I4RV26

Change-Id: I76d5d5128d37efa5fbcde6d105c78f4d7be607de
Signed-off-by: Guangyao Ma <guangyao.ma@outlook.com>

kal/libc/newlib/porting/include/sys/socket.h

@@ -33,6 +33,7 @@
 
 #include <sys/features.h>
 #include <sys/types.h>
+#include <sys/uio.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -41,11 +42,6 @@ extern "C" {
 typedef unsigned socklen_t;
 typedef unsigned short sa_family_t;
 
-struct iovec {
-    void *iov_base;
-    size_t iov_len;
-};
-
 struct msghdr {
     void *msg_name;
     socklen_t msg_namelen;

kal/libc/newlib/porting/include/sys/uio.h

@@ -40,6 +40,11 @@ extern "C" {
 
 #define UIO_MAXIOV 1024
 
+struct iovec {
+    void *iov_base;
+    size_t iov_len;
+};
+
 ssize_t readv(int, const struct iovec *, int);
 ssize_t writev(int, const struct iovec *, int);
 

kal/libc/newlib/porting/src/fs.c

@@ -144,7 +144,12 @@ int ftruncate(int fd, off_t length)
 
 int ioctl(int fd, int req, ...)
 {
-	return -1;
+    va_list ap;
+    va_start(ap, req);
+    int ret;
+    ret = LOS_Ioctl(fd, req, ap);
+    va_end(ap);
+    return ret;
 }
 
 ssize_t pread(int fd, void *buf, size_t nbyte, off_t offset)