feat: brk and sbrk (mmap based)

[lunaix-os.git] / lunaix-os / usr / libc / readdir.c

diff --git a/lunaix-os/usr/libc/readdir.c b/lunaix-os/usr/libc/readdir.c
index 9d2b23ed3b80ef45859155a496fa2ef2328eaa50..f8285b88d2293ab5b70fa392ed13101c3f23a58d 100644 (file)
--- a/lunaix-os/usr/libc/readdir.c
+++ b/lunaix-os/usr/libc/readdir.c
@@ -2,6 +2,7 @@
 #include <fcntl.h>
 #include <string.h>
 #include <sys/lxdirent.h>
+#include <unistd.h>
 
 DIR*
 opendir(const char* dir)
@@ -12,10 +13,28 @@ opendir(const char* dir)
         return NULL;
     }
 
-    _dir = (DIR){ .dirfd = fd, .prev_res = 0 };
+    _dir = (DIR){ .dirfd = fd };
     return &_dir;
 }
 
+int
+closedir(DIR* dirp)
+{
+    if (!dirp || dirp->dirfd == -1) {
+        // TODO migrate the status.h
+        return -1;
+    }
+
+    int err = close(dirp->dirfd);
+
+    if (!err) {
+        dirp->dirfd = -1;
+        return 0;
+    }
+
+    return -1;
+}
+
 struct dirent*
 readdir(DIR* dir)
 {
@@ -24,18 +43,16 @@ readdir(DIR* dir)
         return NULL;
     }
 
-    struct lx_dirent _lxd;
-    int more = sys_readdir(dir->dirfd, &_lxd);
+    struct lx_dirent* _lxd = &dir->_lxd;
+
+    int more = sys_readdir(dir->dirfd, _lxd);
 
-    _dirent.d_type = _lxd.d_type;
-    strncpy(_dirent.d_name, _lxd.d_name, 256);
+    _dirent.d_type = _lxd->d_type;
+    strncpy(_dirent.d_name, _lxd->d_name, 256);
 
-    if (more || dir->prev_res) {
-        dir->prev_res = more;
+    if (more) {
         return &_dirent;
     }
 
-    if (!dir->prev_res) {
-        return NULL;
-    }
+    return NULL;
 }
\ No newline at end of file