feat: stdin/stdout into process

[lunaix-os.git] / lunaix-os / kernel / demos / dir_read.c

diff --git a/lunaix-os/kernel/demos/dir_read.c b/lunaix-os/kernel/demos/dir_read.c
index 8c4a34407fc9a0efc95f4af426e4802d3f8c951f..caa88cc60be5c2b141441c6a2e4f0b937a2f0bb5 100644 (file)
--- a/lunaix-os/kernel/demos/dir_read.c
+++ b/lunaix-os/kernel/demos/dir_read.c
@@ -1,5 +1,7 @@
 #include <lunaix/dirent.h>
 #include <lunaix/fctrl.h>
+#include <lunaix/lunistd.h>
+#include <lunaix/proc.h>
 #include <lunaix/syslog.h>
 
 LOG_MODULE("RDDIR")
@@ -7,12 +9,21 @@ LOG_MODULE("RDDIR")
 void
 _readdir_main()
 {
-    int fd = open("/bus/../..", 0);
+    int fd = open("/dev/./../dev/.", 0);
     if (fd == -1) {
-        kprintf(KERROR "fail to open\n");
+        kprintf(KERROR "fail to open (%d)\n", geterrno());
         return;
     }
 
+    char path[129];
+    int len = realpathat(fd, path, 128);
+    if (len < 0) {
+        kprintf(KERROR "fail to read (%d)\n", geterrno());
+    } else {
+        path[len] = 0;
+        kprintf("%s\n", path);
+    }
+
     struct dirent ent = { .d_offset = 0 };
 
     while (!readdir(fd, &ent)) {