kernel: Handle unicode in os:cmd

Allow unicode strings in os:cmd and try to convert the
result bytes to unicode list.

Also test it.

1 files changed, 28 insertions, 0 deletions

diff --git a/lib/kernel/test/os_SUITE_data/my_echo.c b/lib/kernel/test/os_SUITE_data/my_echo.c
index 2127511dd1..712c828bb5 100644
--- a/lib/kernel/test/os_SUITE_data/my_echo.c
+++ b/lib/kernel/test/os_SUITE_data/my_echo.c
@@ -1,3 +1,30 @@
+#ifdef __WIN32__
+#include <windows.h>
+
+int wmain(int argc, wchar_t **argv)
+{
+    char* sep = "";
+    int len;
+
+    /*
+     * Echo all arguments separated with '::', so that we can check that
+     * quotes are interpreted correctly.
+     */
+
+    while (argc-- > 1) {
+	char *utf8;
+	len = WideCharToMultiByte(CP_UTF8, 0, argv[1], -1, NULL, 0, NULL, NULL);
+	utf8 = malloc(len*sizeof(char));
+	WideCharToMultiByte(CP_UTF8, 0, argv++[1], -1, utf8, len, NULL, NULL);
+	printf("%s%s", sep, utf8);
+	free(utf8);
+	sep = "::";
+    }
+    putchar('\n');
+    return 0;
+}
+#else
+
 #include <stdio.h>
 
 int
@@ -17,3 +44,4 @@ main(int argc, char** argv)
     putchar('\n');
     return 0;
 }
+#endif