kernel: user safe strlen

2026-10-29 13:48:21 +00:00 · 2022-12-13 23:41:40 -03:00
parent 9fc62579ea
commit c17a2f4c6c
5 changed files with 55 additions and 1 deletions
@@ -0,0 +1,19 @@
+#include <kernel/ustring.h>
+#include <arch/cls.h>
+
+extern void arch_u_strlen_cont();
+extern int arch_u_strlen(const char* str, size_t* len);
+
+int u_strlen(const char* str, size_t* len){
+    
+	arch_getcls()->thread->umemopfailaddr = arch_u_strlen_cont;
+
+	int ret = arch_u_strlen(str, len);
+
+	arch_getcls()->thread->umemopfailaddr = NULL;
+
+	return ret == 0 ? 0 : arch_getcls()->thread->umemoperror;
+    
+}
+
+