From b334a8494bef50c5b90adc1f101464fc8c4c971a Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Thu, 23 Jul 2026 23:55:28 +0200
Subject: kernel: port ram disk to new driver architecture

---
 libs/kstd/kstd/cstring.hpp     |  1 +
 libs/kstd/kstd/libc/string.cpp | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

(limited to 'libs/kstd')

diff --git a/libs/kstd/kstd/cstring.hpp b/libs/kstd/kstd/cstring.hpp
index bd8b28d8..9678f77f 100644
--- a/libs/kstd/kstd/cstring.hpp
+++ b/libs/kstd/kstd/cstring.hpp
@@ -12,6 +12,7 @@ namespace kstd::libc
     auto memset(void * dest, int value, std::size_t size) noexcept -> void *;
     auto memmove(void * dest, void const * src, std::size_t size) noexcept -> void *;
     auto memcmp(void const * lhs, void const * rhs, std::size_t size) noexcept -> int;
+    auto memchr(void const * buffer, int character, std::size_t size) noexcept -> void *;
 
     auto strlen(char const * string) noexcept -> std::size_t;
   }
diff --git a/libs/kstd/kstd/libc/string.cpp b/libs/kstd/kstd/libc/string.cpp
index 15ecc70f..986f63a6 100644
--- a/libs/kstd/kstd/libc/string.cpp
+++ b/libs/kstd/kstd/libc/string.cpp
@@ -1,3 +1,5 @@
+#include <kstd/string.hpp>
+
 #include <kstd/cstring.hpp>
 
 #include <algorithm>
@@ -70,6 +72,19 @@ namespace kstd::libc
     return dest;
   }
 
+  auto memchr(void const * buffer, int character, std::size_t size) noexcept -> void *
+  {
+    auto as_char_ptr = reinterpret_cast<char const *>(buffer);
+    auto found = kstd::char_traits<char>::find(as_char_ptr, size, static_cast<char>(character));
+
+    if (found == as_char_ptr + size)
+    {
+      return nullptr;
+    }
+
+    return const_cast<void *>(static_cast<void const *>(found));
+  }
+
   auto strlen(char const * string) noexcept -> std::size_t
   {
     return std::distance(string, std::ranges::find(string, nullptr, '\0'));
-- 
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