3 files changed, 27 insertions, 0 deletions
diff --git a/src/libc/include/stddef.h b/src/libc/include/stddef.h
new file mode 100644
index 0000000..123e46f
--- /dev/null
+++ b/src/libc/include/stddef.h
@@ -0,0 +1,8 @@
+#ifndef _STDDEF_H
+#define _STDDEF_H
+
+#define NULL ((void *)0)
+
+typedef unsigned long size_t;
+
+#endif
diff --git a/src/libc/include/stdlib.h b/src/libc/include/stdlib.h
new file mode 100644
index 0000000..79d3122
--- /dev/null
+++ b/src/libc/include/stdlib.h
@@ -0,0 +1,7 @@
+#ifndef _STDLIB_H
+#define _STDLIB_H
+
+#define EXIT_SUCCESS 0
+#define EXIT_FAILURE 1
+
+#endif
diff --git a/src/libc/include/string.h b/src/libc/include/string.h
new file mode 100644
index 0000000..7efda4e
--- /dev/null
+++ b/src/libc/include/string.h
@@ -0,0 +1,12 @@
+#ifndef _STRING_H
+#define _STRING_H
+
+#include <stddef.h>
+
+int memcmp(const void *__s1, const void *__s2, size_t __n);
+void *memcpy(void *__dst, const void *__src, size_t __n);
+void *memset(void *__dst, int __c, size_t __n);
+char *strchr(const char *__s, int __n);
+size_t strlen(const char *__s);
+
+#endif