--- /dev/null
+#ifndef _LINUX_STRING_H_
+#define _LINUX_STRING_H_
+
+#include "types.h"
+#include "stddef.h"
+
+extern char * ___strtok;
+extern char * strcpy(char *,const char *);
+extern char * strncpy(char *,const char *, size_t);
+extern char * strcat(char *, const char *);
+extern char * strncat(char *, const char *, size_t);
+extern char * strchr(const char *,int);
+extern char * strrchr(const char *,int);
+extern char * strpbrk(const char *,const char *);
+extern char * strtok(char *,const char *);
+extern char * strstr(const char *,const char *);
+extern size_t strlen(const char *);
+extern size_t strspn(const char *,const char *);
+extern int strcmp(const char *,const char *);
+extern int strncmp(const char *,const char *,size_t);
+extern int strnicmp(const char *, const char *, size_t);
+extern void *strdup(char *str);
+
+extern void * memset(void *,int,size_t);
+extern void * memcpy(void *,const void *,size_t);
+extern void * memmove(void *,const void *,size_t);
+extern void * memscan(void *,int,size_t);
+extern int memcmp(const void *,const void *,size_t);
+
+static inline size_t strnlen(const char *s,size_t max)
+{
+ size_t sz = strlen(s);
+ return sz > max ? max : sz;
+}
+#endif /* _LINUX_STRING_H_ */