#ifndef _LINUX_STRING_H_
#define _LINUX_STRING_H_
-/* We don't want strings.h stuff being user by user stuff by accident */
+/* We don't want strings.h stuff being used by user stuff by accident */
-#ifdef __KERNEL__
+#ifndef __KERNEL__
+#include <string.h>
+#else
#include <linux/compiler.h> /* for inline */
#include <linux/types.h> /* for size_t */
#include <linux/stddef.h> /* for NULL */
+#include <stdarg.h>
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern char * strpbrk(const char *,const char *);
-extern char * strsep(char **,const char *);
-extern __kernel_size_t strspn(const char *,const char *);
-extern __kernel_size_t strcspn(const char *,const char *);
+extern char *strndup_user(const char __user *, long);
+extern void *memdup_user(const void __user *, size_t);
/*
* Include machine specific inline routines
#ifndef __HAVE_ARCH_STRNICMP
extern int strnicmp(const char *, const char *, __kernel_size_t);
#endif
+#ifndef __HAVE_ARCH_STRCASECMP
+extern int strcasecmp(const char *s1, const char *s2);
+#endif
+#ifndef __HAVE_ARCH_STRNCASECMP
+extern int strncasecmp(const char *s1, const char *s2, size_t n);
+#endif
#ifndef __HAVE_ARCH_STRCHR
extern char * strchr(const char *,int);
#endif
#ifndef __HAVE_ARCH_STRRCHR
extern char * strrchr(const char *,int);
#endif
+extern char * strstrip(char *);
#ifndef __HAVE_ARCH_STRSTR
extern char * strstr(const char *,const char *);
#endif
#ifndef __HAVE_ARCH_STRNLEN
extern __kernel_size_t strnlen(const char *,__kernel_size_t);
#endif
+#ifndef __HAVE_ARCH_STRPBRK
+extern char * strpbrk(const char *,const char *);
+#endif
+#ifndef __HAVE_ARCH_STRSEP
+extern char * strsep(char **,const char *);
+#endif
+#ifndef __HAVE_ARCH_STRSPN
+extern __kernel_size_t strspn(const char *,const char *);
+#endif
+#ifndef __HAVE_ARCH_STRCSPN
+extern __kernel_size_t strcspn(const char *,const char *);
+#endif
#ifndef __HAVE_ARCH_MEMSET
extern void * memset(void *,int,__kernel_size_t);
#endif
extern char *kstrdup(const char *s, gfp_t gfp);
+extern char *kstrndup(const char *s, size_t len, gfp_t gfp);
+extern void *kmemdup(const void *src, size_t len, gfp_t gfp);
-#ifdef __cplusplus
-}
+extern char **argv_split(gfp_t gfp, const char *str, int *argcp);
+extern void argv_free(char **argv);
+
+extern bool sysfs_streq(const char *s1, const char *s2);
+
+#ifdef CONFIG_BINARY_PRINTF
+int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args);
+int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf);
+int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...) __printf(3, 4);
#endif
+extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
+ const void *from, size_t available);
+
+/**
+ * strstarts - does @str start with @prefix?
+ * @str: string to examine
+ * @prefix: prefix to look for.
+ */
+static inline bool strstarts(const char *str, const char *prefix)
+{
+ return strncmp(str, prefix, strlen(prefix)) == 0;
+}
#endif
#endif /* _LINUX_STRING_H_ */