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/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _STRING_H
#define _STRING_H
#include <sys/cdefs.h>
#include <stddef.h>
#include <xlocale.h>
#include <bits/strcasecmp.h>
__BEGIN_DECLS
#if defined(__USE_BSD)
#include <strings.h>
#endif
void* memccpy(void* __dst, const void* __src, int __stop_char, size_t __n);
void* memchr(const void* __s, int __ch, size_t __n) __attribute_pure__ __overloadable __RENAME_CLANG(memchr);
void* memrchr(const void* __s, int __ch, size_t __n) __attribute_pure__ __overloadable __RENAME_CLANG(memrchr);
int memcmp(const void* __lhs, const void* __rhs, size_t __n) __attribute_pure__;
void* memcpy(void*, const void*, size_t)
__overloadable __RENAME_CLANG(memcpy);
#if defined(__USE_GNU)
void* mempcpy(void* __dst, const void* __src, size_t __n) __INTRODUCED_IN(23);
#endif
void* memmove(void* __dst, const void* __src, size_t __n) __overloadable __RENAME_CLANG(memmove);
void* memset(void* __dst, int __ch, size_t __n) __overloadable __RENAME_CLANG(memset);
void* memmem(const void* __haystack, size_t __haystack_size, const void* __needle, size_t __needle_size) __attribute_pure__;
char* strchr(const char* __s, int __ch) __attribute_pure__ __overloadable __RENAME_CLANG(strchr);
char* __strchr_chk(const char* __s, int __ch, size_t __n) __INTRODUCED_IN(18);
#if defined(__USE_GNU)
#if defined(__cplusplus)
/* The versioner doesn't handle C++ blocks yet, so manually guarded. */
#if __ANDROID_API__ >= 24
extern "C++" char* strchrnul(char* __s, int __ch) __RENAME(strchrnul) __attribute_pure__ __INTRODUCED_IN(24);
extern "C++" const char* strchrnul(const char* __s, int __ch) __RENAME(strchrnul) __attribute_pure__ __INTRODUCED_IN(24);
#endif /* __ANDROID_API__ >= 24 */
#else
char* strchrnul(const char* __s, int __ch) __attribute_pure__ __INTRODUCED_IN(24);
#endif
#endif
char* strrchr(const char* __s, int __ch) __attribute_pure__ __overloadable __RENAME_CLANG(strrchr);
char* __strrchr_chk(const char* __s, int __ch, size_t __n) __INTRODUCED_IN(18);
size_t strlen(const char* __s) __attribute_pure__ __overloadable __RENAME_CLANG(strlen);
size_t __strlen_chk(const char* __s, size_t __n) __INTRODUCED_IN(17);
int strcmp(const char* __lhs, const char* __rhs) __attribute_pure__;
char* stpcpy(char* __dst, const char* __src) __overloadable __RENAME_CLANG(stpcpy) __INTRODUCED_IN(21);
char* strcpy(char* __dst, const char* __src) __overloadable __RENAME_CLANG(strcpy);
char* strcat(char* __dst, const char* __src) __overloadable __RENAME_CLANG(strcat);
char* strdup(const char* __s);
char* strstr(const char* __haystack, const char* __needle) __attribute_pure__;
char* strcasestr(const char* __haystack, const char* __needle) __attribute_pure__;
char* strtok(char* __s, const char* __delimiter);
char* strtok_r(char* __s, const char* __delimiter, char** __pos_ptr);
char* strerror(int __errno_value);
char* strerror_l(int __errno_value, locale_t __l) __INTRODUCED_IN(23);
#if defined(__USE_GNU) && __ANDROID_API__ >= 23
char* strerror_r(int __errno_value, char* __buf, size_t __n) __RENAME(__gnu_strerror_r) __INTRODUCED_IN(23);
#else /* POSIX */
int strerror_r(int __errno_value, char* __buf, size_t __n);
#endif
size_t strnlen(const char* __s, size_t __n) __attribute_pure__;
char* strncat(char* __dst, const char* __src, size_t __n) __overloadable __RENAME_CLANG(strncat);
char* strndup(const char* __s, size_t __n);
int strncmp(const char* __lhs, const char* __rhs, size_t __n) __attribute_pure__;
char* stpncpy(char* __dst, const char* __src, size_t __n) __overloadable __RENAME_CLANG(stpncpy) __INTRODUCED_IN(21);
char* strncpy(char* __dst, const char* __src, size_t __n) __overloadable __RENAME_CLANG(strncpy);
size_t strlcat(char* __dst, const char* __src, size_t __n) __overloadable __RENAME_CLANG(strlcat);
size_t strlcpy(char* __dst, const char* __src, size_t __n) __overloadable __RENAME_CLANG(strlcpy);
size_t strcspn(const char* __s, const char* __reject) __attribute_pure__;
char* strpbrk(const char* __s, const char* __accept) __attribute_pure__;
char* strsep(char** __s_ptr, const char* __delimiter);
size_t strspn(const char* __s, const char* __accept);
char* strsignal(int __signal);
int strcoll(const char* __lhs, const char* __rhs) __attribute_pure__;
size_t strxfrm(char* __dst, const char* __src, size_t __n);
#if __ANDROID_API__ >= __ANDROID_API_L__
int strcoll_l(const char* __lhs, const char* __rhs, locale_t __l) __attribute_pure__ __INTRODUCED_IN(21);
size_t strxfrm_l(char* __dst, const char* __src, size_t __n, locale_t __l) __INTRODUCED_IN(21);
#else
// Implemented as static inlines before 21.
#endif
#if defined(__USE_GNU) && !defined(basename)
/*
* glibc has a basename in <string.h> that's different to the POSIX one in <libgen.h>.
* It doesn't modify its argument, and in C++ it's const-correct.
*/
#if defined(__cplusplus)
/* The versioner doesn't handle C++ blocks yet, so manually guarded. */
#if __ANDROID_API__ >= 23
extern "C++" char* basename(char* __path) __RENAME(__gnu_basename) __INTRODUCED_IN(23);
extern "C++" const char* basename(const char* __path) __RENAME(__gnu_basename) __INTRODUCED_IN(23);
#endif /* __ANDROID_API__ >= 23 */
#else
char* basename(const char* __path) __RENAME(__gnu_basename) __INTRODUCED_IN(23);
#endif
#endif
#if defined(__BIONIC_INCLUDE_FORTIFY_HEADERS)
#include <bits/fortify/string.h>
#endif
/* Const-correct overloads. Placed after FORTIFY so we call those functions, if possible. */
#if defined(__cplusplus) && defined(__clang__)
/*
* Use two enable_ifs so these overloads don't conflict with + are preferred over libcxx's. This can
* be reduced to 1 after libcxx recognizes that we have const-correct overloads.
*/
#define __prefer_this_overload __enable_if(true, "preferred overload") __enable_if(true, "")
extern "C++" {
inline __always_inline
void* __bionic_memchr(const void* const s __pass_object_size, int c, size_t n) {
return memchr(s, c, n);
}
inline __always_inline
const void* memchr(const void* const s __pass_object_size, int c, size_t n)
__prefer_this_overload {
return __bionic_memchr(s, c, n);
}
inline __always_inline
void* memchr(void* const s __pass_object_size, int c, size_t n) __prefer_this_overload {
return __bionic_memchr(s, c, n);
}
inline __always_inline
char* __bionic_strchr(const char* const s __pass_object_size, int c) {
return strchr(s, c);
}
inline __always_inline
const char* strchr(const char* const s __pass_object_size, int c)
__prefer_this_overload {
return __bionic_strchr(s, c);
}
inline __always_inline
char* strchr(char* const s __pass_object_size, int c)
__prefer_this_overload {
return __bionic_strchr(s, c);
}
inline __always_inline
char* __bionic_strrchr(const char* const s __pass_object_size, int c) {
return strrchr(s, c);
}
inline __always_inline
const char* strrchr(const char* const s __pass_object_size, int c) __prefer_this_overload {
return __bionic_strrchr(s, c);
}
inline __always_inline
char* strrchr(char* const s __pass_object_size, int c) __prefer_this_overload {
return __bionic_strrchr(s, c);
}
/* Functions with no FORTIFY counterpart. */
inline __always_inline
char* __bionic_strstr(const char* h, const char* n) { return strstr(h, n); }
inline __always_inline
const char* strstr(const char* h, const char* n) __prefer_this_overload {
return __bionic_strstr(h, n);
}
inline __always_inline
char* strstr(char* h, const char* n) __prefer_this_overload {
return __bionic_strstr(h, n);
}
inline __always_inline
char* __bionic_strpbrk(const char* h, const char* n) { return strpbrk(h, n); }
inline __always_inline
char* strpbrk(char* h, const char* n) __prefer_this_overload {
return __bionic_strpbrk(h, n);
}
inline __always_inline
const char* strpbrk(const char* h, const char* n) __prefer_this_overload {
return __bionic_strpbrk(h, n);
}
}
#undef __prefer_this_overload
#endif
__END_DECLS
#endif
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