import t, c
from openssl.types import *

# ============================================================
# openssl/crypto.vp — OpenSSL 全局初始化 / 版本 / 内存工具
# 对应头文件: crypto.h / opensslv.h
# ============================================================

# ---- 版本查询类型（OpenSSL_version(type) 的 type 取值）----
OpenSslVersion: t.CDefine = 0            # OPENSSL_VERSION 完整版本文本
OpenSslBuiltOn: t.CDefine = 2            # OPENSSL_BUILT_ON 编译时间
OpenSslPlatform: t.CDefine = 3           # OPENSSL_PLATFORM 平台
OpenSslDir: t.CDefine = 4                # OPENSSL_DIR
OpenSslEnginesDir: t.CDefine = 5         # OPENSSL_ENGINES_DIR
OpenSslVersionString: t.CDefine = 6      # OPENSSL_VERSION_STRING "3.x.y"
OpenSslModulesDir: t.CDefine = 8         # OPENSSL_MODULES_DIR
OpenSslCpuInfo: t.CDefine = 9            # OPENSSL_CPU_INFO

# ---- OPENSSL_init_crypto / OPENSSL_init_ssl 选项位 ----
OpenSslInitNoLoadCryptoStrings: t.CDefine = 0x00000001
OpenSslInitNoLoadConfig: t.CDefine = 0x00000004
OpenSslInitNoAddAllCiphers: t.CDefine = 0x00000008
OpenSslInitNoAddAllDigests: t.CDefine = 0x00000010
OpenSslInitLoadConfig: t.CDefine = 0x00000040
OpenSslInitAsync: t.CDefine = 0x00000080
OpenSslInitDebugFile: t.CDefine = 0x00010000
OpenSslInitAtFork: t.CDefine = 0x00020000
OpenSslInitNoLoadSslStrings: t.CDefine = 0x00100000
OpenSslInitNoAtomics: t.CDefine = 0x00200000

# ---- 版本号（3.6.2，随链接库而定）----
OpenSslVersionMajor: t.CDefine = 3
OpenSslVersionMinor: t.CDefine = 6
OpenSslVersionPatch: t.CDefine = 2

# ---- 全局初始化 / 清理 ----
# int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings)
extern def OPENSSL_init_crypto(opts: t.CUInt64T, settings: bytes) -> int
# int OPENSSL_init_ssl(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings)
extern def OPENSSL_init_ssl(opts: t.CUInt64T, settings: bytes) -> int
extern def OPENSSL_cleanup()

# ---- 版本查询 ----
# const char *OpenSSL_version(int type)
extern def OpenSSL_version(type: int) -> str
# unsigned long OpenSSL_version_num(void)
extern def OpenSSL_version_num() -> t.CUInt32T
extern def OPENSSL_version_pre_release() -> str
extern def OPENSSL_version_build_metadata() -> str

# ---- 内存 / 安全擦除 ----
# void OPENSSL_cleanse(void *ptr, size_t len)
extern def OPENSSL_cleanse(ptr: bytes, len: t.CSizeT)
# void CRYPTO_free(void *ptr, const char *file, int line)
extern def CRYPTO_free(ptr: bytes, file: str, line: int)
# void *CRYPTO_malloc(size_t num, const char *file, int line)
extern def CRYPTO_malloc(num: t.CSizeT, file: str, line: int) -> bytes
# int CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)
extern def CRYPTO_memcmp(in_a: bytes, in_b: bytes, len: t.CSizeT) -> int
# char *OPENSSL_buf2hexstr(const unsigned char *buf, long buflen) → 由 ossl_free 释放
extern def OPENSSL_buf2hexstr(buf: bytes, buflen: t.CInt32T) -> str
# int OPENSSL_hexchar2int(unsigned char c)
extern def OPENSSL_hexchar2int(c: t.CUInt8T) -> int
# int OPENSSL_strcasecmp(const char *s1, const char *s2)
extern def OPENSSL_strcasecmp(s1: str, s2: str) -> int
# int OPENSSL_strncasecmp(const char *s1, const char *s2, size_t n)
extern def OPENSSL_strncasecmp(s1: str, s2: str, n: t.CSizeT) -> int

# ---- 便捷封装（OpenSSL 的 CRYPTO_free/CRYPTO_malloc 宏带 file/line 两参，此处封装为单参）----
def ossl_free(ptr: bytes):
    CRYPTO_free(ptr, "", 0)


def ossl_malloc(num: t.CSizeT) -> bytes:
    return CRYPTO_malloc(num, "", 0)