/** @file
  Root include file of C runtime library to support building the third-party
  cryptographic library.

Copyright (c) 2010 - 2022, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef __CRT_LIB_SUPPORT_H__
#define __CRT_LIB_SUPPORT_H__

#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/PrintLib.h>

#define OPENSSLDIR  ""
#define ENGINESDIR  ""

#define MAX_STRING_SIZE  0x1000

//
// We already have "no-ui" in out Configure invocation.
// but the code still fails to compile.
// Ref:  https://github.com/openssl/openssl/issues/8904
//
// This is defined in CRT library(stdio.h).
//
#ifndef BUFSIZ
#define BUFSIZ  8192
#endif

//
// OpenSSL relies on explicit configuration for word size in crypto/bn,
// but we want it to be automatically inferred from the target. So we
// bypass what's in <openssl/opensslconf.h> for OPENSSL_SYS_UEFI, and
// define our own here.
//
#ifdef CONFIG_HEADER_BN_H
  #error CONFIG_HEADER_BN_H already defined
#endif

#define CONFIG_HEADER_BN_H

#if !defined (SIXTY_FOUR_BIT) && !defined (THIRTY_TWO_BIT)
  #if defined (MDE_CPU_X64) || defined (MDE_CPU_AARCH64) || defined (MDE_CPU_IA64) || defined (MDE_CPU_RISCV64)
//
// With GCC we would normally use SIXTY_FOUR_BIT_LONG, but MSVC needs
// SIXTY_FOUR_BIT, because 'long' is 32-bit and only 'long long' is
// 64-bit. Since using 'long long' works fine on GCC too, just do that.
//
#define SIXTY_FOUR_BIT
  #elif defined (MDE_CPU_IA32) || defined (MDE_CPU_ARM) || defined (MDE_CPU_EBC)
#define THIRTY_TWO_BIT
  #else
    #error Unknown target architecture
  #endif
#endif

//
// Map all va_xxxx elements to VA_xxx defined in MdePkg/Include/Base.h
//
#if !defined (__CC_ARM) // if va_list is not already defined
#define va_list   VA_LIST
#define va_arg    VA_ARG
#define va_start  VA_START
#define va_end    VA_END
#else // __CC_ARM
#define va_start(Marker, Parameter)  __va_start(Marker, Parameter)
#define va_arg(Marker, TYPE)         __va_arg(Marker, TYPE)
#define va_end(Marker)               ((void)0)
#endif

//
// Definitions for global constants used by CRT library routines
//
#define EINVAL        22              /* Invalid argument */
#define EAFNOSUPPORT  47              /* Address family not supported by protocol family */
#define INT_MAX       0x7FFFFFFF      /* Maximum (signed) int value */
#define LONG_MAX      0X7FFFFFFFL     /* max value for a long */
#define LONG_MIN      (-LONG_MAX-1)   /* min value for a long */
#define ULONG_MAX     0xFFFFFFFF      /* Maximum unsigned long value */
#define CHAR_BIT      8               /* Number of bits in a char */

//
// Address families.
//
#define AF_INET   2     /* internetwork: UDP, TCP, etc. */
#define AF_INET6  24    /* IP version 6 */

//
// Define constants based on RFC0883, RFC1034, RFC 1035
//
#define NS_INT16SZ    2   /*%< #/bytes of data in a u_int16_t */
#define NS_INADDRSZ   4   /*%< IPv4 T_A */
#define NS_IN6ADDRSZ  16  /*%< IPv6 T_AAAA */

//
// Basic types mapping
//
typedef UINTN   size_t;
typedef UINTN   u_int;
typedef INTN    ptrdiff_t;
typedef INTN    ssize_t;
typedef INT32   time_t;
typedef UINT8   __uint8_t;
typedef UINT8   sa_family_t;
typedef UINT8   u_char;
typedef UINT32  uid_t;
typedef UINT32  gid_t;
typedef CHAR16  wchar_t;

//
// File operations are not required for EFI building,
// so FILE is mapped to VOID * to pass build
//
typedef VOID *FILE;

//
// Structures Definitions
//
struct tm {
  int     tm_sec;    /* seconds after the minute [0-60] */
  int     tm_min;    /* minutes after the hour [0-59] */
  int     tm_hour;   /* hours since midnight [0-23] */
  int     tm_mday;   /* day of the month [1-31] */
  int     tm_mon;    /* months since January [0-11] */
  int     tm_year;   /* years since 1900 */
  int     tm_wday;   /* days since Sunday [0-6] */
  int     tm_yday;   /* days since January 1 [0-365] */
  int     tm_isdst;  /* Daylight Savings Time flag */
  long    tm_gmtoff; /* offset from CUT in seconds */
  char    *tm_zone;  /* timezone abbreviation */
};

struct timeval {
  long    tv_sec;   /* time value, in seconds */
  long    tv_usec;  /* time value, in microseconds */
};

struct sockaddr {
  __uint8_t      sa_len;      /* total length */
  sa_family_t    sa_family;   /* address family */
  char           sa_data[14]; /* actually longer; address value */
};

//
// Global variables
//
extern int   errno;
extern FILE  *stderr;

//
// Function prototypes of CRT Library routines
//
void           *
malloc     (
  size_t
  );

void           *
realloc    (
  void *,
  size_t
  );

void
free        (
  void *
  );

void           *
memset     (
  void *,
  int,
  size_t
  );

int
memcmp      (
  const void *,
  const void *,
  size_t
  );

int
isdigit     (
  int
  );

int
isspace     (
  int
  );

int
isxdigit    (
  int
  );

int
isalnum     (
  int
  );

int
isupper     (
  int
  );

int
tolower     (
  int
  );

int
strcmp      (
  const char *,
  const char *
  );

int
strncasecmp (
  const char *,
  const char *,
  size_t
  );

char           *
strchr     (
  const char *,
  int
  );

char           *
strrchr    (
  const char *,
  int
  );

unsigned long
strtoul     (
  const char *,
  char **,
  int
  );

long
strtol      (
  const char *,
  char **,
  int
  );

char           *
strerror   (
  int
  );

size_t
strspn      (
  const char *,
  const char *
  );

size_t
strcspn     (
  const char *,
  const char *
  );

int
printf      (
  const char *,
  ...
  );

int
sscanf      (
  const char *,
  const char *,
  ...
  );

FILE           *
fopen      (
  const char *,
  const char *
  );

size_t
fread       (
  void *,
  size_t,
  size_t,
  FILE *
  );

size_t
fwrite      (
  const void *,
  size_t,
  size_t,
  FILE *
  );

int
fclose      (
  FILE *
  );

int
fprintf     (
  FILE *,
  const char *,
  ...
  );

time_t
time        (
  time_t *
  );

struct tm      *
gmtime     (
  const time_t *
  );

uid_t
getuid      (
  void
  );

uid_t
geteuid     (
  void
  );

gid_t
getgid      (
  void
  );

gid_t
getegid     (
  void
  );

int
issetugid   (
  void
  );

void
qsort       (
  void *,
  size_t,
  size_t,
  int (*)(const void *, const void *)
  );

char           *
getenv     (
  const char *
  );

char           *
secure_getenv (
  const char *
  );

#if defined (__GNUC__) && (__GNUC__ >= 2)
void
abort       (
  void
  ) __attribute__ ((__noreturn__));

#else
void
abort       (
  void
  );

#endif
int
inet_pton   (
  int,
  const char *,
  void *
  );

//
// Macros that directly map functions to BaseLib, BaseMemoryLib, and DebugLib functions
//
#define memcpy(dest, source, count)         CopyMem(dest,source,(UINTN)(count))
#define memset(dest, ch, count)             SetMem(dest,(UINTN)(count),(UINT8)(ch))
#define memchr(buf, ch, count)              ScanMem8(buf,(UINTN)(count),(UINT8)ch)
#define memcmp(buf1, buf2, count)           (int)(CompareMem(buf1,buf2,(UINTN)(count)))
#define memmove(dest, source, count)        CopyMem(dest,source,(UINTN)(count))
#define strlen(str)                         (size_t)(AsciiStrnLenS(str,MAX_STRING_SIZE))
#define strcpy(strDest, strSource)          AsciiStrCpyS(strDest,MAX_STRING_SIZE,strSource)
#define strncpy(strDest, strSource, count)  AsciiStrnCpyS(strDest,MAX_STRING_SIZE,strSource,(UINTN)count)
#define strcat(strDest, strSource)          AsciiStrCatS(strDest,MAX_STRING_SIZE,strSource)
#define strncmp(string1, string2, count)    (int)(AsciiStrnCmp(string1,string2,(UINTN)(count)))
#define strcasecmp(str1, str2)              (int)AsciiStriCmp(str1,str2)
#define sprintf(buf, ...)                   AsciiSPrint(buf,MAX_STRING_SIZE,__VA_ARGS__)
#define localtime(timer)                    NULL
#define assert(expression)
#define offsetof(type, member)  OFFSET_OF(type,member)
#define atoi(nptr)              AsciiStrDecimalToUintn(nptr)
#define gettimeofday(tvp, tz)   do { (tvp)->tv_sec = time(NULL); (tvp)->tv_usec = 0; } while (0)

#endif