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system76-edk2/RedfishPkg/PrivateInclude/Library/RedfishCrtLib.h
Abner Chang 6e9233f968 RedfishPkg/RedfishCrtLib: Redfish C runtime library 
Redfish CRT library is currently used by edk2 JsonLib
(open source jansson project) and edk2 RedfishLib
(libredfish open source project). Redfish CrtLib library
provides the necessary C runtime equivalent edk2 functions
for open source projects.

Signed-off-by: Abner Chang <abner.chang@hpe.com>

Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Nickle Wang <nickle.wang@hpe.com>
Cc: Peter O'Hanley <peter.ohanley@hpe.com>
Reviewed-by: Nickle Wang <nickle.wang@hpe.com>
Acked-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2021-01-09 03:08:51 +00:00

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/** @file
Redfish CRT wrapper functions.
Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef REDFISH_CRT_LIB_H_
#define REDFISH_CRT_LIB_H_
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/PrintLib.h>
#define MAX_STRING_SIZE 0x10000000
// Minimum value for an object of type long long int.
#define LLONG_MIN MIN_INT64
// Maximum value for an object of type long long int.
#define LLONG_MAX MAX_INT64
// We dont support double on edk2
#define HUGE_VAL 0
#if defined(MDE_CPU_X64) || defined(MDE_CPU_AARCH64) || 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
#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 INT_MAX MAX_INT32 /* 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 */
// Maximum value for an object of type unsigned long long int.
#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL // 2^64 - 1
// Maximum value for an object of type unsigned char.
#define UCHAR_MAX 255 // 2^8 - 1
//
// Basic types mapping
//
typedef UINTN size_t;
typedef INTN ssize_t;
typedef INT32 time_t;
typedef UINT8 __uint8_t;
typedef UINT8 sa_family_t;
typedef UINT32 uid_t;
typedef UINT32 gid_t;
typedef INT32 int32_t;
typedef UINT32 uint32_t;
typedef UINT16 uint16_t;
typedef UINT8 uint8_t;
typedef enum {false, true} bool;
//
// File operations are not required for EFI building,
// so FILE is mapped to VOID * to pass build
//
typedef VOID *FILE;
/**
This is the Redfish version of CRT snprintf function, this function replaces "%s" to
"%a" before invoking AsciiSPrint(). That is becasue "%s" is unicode base on edk2
environment however "%s" is ascii code base on snprintf().
See definitions of AsciiSPrint() for the details.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param ... Variable argument list whose contents are accessed based on the
format string specified by FormatString.
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator. Zero means no string is produced or the error happens.
**/
UINTN
EFIAPI
RedfishAsciiSPrint (
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
...
);
/**
This is the Redfish version of CRT vsnprintf function, this function replaces "%s" to
"%a" before invoking AsciiVSPrint(). That is because "%s" is unicode base on edk2
environment however "%s" is ascii code base on vsnprintf().
See definitions of AsciiVSPrint() for the details.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param Marker VA_LIST marker for the variable argument list.
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
**/
UINTN
EFIAPI
RedfishAsciiVSPrint (
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
IN VA_LIST Marker
);
//
// Global variables
//
extern int errno;
extern FILE *stderr;
//
// Function prototypes of CRT Library routines
//
void *malloc (size_t);
void *realloc (void *, size_t);
void *calloc (size_t Num, size_t Size);
void free (void *);
void *memset (void *, int, size_t);
int memcmp (const void *, const void *, size_t);
int isdigit (int);
int isspace (int);
int tolower (int);
int isupper (int);
int isxdigit (int);
int isalnum (int);
void *memcpy (void *, const void *, size_t);
void *memset (void *, int, size_t);
void *memchr (const void *, int, size_t);
int memcmp (const void *, const void *, size_t);
void *memmove (void *, const void *, size_t);
int strcmp (const char *, const char *);
int strncmp (const char *, const char *, size_t);
char *strcpy (char *, const char *);
size_t strlen (const char *);
char *strcat (char *, const char *);
char *strchr (const char *, int);
int strcasecmp (const char *, const char *);
int strncasecmp (const char *, const char *, size_t);
char *strncpy (char *, size_t, const char *, size_t);
int strncmp (const char *, const char *, size_t);
char *strrchr (const char *, int);
unsigned long strtoul (const char *, char **, int);
char * strstr (const char *s1 , const char *s2);
long strtol (const char *, char **, int);
char *strerror (int);
size_t strspn (const char *, const char *);
char * strdup (const char *str);
char * strpbrk (const char *s1, const char *s2);
unsigned long long strtoull(const char * nptr, char ** endptr, int base);
long long strtoll (const char * nptr, char ** endptr, int base);
long strtol (const char * nptr, char ** endptr, int base);
double strtod (const char * __restrict nptr, char ** __restrict endptr);
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 *, ...);
int fgetc (FILE * _File);
uid_t getuid (void);
uid_t geteuid (void);
gid_t getgid (void);
gid_t getegid (void);
void qsort (void *, size_t, size_t, int (*)(const void *, const void *));
char *getenv (const char *);
#if defined(__GNUC__) && (__GNUC__ >= 2)
void abort (void) __attribute__((__noreturn__));
#else
void abort (void);
#endif
int toupper (int);
int Digit2Val (int);
time_t time (time_t *);
//
// Macros that directly map functions to BaseLib, BaseMemoryLib, and DebugLib functions
//
#define strcmp AsciiStrCmp
#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,(strlen(strSource)+1),strSource)
#define strncpy(strDest,strSource,count) AsciiStrnCpyS(strDest,(UINTN)count,strSource,(UINTN)count)
#define strncpys(strDest, DestLen, strSource,count) AsciiStrnCpyS(strDest,DestLen,strSource,(UINTN)count)
#define strcat(strDest,strSource) AsciiStrCatS(strDest,(strlen(strSource)+strlen(strDest)+1),strSource)
#define strchr(str,ch) ScanMem8((VOID *)(str),AsciiStrSize(str),(UINT8)ch)
#define strcasecmp(str1,str2) (int)AsciiStriCmp(str1,str2)
#define strstr(s1,s2) AsciiStrStr(s1,s2)
#define snprintf(buf,len,...) RedfishAsciiSPrint(buf,len,__VA_ARGS__)
#define vsnprintf(buf,len,format,marker) RedfishAsciiVSPrint((buf),(len),(format),(marker))
#define assert(expression) ASSERT(expression)
#define offsetof(type,member) OFFSET_OF(type,member)
#define EOF (-1)
extern int errno;
#define ERANGE 34 /* 34 Result too large */
#endif
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