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audk/MdeModulePkg/Library/DxePrintLibPrint2Protocol/PrintLib.c

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/** @file
Instance of Print Library based on gEfiPrint2SProtocolGuid.
Implement the print library instance by wrap the interface
provided in the Print2S protocol. This protocol is defined as the internal
protocol related to this implementation, not in the public spec. So, this
library instance is only for this code base.
Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Uefi.h>
#include <Base.h>
#include <Protocol/Print2.h>
#include <Library/PrintLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#define ASSERT_UNICODE_BUFFER(Buffer) ASSERT ((((UINTN) (Buffer)) & 0x01) == 0)
//
// Safe print checks
//
#define RSIZE_MAX (PcdGet32 (PcdMaximumUnicodeStringLength))
#define ASCII_RSIZE_MAX (PcdGet32 (PcdMaximumAsciiStringLength))
#define SAFE_PRINT_CONSTRAINT_CHECK(Expression, RetVal) \
do { \
ASSERT (Expression); \
if (!(Expression)) { \
return RetVal; \
} \
} while (FALSE)
EFI_PRINT2S_PROTOCOL *mPrint2SProtocol = NULL;
/**
The constructor function caches the pointer to Print2S protocol.
The constructor function locates Print2S protocol from protocol database.
It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
**/
EFI_STATUS
EFIAPI
PrintLibConstructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = SystemTable->BootServices->LocateProtocol (
&gEfiPrint2SProtocolGuid,
NULL,
(VOID **)&mPrint2SProtocol
);
ASSERT_EFI_ERROR (Status);
ASSERT (mPrint2SProtocol != NULL);
return Status;
}
/**
Worker function that converts a VA_LIST to a BASE_LIST based on a Null-terminated
format string.
@param AsciiFormat TRUE if Format is an ASCII string. FALSE if Format is a Unicode string.
@param Format Null-terminated format string.
@param VaListMarker VA_LIST style variable argument list consumed by processing Format.
@param BaseListMarker BASE_LIST style variable argument list consumed by processing Format.
@param Size The size, in bytes, of the BaseListMarker buffer.
@return TRUE The VA_LIST has been converted to BASE_LIST.
@return FALSE The VA_LIST has not been converted to BASE_LIST.
**/
BOOLEAN
DxePrintLibPrint2ProtocolVaListToBaseList (
IN BOOLEAN AsciiFormat,
IN CONST CHAR8 *Format,
IN VA_LIST VaListMarker,
OUT BASE_LIST BaseListMarker,
IN UINTN Size
)
{
BASE_LIST BaseListStart;
UINTN BytesPerFormatCharacter;
UINTN FormatMask;
UINTN FormatCharacter;
BOOLEAN Long;
BOOLEAN Done;
ASSERT (BaseListMarker != NULL);
SAFE_PRINT_CONSTRAINT_CHECK ((Format != NULL), FALSE);
BaseListStart = BaseListMarker;
if (AsciiFormat) {
if (ASCII_RSIZE_MAX != 0) {
SAFE_PRINT_CONSTRAINT_CHECK ((AsciiStrnLenS (Format, ASCII_RSIZE_MAX + 1) <= ASCII_RSIZE_MAX), FALSE);
}
BytesPerFormatCharacter = 1;
FormatMask = 0xff;
} else {
if (RSIZE_MAX != 0) {
SAFE_PRINT_CONSTRAINT_CHECK ((StrnLenS ((CHAR16 *)Format, RSIZE_MAX + 1) <= RSIZE_MAX), FALSE);
}
BytesPerFormatCharacter = 2;
FormatMask = 0xffff;
}
//
// Get the first character from the format string
//
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
while (FormatCharacter != 0) {
if (FormatCharacter == '%') {
Long = FALSE;
//
// Parse Flags and Width
//
for (Done = FALSE; !Done; ) {
//
// Get the next character from the format string
//
Format += BytesPerFormatCharacter;
//
// Get the next character from the format string
//
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
switch (FormatCharacter) {
case '.':
case '-':
case '+':
case ' ':
case ',':
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
break;
case 'L':
case 'l':
Long = TRUE;
break;
case '*':
BASE_ARG (BaseListMarker, UINTN) = VA_ARG (VaListMarker, UINTN);
break;
case '\0':
//
// Make no output if Format string terminates unexpectedly when
// looking up for flag, width, precision and type.
//
Format -= BytesPerFormatCharacter;
//
// break skipped on purpose.
//
default:
Done = TRUE;
break;
}
}
//
// Handle each argument type
//
switch (FormatCharacter) {
case 'p':
if (sizeof (VOID *) > 4) {
Long = TRUE;
}
case 'X':
case 'x':
case 'u':
case 'd':
if (Long) {
BASE_ARG (BaseListMarker, INT64) = VA_ARG (VaListMarker, INT64);
} else {
BASE_ARG (BaseListMarker, int) = VA_ARG (VaListMarker, int);
}
break;
case 's':
case 'S':
case 'a':
case 'g':
case 't':
BASE_ARG (BaseListMarker, VOID *) = VA_ARG (VaListMarker, VOID *);
break;
case 'c':
BASE_ARG (BaseListMarker, UINTN) = VA_ARG (VaListMarker, UINTN);
break;
case 'r':
BASE_ARG (BaseListMarker, RETURN_STATUS) = VA_ARG (VaListMarker, RETURN_STATUS);
break;
}
}
//
// If BASE_LIST is larger than Size, then return FALSE
//
if (((UINTN)BaseListMarker - (UINTN)BaseListStart) > Size) {
DEBUG ((DEBUG_ERROR, "The input variable argument list is too long. Please consider breaking into multiple print calls.\n"));
return FALSE;
}
//
// Get the next character from the format string
//
Format += BytesPerFormatCharacter;
//
// Get the next character from the format string
//
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
}
return TRUE;
}
/**
Produces a Null-terminated Unicode string in an output buffer based on
a Null-terminated Unicode format string and a VA_LIST argument list.
This function is similar as vsnprintf_s defined in C11.
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on the
contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
(PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
buffer is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0 or 1, then the output buffer is unmodified and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param Marker VA_LIST marker for the variable argument list.
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
**/
UINTN
EFIAPI
UnicodeVSPrint (
OUT CHAR16 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR16 *FormatString,
IN VA_LIST Marker
)
{
UINT64 BaseListMarker[256 / sizeof (UINT64)];
BOOLEAN Converted;
ASSERT_UNICODE_BUFFER (StartOfBuffer);
ASSERT_UNICODE_BUFFER (FormatString);
Converted = DxePrintLibPrint2ProtocolVaListToBaseList (
FALSE,
(CHAR8 *)FormatString,
Marker,
(BASE_LIST)BaseListMarker,
sizeof (BaseListMarker) - 8
);
if (!Converted) {
return 0;
}
return UnicodeBSPrint (StartOfBuffer, BufferSize, FormatString, (BASE_LIST)BaseListMarker);
}
/**
Produces a Null-terminated Unicode string in an output buffer based on
a Null-terminated Unicode format string and a BASE_LIST argument list.
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on the
contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
(PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
buffer is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0 or 1, then the output buffer is unmodified and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param Marker BASE_LIST marker for the variable argument list.
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
**/
UINTN
EFIAPI
UnicodeBSPrint (
OUT CHAR16 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR16 *FormatString,
IN BASE_LIST Marker
)
{
ASSERT_UNICODE_BUFFER (StartOfBuffer);
ASSERT_UNICODE_BUFFER (FormatString);
return mPrint2SProtocol->UnicodeBSPrint (StartOfBuffer, BufferSize, FormatString, Marker);
}
/**
Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
Unicode format string and variable argument list.
This function is similar as snprintf_s defined in C11.
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list based on the contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
(PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
buffer is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0 or 1, then the output buffer is unmodified and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param ... Variable argument list whose contents are accessed based on the
format string specified by FormatString.
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
**/
UINTN
EFIAPI
UnicodeSPrint (
OUT CHAR16 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR16 *FormatString,
...
)
{
VA_LIST Marker;
UINTN NumberOfPrinted;
VA_START (Marker, FormatString);
NumberOfPrinted = UnicodeVSPrint (StartOfBuffer, BufferSize, FormatString, Marker);
VA_END (Marker);
return NumberOfPrinted;
}
/**
Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
ASCII format string and a VA_LIST argument list.
This function is similar as vsnprintf_s defined in C11.
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on the
contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
(PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
buffer is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode 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 Unicode characters in the produced output buffer not including the
Null-terminator.
**/
UINTN
EFIAPI
UnicodeVSPrintAsciiFormat (
OUT CHAR16 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
IN VA_LIST Marker
)
{
UINT64 BaseListMarker[256 / sizeof (UINT64)];
BOOLEAN Converted;
ASSERT_UNICODE_BUFFER (StartOfBuffer);
Converted = DxePrintLibPrint2ProtocolVaListToBaseList (
TRUE,
FormatString,
Marker,
(BASE_LIST)BaseListMarker,
sizeof (BaseListMarker) - 8
);
if (!Converted) {
return 0;
}
return UnicodeBSPrintAsciiFormat (StartOfBuffer, BufferSize, FormatString, (BASE_LIST)BaseListMarker);
}
/**
Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
ASCII format string and a BASE_LIST argument list.
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on the
contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
(PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
buffer is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param Marker BASE_LIST marker for the variable argument list.
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
**/
UINTN
EFIAPI
UnicodeBSPrintAsciiFormat (
OUT CHAR16 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
IN BASE_LIST Marker
)
{
ASSERT_UNICODE_BUFFER (StartOfBuffer);
return mPrint2SProtocol->UnicodeBSPrintAsciiFormat (StartOfBuffer, BufferSize, FormatString, Marker);
}
/**
Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
ASCII format string and variable argument list.
This function is similar as snprintf_s defined in C11.
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list based on the contents of the
format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
(PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
buffer is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode 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 Unicode characters in the produced output buffer not including the
Null-terminator.
**/
UINTN
EFIAPI
UnicodeSPrintAsciiFormat (
OUT CHAR16 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
...
)
{
VA_LIST Marker;
UINTN NumberOfPrinted;
VA_START (Marker, FormatString);
NumberOfPrinted = UnicodeVSPrintAsciiFormat (StartOfBuffer, BufferSize, FormatString, Marker);
VA_END (Marker);
return NumberOfPrinted;
}
/**
Converts a decimal value to a Null-terminated Unicode string.
Converts the decimal number specified by Value to a Null-terminated Unicode
string specified by Buffer containing at most Width characters. No padding of
spaces is ever performed. If Width is 0 then a width of
MAXIMUM_VALUE_CHARACTERS is assumed. If the conversion contains more than
Width characters, then only the first Width characters are placed in Buffer.
Additional conversion parameters are specified in Flags.
The Flags bit LEFT_JUSTIFY is always ignored.
All conversions are left justified in Buffer.
If Width is 0, PREFIX_ZERO is ignored in Flags.
If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and
commas are inserted every 3rd digit starting from the right.
If RADIX_HEX is set in Flags, then the output buffer will be formatted in
hexadecimal format.
If Value is < 0 and RADIX_HEX is not set in Flags, then the fist character in
Buffer is a '-'.
If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored, then
Buffer is padded with '0' characters so the combination of the optional '-'
sign character, '0' characters, digit characters for Value, and the
Null-terminator add up to Width characters.
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
If an error would be returned, then the function will also ASSERT().
@param Buffer The pointer to the output buffer for the produced
Null-terminated Unicode string.
@param BufferSize The size of Buffer in bytes, including the
Null-terminator.
@param Flags The bitmask of flags that specify left justification,
zero pad, and commas.
@param Value The 64-bit signed value to convert to a string.
@param Width The maximum number of Unicode characters to place in
Buffer, not including the Null-terminator.
@retval RETURN_SUCCESS The decimal value is converted.
@retval RETURN_BUFFER_TOO_SMALL If BufferSize cannot hold the converted
value.
@retval RETURN_INVALID_PARAMETER If Buffer is NULL.
If PcdMaximumUnicodeStringLength is not
zero, and BufferSize is greater than
(PcdMaximumUnicodeStringLength *
sizeof (CHAR16) + 1).
If unsupported bits are set in Flags.
If both COMMA_TYPE and RADIX_HEX are set in
Flags.
If Width >= MAXIMUM_VALUE_CHARACTERS.
**/
RETURN_STATUS
EFIAPI
UnicodeValueToStringS (
IN OUT CHAR16 *Buffer,
IN UINTN BufferSize,
IN UINTN Flags,
IN INT64 Value,
IN UINTN Width
)
{
return mPrint2SProtocol->UnicodeValueToStringS (Buffer, BufferSize, Flags, Value, Width);
}
/**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
ASCII format string and a VA_LIST argument list.
This function is similar as vsnprintf_s defined in C11.
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on
the contents of the format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and BufferSize >
(PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0, then no output buffer is produced and 0 is returned.
@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
AsciiVSPrint (
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
IN VA_LIST Marker
)
{
UINT64 BaseListMarker[256 / sizeof (UINT64)];
BOOLEAN Converted;
Converted = DxePrintLibPrint2ProtocolVaListToBaseList (
TRUE,
FormatString,
Marker,
(BASE_LIST)BaseListMarker,
sizeof (BaseListMarker) - 8
);
if (!Converted) {
return 0;
}
return AsciiBSPrint (StartOfBuffer, BufferSize, FormatString, (BASE_LIST)BaseListMarker);
}
/**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
ASCII format string and a BASE_LIST argument list.
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on
the contents of the format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and BufferSize >
(PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0, then no output buffer is produced and 0 is returned.
@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 BASE_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
AsciiBSPrint (
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
IN BASE_LIST Marker
)
{
return mPrint2SProtocol->AsciiBSPrint (StartOfBuffer, BufferSize, FormatString, Marker);
}
/**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
ASCII format string and variable argument list.
This function is similar as snprintf_s defined in C11.
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list based on the contents of the
format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and BufferSize >
(PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0, then no output buffer is produced and 0 is returned.
@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.
**/
UINTN
EFIAPI
AsciiSPrint (
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
...
)
{
VA_LIST Marker;
UINTN NumberOfPrinted;
VA_START (Marker, FormatString);
NumberOfPrinted = AsciiVSPrint (StartOfBuffer, BufferSize, FormatString, Marker);
VA_END (Marker);
return NumberOfPrinted;
}
/**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
Unicode format string and a VA_LIST argument list.
This function is similar as vsnprintf_s defined in C11.
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on
the contents of the format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and BufferSize >
(PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0, then no output buffer is produced and 0 is returned.
@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 Unicode 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
AsciiVSPrintUnicodeFormat (
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR16 *FormatString,
IN VA_LIST Marker
)
{
UINT64 BaseListMarker[256 / sizeof (UINT64)];
BOOLEAN Converted;
ASSERT_UNICODE_BUFFER (FormatString);
Converted = DxePrintLibPrint2ProtocolVaListToBaseList (
FALSE,
(CHAR8 *)FormatString,
Marker,
(BASE_LIST)BaseListMarker,
sizeof (BaseListMarker) - 8
);
if (!Converted) {
return 0;
}
return AsciiBSPrintUnicodeFormat (StartOfBuffer, BufferSize, FormatString, (BASE_LIST)BaseListMarker);
}
/**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
Unicode format string and a BASE_LIST argument list.
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on
the contents of the format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and BufferSize >
(PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0, then no output buffer is produced and 0 is returned.
@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 Unicode format string.
@param Marker BASE_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
AsciiBSPrintUnicodeFormat (
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR16 *FormatString,
IN BASE_LIST Marker
)
{
ASSERT_UNICODE_BUFFER (FormatString);
return mPrint2SProtocol->AsciiBSPrintUnicodeFormat (StartOfBuffer, BufferSize, FormatString, Marker);
}
/**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
Unicode format string and variable argument list.
This function is similar as snprintf_s defined in C11.
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list based on the contents of the
format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and BufferSize >
(PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0, then no output buffer is produced and 0 is returned.
@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 Unicode 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.
**/
UINTN
EFIAPI
AsciiSPrintUnicodeFormat (
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR16 *FormatString,
...
)
{
VA_LIST Marker;
UINTN NumberOfPrinted;
VA_START (Marker, FormatString);
NumberOfPrinted = AsciiVSPrintUnicodeFormat (StartOfBuffer, BufferSize, FormatString, Marker);
VA_END (Marker);
return NumberOfPrinted;
}
/**
Converts a decimal value to a Null-terminated Ascii string.
Converts the decimal number specified by Value to a Null-terminated Ascii
string specified by Buffer containing at most Width characters. No padding of
spaces is ever performed. If Width is 0 then a width of
MAXIMUM_VALUE_CHARACTERS is assumed. If the conversion contains more than
Width characters, then only the first Width characters are placed in Buffer.
Additional conversion parameters are specified in Flags.
The Flags bit LEFT_JUSTIFY is always ignored.
All conversions are left justified in Buffer.
If Width is 0, PREFIX_ZERO is ignored in Flags.
If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and
commas are inserted every 3rd digit starting from the right.
If RADIX_HEX is set in Flags, then the output buffer will be formatted in
hexadecimal format.
If Value is < 0 and RADIX_HEX is not set in Flags, then the fist character in
Buffer is a '-'.
If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored, then
Buffer is padded with '0' characters so the combination of the optional '-'
sign character, '0' characters, digit characters for Value, and the
Null-terminator add up to Width characters.
If an error would be returned, then the function will ASSERT().
@param Buffer The pointer to the output buffer for the produced
Null-terminated Ascii string.
@param BufferSize The size of Buffer in bytes, including the
Null-terminator.
@param Flags The bitmask of flags that specify left justification,
zero pad, and commas.
@param Value The 64-bit signed value to convert to a string.
@param Width The maximum number of Ascii characters to place in
Buffer, not including the Null-terminator.
@retval RETURN_SUCCESS The decimal value is converted.
@retval RETURN_BUFFER_TOO_SMALL If BufferSize cannot hold the converted
value.
@retval RETURN_INVALID_PARAMETER If Buffer is NULL.
If PcdMaximumAsciiStringLength is not
zero, and BufferSize is greater than
PcdMaximumAsciiStringLength.
If unsupported bits are set in Flags.
If both COMMA_TYPE and RADIX_HEX are set in
Flags.
If Width >= MAXIMUM_VALUE_CHARACTERS.
**/
RETURN_STATUS
EFIAPI
AsciiValueToStringS (
IN OUT CHAR8 *Buffer,
IN UINTN BufferSize,
IN UINTN Flags,
IN INT64 Value,
IN UINTN Width
)
{
return mPrint2SProtocol->AsciiValueToStringS (Buffer, BufferSize, Flags, Value, Width);
}
#define PREFIX_SIGN BIT1
#define PREFIX_BLANK BIT2
#define LONG_TYPE BIT4
#define OUTPUT_UNICODE BIT6
#define FORMAT_UNICODE BIT8
#define PAD_TO_WIDTH BIT9
#define ARGUMENT_UNICODE BIT10
#define PRECISION BIT11
#define ARGUMENT_REVERSED BIT12
#define COUNT_ONLY_NO_PRINT BIT13
#define UNSIGNED_TYPE BIT14
//
// Record date and time information
//
typedef struct {
UINT16 Year;
UINT8 Month;
UINT8 Day;
UINT8 Hour;
UINT8 Minute;
UINT8 Second;
UINT8 Pad1;
UINT32 Nanosecond;
INT16 TimeZone;
UINT8 Daylight;
UINT8 Pad2;
} TIME;
GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 mHexStr[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
/**
Internal function that convert a number to a string in Buffer.
Print worker function that converts a decimal or hexadecimal number to an ASCII string in Buffer.
@param Buffer Location to place the ASCII string of Value.
@param Value The value to convert to a Decimal or Hexadecimal string in Buffer.
@param Radix Radix of the value
@return A pointer to the end of buffer filled with ASCII string.
**/
CHAR8 *
InternalPrintLibValueToString (
IN OUT CHAR8 *Buffer,
IN INT64 Value,
IN UINTN Radix
)
{
UINT32 Remainder;
//
// Loop to convert one digit at a time in reverse order
//
*Buffer = 0;
do {
Value = (INT64)DivU64x32Remainder ((UINT64)Value, (UINT32)Radix, &Remainder);
*(++Buffer) = mHexStr[Remainder];
} while (Value != 0);
//
// Return pointer of the end of filled buffer.
//
return Buffer;
}
/**
Worker function that produces a Null-terminated string in an output buffer
based on a Null-terminated format string and a VA_LIST argument list.
VSPrint function to process format and place the results in Buffer. Since a
VA_LIST is used this routine allows the nesting of Vararg routines. Thus
this is the main print working routine.
If COUNT_ONLY_NO_PRINT is set in Flags, Buffer will not be modified at all.
@param[out] Buffer The character buffer to print the results of the
parsing of Format into.
@param[in] BufferSize The maximum number of characters to put into
buffer.
@param[in] Flags Initial flags value.
Can only have FORMAT_UNICODE, OUTPUT_UNICODE,
and COUNT_ONLY_NO_PRINT set.
@param[in] Format A Null-terminated format string.
@param[in] VaListMarker VA_LIST style variable argument list consumed by
processing Format.
@param[in] BaseListMarker BASE_LIST style variable argument list consumed
by processing Format.
@return The number of characters printed not including the Null-terminator.
If COUNT_ONLY_NO_PRINT was set returns the same, but without any
modification to Buffer.
**/
UINTN
InternalPrintLibSPrintMarker (
OUT CHAR8 *Buffer,
IN UINTN BufferSize,
IN UINTN Flags,
IN CONST CHAR8 *Format,
IN VA_LIST VaListMarker OPTIONAL,
IN BASE_LIST BaseListMarker OPTIONAL
);
/**
Worker function that produces a Null-terminated string in an output buffer
based on a Null-terminated format string and variable argument list.
VSPrint function to process format and place the results in Buffer. Since a
VA_LIST is used this routine allows the nesting of Vararg routines. Thus
this is the main print working routine
@param StartOfBuffer The character buffer to print the results of the parsing
of Format into.
@param BufferSize The maximum number of characters to put into buffer.
Zero means no limit.
@param Flags Initial flags value.
Can only have FORMAT_UNICODE and OUTPUT_UNICODE set
@param FormatString A Null-terminated format string.
@param ... The variable argument list.
@return The number of characters printed.
**/
UINTN
EFIAPI
InternalPrintLibSPrint (
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN UINTN Flags,
IN CONST CHAR8 *FormatString,
...
)
{
VA_LIST Marker;
UINTN NumberOfPrinted;
VA_START (Marker, FormatString);
NumberOfPrinted = InternalPrintLibSPrintMarker (StartOfBuffer, BufferSize, Flags, FormatString, Marker, NULL);
VA_END (Marker);
return NumberOfPrinted;
}
#define WARNING_STATUS_NUMBER 5
#define ERROR_STATUS_NUMBER 33
GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 *CONST mStatusString[] = {
"Success", // RETURN_SUCCESS = 0
"Warning Unknown Glyph", // RETURN_WARN_UNKNOWN_GLYPH = 1
"Warning Delete Failure", // RETURN_WARN_DELETE_FAILURE = 2
"Warning Write Failure", // RETURN_WARN_WRITE_FAILURE = 3
"Warning Buffer Too Small", // RETURN_WARN_BUFFER_TOO_SMALL = 4
"Warning Stale Data", // RETURN_WARN_STALE_DATA = 5
"Load Error", // RETURN_LOAD_ERROR = 1 | MAX_BIT
"Invalid Parameter", // RETURN_INVALID_PARAMETER = 2 | MAX_BIT
"Unsupported", // RETURN_UNSUPPORTED = 3 | MAX_BIT
"Bad Buffer Size", // RETURN_BAD_BUFFER_SIZE = 4 | MAX_BIT
"Buffer Too Small", // RETURN_BUFFER_TOO_SMALL, = 5 | MAX_BIT
"Not Ready", // RETURN_NOT_READY = 6 | MAX_BIT
"Device Error", // RETURN_DEVICE_ERROR = 7 | MAX_BIT
"Write Protected", // RETURN_WRITE_PROTECTED = 8 | MAX_BIT
"Out of Resources", // RETURN_OUT_OF_RESOURCES = 9 | MAX_BIT
"Volume Corrupt", // RETURN_VOLUME_CORRUPTED = 10 | MAX_BIT
"Volume Full", // RETURN_VOLUME_FULL = 11 | MAX_BIT
"No Media", // RETURN_NO_MEDIA = 12 | MAX_BIT
"Media changed", // RETURN_MEDIA_CHANGED = 13 | MAX_BIT
"Not Found", // RETURN_NOT_FOUND = 14 | MAX_BIT
"Access Denied", // RETURN_ACCESS_DENIED = 15 | MAX_BIT
"No Response", // RETURN_NO_RESPONSE = 16 | MAX_BIT
"No mapping", // RETURN_NO_MAPPING = 17 | MAX_BIT
"Time out", // RETURN_TIMEOUT = 18 | MAX_BIT
"Not started", // RETURN_NOT_STARTED = 19 | MAX_BIT
"Already started", // RETURN_ALREADY_STARTED = 20 | MAX_BIT
"Aborted", // RETURN_ABORTED = 21 | MAX_BIT
"ICMP Error", // RETURN_ICMP_ERROR = 22 | MAX_BIT
"TFTP Error", // RETURN_TFTP_ERROR = 23 | MAX_BIT
"Protocol Error", // RETURN_PROTOCOL_ERROR = 24 | MAX_BIT
"Incompatible Version", // RETURN_INCOMPATIBLE_VERSION = 25 | MAX_BIT
"Security Violation", // RETURN_SECURITY_VIOLATION = 26 | MAX_BIT
"CRC Error", // RETURN_CRC_ERROR = 27 | MAX_BIT
"End of Media", // RETURN_END_OF_MEDIA = 28 | MAX_BIT
"Reserved (29)", // RESERVED = 29 | MAX_BIT
"Reserved (30)", // RESERVED = 30 | MAX_BIT
"End of File", // RETURN_END_OF_FILE = 31 | MAX_BIT
"Invalid Language", // RETURN_INVALID_LANGUAGE = 32 | MAX_BIT
"Compromised Data" // RETURN_COMPROMISED_DATA = 33 | MAX_BIT
};
/**
Internal function that places the character into the Buffer.
Internal function that places ASCII or Unicode character into the Buffer.
@param Buffer The buffer to place the Unicode or ASCII string.
@param EndBuffer The end of the input Buffer. No characters will be
placed after that.
@param Length The count of character to be placed into Buffer.
(Negative value indicates no buffer fill.)
@param Character The character to be placed into Buffer.
@param Increment The character increment in Buffer.
@return Buffer.
**/
CHAR8 *
InternalPrintLibFillBuffer (
OUT CHAR8 *Buffer,
IN CHAR8 *EndBuffer,
IN INTN Length,
IN UINTN Character,
IN INTN Increment
)
{
INTN Index;
for (Index = 0; Index < Length && Buffer < EndBuffer; Index++) {
*Buffer = (CHAR8)Character;
if (Increment != 1) {
*(Buffer + 1) = (CHAR8)(Character >> 8);
}
Buffer += Increment;
}
return Buffer;
}
/**
Worker function that produces a Null-terminated string in an output buffer
based on a Null-terminated format string and a VA_LIST argument list.
VSPrint function to process format and place the results in Buffer. Since a
VA_LIST is used this routine allows the nesting of Vararg routines. Thus
this is the main print working routine.
If COUNT_ONLY_NO_PRINT is set in Flags, Buffer will not be modified at all.
@param[out] Buffer The character buffer to print the results of the
parsing of Format into.
@param[in] BufferSize The maximum number of characters to put into
buffer.
@param[in] Flags Initial flags value.
Can only have FORMAT_UNICODE, OUTPUT_UNICODE,
and COUNT_ONLY_NO_PRINT set.
@param[in] Format A Null-terminated format string.
@param[in] VaListMarker VA_LIST style variable argument list consumed by
processing Format.
@param[in] BaseListMarker BASE_LIST style variable argument list consumed
by processing Format.
@return The number of characters printed not including the Null-terminator.
If COUNT_ONLY_NO_PRINT was set returns the same, but without any
modification to Buffer.
**/
UINTN
InternalPrintLibSPrintMarker (
OUT CHAR8 *Buffer,
IN UINTN BufferSize,
IN UINTN Flags,
IN CONST CHAR8 *Format,
IN VA_LIST VaListMarker OPTIONAL,
IN BASE_LIST BaseListMarker OPTIONAL
)
{
CHAR8 *OriginalBuffer;
CHAR8 *EndBuffer;
CHAR8 ValueBuffer[MAXIMUM_VALUE_CHARACTERS];
UINT32 BytesPerOutputCharacter;
UINTN BytesPerFormatCharacter;
UINTN FormatMask;
UINTN FormatCharacter;
UINTN Width;
UINTN Precision;
INT64 Value;
CONST CHAR8 *ArgumentString;
UINTN Character;
GUID *TmpGuid;
TIME *TmpTime;
UINTN Count;
UINTN ArgumentMask;
INTN BytesPerArgumentCharacter;
UINTN ArgumentCharacter;
BOOLEAN Done;
UINTN Index;
CHAR8 Prefix;
BOOLEAN ZeroPad;
BOOLEAN Comma;
UINTN Digits;
UINTN Radix;
RETURN_STATUS Status;
UINT32 GuidData1;
UINT16 GuidData2;
UINT16 GuidData3;
UINTN LengthToReturn;
//
// If you change this code be sure to match the 2 versions of this function.
// Nearly identical logic is found in the BasePrintLib and
// DxePrintLibPrint2Protocol (both PrintLib instances).
//
//
// 1. Buffer shall not be a null pointer when both BufferSize > 0 and
// COUNT_ONLY_NO_PRINT is not set in Flags.
//
if ((BufferSize > 0) && ((Flags & COUNT_ONLY_NO_PRINT) == 0)) {
SAFE_PRINT_CONSTRAINT_CHECK ((Buffer != NULL), 0);
}
//
// 2. Format shall not be a null pointer when BufferSize > 0 or when
// COUNT_ONLY_NO_PRINT is set in Flags.
//
if ((BufferSize > 0) || ((Flags & COUNT_ONLY_NO_PRINT) != 0)) {
SAFE_PRINT_CONSTRAINT_CHECK ((Format != NULL), 0);
}
//
// 3. BufferSize shall not be greater than RSIZE_MAX for Unicode output or
// ASCII_RSIZE_MAX for Ascii output.
//
if ((Flags & OUTPUT_UNICODE) != 0) {
if (RSIZE_MAX != 0) {
SAFE_PRINT_CONSTRAINT_CHECK ((BufferSize <= RSIZE_MAX), 0);
}
BytesPerOutputCharacter = 2;
} else {
if (ASCII_RSIZE_MAX != 0) {
SAFE_PRINT_CONSTRAINT_CHECK ((BufferSize <= ASCII_RSIZE_MAX), 0);
}
BytesPerOutputCharacter = 1;
}
//
// 4. Format shall not contain more than RSIZE_MAX Unicode characters or
// ASCII_RSIZE_MAX Ascii characters.
//
if ((Flags & FORMAT_UNICODE) != 0) {
if (RSIZE_MAX != 0) {
SAFE_PRINT_CONSTRAINT_CHECK ((StrnLenS ((CHAR16 *)Format, RSIZE_MAX + 1) <= RSIZE_MAX), 0);
}
BytesPerFormatCharacter = 2;
FormatMask = 0xffff;
} else {
if (ASCII_RSIZE_MAX != 0) {
SAFE_PRINT_CONSTRAINT_CHECK ((AsciiStrnLenS (Format, ASCII_RSIZE_MAX + 1) <= ASCII_RSIZE_MAX), 0);
}
BytesPerFormatCharacter = 1;
FormatMask = 0xff;
}
if ((Flags & COUNT_ONLY_NO_PRINT) != 0) {
if (BufferSize == 0) {
Buffer = NULL;
}
} else {
//
// We can run without a Buffer for counting only.
//
if (BufferSize == 0) {
return 0;
}
}
LengthToReturn = 0;
EndBuffer = NULL;
OriginalBuffer = NULL;
//
// Reserve space for the Null terminator.
//
if (Buffer != NULL) {
BufferSize--;
OriginalBuffer = Buffer;
//
// Set the tag for the end of the input Buffer.
//
EndBuffer = Buffer + BufferSize * BytesPerOutputCharacter;
}
//
// Get the first character from the format string
//
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
//
// Loop until the end of the format string is reached or the output buffer is full
//
while (FormatCharacter != 0) {
if ((Buffer != NULL) && (Buffer >= EndBuffer)) {
break;
}
//
// Clear all the flag bits except those that may have been passed in
//
Flags &= (UINTN)(OUTPUT_UNICODE | FORMAT_UNICODE | COUNT_ONLY_NO_PRINT);
//
// Set the default width to zero, and the default precision to 1
//
Width = 0;
Precision = 1;
Prefix = 0;
Comma = FALSE;
ZeroPad = FALSE;
Count = 0;
Digits = 0;
switch (FormatCharacter) {
case '%':
//
// Parse Flags and Width
//
for (Done = FALSE; !Done; ) {
Format += BytesPerFormatCharacter;
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
switch (FormatCharacter) {
case '.':
Flags |= PRECISION;
break;
case '-':
Flags |= LEFT_JUSTIFY;
break;
case '+':
Flags |= PREFIX_SIGN;
break;
case ' ':
Flags |= PREFIX_BLANK;
break;
case ',':
Flags |= COMMA_TYPE;
break;
case 'L':
case 'l':
Flags |= LONG_TYPE;
break;
case '*':
if ((Flags & PRECISION) == 0) {
Flags |= PAD_TO_WIDTH;
if (BaseListMarker == NULL) {
Width = VA_ARG (VaListMarker, UINTN);
} else {
Width = BASE_ARG (BaseListMarker, UINTN);
}
} else {
if (BaseListMarker == NULL) {
Precision = VA_ARG (VaListMarker, UINTN);
} else {
Precision = BASE_ARG (BaseListMarker, UINTN);
}
}
break;
case '0':
if ((Flags & PRECISION) == 0) {
Flags |= PREFIX_ZERO;
}
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
for (Count = 0; ((FormatCharacter >= '0') && (FormatCharacter <= '9')); ) {
Count = (Count * 10) + FormatCharacter - '0';
Format += BytesPerFormatCharacter;
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
}
Format -= BytesPerFormatCharacter;
if ((Flags & PRECISION) == 0) {
Flags |= PAD_TO_WIDTH;
Width = Count;
} else {
Precision = Count;
}
break;
case '\0':
//
// Make no output if Format string terminates unexpectedly when
// looking up for flag, width, precision and type.
//
Format -= BytesPerFormatCharacter;
Precision = 0;
//
// break skipped on purpose.
//
default:
Done = TRUE;
break;
}
}
//
// Handle each argument type
//
switch (FormatCharacter) {
case 'p':
//
// Flag space, +, 0, L & l are invalid for type p.
//
Flags &= ~((UINTN)(PREFIX_BLANK | PREFIX_SIGN | PREFIX_ZERO | LONG_TYPE));
if (sizeof (VOID *) > 4) {
Flags |= LONG_TYPE;
}
//
// break skipped on purpose
//
case 'X':
Flags |= PREFIX_ZERO;
//
// break skipped on purpose
//
case 'x':
Flags |= RADIX_HEX;
//
// break skipped on purpose
//
case 'u':
if ((Flags & RADIX_HEX) == 0) {
Flags &= ~((UINTN)(PREFIX_SIGN));
Flags |= UNSIGNED_TYPE;
}
//
// break skipped on purpose
//
case 'd':
if ((Flags & LONG_TYPE) == 0) {
//
// 'd', 'u', 'x', and 'X' that are not preceded by 'l' or 'L' are assumed to be type "int".
// This assumption is made so the format string definition is compatible with the ANSI C
// Specification for formatted strings. It is recommended that the Base Types be used
// everywhere, but in this one case, compliance with ANSI C is more important, and
// provides an implementation that is compatible with that largest possible set of CPU
// architectures. This is why the type "int" is used in this one case.
//
if (BaseListMarker == NULL) {
Value = VA_ARG (VaListMarker, int);
} else {
Value = BASE_ARG (BaseListMarker, int);
}
} else {
if (BaseListMarker == NULL) {
Value = VA_ARG (VaListMarker, INT64);
} else {
Value = BASE_ARG (BaseListMarker, INT64);
}
}
if ((Flags & PREFIX_BLANK) != 0) {
Prefix = ' ';
}
if ((Flags & PREFIX_SIGN) != 0) {
Prefix = '+';
}
if ((Flags & COMMA_TYPE) != 0) {
Comma = TRUE;
}
if ((Flags & RADIX_HEX) == 0) {
Radix = 10;
if (Comma) {
Flags &= ~((UINTN)PREFIX_ZERO);
Precision = 1;
}
if ((Value < 0) && ((Flags & UNSIGNED_TYPE) == 0)) {
Flags |= PREFIX_SIGN;
Prefix = '-';
Value = -Value;
} else if (((Flags & UNSIGNED_TYPE) != 0) && ((Flags & LONG_TYPE) == 0)) {
//
// 'd', 'u', 'x', and 'X' that are not preceded by 'l' or 'L' are assumed to be type "int".
// This assumption is made so the format string definition is compatible with the ANSI C
// Specification for formatted strings. It is recommended that the Base Types be used
// everywhere, but in this one case, compliance with ANSI C is more important, and
// provides an implementation that is compatible with that largest possible set of CPU
// architectures. This is why the type "unsigned int" is used in this one case.
//
Value = (unsigned int)Value;
}
} else {
Radix = 16;
Comma = FALSE;
if (((Flags & LONG_TYPE) == 0) && (Value < 0)) {
//
// 'd', 'u', 'x', and 'X' that are not preceded by 'l' or 'L' are assumed to be type "int".
// This assumption is made so the format string definition is compatible with the ANSI C
// Specification for formatted strings. It is recommended that the Base Types be used
// everywhere, but in this one case, compliance with ANSI C is more important, and
// provides an implementation that is compatible with that largest possible set of CPU
// architectures. This is why the type "unsigned int" is used in this one case.
//
Value = (unsigned int)Value;
}
}
//
// Convert Value to a reversed string
//
Count = InternalPrintLibValueToString (ValueBuffer, Value, Radix) - ValueBuffer;
if ((Value == 0) && (Precision == 0)) {
Count = 0;
}
ArgumentString = (CHAR8 *)ValueBuffer + Count;
Digits = Count % 3;
if (Digits != 0) {
Digits = 3 - Digits;
}
if (Comma && (Count != 0)) {
Count += ((Count - 1) / 3);
}
if (Prefix != 0) {
Count++;
Precision++;
}
Flags |= ARGUMENT_REVERSED;
ZeroPad = TRUE;
if ((Flags & PREFIX_ZERO) != 0) {
if ((Flags & LEFT_JUSTIFY) == 0) {
if ((Flags & PAD_TO_WIDTH) != 0) {
if ((Flags & PRECISION) == 0) {
Precision = Width;
}
}
}
}
break;
case 's':
case 'S':
Flags |= ARGUMENT_UNICODE;
//
// break skipped on purpose
//
case 'a':
if (BaseListMarker == NULL) {
ArgumentString = VA_ARG (VaListMarker, CHAR8 *);
} else {
ArgumentString = BASE_ARG (BaseListMarker, CHAR8 *);
}
if (ArgumentString == NULL) {
Flags &= (~(UINTN)ARGUMENT_UNICODE);
ArgumentString = "<null string>";
}
//
// Set the default precision for string to be zero if not specified.
//
if ((Flags & PRECISION) == 0) {
Precision = 0;
}
break;
case 'c':
if (BaseListMarker == NULL) {
Character = VA_ARG (VaListMarker, UINTN) & 0xffff;
} else {
Character = BASE_ARG (BaseListMarker, UINTN) & 0xffff;
}
ArgumentString = (CHAR8 *)&Character;
Flags |= ARGUMENT_UNICODE;
break;
case 'g':
if (BaseListMarker == NULL) {
TmpGuid = VA_ARG (VaListMarker, GUID *);
} else {
TmpGuid = BASE_ARG (BaseListMarker, GUID *);
}
if (TmpGuid == NULL) {
ArgumentString = "<null guid>";
} else {
GuidData1 = ReadUnaligned32 (&(TmpGuid->Data1));
GuidData2 = ReadUnaligned16 (&(TmpGuid->Data2));
GuidData3 = ReadUnaligned16 (&(TmpGuid->Data3));
InternalPrintLibSPrint (
ValueBuffer,
MAXIMUM_VALUE_CHARACTERS,
0,
"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
GuidData1,
GuidData2,
GuidData3,
TmpGuid->Data4[0],
TmpGuid->Data4[1],
TmpGuid->Data4[2],
TmpGuid->Data4[3],
TmpGuid->Data4[4],
TmpGuid->Data4[5],
TmpGuid->Data4[6],
TmpGuid->Data4[7]
);
ArgumentString = ValueBuffer;
}
break;
case 't':
if (BaseListMarker == NULL) {
TmpTime = VA_ARG (VaListMarker, TIME *);
} else {
TmpTime = BASE_ARG (BaseListMarker, TIME *);
}
if (TmpTime == NULL) {
ArgumentString = "<null time>";
} else {
InternalPrintLibSPrint (
ValueBuffer,
MAXIMUM_VALUE_CHARACTERS,
0,
"%02d/%02d/%04d %02d:%02d",
TmpTime->Month,
TmpTime->Day,
TmpTime->Year,
TmpTime->Hour,
TmpTime->Minute
);
ArgumentString = ValueBuffer;
}
break;
case 'r':
if (BaseListMarker == NULL) {
Status = VA_ARG (VaListMarker, RETURN_STATUS);
} else {
Status = BASE_ARG (BaseListMarker, RETURN_STATUS);
}
ArgumentString = ValueBuffer;
if (RETURN_ERROR (Status)) {
//
// Clear error bit
//
Index = Status & ~MAX_BIT;
if ((Index > 0) && (Index <= ERROR_STATUS_NUMBER)) {
ArgumentString = mStatusString[Index + WARNING_STATUS_NUMBER];
}
} else {
Index = Status;
if (Index <= WARNING_STATUS_NUMBER) {
ArgumentString = mStatusString[Index];
}
}
if (ArgumentString == ValueBuffer) {
InternalPrintLibSPrint ((CHAR8 *)ValueBuffer, MAXIMUM_VALUE_CHARACTERS, 0, "%08X", Status);
}
break;
case '\r':
Format += BytesPerFormatCharacter;
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
if (FormatCharacter == '\n') {
//
// Translate '\r\n' to '\r\n'
//
ArgumentString = "\r\n";
} else {
//
// Translate '\r' to '\r'
//
ArgumentString = "\r";
Format -= BytesPerFormatCharacter;
}
break;
case '\n':
//
// Translate '\n' to '\r\n' and '\n\r' to '\r\n'
//
ArgumentString = "\r\n";
Format += BytesPerFormatCharacter;
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
if (FormatCharacter != '\r') {
Format -= BytesPerFormatCharacter;
}
break;
case '%':
default:
//
// if the type is '%' or unknown, then print it to the screen
//
ArgumentString = (CHAR8 *)&FormatCharacter;
Flags |= ARGUMENT_UNICODE;
break;
}
break;
case '\r':
Format += BytesPerFormatCharacter;
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
if (FormatCharacter == '\n') {
//
// Translate '\r\n' to '\r\n'
//
ArgumentString = "\r\n";
} else {
//
// Translate '\r' to '\r'
//
ArgumentString = "\r";
Format -= BytesPerFormatCharacter;
}
break;
case '\n':
//
// Translate '\n' to '\r\n' and '\n\r' to '\r\n'
//
ArgumentString = "\r\n";
Format += BytesPerFormatCharacter;
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
if (FormatCharacter != '\r') {
Format -= BytesPerFormatCharacter;
}
break;
default:
ArgumentString = (CHAR8 *)&FormatCharacter;
Flags |= ARGUMENT_UNICODE;
break;
}
//
// Retrieve the ArgumentString attriubutes
//
if ((Flags & ARGUMENT_UNICODE) != 0) {
ArgumentMask = 0xffff;
BytesPerArgumentCharacter = 2;
} else {
ArgumentMask = 0xff;
BytesPerArgumentCharacter = 1;
}
if ((Flags & ARGUMENT_REVERSED) != 0) {
BytesPerArgumentCharacter = -BytesPerArgumentCharacter;
} else {
//
// Compute the number of characters in ArgumentString and store it in Count
// ArgumentString is either null-terminated, or it contains Precision characters
//
for (Count = 0;
(ArgumentString[Count * BytesPerArgumentCharacter] != '\0' ||
(BytesPerArgumentCharacter > 1 &&
ArgumentString[Count * BytesPerArgumentCharacter + 1] != '\0')) &&
(Count < Precision || ((Flags & PRECISION) == 0));
Count++)
{
ArgumentCharacter = ((ArgumentString[Count * BytesPerArgumentCharacter] & 0xff) | ((ArgumentString[Count * BytesPerArgumentCharacter + 1]) << 8)) & ArgumentMask;
if (ArgumentCharacter == 0) {
break;
}
}
}
if (Precision < Count) {
Precision = Count;
}
//
// Pad before the string
//
if ((Flags & (PAD_TO_WIDTH | LEFT_JUSTIFY)) == (PAD_TO_WIDTH)) {
LengthToReturn += ((Width - Precision) * BytesPerOutputCharacter);
if (((Flags & COUNT_ONLY_NO_PRINT) == 0) && (Buffer != NULL)) {
Buffer = InternalPrintLibFillBuffer (Buffer, EndBuffer, Width - Precision, ' ', BytesPerOutputCharacter);
}
}
if (ZeroPad) {
if (Prefix != 0) {
LengthToReturn += (1 * BytesPerOutputCharacter);
if (((Flags & COUNT_ONLY_NO_PRINT) == 0) && (Buffer != NULL)) {
Buffer = InternalPrintLibFillBuffer (Buffer, EndBuffer, 1, Prefix, BytesPerOutputCharacter);
}
}
LengthToReturn += ((Precision - Count) * BytesPerOutputCharacter);
if (((Flags & COUNT_ONLY_NO_PRINT) == 0) && (Buffer != NULL)) {
Buffer = InternalPrintLibFillBuffer (Buffer, EndBuffer, Precision - Count, '0', BytesPerOutputCharacter);
}
} else {
LengthToReturn += ((Precision - Count) * BytesPerOutputCharacter);
if (((Flags & COUNT_ONLY_NO_PRINT) == 0) && (Buffer != NULL)) {
Buffer = InternalPrintLibFillBuffer (Buffer, EndBuffer, Precision - Count, ' ', BytesPerOutputCharacter);
}
if (Prefix != 0) {
LengthToReturn += (1 * BytesPerOutputCharacter);
if (((Flags & COUNT_ONLY_NO_PRINT) == 0) && (Buffer != NULL)) {
Buffer = InternalPrintLibFillBuffer (Buffer, EndBuffer, 1, Prefix, BytesPerOutputCharacter);
}
}
}
//
// Output the Prefix character if it is present
//
Index = 0;
if (Prefix != 0) {
Index++;
}
//
// Copy the string into the output buffer performing the required type conversions
//
while (Index < Count &&
(ArgumentString[0] != '\0' ||
(BytesPerArgumentCharacter > 1 && ArgumentString[1] != '\0')))
{
ArgumentCharacter = ((*ArgumentString & 0xff) | (((UINT8)*(ArgumentString + 1)) << 8)) & ArgumentMask;
LengthToReturn += (1 * BytesPerOutputCharacter);
if (((Flags & COUNT_ONLY_NO_PRINT) == 0) && (Buffer != NULL)) {
Buffer = InternalPrintLibFillBuffer (Buffer, EndBuffer, 1, ArgumentCharacter, BytesPerOutputCharacter);
}
ArgumentString += BytesPerArgumentCharacter;
Index++;
if (Comma) {
Digits++;
if (Digits == 3) {
Digits = 0;
Index++;
if (Index < Count) {
LengthToReturn += (1 * BytesPerOutputCharacter);
if (((Flags & COUNT_ONLY_NO_PRINT) == 0) && (Buffer != NULL)) {
Buffer = InternalPrintLibFillBuffer (Buffer, EndBuffer, 1, ',', BytesPerOutputCharacter);
}
}
}
}
}
//
// Pad after the string
//
if ((Flags & (PAD_TO_WIDTH | LEFT_JUSTIFY)) == (PAD_TO_WIDTH | LEFT_JUSTIFY)) {
LengthToReturn += ((Width - Precision) * BytesPerOutputCharacter);
if (((Flags & COUNT_ONLY_NO_PRINT) == 0) && (Buffer != NULL)) {
Buffer = InternalPrintLibFillBuffer (Buffer, EndBuffer, Width - Precision, ' ', BytesPerOutputCharacter);
}
}
//
// Get the next character from the format string
//
Format += BytesPerFormatCharacter;
//
// Get the next character from the format string
//
FormatCharacter = ((*Format & 0xff) | ((BytesPerFormatCharacter == 1) ? 0 : (*(Format + 1) << 8))) & FormatMask;
}
if ((Flags & COUNT_ONLY_NO_PRINT) != 0) {
return (LengthToReturn / BytesPerOutputCharacter);
}
ASSERT (Buffer != NULL);
//
// Null terminate the Unicode or ASCII string
//
InternalPrintLibFillBuffer (Buffer, EndBuffer + BytesPerOutputCharacter, 1, 0, BytesPerOutputCharacter);
return ((Buffer - OriginalBuffer) / BytesPerOutputCharacter);
}
/**
Returns the number of characters that would be produced by if the formatted
output were produced not including the Null-terminator.
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If FormatString is NULL, then ASSERT() and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more
than PcdMaximumUnicodeStringLength Unicode characters not including the
Null-terminator, then ASSERT() and 0 is returned.
@param[in] FormatString A Null-terminated Unicode format string.
@param[in] Marker VA_LIST marker for the variable argument list.
@return The number of characters that would be produced, not including the
Null-terminator.
**/
UINTN
EFIAPI
SPrintLength (
IN CONST CHAR16 *FormatString,
IN VA_LIST Marker
)
{
ASSERT_UNICODE_BUFFER (FormatString);
return InternalPrintLibSPrintMarker (NULL, 0, FORMAT_UNICODE | OUTPUT_UNICODE | COUNT_ONLY_NO_PRINT, (CHAR8 *)FormatString, Marker, NULL);
}
/**
Returns the number of characters that would be produced by if the formatted
output were produced not including the Null-terminator.
If FormatString is NULL, then ASSERT() and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more
than PcdMaximumAsciiStringLength Ascii characters not including the
Null-terminator, then ASSERT() and 0 is returned.
@param[in] FormatString A Null-terminated ASCII format string.
@param[in] Marker VA_LIST marker for the variable argument list.
@return The number of characters that would be produced, not including the
Null-terminator.
**/
UINTN
EFIAPI
SPrintLengthAsciiFormat (
IN CONST CHAR8 *FormatString,
IN VA_LIST Marker
)
{
return InternalPrintLibSPrintMarker (NULL, 0, OUTPUT_UNICODE | COUNT_ONLY_NO_PRINT, (CHAR8 *)FormatString, Marker, NULL);
}
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