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/** @file
Header file for helper functions useful for parsing INF files.
Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _EFI_PARSE_INF_H
#define _EFI_PARSE_INF_H
#include <stdio.h>
#include <stdlib.h>
#include <Common/UefiBaseTypes.h>
#include <MemoryFile.h>
#ifdef __cplusplus
extern "C" {
#endif
//
// Functions declarations
//
CHAR8 *
ReadLine (
IN MEMORY_FILE *InputFile,
IN OUT CHAR8 *InputBuffer,
IN UINTN MaxLength
)
;
/*++
Routine Description:
This function reads a line, stripping any comments.
The function reads a string from the input stream argument and stores it in
the input string. ReadLine reads characters from the current file position
to and including the first newline character, to the end of the stream, or
until the number of characters read is equal to MaxLength - 1, whichever
comes first. The newline character, if read, is replaced with a \0.
Arguments:
InputFile Memory file image.
InputBuffer Buffer to read into, must be MaxLength size.
MaxLength The maximum size of the input buffer.
Returns:
NULL if error or EOF
InputBuffer otherwise
--*/
BOOLEAN
FindSection (
IN MEMORY_FILE *InputFile,
IN CHAR8 *Section
)
;
/*++
Routine Description:
This function parses a file from the beginning to find a section.
The section string may be anywhere within a line.
Arguments:
InputFile Memory file image.
Section Section to search for
Returns:
FALSE if error or EOF
TRUE if section found
--*/
EFI_STATUS
FindToken (
IN MEMORY_FILE *InputFile,
IN CHAR8 *Section,
IN CHAR8 *Token,
IN UINTN Instance,
OUT CHAR8 *Value
)
;
/*++
Routine Description:
Finds a token value given the section and token to search for.
Arguments:
InputFile Memory file image.
Section The section to search for, a string within [].
Token The token to search for, e.g. EFI_PEIM_RECOVERY, followed by an = in the INF file.
Instance The instance of the token to search for. Zero is the first instance.
Value The string that holds the value following the =. Must be MAX_LONG_FILE_PATH in size.
Returns:
EFI_SUCCESS Value found.
EFI_ABORTED Format error detected in INF file.
EFI_INVALID_PARAMETER Input argument was null.
EFI_LOAD_ERROR Error reading from the file.
EFI_NOT_FOUND Section/Token/Value not found.
--*/
EFI_STATUS
StringToGuid (
IN CHAR8 *AsciiGuidBuffer,
OUT EFI_GUID *GuidBuffer
)
;
/*++
Routine Description:
Converts a string to an EFI_GUID. The string must be in the
xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx format.
Arguments:
GuidBuffer - pointer to destination Guid
AsciiGuidBuffer - pointer to ascii string
Returns:
EFI_ABORTED Could not convert the string
EFI_SUCCESS The string was successfully converted
--*/
EFI_STATUS
AsciiStringToUint64 (
IN CONST CHAR8 *AsciiString,
IN BOOLEAN IsHex,
OUT UINT64 *ReturnValue
)
;
/*++
Routine Description:
Converts a null terminated ascii string that represents a number into a
UINT64 value. A hex number may be preceded by a 0x, but may not be
succeeded by an h. A number without 0x or 0X is considered to be base 10
unless the IsHex input is true.
Arguments:
AsciiString The string to convert.
IsHex Force the string to be treated as a hex number.
ReturnValue The return value.
Returns:
EFI_SUCCESS Number successfully converted.
EFI_ABORTED Invalid character encountered.
--*/
CHAR8 *
ReadLineInStream (
IN FILE *InputFile,
IN OUT CHAR8 *InputBuffer
)
;
/*++
Routine Description:
This function reads a line, stripping any comments.
Arguments:
InputFile Stream pointer.
InputBuffer Buffer to read into, must be MAX_LONG_FILE_PATH size.
Returns:
NULL if error or EOF
InputBuffer otherwise
--*/
BOOLEAN
FindSectionInStream (
IN FILE *InputFile,
IN CHAR8 *Section
)
;
/*++
Routine Description:
This function parses a stream file from the beginning to find a section.
The section string may be anywhere within a line.
Arguments:
InputFile Stream pointer.
Section Section to search for
Returns:
FALSE if error or EOF
TRUE if section found
--*/
#ifdef __cplusplus
}
#endif
#endif
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