/** @file
Common basic Library Functions
Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#ifdef __GNUC__
#include <unistd.h>
#else
#include <direct.h>
#endif
#include "CommonLib.h"
#include "EfiUtilityMsgs.h"
VOID
PeiZeroMem (
IN VOID *Buffer,
IN UINTN Size
)
/*++
Routine Description:
Set Buffer to zero for Size bytes.
Arguments:
Buffer - Memory to set.
Size - Number of bytes to set
Returns:
None
--*/
{
INT8 *Ptr;
Ptr = Buffer;
while (Size--) {
*(Ptr++) = 0;
}
}
VOID
PeiCopyMem (
IN VOID *Destination,
IN VOID *Source,
IN UINTN Length
)
/*++
Routine Description:
Copy Length bytes from Source to Destination.
Arguments:
Destination - Target of copy
Source - Place to copy from
Length - Number of bytes to copy
Returns:
None
--*/
{
CHAR8 *Destination8;
CHAR8 *Source8;
Destination8 = Destination;
Source8 = Source;
while (Length--) {
*(Destination8++) = *(Source8++);
}
}
VOID
ZeroMem (
IN VOID *Buffer,
IN UINTN Size
)
{
PeiZeroMem (Buffer, Size);
}
VOID
CopyMem (
IN VOID *Destination,
IN VOID *Source,
IN UINTN Length
)
{
PeiCopyMem (Destination, Source, Length);
}
INTN
CompareGuid (
IN EFI_GUID *Guid1,
IN EFI_GUID *Guid2
)
/*++
Routine Description:
Compares to GUIDs
Arguments:
Guid1 - guid to compare
Guid2 - guid to compare
Returns:
= 0 if Guid1 == Guid2
!= 0 if Guid1 != Guid2
--*/
{
INT32 *g1;
INT32 *g2;
INT32 r;
//
// Compare 32 bits at a time
//
g1 = (INT32 *) Guid1;
g2 = (INT32 *) Guid2;
r = g1[0] - g2[0];
r |= g1[1] - g2[1];
r |= g1[2] - g2[2];
r |= g1[3] - g2[3];
return r;
}
EFI_STATUS
GetFileImage (
IN CHAR8 *InputFileName,
OUT CHAR8 **InputFileImage,
OUT UINT32 *BytesRead
)
/*++
Routine Description:
This function opens a file and reads it into a memory buffer. The function
will allocate the memory buffer and returns the size of the buffer.
Arguments:
InputFileName The name of the file to read.
InputFileImage A pointer to the memory buffer.
BytesRead The size of the memory buffer.
Returns:
EFI_SUCCESS The function completed successfully.
EFI_INVALID_PARAMETER One of the input parameters was invalid.
EFI_ABORTED An error occurred.
EFI_OUT_OF_RESOURCES No resource to complete operations.
--*/
{
FILE *InputFile;
UINT32 FileSize;
//
// Verify input parameters.
//
if (InputFileName == NULL || strlen (InputFileName) == 0 || InputFileImage == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// Open the file and copy contents into a memory buffer.
//
//
// Open the file
//
InputFile = fopen (LongFilePath (InputFileName), "rb");
if (InputFile == NULL) {
Error (NULL, 0, 0001, "Error opening the input file", InputFileName);
return EFI_ABORTED;
}
//
// Go to the end so that we can determine the file size
//
if (fseek (InputFile, 0, SEEK_END)) {
Error (NULL, 0, 0004, "Error reading the input file", InputFileName);
fclose (InputFile);
return EFI_ABORTED;
}
//
// Get the file size
//
FileSize = ftell (InputFile);
if (FileSize == -1) {
Error (NULL, 0, 0003, "Error parsing the input file", InputFileName);
fclose (InputFile);
return EFI_ABORTED;
}
//
// Allocate a buffer
//
*InputFileImage = malloc (FileSize);
if (*InputFileImage == NULL) {
fclose (InputFile);
return EFI_OUT_OF_RESOURCES;
}
//
// Reset to the beginning of the file
//
if (fseek (InputFile, 0, SEEK_SET)) {
Error (NULL, 0, 0004, "Error reading the input file", InputFileName);
fclose (InputFile);
free (*InputFileImage);
*InputFileImage = NULL;
return EFI_ABORTED;
}
//
// Read all of the file contents.
//
*BytesRead = fread (*InputFileImage, sizeof (UINT8), FileSize, InputFile);
if (*BytesRead != sizeof (UINT8) * FileSize) {
Error (NULL, 0, 0004, "Error reading the input file", InputFileName);
fclose (InputFile);
free (*InputFileImage);
*InputFileImage = NULL;
return EFI_ABORTED;
}
//
// Close the file
//
fclose (InputFile);
return EFI_SUCCESS;
}
EFI_STATUS
PutFileImage (
IN CHAR8 *OutputFileName,
IN CHAR8 *OutputFileImage,
IN UINT32 BytesToWrite
)
/*++
Routine Description:
This function opens a file and writes OutputFileImage into the file.
Arguments:
OutputFileName The name of the file to write.
OutputFileImage A pointer to the memory buffer.
BytesToWrite The size of the memory buffer.
Returns:
EFI_SUCCESS The function completed successfully.
EFI_INVALID_PARAMETER One of the input parameters was invalid.
EFI_ABORTED An error occurred.
EFI_OUT_OF_RESOURCES No resource to complete operations.
--*/
{
FILE *OutputFile;
UINT32 BytesWrote;
//
// Verify input parameters.
//
if (OutputFileName == NULL || strlen (OutputFileName) == 0 || OutputFileImage == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// Open the file and copy contents into a memory buffer.
//
//
// Open the file
//
OutputFile = fopen (LongFilePath (OutputFileName), "wb");
if (OutputFile == NULL) {
Error (NULL, 0, 0001, "Error opening the output file", OutputFileName);
return EFI_ABORTED;
}
//
// Write all of the file contents.
//
BytesWrote = fwrite (OutputFileImage, sizeof (UINT8), BytesToWrite, OutputFile);
if (BytesWrote != sizeof (UINT8) * BytesToWrite) {
Error (NULL, 0, 0002, "Error writing the output file", OutputFileName);
fclose (OutputFile);
return EFI_ABORTED;
}
//
// Close the file
//
fclose (OutputFile);
return EFI_SUCCESS;
}
UINT8
CalculateChecksum8 (
IN UINT8 *Buffer,
IN UINTN Size
)
/*++
Routine Description:
This function calculates the value needed for a valid UINT8 checksum
Arguments:
Buffer Pointer to buffer containing byte data of component.
Size Size of the buffer
Returns:
The 8 bit checksum value needed.
--*/
{
return (UINT8) (0x100 - CalculateSum8 (Buffer, Size));
}
UINT8
CalculateSum8 (
IN UINT8 *Buffer,
IN UINTN Size
)
/*++
Routine Description::
This function calculates the UINT8 sum for the requested region.
Arguments:
Buffer Pointer to buffer containing byte data of component.
Size Size of the buffer
Returns:
The 8 bit checksum value needed.
--*/
{
UINTN Index;
UINT8 Sum;
Sum = 0;
//
// Perform the byte sum for buffer
//
for (Index = 0; Index < Size; Index++) {
Sum = (UINT8) (Sum + Buffer[Index]);
}
return Sum;
}
UINT16
CalculateChecksum16 (
IN UINT16 *Buffer,
IN UINTN Size
)
/*++
Routine Description::
This function calculates the value needed for a valid UINT16 checksum
Arguments:
Buffer Pointer to buffer containing byte data of component.
Size Size of the buffer
Returns:
The 16 bit checksum value needed.
--*/
{
return (UINT16) (0x10000 - CalculateSum16 (Buffer, Size));
}
UINT16
CalculateSum16 (
IN UINT16 *Buffer,
IN UINTN Size
)
/*++
Routine Description:
This function calculates the UINT16 sum for the requested region.
Arguments:
Buffer Pointer to buffer containing byte data of component.
Size Size of the buffer
Returns:
The 16 bit checksum
--*/
{
UINTN Index;
UINT16 Sum;
Sum = 0;
//
// Perform the word sum for buffer
//
for (Index = 0; Index < Size; Index++) {
Sum = (UINT16) (Sum + Buffer[Index]);
}
return (UINT16) Sum;
}
EFI_STATUS
PrintGuid (
IN EFI_GUID *Guid
)
/*++
Routine Description:
This function prints a GUID to STDOUT.
Arguments:
Guid Pointer to a GUID to print.
Returns:
EFI_SUCCESS The GUID was printed.
EFI_INVALID_PARAMETER The input was NULL.
--*/
{
if (Guid == NULL) {
Error (NULL, 0, 2000, "Invalid parameter", "PrintGuidToBuffer() called with a NULL value");
return EFI_INVALID_PARAMETER;
}
printf (
"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x\n",
(unsigned) Guid->Data1,
Guid->Data2,
Guid->Data3,
Guid->Data4[0],
Guid->Data4[1],
Guid->Data4[2],
Guid->Data4[3],
Guid->Data4[4],
Guid->Data4[5],
Guid->Data4[6],
Guid->Data4[7]
);
return EFI_SUCCESS;
}
EFI_STATUS
PrintGuidToBuffer (
IN EFI_GUID *Guid,
IN OUT UINT8 *Buffer,
IN UINT32 BufferLen,
IN BOOLEAN Uppercase
)
/*++
Routine Description:
This function prints a GUID to a buffer
Arguments:
Guid - Pointer to a GUID to print.
Buffer - Pointer to a user-provided buffer to print to
BufferLen - Size of the Buffer
Uppercase - If use upper case.
Returns:
EFI_SUCCESS The GUID was printed.
EFI_INVALID_PARAMETER The input was NULL.
EFI_BUFFER_TOO_SMALL The input buffer was not big enough
--*/
{
if (Guid == NULL) {
Error (NULL, 0, 2000, "Invalid parameter", "PrintGuidToBuffer() called with a NULL value");
return EFI_INVALID_PARAMETER;
}
if (BufferLen < PRINTED_GUID_BUFFER_SIZE) {
Error (NULL, 0, 2000, "Invalid parameter", "PrintGuidToBuffer() called with invalid buffer size");
return EFI_BUFFER_TOO_SMALL;
}
if (Uppercase) {
sprintf (
(CHAR8 *)Buffer,
"%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X",
(unsigned) Guid->Data1,
Guid->Data2,
Guid->Data3,
Guid->Data4[0],
Guid->Data4[1],
Guid->Data4[2],
Guid->Data4[3],
Guid->Data4[4],
Guid->Data4[5],
Guid->Data4[6],
Guid->Data4[7]
);
} else {
sprintf (
(CHAR8 *)Buffer,
"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
(unsigned) Guid->Data1,
Guid->Data2,
Guid->Data3,
Guid->Data4[0],
Guid->Data4[1],
Guid->Data4[2],
Guid->Data4[3],
Guid->Data4[4],
Guid->Data4[5],
Guid->Data4[6],
Guid->Data4[7]
);
}
return EFI_SUCCESS;
}
#ifdef __GNUC__
size_t _filelength(int fd)
{
struct stat stat_buf;
fstat(fd, &stat_buf);
return stat_buf.st_size;
}
#ifndef __CYGWIN__
char *strlwr(char *s)
{
char *p = s;
for(;*s;s++) {
*s = tolower(*s);
}
return p;
}
#endif
#endif
#define WINDOWS_EXTENSION_PATH "\\\\?\\"
#define WINDOWS_UNC_EXTENSION_PATH "\\\\?\\UNC"
//
// Global data to store full file path. It is not required to be free.
//
CHAR8 mCommonLibFullPath[MAX_LONG_FILE_PATH];
CHAR8 *
LongFilePath (
IN CHAR8 *FileName
)
/*++
Routine Description:
Convert FileName to the long file path, which can support larger than 260 length.
Arguments:
FileName - FileName.
Returns:
LongFilePath A pointer to the converted long file path.
--*/
{
#ifdef __GNUC__
//
// __GNUC__ may not be good way to differentiate unix and windows. Need more investigation here.
// unix has no limitation on file path. Just return FileName.
//
return FileName;
#else
CHAR8 *RootPath;
CHAR8 *PathPointer;
CHAR8 *NextPointer;
PathPointer = (CHAR8 *) FileName;
if (FileName != NULL) {
//
// Add the extension string first to support long file path.
//
mCommonLibFullPath[0] = 0;
strcpy (mCommonLibFullPath, WINDOWS_EXTENSION_PATH);
if (strlen (FileName) > 1 && FileName[0] == '\\' && FileName[1] == '\\') {
//
// network path like \\server\share to \\?\UNC\server\share
//
strcpy (mCommonLibFullPath, WINDOWS_UNC_EXTENSION_PATH);
FileName ++;
} else if (strlen (FileName) < 3 || FileName[1] != ':' || (FileName[2] != '\\' && FileName[2] != '/')) {
//
// Relative file path. Convert it to absolute path.
//
RootPath = getcwd (NULL, 0);
if (RootPath != NULL) {
strcat (mCommonLibFullPath, RootPath);
if (FileName[0] != '\\' && FileName[0] != '/') {
//
// Attach directory separator
//
strcat (mCommonLibFullPath, "\\");
}
free (RootPath);
}
}
//
// Construct the full file path
//
strcat (mCommonLibFullPath, FileName);
//
// Convert directory separator '/' to '\\'
//
PathPointer = (CHAR8 *) mCommonLibFullPath;
do {
if (*PathPointer == '/') {
*PathPointer = '\\';
}
} while (*PathPointer ++ != '\0');
//
// Convert ":\\\\" to ":\\", because it doesn't work with WINDOWS_EXTENSION_PATH.
//
if ((PathPointer = strstr (mCommonLibFullPath, ":\\\\")) != NULL) {
*(PathPointer + 2) = '\0';
strcat (mCommonLibFullPath, PathPointer + 3);
}
//
// Convert ".\\" to "", because it doesn't work with WINDOWS_EXTENSION_PATH.
//
while ((PathPointer = strstr (mCommonLibFullPath, ".\\")) != NULL) {
*PathPointer = '\0';
strcat (mCommonLibFullPath, PathPointer + 2);
}
//
// Convert "\\.\\" to "\\", because it doesn't work with WINDOWS_EXTENSION_PATH.
//
while ((PathPointer = strstr (mCommonLibFullPath, "\\.\\")) != NULL) {
*PathPointer = '\0';
strcat (mCommonLibFullPath, PathPointer + 2);
}
//
// Convert "\\..\\" to last directory, because it doesn't work with WINDOWS_EXTENSION_PATH.
//
while ((PathPointer = strstr (mCommonLibFullPath, "\\..\\")) != NULL) {
NextPointer = PathPointer + 3;
do {
PathPointer --;
} while (PathPointer > mCommonLibFullPath && *PathPointer != ':' && *PathPointer != '\\');
if (*PathPointer == '\\') {
//
// Skip one directory
//
*PathPointer = '\0';
strcat (mCommonLibFullPath, NextPointer);
} else {
//
// No directory is found. Just break.
//
break;
}
}
PathPointer = mCommonLibFullPath;
}
return PathPointer;
#endif
}