M7350/system/core/fastboot/util_windows.c
2024-09-09 08:52:07 +00:00

128 lines
4.1 KiB
C

/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <limits.h>
#include <windows.h>
void get_my_path(char exe[PATH_MAX])
{
char* r;
GetModuleFileName( NULL, exe, PATH_MAX-1 );
exe[PATH_MAX-1] = 0;
r = strrchr( exe, '\\' );
if (r)
*r = 0;
}
void *load_file(const char *fn, unsigned *_sz)
{
HANDLE file;
char *data;
DWORD file_size;
file = CreateFile( fn,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
0,
NULL );
if (file == INVALID_HANDLE_VALUE) {
fprintf(stderr, "load_file: file open failed (rc=%ld)\n", GetLastError());
return NULL;
}
file_size = GetFileSize( file, NULL );
data = NULL;
if (file_size > 0) {
data = (char*) malloc( file_size );
if (data == NULL) {
fprintf(stderr, "load_file: could not allocate %ld bytes\n", file_size );
file_size = 0;
} else {
DWORD out_bytes;
if ( !ReadFile( file, data, file_size, &out_bytes, NULL ) ||
out_bytes != file_size )
{
int retry_failed = 0;
if (GetLastError() == ERROR_NO_SYSTEM_RESOURCES) {
/* Attempt to read file in 10MB chunks */
DWORD bytes_to_read = file_size;
DWORD bytes_read = 0;
DWORD block_size = 10*1024*1024;
SetFilePointer( file, 0, NULL, FILE_BEGIN );
while (bytes_to_read > 0) {
if (block_size > bytes_to_read) {
block_size = bytes_to_read;
}
if (!ReadFile( file, data+bytes_read,
block_size, &out_bytes, NULL ) ||
out_bytes != block_size) {
retry_failed = 1;
break;
}
bytes_read += block_size;
bytes_to_read -= block_size;
}
} else {
retry_failed = 1;
}
if (retry_failed) {
fprintf(stderr, "load_file: could not read %ld bytes from '%s'\n", file_size, fn);
free(data);
data = NULL;
file_size = 0;
}
}
}
} else {
fprintf(stderr, "load_file: file empty or negative size %ld\n", file_size);
}
CloseHandle( file );
*_sz = (unsigned) file_size;
return data;
}