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