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/*
 * ファイル名を受け取ってファイルサイズ分のメモリを動的確保し、
 * ファイルから読み込んだデータのバッファのポインタを返す関数
 * sizeポインタがNULL出ない場合はsizeにはファイルサイズが入ります。
 * 返されたバッファは必ずfreeで開放することを忘れないこと
 */
void* ReadFile(const char *file, int *size)
{
	int file_size, fh;
	void *buffer = NULL;
 
	file_size = FileRead_size(file);
	if (file_size == -1) { /* ファイルサイズ取得失敗 */
		printf("Cannot get file size: %s\n", file);
		return NULL;
	}
 
	fh = FileRead_open(file, FALSE);
	if (fh == 0) { /* ファイルオープン失敗 */
		printf("Cannot open file: %s\n", file);
		return NULL;
	}
 
	/*  ファイルサイズ分のメモリを動的確保*/
	buffer = malloc(file_size);
	if (buffer == NULL) { /* メモリ確保失敗 */
		printf("Cannot allocate memory: %s %dbytes\n", file, file_size);
		FileRead_close(fh);
		return NULL;
	}
 
	/* ファイルの データを一括で読み込む*/
	if (FileRead_read(buffer, file_size, fh) != file_size) { /* ファイル読み込み失敗*/
		printf("Cannot read file: %s\n", file);
		free(buffer);
		FileRead_close(fh);
		return NULL;
	}
 
	if (size != NULL) {
		*size = file_size;
	}
 
	FileRead_close(fh);
	return buffer;
}
 
/*
 * ShowSaveDialogの拡張版
 * SaveDetailまではShowSaveDialogと同じ
 * icon0以降は使いたいファイルパス(使わないならNULL)を指定すればOK
 */
int ShowSaveDialogEx(
	int mode,
	void *buf, unsigned int size, 
	const char *GameName,
	const char *GameTitle, const char *SaveTitle, const char *SaveDetail,
	const char *icon0, const char *icon1, const char *pic1, const char *snd0
)
{
	void *icon0_buffer = NULL, *icon1_buffer = NULL, *pic1_buffer = NULL;
	void *snd0_buffer = NULL;
	int file_size, result;
 
	/* NULLでないなら各リソースを設定 */
	file_size = 0;
	if (icon0 != NULL) {
		icon0_buffer = ReadFile(icon0, &file_size);
	}
	SetSaveResource(DXP_SAVE_RESOURCE_ICON0, icon0_buffer, file_size);
 
	file_size = 0;
	if (icon1 != NULL) {
		icon1_buffer = ReadFile(icon1, &file_size);
	}
	SetSaveResource(DXP_SAVE_RESOURCE_ICON1, icon1_buffer, file_size);	
 
	file_size = 0;
	if (pic1 != NULL) {
		pic1_buffer = ReadFile(pic1, &file_size);
	}
	SetSaveResource(DXP_SAVE_RESOURCE_PIC1, pic1_buffer, file_size);	
 
	file_size = 0;
	if (snd0 != NULL) {
		snd0_buffer = ReadFile(snd0, &file_size);
	}
	SetSaveResource(DXP_SAVE_RESOURCE_SND0, snd0_buffer, file_size);		
 
	result = ShowSaveDialog(
		mode,
		buf, size,
		GameName,
		GameTitle, SaveTitle, SaveDetail
	);
 
	/* きちんとメモリを開放する */
	free(icon0_buffer);
	free(icon1_buffer);
	free(pic1_buffer);
	free(snd0_buffer);
 
	return result;
}
 
 

prog.c: In function ‘ReadFile’:
prog.c:10:17: error: ‘NULL’ undeclared (first use in this function)
  void *buffer = NULL;
                 ^
prog.c:10:17: note: each undeclared identifier is reported only once for each function it appears in
prog.c:12:2: warning: implicit declaration of function ‘FileRead_size’ [-Wimplicit-function-declaration]
  file_size = FileRead_size(file);
  ^
prog.c:14:3: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration]
   printf("Cannot get file size: %s\n", file);
   ^
prog.c:14:3: warning: incompatible implicit declaration of built-in function ‘printf’ [enabled by default]
prog.c:18:2: warning: implicit declaration of function ‘FileRead_open’ [-Wimplicit-function-declaration]
  fh = FileRead_open(file, FALSE);
  ^
prog.c:18:27: error: ‘FALSE’ undeclared (first use in this function)
  fh = FileRead_open(file, FALSE);
                           ^
prog.c:20:3: warning: incompatible implicit declaration of built-in function ‘printf’ [enabled by default]
   printf("Cannot open file: %s\n", file);
   ^
prog.c:25:2: warning: implicit declaration of function ‘malloc’ [-Wimplicit-function-declaration]
  buffer = malloc(file_size);
  ^
prog.c:25:11: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default]
  buffer = malloc(file_size);
           ^
prog.c:27:3: warning: incompatible implicit declaration of built-in function ‘printf’ [enabled by default]
   printf("Cannot allocate memory: %s %ubytes\n", file, file_size);
   ^
prog.c:28:3: warning: implicit declaration of function ‘FileRead_close’ [-Wimplicit-function-declaration]
   FileRead_close(fh);
   ^
prog.c:33:2: warning: implicit declaration of function ‘FileRead_read’ [-Wimplicit-function-declaration]
  if (FileRead_read(buffer, file_size, fh) != file_size) { /* ファイル読み込み失敗*/
  ^
prog.c:34:3: warning: incompatible implicit declaration of built-in function ‘printf’ [enabled by default]
   printf("Cannot read file: %s\n", file);
   ^
prog.c:35:3: warning: implicit declaration of function ‘free’ [-Wimplicit-function-declaration]
   free(buffer);
   ^
prog.c:35:3: warning: incompatible implicit declaration of built-in function ‘free’ [enabled by default]
prog.c: In function ‘ShowSaveDialogEx’:
prog.c:61:23: error: ‘NULL’ undeclared (first use in this function)
  void *icon0_buffer = NULL, *icon1_buffer = NULL, *pic1_buffer = NULL;
                       ^
prog.c:68:3: warning: implicit declaration of function ‘SetSaveResource’ [-Wimplicit-function-declaration]
   SetSaveResource(DXP_SAVE_RESOURCE_ICON0, icon0_buffer, file_size);
   ^
prog.c:68:19: error: ‘DXP_SAVE_RESOURCE_ICON0’ undeclared (first use in this function)
   SetSaveResource(DXP_SAVE_RESOURCE_ICON0, icon0_buffer, file_size);
                   ^
prog.c:72:19: error: ‘DXP_SAVE_RESOURCE_ICON1’ undeclared (first use in this function)
   SetSaveResource(DXP_SAVE_RESOURCE_ICON1, icon1_buffer, file_size);
                   ^
prog.c:76:19: error: ‘DXP_SAVE_RESOURCE_PIC1’ undeclared (first use in this function)
   SetSaveResource(DXP_SAVE_RESOURCE_PIC1, pic1_buffer, file_size);
                   ^
prog.c:80:19: error: ‘DXP_SAVE_RESOURCE_SND0’ undeclared (first use in this function)
   SetSaveResource(DXP_SAVE_RESOURCE_SND0, snd0_buffer, file_size);
                   ^
prog.c:83:2: warning: implicit declaration of function ‘ShowSaveDialog’ [-Wimplicit-function-declaration]
  result = ShowSaveDialog(
  ^
prog.c:91:2: warning: incompatible implicit declaration of built-in function ‘free’ [enabled by default]
  free(icon0_buffer);
  ^
prog.c:96:2: warning: ‘return’ with a value, in function returning void [enabled by default]
  return result;
  ^

Standard output is empty