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Allocate buffer for support/font/lang files properly (#894)

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Merged, thank you!
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Danny Tsai 2025-10-18 00:58:29 +08:00 committed by GitHub
parent e83f58e841
commit 320a3fe0ee
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3 changed files with 26 additions and 17 deletions
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12
arm9/source/filesys/support.c
View File

@ -7,19 +7,25 @@
#define SUPPORT_DIR_PATHS "V:", "0:/gm9", "1:/gm9"
bool CheckSupportFile(const char* fname)
bool CheckSupportFile(const char* fname, size_t* fsize)
{
// try VRAM0 first
if (FindVTarFileInfo(fname, NULL))
u64 tar_fsize;
if (FindVTarFileInfo(fname, &tar_fsize)) {
if (fsize) *fsize = tar_fsize; // truncated but should be fine for vtar
return true;
}
// try support file paths
const char* base_paths[] = { SUPPORT_FILE_PATHS };
for (u32 i = 0; i < countof(base_paths); i++) {
char path[256];
FILINFO fno;
snprintf(path, sizeof(path), "%s/%s", base_paths[i], fname);
if (fvx_stat(path, NULL) == FR_OK)
if (fvx_stat(path, &fno) == FR_OK) {
if (fsize) *fsize = fno.fsize;
return true;
}
}
return false;

2
arm9/source/filesys/support.h
View File

@ -8,7 +8,7 @@
#define LUASCRIPTS_DIR "luascripts"
#define PAYLOADS_DIR "payloads"
bool CheckSupportFile(const char* fname);
bool CheckSupportFile(const char* fname, size_t* fsize);
size_t LoadSupportFile(const char* fname, void* buffer, size_t max_len);
bool SaveSupportFile(const char* fname, void* buffer, size_t len);
bool SetAsSupportFile(const char* fname, const char* source);

29
arm9/source/godmode.c
View File

@ -2164,18 +2164,20 @@ u32 FileHandlerMenu(char* current_path, u32* cursor, u32* scroll, PaneData** pan
return 0;
}
else if (user_select == font) { // set font
u8* font = (u8*) malloc(0x20000); // arbitrary, should be enough by far
size_t fsize = FileGetSize(file_path);
u8* font = (u8*) malloc(fsize);
if (!font) return 1;
u32 font_size = FileGetData(file_path, font, 0x20000, 0);
u32 font_size = FileGetData(file_path, font, fsize, 0);
if (font_size) SetFont(font, font_size);
ClearScreenF(true, true, COLOR_STD_BG);
free(font);
return 0;
}
else if (user_select == translation) { // set translation
u8* translation = (u8*) malloc(0x20000); // arbitrary, should be enough by far
size_t fsize = FileGetSize(file_path);
u8* translation = (u8*) malloc(fsize);
if (!translation) return 1;
u32 translation_size = FileGetData(file_path, translation, 0x20000, 0);
u32 translation_size = FileGetData(file_path, translation, fsize, 0);
if (translation_size) SetLanguage(translation, translation_size);
ClearScreenF(true, true, COLOR_STD_BG);
free(translation);
@ -2442,17 +2444,18 @@ u32 GodMode(int entrypoint) {
SetScreenBrightness(brightness);
// custom font handling
if (CheckSupportFile("font.frf")) {
u8* riff = (u8*) malloc(0x20000); // arbitrary, should be enough by far
size_t support_size;
if (CheckSupportFile("font.frf", &support_size)) {
u8* riff = (u8*) malloc(support_size);
if (riff) {
u32 riff_size = LoadSupportFile("font.frf", riff, 0x20000);
u32 riff_size = LoadSupportFile("font.frf", riff, support_size);
if (riff_size) SetFont(riff, riff_size);
free(riff);
}
} else if (CheckSupportFile("font.pbm")) {
u8* pbm = (u8*) malloc(0x10000); // arbitrary, should be enough by far
} else if (CheckSupportFile("font.pbm", &support_size)) {
u8* pbm = (u8*) malloc(support_size);
if (pbm) {
u32 pbm_size = LoadSupportFile("font.pbm", pbm, 0x10000);
u32 pbm_size = LoadSupportFile("font.pbm", pbm, support_size);
if (pbm_size) SetFont(pbm, pbm_size);
free(pbm);
}
@ -2460,10 +2463,10 @@ u32 GodMode(int entrypoint) {
// language handling
bool language_loaded = false;
if (CheckSupportFile("language.trf")) {
char* translation = (char*) malloc(0x20000); // arbitrary, should be enough by far
if (CheckSupportFile("language.trf", &support_size)) {
char* translation = (char*) malloc(support_size);
if (translation) {
u32 translation_size = LoadSupportFile("language.trf", translation, 0x20000);
u32 translation_size = LoadSupportFile("language.trf", translation, support_size);
if (translation_size) language_loaded = SetLanguage(translation, translation_size);
free(translation);
}