65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
#include <libreborn/libreborn.h>
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#include <symbols/minecraft.h>
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#include "home.h"
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#include "../init/init.h"
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// Minecraft Pi User Data Root
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#ifndef MCPI_SERVER_MODE
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// Store Game Data In "~/.minecraft-pi" Instead Of "~/.minecraft" To Avoid Conflicts
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#define NEW_PATH "/.minecraft-pi"
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#else
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// Store Game Data In Launch Directory
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#define NEW_PATH ""
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// Store Launch Directory
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__attribute__((constructor)) static char *get_launch_directory() {
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static char *launch_directory = NULL;
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if (launch_directory == NULL) {
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launch_directory = getcwd(NULL, 0);
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}
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return launch_directory;
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}
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__attribute__((destructor)) static void free_launch_directory() {
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free(get_launch_directory());
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}
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// Pretend $HOME Is Launch Directory
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HOOK(getenv, char *, (const char *name)) {
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if (strcmp(name, "HOME") == 0) {
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return get_launch_directory();
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} else {
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ensure_getenv();
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return (*real_getenv)(name);
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}
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}
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#endif
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// Get MCPI Home Directory
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char *home_get() {
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static char *dir = NULL;
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// Load
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if (dir == NULL) {
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safe_asprintf(&dir, "%s" NEW_PATH, getenv("HOME"));
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}
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// Return
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return dir;
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}
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// Free
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__attribute__((destructor)) static void _free_home() {
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free(home_get());
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}
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// Init
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void init_home() {
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// Store Data In ~/.minecraft-pi Instead Of ~/.minecraft
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patch_address((void *) default_path, (void *) NEW_PATH);
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// Change Directory To Binary Directory Manually
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unsigned char nop_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
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patch((void *) 0xe0ac, nop_patch);
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char *binary_directory = get_binary_directory();
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chdir(binary_directory);
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free(binary_directory);
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}
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