87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
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#include <dirent.h>
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#include <cerrno>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <libreborn/libreborn.h>
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#include "bootstrap.h"
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// Get All Mods In Folder
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static void load(std::string &ld_preload, const std::string &folder) {
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// Open Folder
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DIR *dp = opendir(folder.c_str());
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if (dp != nullptr) {
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// Loop Through Folder
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while (true) {
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errno = 0;
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dirent *entry = readdir(dp);
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if (entry != nullptr) {
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// Check If File Is Regular
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if (entry->d_type == DT_REG) {
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// Get Full Name
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std::string name = folder + entry->d_name;
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// Check If File Is Accessible
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int result = access(name.c_str(), R_OK);
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if (result == 0) {
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// Add To LD_PRELOAD
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ld_preload += name + ":";
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} else if (result == -1 && errno != 0) {
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// Fail
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WARN("Unable To Access: %s: %s", name.c_str(), strerror(errno));
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errno = 0;
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}
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}
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} else if (errno != 0) {
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// Error Reading Contents Of Folder
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ERR("Error Reading Directory: %s: %s", folder.c_str(), strerror(errno));
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} else {
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// Done!
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break;
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}
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}
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// Close Folder
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closedir(dp);
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} else if (errno == ENOENT) {
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// Folder Doesn't Exist
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} else {
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// Unable To Open Folder
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ERR("Error Opening Directory: %s: %s", folder.c_str(), strerror(errno));
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}
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}
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// Bootstrap Mods
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#define SUBDIRECTORY_FOR_MODS "/mods/"
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void bootstrap_mods(const std::string &binary_directory) {
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// Prepare
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std::string preload = "";
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// ~/.minecraft-pi/mods
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{
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// Get Mods Folder
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std::string mods_folder = std::string(getenv("HOME")) + HOME_SUBDIRECTORY_FOR_GAME_DATA SUBDIRECTORY_FOR_MODS;
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// Load Mods From ./mods
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load(preload, mods_folder);
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}
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// Built-In Mods
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{
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// Get Mods Folder
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std::string mods_folder = binary_directory + SUBDIRECTORY_FOR_MODS;
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// Load Mods From ./mods
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load(preload, mods_folder);
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}
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// Add LD_PRELOAD
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{
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const char *value = getenv("LD_PRELOAD");
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if (value != nullptr && strlen(value) > 0) {
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preload += value;
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}
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}
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// Set
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set_and_print_env(MCPI_LD_VARIABLE_PREFIX "LD_PRELOAD", preload.c_str());
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}
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