linux steam Civilzation 5 wrapper. (fix for bink-video issue and multi-core support)

Civ5XP.c

#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <unistd.h>

char *rBin = "Civ5XP.run";
char curDir[PATH_MAX];
char civDir[PATH_MAX];

bool _logging;
bool _recover;
bool _debug;

int hasSuffix(char *string , char *suffix, bool recover) {
    char suff[PATH_MAX];
    strcpy(suff, suffix);
    string = strrchr(string, '.');

    if (recover == true)
        strcat(suff, "_bak");

    if(string != NULL)
        return(strcmp(string, suff));

    return(-1);
}

void fixMov(char *path, bool recover) {
    DIR *d = opendir(path);
    if(d==NULL) return;
    struct dirent *dir;
    while ((dir = readdir(d)) != NULL) {
        if(dir->d_type != DT_DIR) { // file
            if (hasSuffix(dir->d_name, ".mov", recover) == 0) {
                char message[10] = "disabled";
                char srcFile[PATH_MAX];
                char dstFile[PATH_MAX];

                sprintf(srcFile, "%s/%s", path, dir->d_name);
                strcpy(dstFile, srcFile);
                strcat(dstFile, "_bak");

                if (recover == true) {
                    strcpy(message, "recovered");
                    dstFile[strlen(srcFile)-8] = 0;
                }

                // renaming files
                if (rename(srcFile, dstFile) == 0 && (_debug || _logging)) {
                    printf("%s (%s)\n", dir->d_name, message);
                }
            }
        } else if (dir->d_type == DT_DIR && strcmp(dir->d_name, ".") != 0 && strcmp(dir->d_name, "..") != 0) { // dir
            char d_path[PATH_MAX];
            sprintf(d_path, "%s/%s", path, dir->d_name);
            fixMov(d_path, recover); // recursion
        }
    }
    closedir(d);
}

void createAppId(char *dir) {
    char file[PATH_MAX];
    strcpy(file, dir);
    strcat(file, "/steam_appid.txt");

    FILE *fp;
    fp = fopen(file, "rb+");
    if(fp == NULL) {
        fp = fopen(file, "wb");
    }

    fprintf(fp, "8930"); // saving appid
    fclose(fp);
}

int main(int argc, char **argv) {
    char runBin[PATH_MAX];
    char runCmd[PATH_MAX];

    // parse arguments
    if (argc > 1) {
        for(int i = 1; i < argc; i++) {
            if (strchr(argv[i], 'r') != NULL) {
                _recover = true;
            } 
            if (strchr(argv[i], 'd') != NULL) {
                _debug = true;
            } 
            if (strchr(argv[i], 'l') != NULL) {
                _logging = true;
            }
        }
    }

    // getting home (setting default)
    strcpy(civDir, getenv("HOME"));
    strcat(civDir, "/.local/share/Steam/steamapps/common/Sid Meier's Civilization V");

    // setting run command
    if (sysconf(_SC_NPROCESSORS_ONLN) > 8)
        strcpy(runCmd, "numactl --physcpubind=+0-7");
    sprintf(runCmd, "%s ./%s", runCmd, rBin);

    // getting pwd
    strcpy(curDir, getenv("PWD"));
    strcpy(runBin, curDir);
    strcat(runBin, "/Civ5XP.run");
    if (access(runBin, X_OK) != 0) {
        // seems to be the civDirectory
        strcpy(civDir, curDir);
        strcpy(runBin, curDir);
        strcat(runBin, "/Civ5XP.run");
        if (access(runBin, X_OK) != 0) {
            printf("File not executable: '%s'\n", runBin);
            return(1);
        } 
        
        if (_debug || _logging)
            printf("Using autodetected directory: '%s'\n", civDir);
    }

    // info
    if (_debug || _logging) {
        printf("directory.....: '%s'\n", civDir);
        printf("binary........: '%s'\n", rBin);
        printf("recover.......: %s\n", _recover?"true":"false");
        printf("run command...: '%s'\n", runCmd);
    }

    // fixing intro-movies
    fixMov(civDir, false);

    // fixing AppId (for standalone/LAN mode)
    createAppId(civDir);

    // real execution of original binary
    int ret = system(runCmd);

    // if recovery
    if (_recover) {
        fixMov(civDir, true);
    }

    return(ret);
}