Age of Empires 1 and 2 drs file unpacker

drs.c

// http://wiki.xentax.com/index.php/GRAF:Age_Of_Empires_DRSArchive
// tcc drs.c && ./drs "C:\Program Files (x86)\Microsoft Games\Age of Empires\data\sounds.drs" sounds

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>

typedef struct DRS_TABLE {
    uint32_t type;
    uint32_t offset;
    uint32_t count;
} DRS_TABLE;

typedef struct DRS_FILE {
    uint32_t id;
    uint32_t offset;
    uint32_t size;
} DRS_FILE;

int main(int argc, char *argv[]) {
    printf("PlaatSoft DRS Explorer\n");
    if (argc >= 2) {
        FILE *file = fopen(argv[1], "rb");

        uint32_t number_of_tables;
        fseek(file, 56, SEEK_CUR);
        fread(&number_of_tables, sizeof(uint32_t), 1, file);
        fseek(file, 4, SEEK_CUR);

        for (int i = 0; i < number_of_tables; i++) {
            DRS_TABLE drs_table;
            char *file_extension;

            fread(&drs_table, sizeof(DRS_TABLE), 1, file);

            if (drs_table.type == 0x62696E61) {
                printf("-------- BIN --------\n");
                file_extension = "bin";
            }
            if (drs_table.type == 0x73687020) {
                printf("-------- SHP --------\n");
                file_extension = "shp";
            }
            if (drs_table.type == 0x736c7020) {
                printf("-------- SLP --------\n");
                file_extension = "slp";
            }
            if (drs_table.type == 0x77617620) {
                printf("-------- WAV --------\n");
                file_extension = "wav";
            }

            int current_position = ftell(file);
            fseek(file, drs_table.offset, SEEK_SET);
            for (int j = 0; j < drs_table.count; j++) {
                DRS_FILE drs_file;
                fread(&drs_file, sizeof(DRS_FILE), 1, file);

                printf("%d.%s - %d bytes\n", drs_file.id, file_extension, drs_file.size);

                if (argc >= 3) {
                    char path_buffer[255];
                    sprintf(path_buffer, "%s/%d.%s", argv[2], drs_file.id, file_extension);
                    FILE *out_file = fopen(path_buffer, "wb");

                    char *file_buffer = malloc(drs_file.size);
                    int current_position2 = ftell(file);
                    fseek(file, drs_file.offset, SEEK_SET);
                    fread(file_buffer, 1, drs_file.size, file);
                    fseek(file, current_position2, SEEK_SET);

                    fwrite(file_buffer, 1, drs_file.size, out_file);
                    free(file_buffer);
                    fclose(out_file);
                }
            }
            fseek(file, current_position, SEEK_SET);
        }

        fclose(file);
    }
    return EXIT_SUCCESS;
}