Moj Eles

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <pwd.h>
#include <grp.h>
#include <time.h>
//Moja kolejka
struct s_MyDeque{
    struct s_MyDeque *next;
    struct s_MyDeque *prev;
    char *dirPath;
};

struct s_MyDeque *first;
struct s_MyDeque *last;
//Variables
DIR*            pDIR;
struct dirent*  pDirEnt;
struct stat st;
struct passwd*  pwd;
struct group*   grp;
char*           presentDir = ".";
char*           fullDir = NULL;
char*           useDate;
int             aFlag = 0;
int             RFlag = 0;
int             lFlag = 0;
int             mFlag = 0;
int             AFlag = 0;
int             GFlag = 0;
int             firstDir = 0;
//Functions
void process_record_long(char* targetDir){
    pDIR = opendir(targetDir);
    pDirEnt = readdir(pDIR);
    if(RFlag)
        printf("In dir: %s\n",targetDir);
    while(pDirEnt != NULL){
        if(aFlag == 1 || pDirEnt->d_name[0] != '.'){
            if(firstDir && mFlag){
                printf(", ");
            }
            firstDir = 1;
            asprintf(&fullDir,"%s/%s",targetDir,pDirEnt->d_name);
            lstat(fullDir, &st);
            pwd = getpwuid(st.st_uid);
            grp = getgrgid(st.st_gid);
            if(lFlag){
                printf((S_ISDIR(st.st_mode)) ? "d" : "-");
                printf((st.st_mode & S_IRUSR) ? "r" : "-");
                printf((st.st_mode & S_IWUSR) ? "w" : "-");
                printf((st.st_mode & S_IXUSR) ? "x" : "-");
                printf((st.st_mode & S_IRGRP) ? "r" : "-");
                printf((st.st_mode & S_IWGRP) ? "w" : "-");
                printf((st.st_mode & S_IXGRP) ? "x" : "-");
                printf((st.st_mode & S_IROTH) ? "r" : "-");
                printf((st.st_mode & S_IWOTH) ? "w" : "-");
                printf((st.st_mode & S_IXOTH) ? "x" : "-");
                printf(" %d", (int)st.st_nlink);
                printf(" %s", pwd->pw_name);
                if(!GFlag)
                     printf(" %s", grp->gr_name);
                printf(" %d", (int)st.st_size);
                useDate = ctime(&st.st_mtime);
                memmove (useDate,useDate+4,12);
                useDate[12] = NULL;
                printf( " %s ", useDate);
            }
            printf("%s", pDirEnt->d_name);
            if(lFlag)
                printf("\n");
            else if(mFlag){ }
            else
                printf(" ");
            if(RFlag){
                if(S_ISDIR(st.st_mode)){
                    last->next = (struct s_MyDeque*)malloc(sizeof(struct s_MyDeque));
                    last->next->dirPath = fullDir;
                    last = last->next;
                    last->next = NULL;
                }
            }
        }
        pDirEnt=readdir(pDIR);
    }
    first = first->next;
    /*if(first->prev != NULL){
        free(first->prev);
        first->prev = NULL;
    }*/
    if(first != NULL)
        process_record_long(first->dirPath);
    if(!lFlag)
        printf("\n");
}

int main(int argc, char *argv[])
{
    int option;
    int index;

    while((option = getopt(argc, argv, "GlaRm")) != -1)
    {
        switch(option)
        {
        case 'l':
            lFlag = 1;
            break;
        case 'a':
            aFlag = 1;
            break;
        case 'R':
            RFlag = 1;
            break;
        case 'm':
            mFlag = 1;
            break;
        case 'G':
            GFlag = 1;
            break;
        case '?':
            printf("%c", optopt);
            break;
        }
    }
    first = (struct s_MyDeque*)malloc(sizeof *first);
    first->next = NULL;
    first->prev = NULL;
    last = first;

    for(index = optind; index < argc; index++)
    {
        presentDir = argv[index];
    }
    first->dirPath = presentDir;
    process_record_long(first->dirPath);
    return 0;
}