Emulating the unix LS command in C

Done most of the hard work, that is written most of it its just little errors that im having trouble with. I can't get it working within  the bash shell (linux) when trying to test it. If anyone could give me any pointers on where im going wrong be much grateful. (def.h holds other stuff needed for other emulated commands)

CODE FOR LS PLUS ITS HEADER FILE I"VE WRITTEN

#include "def.h"

int main ()
{
 
  DIR *dirp;
  struct stat sbuf;
  struct passwd *pass;
  struct group *grp;                       /* Define variables */
  struct dirent *direntp;
  char *cwd;
  char time[256];
  char flag[MAXNAME+1];
  flag[0]='\0';
 
  while(*lineptr==' ' || *lineptr == '\t')   /* Remove leading white space */
    ++lineptr;
  getname(flag);                           /* Call getname function */
  cwd = getcwd(NULL, 64);                  /* Get current working directory */
  if(cwd != '\0')
    {
      if ((dirp = opendir(cwd)) != NULL)     /* open current working dir */
      {
        while ((direntp = readdir(dirp)) != NULL)  /* Read all filenames */
          {
            stat(direntp->d_name, &sbuf);
            if(flag[0]=='-' && (flag[1]=='l' || flag[2]=='l')) {
            
            
            pass = getpwuid(sbuf.st_uid);  /* Get info for pwuid */
            
            
            grp = getgrgid(sbuf.st_gid);   /* Get group info */
            
            /* prints all the permissions for the files */
            
            /* if((sbuf.st_mode & S_IFDIR)==S_IFDIR) printf("d"); else printf("-"); */
            if((sbuf.st_mode & S_IRUSR)==S_IRUSR) printf("r"); else printf("-");
            if((sbuf.st_mode & S_IWUSR)==S_IWUSR) printf("w"); else printf("-");
            if((sbuf.st_mode & S_IXUSR)==S_IXUSR) printf("x"); else printf("-");
            if((sbuf.st_mode & S_IRGRP)==S_IRGRP) printf("r"); else printf("-");
            if((sbuf.st_mode & S_IWGRP)==S_IWGRP) printf("w"); else printf("-");
            if((sbuf.st_mode & S_IXGRP)==S_IXGRP) printf("x"); else printf("-");
            if((sbuf.st_mode & S_IROTH)==S_IROTH) printf("r"); else printf("-");
            if((sbuf.st_mode & S_IWOTH)==S_IWOTH) printf("w"); else printf("-");
            if((sbuf.st_mode & S_IXOTH)==S_IXOTH) printf("x"); else printf("-");
            
            
        /* Prints out user name and group */
            printf("%5d %-8s %-8s ", sbuf.st_nlink, pass->pw_name, grp->gr_name);
            
            /* Prints size of file */
            printf("%-7d", sbuf.st_size);
            /* Creates string */
            strcpy(time, ctime(&(sbuf.st_mtime)));
            time[16] = '\0';
            
            /* Prints time */
            printf(&time[4]);
            printf("  ");
            printf("%s\n", direntp->d_name);
            }
            
            /* Checks arguments */
            if(flag[0]=='-' && flag[1]=='a' && flag[2]!='l'){
            printf("%s  ", direntp->d_name);
            } else {
            
            if(*direntp->d_name != '.' && (flag[1]!='l' && flag[2]!='l'))
              printf("%s  ", direntp->d_name);  /* Print file name */
            }
          }
        closedir(dirp);
        printf("\n");
      } else
        printf("%s: Can't open %s\n", cwd);
    } else
      printf("Usage: %s filename\n", cwd);
 
  return 0;                                /* Return to main program */
} /* end shls */


heres def.h

#include <stdio.h>
#include <limits.h>
#include <signal.h>
#include <fcntl.h>
#include <dirent.h>
#include <time.h>
#include <pwd.h>
#include <grp.h>
/* #include <locale> */
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>    /* header file included to remove forkexec warning*/
#include <unistd.h>       /* header file included to remove forkexec warning*/
#include <sys/wait.h>     /* header file for declaration of wait*/
#include <ctype.h>
#include <string.h>
#include <sys/param.h>

#define TRUE 1
#define FALSE 0
#define OKAY 1
#define ERROR 0
#define MAXLINE 200                  /* Maximum length of input line */
#define MAXARG 20      /* Max number of args for each simple command */
#define PIPELINE 5    /* Max number of simple commands in a pipeline */
#define MAXNAME 100    /* Maximum length of i/o redirection filename */

char line[MAXLINE+1];                        /* User typed input line */
char *lineptr;                  /* Pointer to current position in line[] */
char avline[MAXLINE+1];               /* Argv strings taken from line[] */
char *avptr;                /* Pointer to current position in avline[] */
char infile[MAXNAME+1];                   /* Input redirection filename */
char outfile[MAXNAME+1];             /* Ouput redirection filename */
char pathname[MAXPATHLEN];

int backgnd;                   /* TRUE if & ends pipeline else FALSE */
int lastpid;               /* PID of last simple command in pipeline */
int append;            /* TRUE for append redirection (») else FALSE */

struct cmd
{
  char *av[MAXARG];
  int infd;
  int outfd;
} cmdlin[PIPELINE];          /* Argvs and fds, one per simple command */
/*
int main (void);*/            /*Prototypes to tell the compiler the return*/                  
void initcold (void);      /*type of the specified function, the prototypes*/
void initwarm (void);      /*also tell the compiler the number and type of the*/
int getline (void);            /*function's parameters*/
int parse (void);
void execute (int j);
void forkexec(struct cmd *ptr);
int check(char *ptr);
void command (int i);
void getname(char *name);
int convertSignal (char *sSig);
int getwd();
int builtInCommands();
int shcd();
int shpwd();
int shkill();
int shls();
int shps();
int argCount();