main.h

#ifndef MAIN_H
#define MAIN_H

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <fcntl.h>
#include <dirent.h>
#include <limits.h>
#include <errno.h>
#include <signal.h>
#include <sys/stat.h>
#include <stdarg.h>


#define BUFSIZE 1024
#define DELIM " \t\r\n\a"
#define PATH getenv("PATH")
#define PWD getenv("PWD")
#define BIN "/bin"

extern char **environ;

void interactive(void);
char *_get_cmd_(void);

char **getArgs(char *line);
int _exec_(char **args);

int _str_contains(char **needle, char **haystack);
void shellNotInteractive(int ac, char **av);

char *joinPath(char *dir, char *file);
int _cmd_isvalid(char *cmd);

int _strlen(char *string);
int _strcmp(const char *s1, const char *s2);

int *_count(char **array);
char *_strtok(char *str, const char *delim);

char *eliminateWhitespaces(char *token);
void *_realloc(void *buffer, size_t size);

void printenv(void);
int contains_builtin(char **arg);

int path_exists(char *path);
void cd(char **args);

char *determine_path(char *argv);
char *getarg(char **args);

char **returnenv(void);
void free_buffers(int n, ...);

#endif