simple_shell/shell_head.h at master · ethanpasta/simple_shell · GitHub

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#ifndef SHELL_HEAD
#define SHELL_HEAD
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#include <sys/wait.h>
#include <limits.h>

/**
 * struct list_s - structure for nodes in a linked list
 * @str: string in node
 * @len: length of str
 * @next: pointer to next node in list
 */
typedef struct list_s
{
	char *str;
	unsigned int len;
	struct list_s *next;
} list_t;

/**
 * struct built_info - info structure for built-ins commands
 * @args_l: linked list of arguments
 * @args: array of arguments
 * @env: linked list of environment variables
 * @env_s: string of environment variables
 * @last_return: return value of last child process
 * @line_num: current line number of shell
 * @filename: name of executable shell
 */
typedef struct built_info
{
	list_t *args_l;
	char **args;
	list_t *env;
	char **env_s;
	int last_return;
	int line_num;
	char *filename;
} built_info_t;

/**
 * struct built - structure for built ins and their functions
 * @built_in: built-in command string
 * @f: function pointer to each built-in function
 */
typedef struct built
{
	char *built_in;
	void (*f)(built_info_t *);
} built_t;

/* Functions in main.c */
void free_stuff(built_info_t *);
void arg_error(char **);

/* Functions in string_f.c */
int _strlen(char *);
int _strcmp(char *, char *);
int _puts(char *, int);
char **strtow(char *, char);
char *_strcpy(char *, char *);

/* Functions in string_f2.c */
char *_strdup(char *);
void _memcpy(char *, char *, unsigned int);

/* Functions in string_split.c */
int word_count(char *, char);
char *str_concat(char *, char *);

/* Functions in handle_path.c */
char *find_env_value(char **, char *);
char *check_file_withP(char **, char *);
int current_dir(char *);

/* Functions in built_f.c */
int do_built_in(built_t *, built_info_t *);
void print_env(built_info_t *);
void set_env(built_info_t *);
void unset_env(built_info_t *);
void change_dir(built_info_t *);
void exit_shell(built_info_t *);

/* Functions in help_main.c */
char **check_create_args(char **, size_t *, built_info_t *);
void child_proc(built_t *, pid_t *, built_info_t *);
void error_msg(built_info_t);
void free_array(char **);

/* Functions in int_string.c */
int _atoi(char *);
char *_itoa(size_t);
int check_digits(char *);

/* Functions in list_array.c */
list_t *array_to_list(char **);
char **list_to_array(list_t *);

/* Functions in list_f.c */
int add_node(list_t **, char *);
void free_list(list_t *);
size_t list_len(list_t *);
void print_list(list_t *);

/* Functions in list_f2.c */
int remove_node_env(list_t **, char *);
int remove_node(list_t **, unsigned int);

/* Functions in modify_env.c */
void help_setenv(list_t **, char *, char *);
void help_unsetenv(list_t **, char *);

/* Functions in built_f2.c */
void change_dir(built_info_t *);
void change_dir_error(built_info_t);

/* Functions in var_replace.c */
void var_replace(built_info_t *);

#endif