ft_ls/ft_ls.h at master · lgutter/ft_ls · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
/* ************************************************************************** */
/*                                                                            */
/*                                                        ::::::::            */
/*   ft_ls.h                                            :+:    :+:            */
/*                                                     +:+                    */
/*   By: ivan-tey <ivan-tey@student.codam.nl>         +#+                     */
/*                                                   +#+                      */
/*   Created: 2019/12/11 11:33:09 by ivan-tey       #+#    #+#                */
/*   Updated: 2020/01/03 15:36:20 by lgutter       ########   odam.nl         */
/*                                                                            */
/* ************************************************************************** */

#ifndef FT_LS_H
# define FT_LS_H

# include <sys/stat.h>
# include <sys/types.h>
# include <sys/xattr.h>
# include <dirent.h>
# include <pwd.h>
# include <grp.h>
# include <time.h>
# include <limits.h>
# include <errno.h>
# include <string.h>

# include "ft_printf.h"

/*
**	enumerations for the options
*/
enum					e_options
{
	e_opt_l = 1 << 0,
	e_opt_R = 1 << 1,
	e_opt_a = 1 << 2,
	e_opt_r = 1 << 3,
	e_opt_t = 1 << 4,
	e_args = 1 << 5,
};

/*
**	typedef of an unsigned long for the options,
**	this is where the above listen enums are stored.
*/
typedef unsigned long	t_options;

/*
**	struct with info of the file:
**		stats: struct as returned by the function lstat
**		path: complete path of the file as given as argument
**		name_pointer: pointer to the position in path where the filename starts
**		mode: st_mode converted to string
**		links: st_nlink converted to string
**		size: st_size converted to string
**		month: the month extracted from st_mtimespec converted to string
**		date: the date(day) extracted from st_mtimespec converted to string
**		tiye: the time/year extracted from st_mtimespec converted to string
**		u_name: name of the user as given by getpwuid
**		g_name: name of the group as given by getgrgid
**		link_path: the path contained in the symlink as given by readlink
**		next: a pointer to the next element in the list of info structs
*/
typedef struct			s_file_info
{
	struct stat			lstats;
	char				path[PATH_MAX + 1];
	char				*name_pointer;
	char				mode[10 + 1];
	char				links[8 + 1];
	char				size[32 + 1];
	char				month[3 + 1];
	char				date[2 + 1];
	char				tiye[5 + 1];
	char				u_name[NAME_MAX + 1];
	char				g_name[NAME_MAX + 1];
	char				link_path[PATH_MAX + 1];
	struct s_file_info	*next;
}						t_file_info;

/*
**	Struct that holds the minimum field width of every field in the long output.
**	To clarify, a list of every field:
**		mode: the permissions of the file
**		links: the amount of links to the file
**		user: the owner of the file
**		group: the group of the file
**		size: the size of the file in bytes
**		month: the month in which the file was last modified
**		date: the date on which the file was last modified
**		tiye: the time or year when the file was last modified
*/
typedef struct			s_field_width
{
	size_t				links;
	size_t				user;
	size_t				group;
	size_t				size;
	size_t				date;
	size_t				blocks;
}						t_width;

/*
**	Global variable for exit code
*/

extern int	g_exit_code;

/*
**	Core functions
*/

int						main(int argc, char **argv);
int						ft_ls(int filecount,\
								char **filenames, t_options options);

/*
** Find functions
*/

int						ft_find_options(int argc,\
										char **argv, t_options *options);

/*
** List functions
*/

t_file_info				*ft_stats_to_list(char *filename,\
								t_file_info **list_start, t_options options);
void					ft_sort_list(t_file_info **list_start,\
										t_options options);
void					ft_lex_sort(t_file_info **list_start);
void					ft_lex_sort_r(t_file_info **list_start);
void					ft_time_sort(t_file_info **list_start);
void					ft_time_sort_r(t_file_info **list_start);
int						ft_rec_dir(char dirname[PATH_MAX + 1],\
									t_options options);
void					ft_conv_info_to_str(t_file_info *l_item);
void					ft_free_list(t_file_info **list_start);

/*
**	Utility functions
*/

char					*ft_find_name_pointer(char path[PATH_MAX + 1]);
void					ft_print_files_info(t_file_info *list_start,\
											t_options options);
int						ft_print_error(int errnumber, char *errstr);
void					ft_print_opt_error(char option);
void					ft_print_usage(void);
void					*ft_error_free(void **memory);
size_t					ft_strlonger(size_t other_len, char *str);
int						ft_is_dir(char *filename, t_options options);
int						ft_path_expand(char dest[PATH_MAX + 1],\
						char path[PATH_MAX + 1], char *addition,\
										t_options options);
int						ft_check_need_stats(t_options options, char firstchar,\
											char type);

#endif