ft_ls/src/ft_ls.c
Gregory Tertyshny f5860b88e1 broke everything
2017-04-01 21:16:41 +03:00

356 lines
No EOL
7.9 KiB
C

#include "ft_ls.h"
int is_hidden(char *path)
{
char *begin;
char *end;
begin = path;
end = path + ft_strlen(path) - 1;
if (begin != end)
{
while (end != begin && *end != '/')
end--;
if (end == begin)
{
if (*end == '.')
return (1);
}
else if (*(end + 1) == '.')
return (1);
}
else if (*end == '.')
return (1);
return (0);
}
char *get_full_path(char *path, char *dir_ent_name)
{
char *tmp;
char *tmp1;
if (dir_ent_name && path)
{
if (path[ft_strlen(path) - 1] == '/')
{
if (*dir_ent_name == '/')
tmp = ft_strjoin(path, dir_ent_name + 1);
else
tmp = ft_strjoin(path, dir_ent_name);
}
else
{
tmp1 = ft_strjoin(path, "/");
tmp = ft_strjoin(tmp1, dir_ent_name);
free(tmp1);
}
return (tmp);
}
else
return (ft_strdup(dir_ent_name));
}
char get_file_type(t_dir_elm *d_elm)
{
char ch;
ch = '-';
if (S_ISDIR(d_elm->stat_copy->st_mode))
ch = 'd';
if (S_ISLNK(d_elm->stat_copy->st_mode))
ch = 'l';
if (S_ISFIFO(d_elm->stat_copy->st_mode))
ch = 'p';
if (S_ISSOCK(d_elm->stat_copy->st_mode))
ch = 's';
if (S_ISBLK(d_elm->stat_copy->st_mode))
ch = 'b';
if (S_ISCHR(d_elm->stat_copy->st_mode))
ch = 'c';
return (ch);
}
void get_file_permissions(char *attr_str, t_dir_elm *d_elm)
{
struct stat *st;
char r;
char w;
char x;
char f;
r = 'r';
w = 'w';
x = 'x';
f = '-';
st = d_elm->stat_copy;
attr_str[0] = (st->st_mode & S_IRUSR) ? r : f;
attr_str[1] = (st->st_mode & S_IWUSR) ? w : f;
attr_str[2] = (st->st_mode & S_IXUSR) ? x : f;
attr_str[3] = (st->st_mode & S_IRGRP) ? r : f;
attr_str[4] = (st->st_mode & S_IWGRP) ? w : f;
attr_str[5] = (st->st_mode & S_IXGRP) ? x : f;
attr_str[6] = (st->st_mode & S_IROTH) ? r : f;
attr_str[7] = (st->st_mode & S_IWOTH) ? w : f;
attr_str[8] = (st->st_mode & S_IXOTH) ? x : f;
}
char *get_attr(t_dir_elm *d_elm)
{
char *attr_str;
attr_str = ft_memalloc(sizeof(11));
attr_str[10] = '\0';
attr_str[0] = get_file_type(d_elm);
get_file_permissions(attr_str + 1, d_elm);
return (attr_str);
}
char *get_time(t_dir_elm *d_elm)
{
char *time;
char *time_tmp;
time_tmp = ctime(&(d_elm->stat_copy->st_mtimespec.tv_sec));
time_tmp[16] = 0;
time = ft_strdup(time_tmp + 4);
return (time);
}
void set_columns_padd(t_dir_elm *de)
{
de->cols_padd.link_col = ft_num_len(de->stat_copy->st_nlink);
de->cols_padd.name_col = (int)ft_strlen(de->u_name);
de->cols_padd.group_col = (int)ft_strlen(de->g_name);
de->cols_padd.size_col = ft_num_len(de->stat_copy->st_size);
}
void get_info_from_stat(t_dir_elm *dir_elm)
{
dir_elm->attr_str = get_attr(dir_elm);
dir_elm->u_name = ft_strdup(getpwuid(dir_elm->stat_copy->st_uid)->pw_name);
dir_elm->g_name = ft_strdup(getgrgid(dir_elm->stat_copy->st_gid)->gr_name);
dir_elm->m_time = get_time(dir_elm);
}
void to_null(t_dir_elm *de)
{
de->stat_copy = NULL;
de->link_name = NULL;
de->attr_str = NULL;
de->g_name = NULL;
de->u_name = NULL;
de->m_time = NULL;
de->elm_name = NULL;
}
t_list *read_stat(char *full_path, char *filename, t_ft_ls *s_ls)
{
t_dir_elm de;
char *tmp_file_path;
t_list *node;
to_null(&de);
de.elm_name = ft_strdup(filename);
tmp_file_path = get_full_path(full_path, filename);
de.stat_copy = malloc(sizeof(struct stat));
lstat(tmp_file_path, de.stat_copy);
free(tmp_file_path);
if (s_ls->flgs->l)
{
if (S_ISLNK(de.stat_copy->st_mode))
{
de.link_name = ft_strnew(PATH_MAX);
if (readlink(tmp_file_path, de.link_name, PATH_MAX) == -1)
put_error(0);
}
else
de.link_name = NULL;
get_info_from_stat(&de);
set_columns_padd(&de);
}
node = ft_lstnew(&de, sizeof(t_dir_elm));
return (node);
}
t_list *init_content_node(char *full_path, char *filename, t_ft_ls *s_ls)
{
if (s_ls->flgs->a)
return (read_stat(full_path, filename, s_ls));
else if (!is_hidden(filename) || ft_strcmp(filename, "./") == 0)
return (read_stat(full_path, filename, s_ls));
return (NULL);
}
t_list *find_dirs(char *full_path, t_ft_ls *s_ls, t_list *curr_dir_content)
{
char *full_path_with_file;
t_dir_elm *dir_elm;
t_list *dirs;
dirs = NULL;
while (curr_dir_content)
{
dir_elm = (t_dir_elm *)curr_dir_content->content;
full_path_with_file = get_full_path(full_path, dir_elm->elm_name);
if ((S_ISDIR(dir_elm->stat_copy->st_mode)) && (ft_strcmp(dir_elm->elm_name, ".") != 0) && (ft_strcmp(dir_elm->elm_name, "..") != 0))
{
if (s_ls->flgs->a)
ft_lstadd(&dirs, ft_lstnew(dir_elm, sizeof(t_dir_elm)));
else if (!is_hidden(dir_elm->elm_name))
ft_lstadd(&dirs, ft_lstnew(dir_elm, sizeof(t_dir_elm)));
}
curr_dir_content = curr_dir_content->next;
free(full_path_with_file);
}
return (dirs);
}
void get_padding_and_blocks(t_ft_ls *s_ls, t_dir_elm *d_elem)
{
if (d_elem && s_ls && s_ls->flgs->l)
{
if (d_elem->cols_padd.link_col > s_ls->max_cols_padd->link_col)
s_ls->max_cols_padd->link_col = d_elem->cols_padd.link_col;
if (d_elem->cols_padd.name_col > s_ls->max_cols_padd->name_col)
s_ls->max_cols_padd->name_col = d_elem->cols_padd.name_col;
if (d_elem->cols_padd.group_col > s_ls->max_cols_padd->group_col)
s_ls->max_cols_padd->group_col = d_elem->cols_padd.group_col;
if (d_elem->cols_padd.size_col > s_ls->max_cols_padd->size_col)
s_ls->max_cols_padd->size_col = d_elem->cols_padd.size_col;
if (d_elem->stat_copy)
{
if (s_ls->flgs->a)
s_ls->dir_content_total += d_elem->stat_copy->st_blocks * 2;
else if (!is_hidden(d_elem->elm_name))
s_ls->dir_content_total += d_elem->stat_copy->st_blocks * 2;
}
}
}
void extract_content(char *full_path, t_ft_ls *s_ls, t_list **dir_content)
{
DIR *dp;
struct dirent *de;
t_list *lst_elm;
if ((dp = opendir(full_path)))
{
while ((de = readdir(dp)))
{
if ((lst_elm = init_content_node(full_path, de->d_name, s_ls)))
{
get_padding_and_blocks(s_ls, lst_elm->content);
ft_lstadd(dir_content, lst_elm);
}
}
closedir(dp);
}
}
void reset_s_ls(t_ft_ls *s_ls)
{
s_ls->max_cols_padd->group_col = 0;
s_ls->max_cols_padd->name_col = 0;
s_ls->max_cols_padd->link_col = 0;
s_ls->max_cols_padd->size_col = 0;
s_ls->dir_content_total = 0;
}
void print_content(t_ft_ls *s_ls, t_list *curr_dir_content, char *cur_path)
{
if ((!s_ls->one_dir && !s_ls->no_ops) || s_ls->flgs->R)
print_full_path(s_ls, cur_path);
output(s_ls, curr_dir_content);
}
t_list *operands_parse(t_list *ops, t_ft_ls *s_ls)
{
t_list *tmp_rnr;
t_list *root;
t_list *lst_elm;
root = NULL;
tmp_rnr = ops;
while (tmp_rnr)
{
if (ft_strcmp(tmp_rnr->content, ".") == 0)
{
free(tmp_rnr->content);
tmp_rnr->content = ft_strdup("./");
}
if ((lst_elm = init_content_node(NULL, tmp_rnr->content, s_ls)))
{
get_padding_and_blocks(s_ls, lst_elm->content);
ft_lstadd(&root, lst_elm);
}
tmp_rnr = tmp_rnr->next;
}
return (root);
}
void free_struct_lst(t_list *curr_cont)
{
t_dir_elm *tmp;
t_list *tmp1;
while (curr_cont)
{
tmp1 = curr_cont->next;
if (curr_cont->content)
{
tmp = (t_dir_elm *)curr_cont->content;
free(tmp->attr_str);
free(tmp->link_name);
free(tmp->elm_name);
free(tmp->g_name);
free(tmp->u_name);
free(tmp->m_time);
free(tmp->stat_copy);
free(tmp);
}
free(curr_cont);
curr_cont = tmp1;
}
}
void ft_ls_fil(t_ft_ls *s_ls, t_list *root)
{
sort_content(&root, s_ls->flgs);
print_content(s_ls, root, NULL);
free_struct_lst(root);
}
void ft_ls_dir(t_ft_ls *s_ls, t_list *root, char *parent_dir)
{
char *cur_path;
t_list *curr_dir_content;
t_list *fuckin_head;
fuckin_head = root;
curr_dir_content = NULL;
sort_content(&root, s_ls->flgs);
reset_s_ls(s_ls);
while (root)
{
cur_path = get_full_path(parent_dir, ((t_dir_elm *)root->content)->elm_name);
extract_content(cur_path, s_ls, &curr_dir_content);
if (curr_dir_content)
{
sort_content(&curr_dir_content, s_ls->flgs);
print_content(s_ls, curr_dir_content, cur_path);
if (s_ls->flgs->R)
{
ft_ls_dir(s_ls, find_dirs(cur_path, s_ls, curr_dir_content), cur_path);
free_struct_lst(curr_dir_content);
}
}
free(cur_path);
root = root->next;
}
free_struct_lst(fuckin_head);
}