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/*
* Copyright 2004-2005 Timo Hirvonen
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include <tabexp_file.h>
#include <tabexp.h>
#include <load_dir.h>
#include <misc.h>
#include <xmalloc.h>
#include <xstrjoin.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <pwd.h>
#include <dirent.h>
static char *get_home(const char *user)
{
struct passwd *passwd;
char *home;
int len;
if (user[0] == 0) {
passwd = getpwuid(getuid());
} else {
passwd = getpwnam(user);
}
if (passwd == NULL)
return NULL;
len = strlen(passwd->pw_dir);
home = xnew(char, len + 2);
memcpy(home, passwd->pw_dir, len);
home[len] = '/';
home[len + 1] = 0;
return home;
}
static char *get_full_dir_name(const char *dir)
{
char *full;
if (dir[0] == 0) {
full = xstrdup("./");
} else if (dir[0] == '~') {
char *first_slash, *tmp, *home;
first_slash = strchr(dir, '/');
tmp = xstrndup(dir, first_slash - dir);
home = get_home(tmp + 1);
free(tmp);
if (home == NULL)
return NULL;
full = xstrjoin(home, first_slash);
free(home);
} else {
full = xstrdup(dir);
}
return full;
}
/*
* load all directory entries from directory 'dir' starting with 'start' and
* filtered with 'filter'
*/
static void tabexp_load_dir(const char *dirname, const char *start,
int (*filter)(const char *, const struct stat *))
{
int start_len = strlen(start);
struct directory dir;
PTR_ARRAY(array);
const char *name;
char *full_dir_name;
/* tabexp is reseted */
full_dir_name = get_full_dir_name(dirname);
if (!full_dir_name)
return;
if (dir_open(&dir, full_dir_name))
goto out;
while ((name = dir_read(&dir))) {
char *str;
if (!start_len) {
if (name[0] == '.')
continue;
} else {
if (strncmp(name, start, start_len))
continue;
}
if (!filter(name, &dir.st))
continue;
if (S_ISDIR(dir.st.st_mode)) {
int len = strlen(name);
str = xnew(char, len + 2);
memcpy(str, name, len);
str[len++] = '/';
str[len] = 0;
} else {
str = xstrdup(name);
}
ptr_array_add(&array, str);
}
if (array.count) {
ptr_array_sort(&array, strptrcmp);
ptr_array_plug(&array);
tabexp.head = xstrdup(dirname);
tabexp.tails = array.ptrs;
tabexp.nr_tails = array.count;
}
out:
free(full_dir_name);
}
void expand_files_and_dirs(const char *src,
int (*filter)(const char *name, const struct stat *s))
{
char *slash;
/* split src to dir and file */
slash = strrchr(src, '/');
if (slash) {
char *dir;
const char *file;
/* split */
dir = xstrndup(src, slash - src + 1);
file = slash + 1;
/* get all dentries starting with file from dir */
tabexp_load_dir(dir, file, filter);
free(dir);
} else {
if (src[0] == '~') {
char *home = get_home(src + 1);
if (home) {
tabexp.head = xstrdup("");
tabexp.nr_tails = 1;
tabexp.tails = xnew(char *, 2);
tabexp.tails[0] = home;
tabexp.tails[1] = NULL;
}
} else {
tabexp_load_dir("", src, filter);
}
}
}
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