Am I leet yet
(only supports one argument because minimalism or something like that)
(I didn't write argbegin)
#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#include <pwd.h>
#include <grp.h>
#include <time.h>
#include "arg.h"
static int show_hidden = 0 , big_list = 0 ;
__attribute__((noreturn)) void
usage (void ) fprintf (stderr, "Usage: ls [-al]\n" );
exit (1 );
}
static int
sel (const struct dirent *file) if (!show_hidden) {
if (file->d_name[0 ] == '.' )
return 0 ;
}
return 1 ;
}
int
main (int argc, char **argv) int n;
const char *dir;
struct dirent **lst ;case 'a' :
show_hidden = 1 ;
break ;
case 'l' :
big_list = 1 ;
break ;
default :
usage ();
break ;
} ARGEND [Expand Post]
if (argc == 0 )
dir = "." ;
else
dir = argv[1 ];
n = scandir (dir, &lst, sel, alphasort);
for (int i = 0 ; i < n; i++) {
if (big_list) {
int s;
struct stat st ;char perm[] = "----------" ;
struct passwd *user ;struct group *group ;char date[20 ], *datefmt;
stat (lst[i]->d_name, &st);
const struct tm *tm ;if (lst[i]->d_type == DT_DIR)
perm[0 ] = 'd' ;
if (st.st_mode & S_IRUSR) perm[1 ] = 'r' ;
if (st.st_mode & S_IWUSR) perm[2 ] = 'w' ;
if (st.st_mode & S_IXUSR) perm[3 ] = 'x' ;
if (st.st_mode & S_IRGRP) perm[4 ] = 'r' ;
if (st.st_mode & S_IWGRP) perm[5 ] = 'w' ;
if (st.st_mode & S_IXGRP) perm[6 ] = 'x' ;
if (st.st_mode & S_IROTH) perm[7 ] = 'r' ;
if (st.st_mode & S_IWOTH) perm[8 ] = 'w' ;
if (st.st_mode & S_IXOTH) perm[9 ] = 'x' ;
user = getpwuid (st.st_uid);
group = getgrgid (st.st_gid);
if (time (NULL ) > st.st_mtim.tv_sec + (180 * 24 * 60 * 60 ))
datefmt = "%b %d %Y" ;
else
datefmt = "%b %d %H:%M" ;
tm = localtime (&st.st_mtim.tv_sec);
strftime (date, sizeof printf ("%s %4u %-8s %-8s %9d %s %s\n" , perm, st.st_nlink, user->pw_name, group->gr_name, st.st_size, date, lst[i]->d_name);
} else {
printf ("%s\n" , lst[i]->d_name);
}
}
}