/*
* To achieve a small memory footprint, this version of 'ls' doesn't do any
* file sorting, and only has the most essential command line switches
- * (i.e. the ones I couldn't live without :-) All features which involve
+ * (i.e., the ones I couldn't live without :-) All features which involve
* linking in substantial chunks of libc can be disabled.
*
* Although I don't really want to add new features to this program to
* 1. requires lstat (BSD) - how do you do it without?
*/
-#define TERMINAL_WIDTH 80 /* use 79 if your terminal has linefold bug */
-#define COLUMN_WIDTH 14 /* default if AUTOWIDTH not defined */
-#define COLUMN_GAP 2 /* includes the file type char, if present */
+enum {
+ TERMINAL_WIDTH = 80, /* use 79 if terminal has linefold bug */
+ COLUMN_WIDTH = 14, /* default if AUTOWIDTH not defined */
+ COLUMN_GAP = 2, /* includes the file type char */
+};
+
/************************************************************************/
-#include "busybox.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <dirent.h>
#include <errno.h>
#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+#include "busybox.h"
+
#ifdef BB_FEATURE_LS_TIMESTAMPS
#include <time.h>
#endif
-#include <string.h>
-#ifndef NAJOR
+#ifndef MAJOR
#define MAJOR(dev) (((dev)>>8)&0xff)
#define MINOR(dev) ((dev)&0xff)
#endif
/* what is the overall style of the listing */
-#define STYLE_AUTO 0
-#define STYLE_LONG 1 /* one record per line, extended info */
-#define STYLE_SINGLE 2 /* one record per line */
-#define STYLE_COLUMNS 3 /* fill columns */
+enum {
+STYLE_AUTO = 0,
+STYLE_LONG = 1, /* one record per line, extended info */
+STYLE_SINGLE = 2, /* one record per line */
+STYLE_COLUMNS = 3 /* fill columns */
+};
/* 51306 lrwxrwxrwx 1 root root 2 May 11 01:43 /bin/view -> vi* */
/* what file information will be listed */
#ifdef BB_FEATURE_LS_SORTFILES
/* how will the files be sorted */
-#define SORT_FORWARD 0 /* sort in reverse order */
-#define SORT_REVERSE 1 /* sort in reverse order */
-#define SORT_NAME 2 /* sort by file name */
-#define SORT_SIZE 3 /* sort by file size */
-#define SORT_ATIME 4 /* sort by last access time */
-#define SORT_CTIME 5 /* sort by last change time */
-#define SORT_MTIME 6 /* sort by last modification time */
-#define SORT_VERSION 7 /* sort by version */
-#define SORT_EXT 8 /* sort by file name extension */
-#define SORT_DIR 9 /* sort by file or directory */
+static const int SORT_FORWARD = 0; /* sort in reverse order */
+static const int SORT_REVERSE = 1; /* sort in reverse order */
+static const int SORT_NAME = 2; /* sort by file name */
+static const int SORT_SIZE = 3; /* sort by file size */
+static const int SORT_ATIME = 4; /* sort by last access time */
+static const int SORT_CTIME = 5; /* sort by last change time */
+static const int SORT_MTIME = 6; /* sort by last modification time */
+static const int SORT_VERSION = 7; /* sort by version */
+static const int SORT_EXT = 8; /* sort by file name extension */
+static const int SORT_DIR = 9; /* sort by file or directory */
#endif
#ifdef BB_FEATURE_LS_TIMESTAMPS
/* which of the three times will be used */
-#define TIME_MOD 0
-#define TIME_CHANGE 1
-#define TIME_ACCESS 2
+static const int TIME_MOD = 0;
+static const int TIME_CHANGE = 1;
+static const int TIME_ACCESS = 2;
#endif
#define LIST_SHORT (LIST_FILENAME)
LIST_SYMLINK)
#define LIST_ILONG (LIST_INO | LIST_LONG)
-#define SPLIT_DIR 0
-#define SPLIT_FILE 1
-#define SPLIT_SUBDIR 2
+static const int SPLIT_DIR = 0;
+static const int SPLIT_FILE = 1;
+static const int SPLIT_SUBDIR = 2;
#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
};
typedef struct dnode dnode_t;
-struct dnode **list_dir(char *);
-struct dnode **dnalloc(int);
-int list_single(struct dnode *);
+static struct dnode **list_dir(char *);
+static struct dnode **dnalloc(int);
+static int list_single(struct dnode *);
-static unsigned int disp_opts= DISP_NORMAL;
-static unsigned int style_fmt= STYLE_AUTO ;
-static unsigned int list_fmt= LIST_SHORT ;
+static unsigned int disp_opts;
+static unsigned int style_fmt;
+static unsigned int list_fmt;
#ifdef BB_FEATURE_LS_SORTFILES
-static unsigned int sort_opts= SORT_FORWARD;
-static unsigned int sort_order= SORT_FORWARD;
+static unsigned int sort_opts;
+static unsigned int sort_order;
#endif
#ifdef BB_FEATURE_LS_TIMESTAMPS
-static unsigned int time_fmt= TIME_MOD;
+static unsigned int time_fmt;
#endif
#ifdef BB_FEATURE_LS_FOLLOWLINKS
static unsigned int follow_links=FALSE;
#ifdef BB_FEATURE_AUTOWIDTH
static unsigned short terminal_width = TERMINAL_WIDTH;
static unsigned short column_width = COLUMN_WIDTH;
-static unsigned short tabstops = 8;
+static unsigned short tabstops = COLUMN_GAP;
#else
-#define terminal_width TERMINAL_WIDTH
-#define column_width COLUMN_WIDTH
+static unsigned short column_width = COLUMN_WIDTH;
#endif
static int status = EXIT_SUCCESS;
+#ifdef BB_FEATURE_HUMAN_READABLE
+static unsigned long ls_disp_hr = 0;
+#endif
+
static int my_stat(struct dnode *cur)
{
#ifdef BB_FEATURE_LS_FOLLOWLINKS
column++;
}
}
- nexttab= column + column_width + COLUMN_GAP ;
+ nexttab= column + column_width + COLUMN_GAP;
}
/*----------------------------------------------------------------------*/
strcmp(dn->name, "..") != 0);
}
-int countdirs(struct dnode **dn, int nfiles)
+static int countdirs(struct dnode **dn, int nfiles)
{
int i, dirs;
return(dirs);
}
-int countsubdirs(struct dnode **dn, int nfiles)
+static int countsubdirs(struct dnode **dn, int nfiles)
{
int i, subdirs;
return subdirs;
}
-int countfiles(struct dnode **dnp)
+static int countfiles(struct dnode **dnp)
{
int nfiles;
struct dnode *cur;
}
/* get memory to hold an array of pointers */
-struct dnode **dnalloc(int num)
+static struct dnode **dnalloc(int num)
{
struct dnode **p;
return(p);
}
-void dfree(struct dnode **dnp)
+static void dfree(struct dnode **dnp)
{
struct dnode *cur, *next;
free(dnp); /* free the array holding the dnode pointers */
}
-struct dnode **splitdnarray(struct dnode **dn, int nfiles, int which)
+static struct dnode **splitdnarray(struct dnode **dn, int nfiles, int which)
{
int dncnt, i, d;
struct dnode **dnp;
/*----------------------------------------------------------------------*/
#ifdef BB_FEATURE_LS_SORTFILES
-int sortcmp(struct dnode *d1, struct dnode *d2)
+static int sortcmp(struct dnode *d1, struct dnode *d2)
{
int cmp, dif;
}
/*----------------------------------------------------------------------*/
-void shellsort(struct dnode **dn, int size)
+static void shellsort(struct dnode **dn, int size)
{
struct dnode *temp;
int gap, i, j;
#endif
/*----------------------------------------------------------------------*/
-void showfiles(struct dnode **dn, int nfiles)
+static void showfiles(struct dnode **dn, int nfiles)
{
int i, ncols, nrows, row, nc;
#ifdef BB_FEATURE_AUTOWIDTH
((list_fmt & LIST_INO) ? 8 : 0) +
((list_fmt & LIST_BLOCKS) ? 5 : 0)
;
- if (column_width < len) column_width= len;
+ if (column_width < len)
+ column_width= len;
+ }
+ if (column_width >= 6)
+ ncols = (int)(terminal_width / (column_width + COLUMN_GAP));
+ else {
+ ncols = 1;
+ column_width = COLUMN_WIDTH;
}
+#else
+ ncols= TERMINAL_WIDTH;
#endif
- ncols= (int)(terminal_width / (column_width + COLUMN_GAP));
switch (style_fmt) {
case STYLE_LONG: /* one record per line, extended info */
case STYLE_SINGLE: /* one record per line */
break;
}
- nrows= nfiles / ncols;
+ if (ncols > 1) {
+ nrows = nfiles / ncols;
+ } else {
+ nrows = nfiles;
+ ncols = 1;
+ }
if ((nrows * ncols) < nfiles) nrows++; /* round up fractionals */
if (nrows > nfiles) nrows= nfiles;
}
/*----------------------------------------------------------------------*/
-void showdirs(struct dnode **dn, int ndirs)
+static void showdirs(struct dnode **dn, int ndirs)
{
int i, nfiles;
struct dnode **subdnp;
}
/*----------------------------------------------------------------------*/
-struct dnode **list_dir(char *path)
+static struct dnode **list_dir(char *path)
{
struct dnode *dn, *cur, **dnp;
struct dirent *entry;
}
while ((entry = readdir(dir)) != NULL) {
/* are we going to list the file- it may be . or .. or a hidden file */
- if ((strcmp(entry->d_name, ".")==0) && !(disp_opts & DISP_DOT)) continue;
- if ((strcmp(entry->d_name, "..")==0) && !(disp_opts & DISP_DOT)) continue;
- if ((entry->d_name[0] == '.') && !(disp_opts & DISP_HIDDEN)) continue;
+ if ((strcmp(entry->d_name, ".")==0) && !(disp_opts & DISP_DOT))
+ continue;
+ if ((strcmp(entry->d_name, "..")==0) && !(disp_opts & DISP_DOT))
+ continue;
+ if ((entry->d_name[0] == '.') && !(disp_opts & DISP_HIDDEN))
+ continue;
cur= (struct dnode *)xmalloc(sizeof(struct dnode));
- cur->fullname = xmalloc(strlen(path)+1+strlen(entry->d_name)+1);
- strcpy(cur->fullname, path);
- if (cur->fullname[strlen(cur->fullname)-1] != '/')
- strcat(cur->fullname, "/");
- cur->name= cur->fullname + strlen(cur->fullname);
- strcat(cur->fullname, entry->d_name);
+ cur->fullname = concat_path_file(path, entry->d_name);
+ cur->name = cur->fullname +
+ (strlen(cur->fullname) - strlen(entry->d_name));
if (my_stat(cur))
continue;
cur->next= dn;
}
/*----------------------------------------------------------------------*/
-int list_single(struct dnode *dn)
+static int list_single(struct dnode *dn)
{
- int i, len;
+ int i;
char scratch[BUFSIZ + 1];
#ifdef BB_FEATURE_LS_TIMESTAMPS
char *filetime;
for (i=0; i<=31; i++) {
switch (list_fmt & (1<<i)) {
case LIST_INO:
- printf("%7ld ", dn->dstat.st_ino);
+ printf("%7ld ", (long int)dn->dstat.st_ino);
column += 8;
break;
case LIST_BLOCKS:
+#ifdef BB_FEATURE_HUMAN_READABLE
+ fprintf(stdout, "%6s ", make_human_readable_str(dn->dstat.st_blocks>>1,
+ KILOBYTE, (ls_disp_hr==TRUE)? 0: KILOBYTE));
+#else
#if _FILE_OFFSET_BITS == 64
printf("%4lld ", dn->dstat.st_blocks>>1);
#else
printf("%4ld ", dn->dstat.st_blocks>>1);
+#endif
#endif
column += 5;
break;
case LIST_MODEBITS:
- printf("%10s", (char *)mode_string(dn->dstat.st_mode));
+ printf("%-10s ", (char *)mode_string(dn->dstat.st_mode));
column += 10;
break;
case LIST_NLINKS:
- printf("%4d ", dn->dstat.st_nlink);
+ printf("%4ld ", (long)dn->dstat.st_nlink);
column += 10;
break;
case LIST_ID_NAME:
#ifdef BB_FEATURE_LS_USERNAME
my_getpwuid(scratch, dn->dstat.st_uid);
- if (*scratch)
- printf("%-8.8s ", scratch);
- else
- printf("%-8d ", dn->dstat.st_uid);
+ printf("%-8.8s ", scratch);
my_getgrgid(scratch, dn->dstat.st_gid);
- if (*scratch)
- printf("%-8.8s", scratch);
- else
- printf("%-8d", dn->dstat.st_gid);
+ printf("%-8.8s ", scratch);
column += 17;
break;
#endif
if (S_ISBLK(dn->dstat.st_mode) || S_ISCHR(dn->dstat.st_mode)) {
printf("%4d, %3d ", (int)MAJOR(dn->dstat.st_rdev), (int)MINOR(dn->dstat.st_rdev));
} else {
+#ifdef BB_FEATURE_HUMAN_READABLE
+ if (ls_disp_hr==TRUE) {
+ fprintf(stdout, "%8s ", make_human_readable_str(dn->dstat.st_size, 1, 0));
+ } else
+#endif
+ {
#if _FILE_OFFSET_BITS == 64
- printf("%9lld ", dn->dstat.st_size);
+ printf("%9lld ", (long long)dn->dstat.st_size);
#else
- printf("%9ld ", dn->dstat.st_size);
+ printf("%9ld ", dn->dstat.st_size);
#endif
+ }
}
column += 10;
break;
break;
case LIST_SYMLINK:
if (S_ISLNK(dn->dstat.st_mode)) {
- len= readlink(dn->fullname, scratch, (sizeof scratch)-1);
- if (len > 0) {
- scratch[len]= '\0';
- printf(" -> %s", scratch);
+ char *lpath = xreadlink(dn->fullname);
+ if (lpath) {
+ printf(" -> %s", lpath);
#ifdef BB_FEATURE_LS_FILETYPES
if (!stat(dn->fullname, &info)) {
append = append_char(info.st_mode);
}
#endif
- column += len+4;
+ column += strlen(lpath) + 4;
+ free(lpath);
}
}
break;
int opt;
int oi, ac;
char **av;
+#ifdef BB_FEATURE_AUTOWIDTH
+ struct winsize win = { 0, 0, 0, 0 };
+#endif
disp_opts= DISP_NORMAL;
style_fmt= STYLE_AUTO;
list_fmt= LIST_SHORT;
#ifdef BB_FEATURE_LS_SORTFILES
sort_opts= SORT_NAME;
+ sort_order= SORT_FORWARD;
#endif
#ifdef BB_FEATURE_LS_TIMESTAMPS
time_fmt= TIME_MOD;
+#endif
+#ifdef BB_FEATURE_AUTOWIDTH
+ ioctl(fileno(stdout), TIOCGWINSZ, &win);
+ if (win.ws_row > 4)
+ column_width = win.ws_row - 2;
+ if (win.ws_col > 0)
+ terminal_width = win.ws_col - 1;
#endif
nfiles=0;
#ifdef BB_FEATURE_LS_FOLLOWLINKS
"L"
#endif
- )) > 0) {
+#ifdef BB_FEATURE_HUMAN_READABLE
+"h"
+#endif
+"k")) > 0) {
switch (opt) {
case '1': style_fmt = STYLE_SINGLE; break;
case 'A': disp_opts |= DISP_HIDDEN; break;
case 'd': disp_opts |= DISP_NOLIST; break;
case 'g': /* ignore -- for ftp servers */ break;
case 'i': list_fmt |= LIST_INO; break;
- case 'l': style_fmt = STYLE_LONG; list_fmt |= LIST_LONG; break;
+ case 'l':
+ style_fmt = STYLE_LONG;
+ list_fmt |= LIST_LONG;
+#ifdef BB_FEATURE_HUMAN_READABLE
+ ls_disp_hr = FALSE;
+#endif
+ break;
case 'n': list_fmt |= LIST_ID_NUMERIC; break;
case 's': list_fmt |= LIST_BLOCKS; break;
case 'x': disp_opts = DISP_ROWS; break;
case 'T': tabstops= atoi(optarg); break;
case 'w': terminal_width= atoi(optarg); break;
#endif
+#ifdef BB_FEATURE_HUMAN_READABLE
+ case 'h': ls_disp_hr = TRUE; break;
+#endif
+ case 'k': break;
default:
goto print_usage_message;
}
showdirs(dnd, dndirs);
}
}
-
return(status);
print_usage_message:
- usage(ls_usage);
+ show_usage();
}
projects / oweals / busybox.git / blobdiff