/*
* tiny-ls.c version 0.1.0: A minimalist 'ls'
* Copyright (C) 1996 Brian Candler <B.Candler@pobox.com>
- *
+ *
* 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
/*
* 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 */
-#define HAS_REWINDDIR
+enum {
+ TERMINAL_WIDTH = 80, /* use 79 if terminal has linefold bug */
+ COLUMN_GAP = 2, /* includes the file type char */
+};
/************************************************************************/
-#include "internal.h"
-#if !defined(__GLIBC__) && (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
-# include <linux/types.h>
-#else
-# include <sys/types.h>
-#endif
+#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <unistd.h>
#include <dirent.h>
#include <errno.h>
#include <stdio.h>
-#ifdef BB_FEATURE_LS_TIMESTAMPS
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <sys/sysmacros.h> /* major() and minor() */
+#include "busybox.h"
+#ifdef CONFIG_SELINUX
+#include <fs_secure.h>
+#include <flask_util.h>
+#include <ss.h>
+#endif
+
+#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
#include <time.h>
#endif
-#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
-#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
-#ifdef BB_FEATURE_LS_FILETYPES
-#define APPCHAR(mode) ("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
+/* what is the overall style of the listing */
+#define STYLE_AUTO (0)
+#define STYLE_COLUMNS (1U<<21) /* fill columns */
+#define STYLE_LONG (2U<<21) /* one record per line, extended info */
+#define STYLE_SINGLE (3U<<21) /* one record per line */
+
+#define STYLE_MASK STYLE_SINGLE
+#define STYLE_ONE_RECORD_FLAG STYLE_LONG
+
+/* 51306 lrwxrwxrwx 1 root root 2 May 11 01:43 /bin/view -> vi* */
+/* what file information will be listed */
+#define LIST_INO (1U<<0)
+#define LIST_BLOCKS (1U<<1)
+#define LIST_MODEBITS (1U<<2)
+#define LIST_NLINKS (1U<<3)
+#define LIST_ID_NAME (1U<<4)
+#define LIST_ID_NUMERIC (1U<<5)
+#define LIST_CONTEXT (1U<<6)
+#define LIST_SIZE (1U<<7)
+#define LIST_DEV (1U<<8)
+#define LIST_DATE_TIME (1U<<9)
+#define LIST_FULLTIME (1U<<10)
+#define LIST_FILENAME (1U<<11)
+#define LIST_SYMLINK (1U<<12)
+#define LIST_FILETYPE (1U<<13)
+#define LIST_EXEC (1U<<14)
+
+#define LIST_MASK ((LIST_EXEC << 1) - 1)
+
+/* what files will be displayed */
+/* TODO -- We may be able to make DISP_NORMAL 0 to save a bit slot. */
+#define DISP_NORMAL (1U<<14) /* show normal filenames */
+#define DISP_DIRNAME (1U<<15) /* 2 or more items? label directories */
+#define DISP_HIDDEN (1U<<16) /* show filenames starting with . */
+#define DISP_DOT (1U<<17) /* show . and .. */
+#define DISP_NOLIST (1U<<18) /* show directory as itself, not contents */
+#define DISP_RECURSIVE (1U<<19) /* show directory and everything below it */
+#define DISP_ROWS (1U<<20) /* print across rows */
+
+#define DISP_MASK (((DISP_ROWS << 1) - 1) & ~(DISP_NORMAL - 1))
+
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+/* how will the files be sorted */
+#define SORT_ORDER_FORWARD 0 /* sort in reverse order */
+#define SORT_ORDER_REVERSE (1U<<27) /* sort in reverse order */
+
+#define SORT_NAME 0 /* sort by file name */
+#define SORT_SIZE (1U<<28) /* sort by file size */
+#define SORT_ATIME (2U<<28) /* sort by last access time */
+#define SORT_CTIME (3U<<28) /* sort by last change time */
+#define SORT_MTIME (4U<<28) /* sort by last modification time */
+#define SORT_VERSION (5U<<28) /* sort by version */
+#define SORT_EXT (6U<<28) /* sort by file name extension */
+#define SORT_DIR (7U<<28) /* sort by file or directory */
+
+#define SORT_MASK (7U<<28)
#endif
-#define FMT_AUTO 0
-#define FMT_LONG 1 /* one record per line, extended info */
-#define FMT_SINGLE 2 /* one record per line */
-#define FMT_ROWS 3 /* print across rows */
-#define FMT_COLUMNS 3 /* fill columns (same, since we don't sort) */
+#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
+/* which of the three times will be used */
+#define TIME_MOD 0
+#define TIME_CHANGE (1U<<23)
+#define TIME_ACCESS (1U<<24)
-#define TIME_MOD 0
-#define TIME_CHANGE 1
-#define TIME_ACCESS 2
+#define TIME_MASK (3U<<23)
+#endif
+
+#ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
+#define FOLLOW_LINKS (1U<<25)
+#endif
+#ifdef CONFIG_FEATURE_HUMAN_READABLE
+#define LS_DISP_HR (1U<<26)
+#endif
-#define DISP_FTYPE 1 /* show character for file type */
-#define DISP_EXEC 2 /* show '*' if regular executable file */
-#define DISP_HIDDEN 4 /* show files starting . (except . and ..) */
-#define DISP_DOT 8 /* show . and .. */
-#define DISP_NUMERIC 16 /* numeric uid and gid */
-#define DISP_FULLTIME 32 /* show extended time display */
-#define DIR_NOLIST 64 /* show directory as itself, not contents */
-#define DISP_DIRNAME 128 /* show directory name (for internal use) */
+#define LIST_SHORT (LIST_FILENAME)
+#define LIST_ISHORT (LIST_INO | LIST_FILENAME)
+#define LIST_LONG (LIST_MODEBITS | LIST_NLINKS | LIST_ID_NAME | LIST_SIZE | \
+ LIST_DATE_TIME | LIST_FILENAME | LIST_SYMLINK)
+#define LIST_ILONG (LIST_INO | LIST_LONG)
-#ifndef MAJOR
-#define MAJOR(dev) (((dev)>>8)&0xff)
-#define MINOR(dev) ((dev)&0xff)
+#define SPLIT_DIR 1
+#define SPLIT_FILE 0
+#define SPLIT_SUBDIR 2
+
+#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
+#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
+
+#if defined(CONFIG_FEATURE_LS_FILETYPES) || defined(CONFIG_FEATURE_LS_COLOR)
+# define APPCHAR(mode) ("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
#endif
-static unsigned char display_fmt = FMT_AUTO;
-static unsigned short opts = 0;
-static unsigned short column = 0;
+/* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
+#ifdef CONFIG_FEATURE_LS_COLOR
+static int show_color = 0;
-#ifdef BB_FEATURE_AUTOWIDTH
-static unsigned short terminal_width = 0;
-static unsigned short column_width = 0;
-static unsigned short toplevel_column_width = 0;
-#else
-#define terminal_width TERMINAL_WIDTH
-#define column_width COLUMN_WIDTH
+#define COLOR(mode) ("\000\043\043\043\042\000\043\043"\
+ "\000\000\044\000\043\000\000\040" [TYPEINDEX(mode)])
+#define ATTR(mode) ("\00\00\01\00\01\00\01\00"\
+ "\00\00\01\00\01\00\00\01" [TYPEINDEX(mode)])
+#endif
+
+/*
+ * a directory entry and its stat info are stored here
+ */
+struct dnode { /* the basic node */
+ char *name; /* the dir entry name */
+ char *fullname; /* the dir entry name */
+ struct stat dstat; /* the file stat info */
+#ifdef CONFIG_SELINUX
+ security_id_t sid;
+#endif
+ struct dnode *next; /* point at the next node */
+};
+typedef struct dnode dnode_t;
+
+static struct dnode **list_dir(const char *);
+static struct dnode **dnalloc(int);
+static int list_single(struct dnode *);
+
+static unsigned int all_fmt;
+
+#ifdef CONFIG_SELINUX
+static int is_flask_enabled_flag;
#endif
-#ifdef BB_FEATURE_LS_TIMESTAMPS
-static unsigned char time_fmt = TIME_MOD;
+#ifdef CONFIG_FEATURE_AUTOWIDTH
+static int terminal_width = TERMINAL_WIDTH;
+static unsigned short tabstops = COLUMN_GAP;
+#else
+#define tabstops COLUMN_GAP
+#define terminal_width TERMINAL_WIDTH
#endif
-#define wr(data,len) fwrite(data, 1, len, stdout)
+static int status = EXIT_SUCCESS;
-static void writenum(long val, short minwidth)
+static struct dnode *my_stat(char *fullname, char *name)
{
- char scratch[128];
-
- char *p = scratch + sizeof(scratch);
- short len = 0;
- short neg = (val < 0);
-
- if (neg)
- val = -val;
- do
- *--p = (val % 10) + '0', len++, val /= 10;
- while (val);
- if (neg)
- *--p = '-', len++;
- while (len < minwidth)
- *--p = ' ', len++;
- wr(p, len);
- column += len;
+ struct stat dstat;
+ struct dnode *cur;
+#ifdef CONFIG_SELINUX
+ security_id_t sid;
+#endif
+ int rc;
+
+#ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
+ if (all_fmt & FOLLOW_LINKS) {
+#ifdef CONFIG_SELINUX
+ if(is_flask_enabled_flag)
+ rc = stat_secure(fullname, &dstat, &sid);
+ else
+#endif
+ rc = stat(fullname, &dstat);
+ if(rc)
+ {
+ bb_perror_msg("%s", fullname);
+ status = EXIT_FAILURE;
+ return 0;
+ }
+ } else
+#endif
+ {
+#ifdef CONFIG_SELINUX
+ if(is_flask_enabled_flag)
+ rc = lstat_secure(fullname, &dstat, &sid);
+ else
+#endif
+ rc = lstat(fullname, &dstat);
+ if(rc)
+ {
+ bb_perror_msg("%s", fullname);
+ status = EXIT_FAILURE;
+ return 0;
+ }
+ }
+
+ cur = (struct dnode *) xmalloc(sizeof(struct dnode));
+ cur->fullname = fullname;
+ cur->name = name;
+ cur->dstat = dstat;
+#ifdef CONFIG_SELINUX
+ cur->sid = sid;
+#endif
+ return cur;
}
-static void newline(void)
+/*----------------------------------------------------------------------*/
+#ifdef CONFIG_FEATURE_LS_COLOR
+static char fgcolor(mode_t mode)
{
- if (column > 0) {
- wr("\n", 1);
- column = 0;
+ /* Check wheter the file is existing (if so, color it red!) */
+ if (errno == ENOENT) {
+ return '\037';
}
+ if (LIST_EXEC && S_ISREG(mode)
+ && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+ return COLOR(0xF000); /* File is executable ... */
+ return COLOR(mode);
}
-static void tab(short col)
+/*----------------------------------------------------------------------*/
+static char bgcolor(mode_t mode)
{
- static const char spaces[] = " ";
-
-#define nspaces ((sizeof spaces)-1) /* null terminator! */
-
- short n = col - column;
-
- if (n > 0) {
- column = col;
- while (n > nspaces) {
- wr(spaces, nspaces);
- n -= nspaces;
- }
- /* must be 1...(sizeof spaces) left */
- wr(spaces, n);
- }
-#undef nspaces
+ if (LIST_EXEC && S_ISREG(mode)
+ && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+ return ATTR(0xF000); /* File is executable ... */
+ return ATTR(mode);
}
+#endif
-#ifdef BB_FEATURE_LS_FILETYPES
+/*----------------------------------------------------------------------*/
+#if defined(CONFIG_FEATURE_LS_FILETYPES) || defined(CONFIG_FEATURE_LS_COLOR)
static char append_char(mode_t mode)
{
- if (!(opts & DISP_FTYPE))
+ if (!(all_fmt & LIST_FILETYPE))
return '\0';
- if ((opts & DISP_EXEC) && S_ISREG(mode)
- && (mode & (S_IXUSR | S_IXGRP | S_IXOTH))) return '*';
+ if ((all_fmt & LIST_EXEC) && S_ISREG(mode)
+ && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+ return '*';
return APPCHAR(mode);
}
#endif
-/**
- **
- ** Display a file or directory as a single item
- ** (in either long or short format)
- **
- **/
+/*----------------------------------------------------------------------*/
+
+#define countdirs(A,B) count_dirs((A), (B), 1)
+#define countsubdirs(A,B) count_dirs((A), (B), 0)
-static void list_single(const char *name, struct stat *info,
- const char *fullname)
+static int count_dirs(struct dnode **dn, int nfiles, int notsubdirs)
{
- char scratch[PATH_MAX + 1];
- short len = strlen(name);
-
-#ifdef BB_FEATURE_LS_FILETYPES
- char append = append_char(info->st_mode);
-#endif
-
- if (display_fmt == FMT_LONG) {
- mode_t mode = info->st_mode;
-
- newline();
- wr(modeString(mode), 10);
- column = 10;
- writenum((long) info->st_nlink, (short) 5);
- fputs(" ", stdout);
-#ifdef BB_FEATURE_LS_USERNAME
- if (!(opts & DISP_NUMERIC)) {
- memset(scratch, 0, sizeof(scratch));
- my_getpwuid(scratch, info->st_uid);
- if (*scratch) {
- fputs(scratch, stdout);
- if (strlen(scratch) <= 8)
- wr(" ", 9 - strlen(scratch));
- } else {
- writenum((long) info->st_uid, (short) 8);
- fputs(" ", stdout);
- }
- } else
+ int i, dirs;
+
+ if (dn == NULL || nfiles < 1)
+ return (0);
+ dirs = 0;
+ for (i = 0; i < nfiles; i++) {
+ if (S_ISDIR(dn[i]->dstat.st_mode)
+ && (notsubdirs
+ || ((dn[i]->name[0] != '.')
+ || (dn[i]->name[1]
+ && ((dn[i]->name[1] != '.')
+ || dn[i]->name[2])))))
+ dirs++;
+ }
+ return (dirs);
+}
+
+static int countfiles(struct dnode **dnp)
+{
+ int nfiles;
+ struct dnode *cur;
+
+ if (dnp == NULL)
+ return (0);
+ nfiles = 0;
+ for (cur = dnp[0]; cur->next != NULL; cur = cur->next)
+ nfiles++;
+ nfiles++;
+ return (nfiles);
+}
+
+/* get memory to hold an array of pointers */
+static struct dnode **dnalloc(int num)
+{
+ struct dnode **p;
+
+ if (num < 1)
+ return (NULL);
+
+ p = (struct dnode **) xcalloc((size_t) num,
+ (size_t) (sizeof(struct dnode *)));
+ return (p);
+}
+
+#ifdef CONFIG_FEATURE_LS_RECURSIVE
+static void dfree(struct dnode **dnp)
+{
+ struct dnode *cur, *next;
+
+ if (dnp == NULL)
+ return;
+
+ cur = dnp[0];
+ while (cur != NULL) {
+ free(cur->fullname); /* free the filename */
+ next = cur->next;
+ free(cur); /* free the dnode */
+ cur = next;
+ }
+ free(dnp); /* free the array holding the dnode pointers */
+}
#endif
- {
- writenum((long) info->st_uid, (short) 8);
- fputs(" ", stdout);
- }
-#ifdef BB_FEATURE_LS_USERNAME
- if (!(opts & DISP_NUMERIC)) {
- memset(scratch, 0, sizeof(scratch));
- my_getgrgid(scratch, info->st_gid);
- if (*scratch) {
- fputs(scratch, stdout);
- if (strlen(scratch) <= 8)
- wr(" ", 8 - strlen(scratch));
- } else
- writenum((long) info->st_gid, (short) 8);
- } else
-#endif
- writenum((long) info->st_gid, (short) 8);
- //tab(26);
- if (S_ISBLK(mode) || S_ISCHR(mode)) {
- writenum((long) MAJOR(info->st_rdev), (short) 3);
- fputs(", ", stdout);
- writenum((long) MINOR(info->st_rdev), (short) 3);
- } else
- writenum((long) info->st_size, (short) 8);
- fputs(" ", stdout);
- //tab(32);
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- {
- time_t cal;
- char *string;
-
- switch (time_fmt) {
- case TIME_CHANGE:
- cal = info->st_ctime;
- break;
- case TIME_ACCESS:
- cal = info->st_atime;
- break;
- default:
- cal = info->st_mtime;
- break;
- }
- string = ctime(&cal);
- if (opts & DISP_FULLTIME)
- wr(string, 24);
- else {
- time_t age = time(NULL) - cal;
-
- wr(string + 4, 7); /* mmm_dd_ */
- if (age < 3600L * 24 * 365 / 2 && age > -15 * 60)
- /* hh:mm if less than 6 months old */
- wr(string + 11, 5);
- else
- /* _yyyy otherwise */
- wr(string + 19, 5);
+
+static struct dnode **splitdnarray(struct dnode **dn, int nfiles, int which)
+{
+ int dncnt, i, d;
+ struct dnode **dnp;
+
+ if (dn == NULL || nfiles < 1)
+ return (NULL);
+
+ /* count how many dirs and regular files there are */
+ if (which == SPLIT_SUBDIR)
+ dncnt = countsubdirs(dn, nfiles);
+ else {
+ dncnt = countdirs(dn, nfiles); /* assume we are looking for dirs */
+ if (which == SPLIT_FILE)
+ dncnt = nfiles - dncnt; /* looking for files */
+ }
+
+ /* allocate a file array and a dir array */
+ dnp = dnalloc(dncnt);
+
+ /* copy the entrys into the file or dir array */
+ for (d = i = 0; i < nfiles; i++) {
+ if (S_ISDIR(dn[i]->dstat.st_mode)) {
+ if (which & (SPLIT_DIR|SPLIT_SUBDIR)) {
+ if ((which & SPLIT_DIR)
+ || ((dn[i]->name[0] != '.')
+ || (dn[i]->name[1]
+ && ((dn[i]->name[1] != '.')
+ || dn[i]->name[2])))) {
+ dnp[d++] = dn[i];
+ }
}
- wr(" ", 1);
+ } else if (!(which & (SPLIT_DIR|SPLIT_SUBDIR))) {
+ dnp[d++] = dn[i];
}
+ }
+ return (dnp);
+}
+
+/*----------------------------------------------------------------------*/
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+static int sortcmp(struct dnode *d1, struct dnode *d2)
+{
+ unsigned int sort_opts = all_fmt & SORT_MASK;
+ int dif;
+
+ dif = 0; /* assume SORT_NAME */
+ if (sort_opts == SORT_SIZE) {
+ dif = (int) (d2->dstat.st_size - d1->dstat.st_size);
+ } else if (sort_opts == SORT_ATIME) {
+ dif = (int) (d2->dstat.st_atime - d1->dstat.st_atime);
+ } else if (sort_opts == SORT_CTIME) {
+ dif = (int) (d2->dstat.st_ctime - d1->dstat.st_ctime);
+ } else if (sort_opts == SORT_MTIME) {
+ dif = (int) (d2->dstat.st_mtime - d1->dstat.st_mtime);
+ } else if (sort_opts == SORT_DIR) {
+ dif = S_ISDIR(d2->dstat.st_mode) - S_ISDIR(d1->dstat.st_mode);
+ /* } else if (sort_opts == SORT_VERSION) { */
+ /* } else if (sort_opts == SORT_EXT) { */
+ }
+
+ if (dif == 0) {
+ /* sort by name- may be a tie_breaker for time or size cmp */
+#ifdef CONFIG_LOCALE_SUPPORT
+ dif = strcoll(d1->name, d2->name);
#else
- fputs("--- -- ----- ", stdout);
-#endif
- wr(name, len);
- if (S_ISLNK(mode)) {
- wr(" -> ", 4);
- len = readlink(fullname, scratch, sizeof scratch);
- if (len > 0)
- fwrite(scratch, 1, len, stdout);
-#ifdef BB_FEATURE_LS_FILETYPES
- /* show type of destination */
- if (opts & DISP_FTYPE) {
- if (!stat(fullname, info)) {
- append = append_char(info->st_mode);
- if (append)
- fputc(append, stdout);
- }
- }
+ dif = strcmp(d1->name, d2->name);
#endif
+ }
+
+ if (all_fmt & SORT_ORDER_REVERSE) {
+ dif = -dif;
+ }
+ return (dif);
+}
+
+/*----------------------------------------------------------------------*/
+static void shellsort(struct dnode **dn, int size)
+{
+ struct dnode *temp;
+ int gap, i, j;
+
+ /* shell short the array */
+ if (dn == NULL || size < 2)
+ return;
+
+ for (gap = size / 2; gap > 0; gap /= 2) {
+ for (i = gap; i < size; i++) {
+ for (j = i - gap; j >= 0; j -= gap) {
+ if (sortcmp(dn[j], dn[j + gap]) <= 0)
+ break;
+ /* they are out of order, swap them */
+ temp = dn[j];
+ dn[j] = dn[j + gap];
+ dn[j + gap] = temp;
+ }
}
-#ifdef BB_FEATURE_LS_FILETYPES
- else if (append)
- wr(&append, 1);
+ }
+}
#endif
+
+/*----------------------------------------------------------------------*/
+static void showfiles(struct dnode **dn, int nfiles)
+{
+ int i, ncols, nrows, row, nc;
+ int column = 0;
+ int nexttab = 0;
+ int column_width = 0; /* for STYLE_LONG and STYLE_SINGLE not used */
+
+ if (dn == NULL || nfiles < 1)
+ return;
+
+ if (all_fmt & STYLE_ONE_RECORD_FLAG) {
+ ncols = 1;
} else {
- static short nexttab = 0;
-
- /* sort out column alignment */
- if (column == 0); /* nothing to do */
- else if (display_fmt == FMT_SINGLE)
- newline();
- else {
- if (nexttab + column_width > terminal_width
-#ifndef BB_FEATURE_AUTOWIDTH
- || nexttab + len >= terminal_width
-#endif
- )
- newline();
- else
- tab(nexttab);
- }
- /* work out where next column starts */
-#ifdef BB_FEATURE_AUTOWIDTH
- /* we know the calculated width is big enough */
- nexttab = column + column_width + COLUMN_GAP;
-#else
- /* might cover more than one fixed-width column */
- nexttab = column;
- do
- nexttab += column_width + COLUMN_GAP;
- while (nexttab < (column + len + COLUMN_GAP));
-#endif
- /* now write the data */
- wr(name, len);
- column = column + len;
-#ifdef BB_FEATURE_LS_FILETYPES
- if (append)
- wr(&append, 1), column++;
+ /* find the longest file name- use that as the column width */
+ for (i = 0; i < nfiles; i++) {
+ int len = strlen(dn[i]->name) +
+#ifdef CONFIG_SELINUX
+ ((all_fmt & LIST_CONTEXT) ? 33 : 0) +
#endif
+ ((all_fmt & LIST_INO) ? 8 : 0) +
+ ((all_fmt & LIST_BLOCKS) ? 5 : 0);
+ if (column_width < len)
+ column_width = len;
+ }
+ column_width += tabstops;
+ ncols = (int) (terminal_width / column_width);
}
-}
-/**
- **
- ** List the given file or directory, expanding a directory
- ** to show its contents if required
- **
- **/
+ if (ncols > 1) {
+ nrows = nfiles / ncols;
+ if ((nrows * ncols) < nfiles)
+ nrows++; /* round up fractionals */
+ } else {
+ nrows = nfiles;
+ ncols = 1;
+ }
+
+ for (row = 0; row < nrows; row++) {
+ for (nc = 0; nc < ncols; nc++) {
+ /* reach into the array based on the column and row */
+ i = (nc * nrows) + row; /* assume display by column */
+ if (all_fmt & DISP_ROWS)
+ i = (row * ncols) + nc; /* display across row */
+ if (i < nfiles) {
+ if (column > 0) {
+ nexttab -= column;
+ while (nexttab--) {
+ putchar(' ');
+ column++;
+ }
+ }
+ nexttab = column + column_width;
+ column += list_single(dn[i]);
+ }
+ }
+ putchar('\n');
+ column = 0;
+ }
+}
-static int list_item(const char *name)
+/*----------------------------------------------------------------------*/
+static void showdirs(struct dnode **dn, int ndirs, int first)
{
- struct stat info;
- DIR *dir;
- struct dirent *entry;
- char fullname[MAXNAMLEN + 1], *fnend;
+ int i, nfiles;
+ struct dnode **subdnp;
- if (lstat(name, &info))
- goto listerr;
+#ifdef CONFIG_FEATURE_LS_RECURSIVE
+ int dndirs;
+ struct dnode **dnd;
+#endif
+
+ if (dn == NULL || ndirs < 1)
+ return;
- if (!S_ISDIR(info.st_mode) || (opts & DIR_NOLIST)) {
-#ifdef BB_FEATURE_AUTOWIDTH
- column_width = toplevel_column_width;
+ for (i = 0; i < ndirs; i++) {
+ if (all_fmt & (DISP_DIRNAME | DISP_RECURSIVE)) {
+ if (!first)
+ printf("\n");
+ first = 0;
+ printf("%s:\n", dn[i]->fullname);
+ }
+ subdnp = list_dir(dn[i]->fullname);
+ nfiles = countfiles(subdnp);
+ if (nfiles > 0) {
+ /* list all files at this level */
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+ shellsort(subdnp, nfiles);
+#endif
+ showfiles(subdnp, nfiles);
+#ifdef CONFIG_FEATURE_LS_RECURSIVE
+ if (all_fmt & DISP_RECURSIVE) {
+ /* recursive- list the sub-dirs */
+ dnd = splitdnarray(subdnp, nfiles, SPLIT_SUBDIR);
+ dndirs = countsubdirs(subdnp, nfiles);
+ if (dndirs > 0) {
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+ shellsort(dnd, dndirs);
#endif
- list_single(name, &info, name);
- return 0;
+ showdirs(dnd, dndirs, 0);
+ free(dnd); /* free the array of dnode pointers to the dirs */
+ }
+ }
+ dfree(subdnp); /* free the dnodes and the fullname mem */
+#endif
+ }
}
+}
+
+/*----------------------------------------------------------------------*/
+static struct dnode **list_dir(const char *path)
+{
+ struct dnode *dn, *cur, **dnp;
+ struct dirent *entry;
+ DIR *dir;
+ int i, nfiles;
- /* Otherwise, it's a directory we want to list the contents of */
+ if (path == NULL)
+ return (NULL);
- if (opts & DISP_DIRNAME) { /* identify the directory */
- if (column)
- wr("\n\n", 2), column = 0;
- wr(name, strlen(name));
- wr(":\n", 2);
+ dn = NULL;
+ nfiles = 0;
+ dir = opendir(path);
+ if (dir == NULL) {
+ bb_perror_msg("%s", path);
+ status = EXIT_FAILURE;
+ return (NULL); /* could not open the dir */
}
-
- dir = opendir(name);
- if (!dir)
- goto listerr;
-#ifdef BB_FEATURE_AUTOWIDTH
- column_width = 0;
while ((entry = readdir(dir)) != NULL) {
- short w = strlen(entry->d_name);
+ char *fullname;
- if (column_width < w)
- column_width = w;
+ /* are we going to list the file- it may be . or .. or a hidden file */
+ if (entry->d_name[0] == '.') {
+ if ((entry->d_name[1] == 0 || (
+ entry->d_name[1] == '.'
+ && entry->d_name[2] == 0))
+ && !(all_fmt & DISP_DOT))
+ continue;
+ if (!(all_fmt & DISP_HIDDEN))
+ continue;
+ }
+ fullname = concat_path_file(path, entry->d_name);
+ cur = my_stat(fullname, strrchr(fullname, '/') + 1);
+ if (!cur)
+ continue;
+ cur->next = dn;
+ dn = cur;
+ nfiles++;
}
-#ifdef HAS_REWINDDIR
- rewinddir(dir);
-#else
closedir(dir);
- dir = opendir(name);
- if (!dir)
- goto listerr;
+
+ /* now that we know how many files there are
+ ** allocate memory for an array to hold dnode pointers
+ */
+ if (dn == NULL)
+ return (NULL);
+ dnp = dnalloc(nfiles);
+ for (i = 0, cur = dn; i < nfiles; i++) {
+ dnp[i] = cur; /* save pointer to node in array */
+ cur = cur->next;
+ }
+
+ return (dnp);
+}
+
+/*----------------------------------------------------------------------*/
+static int list_single(struct dnode *dn)
+{
+ int i, column = 0;
+
+#ifdef CONFIG_FEATURE_LS_USERNAME
+ char scratch[16];
+#endif
+#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
+ char *filetime;
+ time_t ttime, age;
#endif
+#if defined(CONFIG_FEATURE_LS_FILETYPES) || defined (CONFIG_FEATURE_LS_COLOR)
+ struct stat info;
+ char append;
#endif
- /* List the contents */
+ if (dn->fullname == NULL)
+ return (0);
- strcpy(fullname, name); /* *** ignore '.' by itself */
- fnend = fullname + strlen(fullname);
- if (fnend[-1] != '/')
- *fnend++ = '/';
+#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
+ ttime = dn->dstat.st_mtime; /* the default time */
+ if (all_fmt & TIME_ACCESS)
+ ttime = dn->dstat.st_atime;
+ if (all_fmt & TIME_CHANGE)
+ ttime = dn->dstat.st_ctime;
+ filetime = ctime(&ttime);
+#endif
+#ifdef CONFIG_FEATURE_LS_FILETYPES
+ append = append_char(dn->dstat.st_mode);
+#endif
- while ((entry = readdir(dir)) != NULL) {
- const char *en = entry->d_name;
-
- if (en[0] == '.') {
- if (!en[1] || (en[1] == '.' && !en[2])) { /* . or .. */
- if (!(opts & DISP_DOT))
- continue;
- } else if (!(opts & DISP_HIDDEN))
- continue;
- }
- /* FIXME: avoid stat if not required */
- strcpy(fnend, entry->d_name);
- if (lstat(fullname, &info))
- goto direrr; /* (shouldn't fail) */
- list_single(entry->d_name, &info, fullname);
- }
- closedir(dir);
+ for (i = 0; i <= 31; i++) {
+ switch (all_fmt & (1 << i)) {
+ case LIST_INO:
+ column += printf("%7ld ", (long int) dn->dstat.st_ino);
+ break;
+ case LIST_BLOCKS:
+#if _FILE_OFFSET_BITS == 64
+ column += printf("%4lld ", dn->dstat.st_blocks >> 1);
+#else
+ column += printf("%4ld ", dn->dstat.st_blocks >> 1);
+#endif
+ break;
+ case LIST_MODEBITS:
+ column += printf("%-10s ", (char *) bb_mode_string(dn->dstat.st_mode));
+ break;
+ case LIST_NLINKS:
+ column += printf("%4ld ", (long) dn->dstat.st_nlink);
+ break;
+ case LIST_ID_NAME:
+#ifdef CONFIG_FEATURE_LS_USERNAME
+ my_getpwuid(scratch, dn->dstat.st_uid, sizeof(scratch));
+ printf("%-8.8s ", scratch);
+ my_getgrgid(scratch, dn->dstat.st_gid, sizeof(scratch));
+ printf("%-8.8s", scratch);
+ column += 17;
+ break;
+#endif
+ case LIST_ID_NUMERIC:
+ column += printf("%-8d %-8d", dn->dstat.st_uid, dn->dstat.st_gid);
+ break;
+ case LIST_SIZE:
+ case LIST_DEV:
+ if (S_ISBLK(dn->dstat.st_mode) || S_ISCHR(dn->dstat.st_mode)) {
+ column += printf("%4d, %3d ", (int) major(dn->dstat.st_rdev),
+ (int) minor(dn->dstat.st_rdev));
+ } else {
+#ifdef CONFIG_FEATURE_HUMAN_READABLE
+ if (all_fmt & LS_DISP_HR) {
+ column += printf("%9s ",
+ make_human_readable_str(dn->dstat.st_size, 1, 0));
+ } else
+#endif
+ {
+#if _FILE_OFFSET_BITS == 64
+ column += printf("%9lld ", (long long) dn->dstat.st_size);
+#else
+ column += printf("%9ld ", dn->dstat.st_size);
+#endif
+ }
+ }
+ break;
+#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
+ case LIST_FULLTIME:
+ printf("%24.24s ", filetime);
+ column += 25;
+ break;
+ case LIST_DATE_TIME:
+ if ((all_fmt & LIST_FULLTIME) == 0) {
+ age = time(NULL) - ttime;
+ printf("%6.6s ", filetime + 4);
+ if (age < 3600L * 24 * 365 / 2 && age > -15 * 60) {
+ /* hh:mm if less than 6 months old */
+ printf("%5.5s ", filetime + 11);
+ } else {
+ printf(" %4.4s ", filetime + 20);
+ }
+ column += 13;
+ }
+ break;
+#endif
+#ifdef CONFIG_SELINUX
+ case LIST_CONTEXT:
+ {
+ char context[64];
+ int len = sizeof(context);
+ if(security_sid_to_context(dn->sid, context, &len))
+ {
+ strcpy(context, "unknown");
+ len = 7;
+ }
+ printf("%-32s ", context);
+ column += MAX(33, len);
+ }
+ break;
+#endif
+ case LIST_FILENAME:
+#ifdef CONFIG_FEATURE_LS_COLOR
+ errno = 0;
+ if (show_color && !lstat(dn->fullname, &info)) {
+ printf("\033[%d;%dm", bgcolor(info.st_mode),
+ fgcolor(info.st_mode));
+ }
+#endif
+ column += printf("%s", dn->name);
+#ifdef CONFIG_FEATURE_LS_COLOR
+ if (show_color) {
+ printf("\033[0m");
+ }
+#endif
+ break;
+ case LIST_SYMLINK:
+ if (S_ISLNK(dn->dstat.st_mode)) {
+ char *lpath = xreadlink(dn->fullname);
- if (opts & DISP_DIRNAME) { /* separate the directory */
- if (column) {
- wr("\n", 1);
+ if (lpath) {
+ printf(" -> ");
+#if defined(CONFIG_FEATURE_LS_FILETYPES) || defined (CONFIG_FEATURE_LS_COLOR)
+ if (!stat(dn->fullname, &info)) {
+ append = append_char(info.st_mode);
+ }
+#endif
+#ifdef CONFIG_FEATURE_LS_COLOR
+ if (show_color) {
+ errno = 0;
+ printf("\033[%d;%dm", bgcolor(info.st_mode),
+ fgcolor(info.st_mode));
+ }
+#endif
+ column += printf("%s", lpath) + 4;
+#ifdef CONFIG_FEATURE_LS_COLOR
+ if (show_color) {
+ printf("\033[0m");
+ }
+#endif
+ free(lpath);
+ }
+ }
+ break;
+#ifdef CONFIG_FEATURE_LS_FILETYPES
+ case LIST_FILETYPE:
+ if (append != '\0') {
+ printf("%1c", append);
+ column++;
+ }
+ break;
+#endif
}
- wr("\n", 1);
- column = 0;
}
- return 0;
-
- direrr:
- closedir(dir);
- listerr:
- newline();
- perror(name);
- return 1;
+ return column;
}
-static const char ls_usage[] = "ls [-1a"
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- "c"
+/*----------------------------------------------------------------------*/
+
+/* "[-]Cadil1", POSIX mandated options, busybox always supports */
+/* "[-]gnsx", POSIX non-mandated options, busybox always supports */
+/* "[-]Ak" GNU options, busybox always supports */
+/* "[-]FLRctur", POSIX mandated options, busybox optionally supports */
+/* "[-]p", POSIX non-mandated options, busybox optionally supports */
+/* "[-]SXvThw", GNU options, busybox optionally supports */
+/* "[-]K", SELinux mandated options, busybox optionally supports */
+/* "[-]e", I think we made this one up */
+
+#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
+# define LS_STR_TIMESTAMPS "cetu"
+#else
+# define LS_STR_TIMESTAMPS ""
+#endif
+
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+# define LS_STR_SORTFILES "SXrv"
+#else
+# define LS_STR_SORTFILES ""
+#endif
+
+#ifdef CONFIG_FEATURE_LS_FILETYPES
+# define LS_STR_FILETYPES "Fp"
+#else
+# define LS_STR_FILETYPES ""
+#endif
+
+#ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
+# define LS_STR_FOLLOW_LINKS "L"
+#else
+# define LS_STR_FOLLOW_LINKS ""
+#endif
+
+#ifdef CONFIG_FEATURE_LS_RECURSIVE
+# define LS_STR_RECURSIVE "R"
+#else
+# define LS_STR_RECURSIVE ""
+#endif
+
+#ifdef CONFIG_FEATURE_HUMAN_READABLE
+# define LS_STR_HUMAN_READABLE "h"
+#else
+# define LS_STR_HUMAN_READABLE ""
+#endif
+
+#ifdef CONFIG_SELINUX
+# define LS_STR_SELINUX "K"
+#else
+# define LS_STR_SELINUX ""
#endif
- "d"
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- "e"
+
+#ifdef CONFIG_FEATURE_AUTOWIDTH
+# define LS_STR_AUTOWIDTH "T:w:"
+#else
+# define LS_STR_AUTOWIDTH ""
#endif
- "ln"
-#ifdef BB_FEATURE_LS_FILETYPES
- "p"
+
+static const char ls_options[]="Cadil1gnsxAk" \
+ LS_STR_TIMESTAMPS \
+ LS_STR_SORTFILES \
+ LS_STR_FILETYPES \
+ LS_STR_FOLLOW_LINKS \
+ LS_STR_RECURSIVE \
+ LS_STR_HUMAN_READABLE \
+ LS_STR_SELINUX \
+ LS_STR_AUTOWIDTH;
+
+#define LIST_MASK_TRIGGER 0
+#define STYLE_MASK_TRIGGER STYLE_MASK
+#define SORT_MASK_TRIGGER SORT_MASK
+#define DISP_MASK_TRIGGER DISP_ROWS
+#define TIME_MASK_TRIGGER TIME_MASK
+
+static const unsigned opt_flags[] = {
+ LIST_SHORT | STYLE_COLUMNS, /* C */
+ DISP_HIDDEN | DISP_DOT, /* a */
+ DISP_NOLIST, /* d */
+ LIST_INO, /* i */
+ LIST_LONG | STYLE_LONG, /* l - remember LS_DISP_HR in mask! */
+ LIST_SHORT | STYLE_SINGLE, /* 1 */
+ 0, /* g - ingored */
+ LIST_ID_NUMERIC, /* n */
+ LIST_BLOCKS, /* s */
+ DISP_ROWS, /* x */
+ DISP_HIDDEN, /* A */
+#ifdef CONFIG_SELINUX
+ LIST_CONTEXT, /* k */
+#else
+ 0, /* k - ingored */
#endif
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- "u"
+#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
+# ifdef CONFIG_FEATURE_LS_SORTFILES
+ TIME_CHANGE | SORT_CTIME, /* c */
+# else
+ TIME_CHANGE, /* c */
+# endif
+ LIST_FULLTIME, /* e */
+# ifdef CONFIG_FEATURE_LS_SORTFILES
+ SORT_MTIME, /* t */
+# else
+ 0, /* t - ignored -- is this correct? */
+# endif
+# ifdef CONFIG_FEATURE_LS_SORTFILES
+ TIME_ACCESS | SORT_ATIME, /* u */
+# else
+ TIME_ACCESS, /* u */
+# endif
#endif
- "xAC"
-#ifdef BB_FEATURE_LS_FILETYPES
- "F"
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+ SORT_SIZE, /* S */
+ SORT_EXT, /* X */
+ SORT_ORDER_REVERSE, /* r */
+ SORT_VERSION, /* v */
#endif
- "] [filenames...]\n\n"
- "Options:\n"
- "\t-a\tdo not hide entries starting with .\n"
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- "\t-c\twith -l: show ctime (the time of last\n"
- "\t\tmodification of file status information)\n"
+#ifdef CONFIG_FEATURE_LS_FILETYPES
+ LIST_FILETYPE | LIST_EXEC, /* F */
+ LIST_FILETYPE, /* p */
#endif
- "\t-d\tlist directory entries instead of contents\n"
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- "\t-e\tlist both full date and full time\n"
+#ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
+ FOLLOW_LINKS, /* L */
#endif
- "\t-l\tuse a long listing format\n"
- "\t-n\tlist numeric UIDs and GIDs instead of names\n"
-#ifdef BB_FEATURE_LS_FILETYPES
- "\t-p\tappend indicator (one of /=@|) to entries\n"
+#ifdef CONFIG_FEATURE_LS_RECURSIVE
+ DISP_RECURSIVE, /* R */
#endif
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- "\t-u\twith -l: show access time (the time of last\n"
- "\t\taccess of the file)\n"
+#ifdef CONFIG_FEATURE_HUMAN_READABLE
+ LS_DISP_HR, /* h */
#endif
- "\t-x\tlist entries by lines instead of by columns\n"
- "\t-A\tdo not list implied . and ..\n"
- "\t-C\tlist entries by columns\n"
-#ifdef BB_FEATURE_LS_FILETYPES
- "\t-F\tappend indicator (one of */=@|) to entries\n"
+#ifdef CONFIG_SELINUX
+ LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME, /* K */
#endif
- ;
+ (1U<<31)
+};
+
+
+/*----------------------------------------------------------------------*/
extern int ls_main(int argc, char **argv)
{
- int argi = 1, i;
+ struct dnode **dnd;
+ struct dnode **dnf;
+ struct dnode **dnp;
+ struct dnode *dn;
+ struct dnode *cur;
+ long opt;
+ int nfiles = 0;
+ int dnfiles;
+ int dndirs;
+ int oi;
+ int ac;
+ int i;
+ char **av;
+#ifdef CONFIG_FEATURE_AUTOWIDTH
+ char *tabstops_str = NULL;
+ char *terminal_width_str = NULL;
+#endif
+
+#ifdef CONFIG_SELINUX
+ is_flask_enabled_flag = is_flask_enabled();
+#endif
+
+ all_fmt = LIST_SHORT | DISP_NORMAL | STYLE_AUTO
+#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
+ | TIME_MOD
+#endif
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+ | SORT_NAME | SORT_ORDER_FORWARD
+#endif
+ ;
+
+#ifdef CONFIG_FEATURE_AUTOWIDTH
+ /* Obtain the terminal width. */
+ get_terminal_width_height(STDOUT_FILENO, &terminal_width, NULL);
+ /* Go one less... */
+ terminal_width--;
+#endif
+
+#ifdef CONFIG_FEATURE_LS_COLOR
+ if (isatty(STDOUT_FILENO))
+ show_color = 1;
+#endif
/* process options */
- while (argi < argc && argv[argi][0] == '-') {
- const char *p = &argv[argi][1];
-
- if (!*p)
- goto print_usage_message; /* "-" by itself not allowed */
- if (*p == '-') {
- if (!p[1]) { /* "--" forces end of options */
- argi++;
- break;
+#ifdef CONFIG_FEATURE_AUTOWIDTH
+ opt = bb_getopt_ulflags(argc, argv, ls_options, &tabstops_str, &terminal_width_str);
+ if (tabstops_str) {
+ tabstops = atoi(tabstops_str);
+ }
+ if (terminal_width_str) {
+ terminal_width = atoi(terminal_width_str);
+ }
+#else
+ opt = bb_getopt_ulflags(argc, argv, ls_options);
+#endif
+ for (i = 0; opt_flags[i] != (1U<<31); i++) {
+ if (opt & (1 << i)) {
+ unsigned int flags = opt_flags[i];
+ if (flags & LIST_MASK_TRIGGER) {
+ all_fmt &= ~LIST_MASK;
}
- /* it's a long option name - we don't support them */
- goto print_usage_message;
+ if (flags & STYLE_MASK_TRIGGER) {
+ all_fmt &= ~STYLE_MASK;
+ }
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+ if (flags & SORT_MASK_TRIGGER) {
+ all_fmt &= ~SORT_MASK;
+ }
+#endif
+ if (flags & DISP_MASK_TRIGGER) {
+ all_fmt &= ~DISP_MASK;
+ }
+#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
+ if (flags & TIME_MASK_TRIGGER) {
+ all_fmt &= ~TIME_MASK;
+ }
+#endif
+ if (flags & LIST_CONTEXT) {
+ all_fmt |= STYLE_SINGLE;
+ }
+#ifdef CONFIG_FEATURE_HUMAN_READABLE
+ if (opt == 'l') {
+ all_fmt &= ~LS_DISP_HR;
+ }
+#endif
+ all_fmt |= flags;
}
+ }
- while (*p)
- switch (*p++) {
- case 'l':
- display_fmt = FMT_LONG;
- break;
- case '1':
- display_fmt = FMT_SINGLE;
- break;
- case 'x':
- display_fmt = FMT_ROWS;
- break;
- case 'C':
- display_fmt = FMT_COLUMNS;
- break;
-#ifdef BB_FEATURE_LS_FILETYPES
- case 'p':
- opts |= DISP_FTYPE;
- break;
- case 'F':
- opts |= DISP_FTYPE | DISP_EXEC;
- break;
-#endif
- case 'A':
- opts |= DISP_HIDDEN;
- break;
- case 'a':
- opts |= DISP_HIDDEN | DISP_DOT;
- break;
- case 'n':
- opts |= DISP_NUMERIC;
- break;
- case 'd':
- opts |= DIR_NOLIST;
- break;
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- case 'u':
- time_fmt = TIME_ACCESS;
- break;
- case 'c':
- time_fmt = TIME_CHANGE;
- break;
- case 'e':
- opts |= DISP_FULLTIME;
- break;
-#endif
- default:
- goto print_usage_message;
- }
+ /* sort out which command line options take precedence */
+#ifdef CONFIG_FEATURE_LS_RECURSIVE
+ if (all_fmt & DISP_NOLIST)
+ all_fmt &= ~DISP_RECURSIVE; /* no recurse if listing only dir */
+#endif
+#if defined (CONFIG_FEATURE_LS_TIMESTAMPS) && defined (CONFIG_FEATURE_LS_SORTFILES)
+ if (all_fmt & TIME_CHANGE)
+ all_fmt = (all_fmt & ~SORT_MASK) | SORT_CTIME;
+ if (all_fmt & TIME_ACCESS)
+ all_fmt = (all_fmt & ~SORT_MASK) | SORT_ATIME;
+#endif
+ if ((all_fmt & STYLE_MASK) != STYLE_LONG) /* only for long list */
+ all_fmt &= ~(LIST_ID_NUMERIC|LIST_FULLTIME|LIST_ID_NAME|LIST_ID_NUMERIC);
+#ifdef CONFIG_FEATURE_LS_USERNAME
+ if ((all_fmt & STYLE_MASK) == STYLE_LONG && (all_fmt & LIST_ID_NUMERIC))
+ all_fmt &= ~LIST_ID_NAME; /* don't list names if numeric uid */
+#endif
+
+ /* choose a display format */
+ if ((all_fmt & STYLE_MASK) == STYLE_AUTO)
+#if STYLE_AUTO != 0
+ all_fmt = (all_fmt & ~STYLE_MASK)
+ | (isatty(STDOUT_FILENO) ? STYLE_COLUMNS : STYLE_SINGLE);
+#else
+ all_fmt |= (isatty(STDOUT_FILENO) ? STYLE_COLUMNS : STYLE_SINGLE);
+#endif
- argi++;
+ /*
+ * when there are no cmd line args we have to supply a default "." arg.
+ * we will create a second argv array, "av" that will hold either
+ * our created "." arg, or the real cmd line args. The av array
+ * just holds the pointers- we don't move the date the pointers
+ * point to.
+ */
+ ac = argc - optind; /* how many cmd line args are left */
+ if (ac < 1) {
+ av = (char **) xcalloc((size_t) 1, (size_t) (sizeof(char *)));
+ av[0] = bb_xstrdup(".");
+ ac = 1;
+ } else {
+ av = (char **) xcalloc((size_t) ac, (size_t) (sizeof(char *)));
+ for (oi = 0; oi < ac; oi++) {
+ av[oi] = argv[optind++]; /* copy pointer to real cmd line arg */
+ }
}
- /* choose a display format */
- if (display_fmt == FMT_AUTO)
- display_fmt = isatty(fileno(stdout)) ? FMT_COLUMNS : FMT_SINGLE;
- if (argi < argc - 1)
- opts |= DISP_DIRNAME; /* 2 or more items? label directories */
-#ifdef BB_FEATURE_AUTOWIDTH
- /* could add a -w option and/or TIOCGWINSZ call */
- if (terminal_width < 1)
- terminal_width = TERMINAL_WIDTH;
-
- for (i = argi; i < argc; i++) {
- int len = strlen(argv[i]);
-
- if (toplevel_column_width < len)
- toplevel_column_width = len;
+ /* now, everything is in the av array */
+ if (ac > 1)
+ all_fmt |= DISP_DIRNAME; /* 2 or more items? label directories */
+
+ /* stuff the command line file names into an dnode array */
+ dn = NULL;
+ for (oi = 0; oi < ac; oi++) {
+ char *fullname = bb_xstrdup(av[oi]);
+
+ cur = my_stat(fullname, fullname);
+ if (!cur)
+ continue;
+ cur->next = dn;
+ dn = cur;
+ nfiles++;
}
-#endif
- /* process files specified, or current directory if none */
- i = 0;
- if (argi == argc)
- i = list_item(".");
- while (argi < argc)
- i |= list_item(argv[argi++]);
- newline();
- exit(i);
+ /* now that we know how many files there are
+ ** allocate memory for an array to hold dnode pointers
+ */
+ dnp = dnalloc(nfiles);
+ for (i = 0, cur = dn; i < nfiles; i++) {
+ dnp[i] = cur; /* save pointer to node in array */
+ cur = cur->next;
+ }
- print_usage_message:
- usage(ls_usage);
- exit(FALSE);
+ if (all_fmt & DISP_NOLIST) {
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+ shellsort(dnp, nfiles);
+#endif
+ if (nfiles > 0)
+ showfiles(dnp, nfiles);
+ } else {
+ dnd = splitdnarray(dnp, nfiles, SPLIT_DIR);
+ dnf = splitdnarray(dnp, nfiles, SPLIT_FILE);
+ dndirs = countdirs(dnp, nfiles);
+ dnfiles = nfiles - dndirs;
+ if (dnfiles > 0) {
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+ shellsort(dnf, dnfiles);
+#endif
+ showfiles(dnf, dnfiles);
+ }
+ if (dndirs > 0) {
+#ifdef CONFIG_FEATURE_LS_SORTFILES
+ shellsort(dnd, dndirs);
+#endif
+ showdirs(dnd, dndirs, dnfiles == 0);
+ }
+ }
+ return (status);
}
projects / oweals / busybox.git / blobdiff