* 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
- * (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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/*
* 1. requires lstat (BSD) - how do you do it without?
*/
-enum {
- TERMINAL_WIDTH = 80, /* use 79 if terminal has linefold bug */
- COLUMN_GAP = 2, /* includes the file type char */
-};
+#include <getopt.h>
+#include "libbb.h"
-/************************************************************************/
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <termios.h>
-#include <sys/ioctl.h>
-#include "busybox.h"
-
-#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
-#include <time.h>
-#endif
+/* This is a NOEXEC applet. Be very careful! */
-#ifndef MAJOR
-#define MAJOR(dev) (((dev)>>8)&0xff)
-#define MINOR(dev) ((dev)&0xff)
-#endif
-/* what is the overall style of the listing */
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 */
-};
+
+TERMINAL_WIDTH = 80, /* use 79 if terminal has linefold bug */
+COLUMN_GAP = 2, /* includes the file type char */
+
+/* what is the overall style of the listing */
+STYLE_COLUMNS = 1 << 21, /* fill columns */
+STYLE_LONG = 2 << 21, /* one record per line, extended info */
+STYLE_SINGLE = 3 << 21, /* one record per line */
+STYLE_MASK = STYLE_SINGLE,
/* 51306 lrwxrwxrwx 1 root root 2 May 11 01:43 /bin/view -> vi* */
/* what file information will be listed */
-#define LIST_INO (1<<0)
-#define LIST_BLOCKS (1<<1)
-#define LIST_MODEBITS (1<<2)
-#define LIST_NLINKS (1<<3)
-#define LIST_ID_NAME (1<<4)
-#define LIST_ID_NUMERIC (1<<5)
-#define LIST_SIZE (1<<6)
-#define LIST_DEV (1<<7)
-#define LIST_DATE_TIME (1<<8)
-#define LIST_FULLTIME (1<<9)
-#define LIST_FILENAME (1<<10)
-#define LIST_SYMLINK (1<<11)
-#define LIST_FILETYPE (1<<12)
-#define LIST_EXEC (1<<13)
+LIST_INO = 1 << 0,
+LIST_BLOCKS = 1 << 1,
+LIST_MODEBITS = 1 << 2,
+LIST_NLINKS = 1 << 3,
+LIST_ID_NAME = 1 << 4,
+LIST_ID_NUMERIC = 1 << 5,
+LIST_CONTEXT = 1 << 6,
+LIST_SIZE = 1 << 7,
+LIST_DEV = 1 << 8,
+LIST_DATE_TIME = 1 << 9,
+LIST_FULLTIME = 1 << 10,
+LIST_FILENAME = 1 << 11,
+LIST_SYMLINK = 1 << 12,
+LIST_FILETYPE = 1 << 13,
+LIST_EXEC = 1 << 14,
+LIST_MASK = (LIST_EXEC << 1) - 1,
/* what files will be displayed */
-#define DISP_NORMAL (0) /* show normal filenames */
-#define DISP_DIRNAME (1<<0) /* 2 or more items? label directories */
-#define DISP_HIDDEN (1<<1) /* show filenames starting with . */
-#define DISP_DOT (1<<2) /* show . and .. */
-#define DISP_NOLIST (1<<3) /* show directory as itself, not contents */
-#define DISP_RECURSIVE (1<<4) /* show directory and everything below it */
-#define DISP_ROWS (1<<5) /* print across rows */
-
-#ifdef CONFIG_FEATURE_LS_SORTFILES
-/* how will the files be sorted */
-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
+DISP_DIRNAME = 1 << 15, /* 2 or more items? label directories */
+DISP_HIDDEN = 1 << 16, /* show filenames starting with . */
+DISP_DOT = 1 << 17, /* show . and .. */
+DISP_NOLIST = 1 << 18, /* show directory as itself, not contents */
+DISP_RECURSIVE = 1 << 19, /* show directory and everything below it */
+DISP_ROWS = 1 << 20, /* print across rows */
+DISP_MASK = ((DISP_ROWS << 1) - 1) & ~(DISP_DIRNAME - 1),
+
+/* how will the files be sorted (CONFIG_FEATURE_LS_SORTFILES) */
+SORT_FORWARD = 0, /* sort in reverse order */
+SORT_REVERSE = 1 << 27, /* sort in reverse order */
+
+SORT_NAME = 0, /* sort by file name */
+SORT_SIZE = 1 << 28, /* sort by file size */
+SORT_ATIME = 2 << 28, /* sort by last access time */
+SORT_CTIME = 3 << 28, /* sort by last change time */
+SORT_MTIME = 4 << 28, /* sort by last modification time */
+SORT_VERSION = 5 << 28, /* sort by version */
+SORT_EXT = 6 << 28, /* sort by file name extension */
+SORT_DIR = 7 << 28, /* sort by file or directory */
+SORT_MASK = (7 << 28) * ENABLE_FEATURE_LS_SORTFILES,
-#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
/* which of the three times will be used */
-static const int TIME_MOD = 0;
-static const int TIME_CHANGE = 1;
-static const int TIME_ACCESS = 2;
-#endif
+TIME_CHANGE = (1 << 23) * ENABLE_FEATURE_LS_TIMESTAMPS,
+TIME_ACCESS = (1 << 24) * ENABLE_FEATURE_LS_TIMESTAMPS,
+TIME_MASK = (3 << 23) * ENABLE_FEATURE_LS_TIMESTAMPS,
-#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)
+FOLLOW_LINKS = (1 << 25) * ENABLE_FEATURE_LS_FOLLOWLINKS,
-static const int SPLIT_DIR = 0;
-static const int SPLIT_FILE = 1;
-static const int SPLIT_SUBDIR = 2;
+LS_DISP_HR = (1 << 26) * ENABLE_FEATURE_HUMAN_READABLE,
-#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
-#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
+LIST_SHORT = LIST_FILENAME,
+LIST_LONG = LIST_MODEBITS | LIST_NLINKS | LIST_ID_NAME | LIST_SIZE | \
+ LIST_DATE_TIME | LIST_FILENAME | LIST_SYMLINK,
-#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
+SPLIT_DIR = 1,
+SPLIT_FILE = 0,
+SPLIT_SUBDIR = 2,
-/* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
-#ifdef CONFIG_FEATURE_LS_COLOR
-static int show_color = 0;
+};
+#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
+#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
+#define APPCHAR(mode) ("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
#define COLOR(mode) ("\000\043\043\043\042\000\043\043"\
- "\000\000\044\000\043\000\000\040" [TYPEINDEX(mode)])
+ "\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)])
+ "\00\00\01\00\01\00\00\01" [TYPEINDEX(mode)])
+
+/* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
+#if ENABLE_FEATURE_LS_COLOR
+static smallint show_color;
+/* long option entry used only for --color, which has no short option
+ * equivalent */
+static const char ls_color_opt[] ALIGN1 =
+ "color\0" Optional_argument "\xff" /* no short equivalent */
+ ;
+#else
+enum { show_color = 0 };
#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 */
- struct dnode *next; /* point at the next node */
+struct dnode { /* the basic node */
+ const char *name; /* the dir entry name */
+ const char *fullname; /* the dir entry name */
+ int allocated;
+ struct stat dstat; /* the file stat info */
+ USE_SELINUX(security_context_t sid;)
+ struct dnode *next; /* point at the next node */
};
typedef struct dnode dnode_t;
static struct dnode **dnalloc(int);
static int list_single(struct dnode *);
-static unsigned int disp_opts;
-static unsigned int style_fmt;
-static unsigned int list_fmt;
-
-#ifdef CONFIG_FEATURE_LS_SORTFILES
-static unsigned int sort_opts;
-static unsigned int sort_order;
-#endif
-#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
-static unsigned int time_fmt;
-#endif
-#ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
-static unsigned int follow_links = FALSE;
-#endif
+static unsigned all_fmt;
-#ifdef CONFIG_FEATURE_AUTOWIDTH
-static unsigned short terminal_width = TERMINAL_WIDTH;
-static unsigned short tabstops = COLUMN_GAP;
+#if ENABLE_FEATURE_AUTOWIDTH
+static unsigned tabstops = COLUMN_GAP;
+static unsigned terminal_width = TERMINAL_WIDTH;
#else
-#define tabstops COLUMN_GAP
-#define terminal_width TERMINAL_WIDTH
+enum {
+ tabstops = COLUMN_GAP,
+ terminal_width = TERMINAL_WIDTH,
+};
#endif
static int status = EXIT_SUCCESS;
-#ifdef CONFIG_FEATURE_HUMAN_READABLE
-static unsigned long ls_disp_hr = 0;
-#endif
-
-static struct dnode *my_stat(char *fullname, char *name)
+static struct dnode *my_stat(const char *fullname, const char *name, int force_follow)
{
struct stat dstat;
struct dnode *cur;
+ USE_SELINUX(security_context_t sid = NULL;)
-#ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
- if (follow_links) {
+ if ((all_fmt & FOLLOW_LINKS) || force_follow) {
+#if ENABLE_SELINUX
+ if (is_selinux_enabled()) {
+ getfilecon(fullname, &sid);
+ }
+#endif
if (stat(fullname, &dstat)) {
- perror_msg("%s", fullname);
+ bb_simple_perror_msg(fullname);
status = EXIT_FAILURE;
return 0;
}
- } else
+ } else {
+#if ENABLE_SELINUX
+ if (is_selinux_enabled()) {
+ lgetfilecon(fullname, &sid);
+ }
#endif
- if (lstat(fullname, &dstat)) {
- perror_msg("%s", fullname);
- status = EXIT_FAILURE;
- return 0;
+ if (lstat(fullname, &dstat)) {
+ bb_simple_perror_msg(fullname);
+ status = EXIT_FAILURE;
+ return 0;
+ }
}
- cur = (struct dnode *) xmalloc(sizeof(struct dnode));
+ cur = xmalloc(sizeof(struct dnode));
cur->fullname = fullname;
cur->name = name;
cur->dstat = dstat;
+ USE_SELINUX(cur->sid = sid;)
return cur;
}
-/*----------------------------------------------------------------------*/
-#ifdef CONFIG_FEATURE_LS_COLOR
+#if ENABLE_FEATURE_LS_COLOR
static char fgcolor(mode_t mode)
{
/* Check wheter the file is existing (if so, color it red!) */
- if (errno == ENOENT) {
+ if (errno == ENOENT)
return '\037';
- }
- if (LIST_EXEC && S_ISREG(mode)
- && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+ if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
return COLOR(0xF000); /* File is executable ... */
return COLOR(mode);
}
-/*----------------------------------------------------------------------*/
static char bgcolor(mode_t mode)
{
- if (LIST_EXEC && S_ISREG(mode)
- && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+ if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
return ATTR(0xF000); /* File is executable ... */
return ATTR(mode);
}
#endif
-/*----------------------------------------------------------------------*/
-#if defined(CONFIG_FEATURE_LS_FILETYPES) || defined(CONFIG_FEATURE_LS_COLOR)
+#if ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
static char append_char(mode_t mode)
{
- if (!(list_fmt & LIST_FILETYPE))
+ if (!(all_fmt & LIST_FILETYPE))
+ return '\0';
+ if (S_ISDIR(mode))
+ return '/';
+ if (!(all_fmt & LIST_EXEC))
return '\0';
- if ((list_fmt & LIST_EXEC) && S_ISREG(mode)
- && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+ if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
return '*';
return APPCHAR(mode);
}
#endif
-/*----------------------------------------------------------------------*/
-static int is_subdir(struct dnode *dn)
-{
- return (S_ISDIR(dn->dstat.st_mode) && strcmp(dn->name, ".") != 0 &&
- strcmp(dn->name, "..") != 0);
-}
-
-static int countdirs(struct dnode **dn, int nfiles)
+#define countdirs(A, B) count_dirs((A), (B), 1)
+#define countsubdirs(A, B) count_dirs((A), (B), 0)
+static int count_dirs(struct dnode **dn, int nfiles, int notsubdirs)
{
int i, dirs;
- if (dn == NULL || nfiles < 1)
- return (0);
+ if (!dn)
+ return 0;
dirs = 0;
for (i = 0; i < nfiles; i++) {
- if (S_ISDIR(dn[i]->dstat.st_mode))
+ const char *name;
+ if (!S_ISDIR(dn[i]->dstat.st_mode))
+ continue;
+ name = dn[i]->name;
+ if (notsubdirs
+ || name[0]!='.' || (name[1] && (name[1]!='.' || name[2]))
+ ) {
dirs++;
+ }
}
- return (dirs);
-}
-
-static int countsubdirs(struct dnode **dn, int nfiles)
-{
- int i, subdirs;
-
- if (dn == NULL || nfiles < 1)
- return 0;
- subdirs = 0;
- for (i = 0; i < nfiles; i++)
- if (is_subdir(dn[i]))
- subdirs++;
- return subdirs;
+ return dirs;
}
static int countfiles(struct dnode **dnp)
struct dnode *cur;
if (dnp == NULL)
- return (0);
+ return 0;
nfiles = 0;
- for (cur = dnp[0]; cur->next != NULL; cur = cur->next)
+ for (cur = dnp[0]; cur->next; cur = cur->next)
nfiles++;
nfiles++;
- return (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);
+ return NULL;
- p = (struct dnode **) xcalloc((size_t) num,
- (size_t) (sizeof(struct dnode *)));
- return (p);
+ return xzalloc(num * sizeof(struct dnode *));
}
-#ifdef CONFIG_FEATURE_LS_RECURSIVE
-static void dfree(struct dnode **dnp)
+#if ENABLE_FEATURE_LS_RECURSIVE
+static void dfree(struct dnode **dnp, int nfiles)
{
- struct dnode *cur, *next;
+ int i;
if (dnp == NULL)
return;
- cur = dnp[0];
- while (cur != NULL) {
- free(cur->fullname); /* free the filename */
- next = cur->next;
+ for (i = 0; i < nfiles; i++) {
+ struct dnode *cur = dnp[i];
+ if (cur->allocated)
+ free((char*)cur->fullname); /* free the filename */
free(cur); /* free the dnode */
- cur = next;
}
free(dnp); /* free the array holding the dnode pointers */
}
+#else
+#define dfree(...) ((void)0)
#endif
static struct dnode **splitdnarray(struct dnode **dn, int nfiles, int which)
struct dnode **dnp;
if (dn == NULL || nfiles < 1)
- return (NULL);
+ return NULL;
/* count how many dirs and regular files there are */
if (which == SPLIT_SUBDIR)
/* copy the entrys into the file or dir array */
for (d = i = 0; i < nfiles; i++) {
- if (which == SPLIT_DIR) {
- if (S_ISDIR(dn[i]->dstat.st_mode)) {
- dnp[d++] = dn[i];
- } /* else skip the file */
- } else if (which == SPLIT_SUBDIR) {
- if (is_subdir(dn[i])) {
- dnp[d++] = dn[i];
- } /* else skip the file or dir */
- } else {
- if (!(S_ISDIR(dn[i]->dstat.st_mode))) {
+ if (S_ISDIR(dn[i]->dstat.st_mode)) {
+ const char *name;
+ if (!(which & (SPLIT_DIR|SPLIT_SUBDIR)))
+ continue;
+ name = dn[i]->name;
+ if ((which & SPLIT_DIR)
+ || name[0]!='.' || (name[1] && (name[1]!='.' || name[2]))
+ ) {
dnp[d++] = dn[i];
- } /* else skip the dir */
+ }
+ } else if (!(which & (SPLIT_DIR|SPLIT_SUBDIR))) {
+ dnp[d++] = dn[i];
}
}
- return (dnp);
+ return dnp;
}
-/*----------------------------------------------------------------------*/
-#ifdef CONFIG_FEATURE_LS_SORTFILES
-static int sortcmp(struct dnode *d1, struct dnode *d2)
+#if ENABLE_FEATURE_LS_SORTFILES
+static int sortcmp(const void *a, const void *b)
{
- int cmp, dif;
-
- cmp = 0;
+ struct dnode *d1 = *(struct dnode **)a;
+ struct dnode *d2 = *(struct dnode **)b;
+ unsigned sort_opts = all_fmt & SORT_MASK;
+ int dif;
+
+ dif = 0; /* assume SORT_NAME */
+ // TODO: use pre-initialized function pointer
+ // instead of branch forest
if (sort_opts == SORT_SIZE) {
- dif = (int) (d1->dstat.st_size - d2->dstat.st_size);
+ dif = (int) (d2->dstat.st_size - d1->dstat.st_size);
} else if (sort_opts == SORT_ATIME) {
- dif = (int) (d1->dstat.st_atime - d2->dstat.st_atime);
+ dif = (int) (d2->dstat.st_atime - d1->dstat.st_atime);
} else if (sort_opts == SORT_CTIME) {
- dif = (int) (d1->dstat.st_ctime - d2->dstat.st_ctime);
+ dif = (int) (d2->dstat.st_ctime - d1->dstat.st_ctime);
} else if (sort_opts == SORT_MTIME) {
- dif = (int) (d1->dstat.st_mtime - d2->dstat.st_mtime);
+ dif = (int) (d2->dstat.st_mtime - d1->dstat.st_mtime);
} else if (sort_opts == SORT_DIR) {
- dif = S_ISDIR(d1->dstat.st_mode) - S_ISDIR(d2->dstat.st_mode);
+ 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) { */
- } else { /* assume SORT_NAME */
- dif = 0;
}
- if (dif > 0)
- cmp = -1;
- if (dif < 0)
- cmp = 1;
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
- dif = strcmp(d1->name, d2->name);
-#endif
- if (dif > 0)
- cmp = 1;
- if (dif < 0)
- cmp = -1;
+ /* sort by name - may be a tie_breaker for time or size cmp */
+ if (ENABLE_LOCALE_SUPPORT) dif = strcoll(d1->name, d2->name);
+ else dif = strcmp(d1->name, d2->name);
}
- if (sort_order == SORT_REVERSE) {
- cmp = -1 * cmp;
+ if (all_fmt & SORT_REVERSE) {
+ dif = -dif;
}
- return (cmp);
+ return dif;
}
-/*----------------------------------------------------------------------*/
-static void shellsort(struct dnode **dn, int size)
+static void dnsort(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;
- }
- }
- }
+ qsort(dn, size, sizeof(*dn), sortcmp);
}
+#else
+#define dnsort(dn, size) ((void)0)
#endif
-/*----------------------------------------------------------------------*/
+
static void showfiles(struct dnode **dn, int nfiles)
{
int i, ncols, nrows, row, nc;
if (dn == NULL || nfiles < 1)
return;
- switch (style_fmt) {
- case STYLE_LONG: /* one record per line, extended info */
- case STYLE_SINGLE: /* one record per line */
+ if (all_fmt & STYLE_LONG) {
ncols = 1;
- break;
- default:
- /* find the longest file name- use that as the column width */
- for (i = 0; i < nfiles; i++) {
- int len = strlen(dn[i]->name) +
- ((list_fmt & LIST_INO) ? 8 : 0) +
- ((list_fmt & LIST_BLOCKS) ? 5 : 0);
- if (column_width < len)
- column_width = len;
- }
- column_width += tabstops;
+ } else {
+ /* find the longest file name, use that as the column width */
+ for (i = 0; i < nfiles; i++) {
+ int len = strlen(dn[i]->name);
+ if (column_width < len)
+ column_width = len;
+ }
+ column_width += tabstops +
+ USE_SELINUX( ((all_fmt & LIST_CONTEXT) ? 33 : 0) + )
+ ((all_fmt & LIST_INO) ? 8 : 0) +
+ ((all_fmt & LIST_BLOCKS) ? 5 : 0);
ncols = (int) (terminal_width / column_width);
}
if (ncols > 1) {
nrows = nfiles / ncols;
- if ((nrows * ncols) < nfiles)
+ if (nrows * ncols < nfiles)
nrows++; /* round up fractionals */
} else {
nrows = nfiles;
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 (disp_opts & DISP_ROWS)
+ if (all_fmt & DISP_ROWS)
i = (row * ncols) + nc; /* display across row */
if (i < nfiles) {
if (column > 0) {
nexttab -= column;
- while (nexttab--) {
- putchar(' ');
- column++;
- }
- }
+ printf("%*s", nexttab, "");
+ column += nexttab;
+ }
nexttab = column + column_width;
column += list_single(dn[i]);
- }
+ }
}
putchar('\n');
column = 0;
}
}
-/*----------------------------------------------------------------------*/
-static void showdirs(struct dnode **dn, int ndirs)
+
+static void showdirs(struct dnode **dn, int ndirs, int first)
{
int i, nfiles;
struct dnode **subdnp;
-
-#ifdef CONFIG_FEATURE_LS_RECURSIVE
int dndirs;
struct dnode **dnd;
-#endif
if (dn == NULL || ndirs < 1)
return;
for (i = 0; i < ndirs; i++) {
- if (disp_opts & (DISP_DIRNAME | DISP_RECURSIVE)) {
- printf("\n%s:\n", dn[i]->fullname);
+ if (all_fmt & (DISP_DIRNAME | DISP_RECURSIVE)) {
+ if (!first)
+ bb_putchar('\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
+ dnsort(subdnp, nfiles);
showfiles(subdnp, nfiles);
-#ifdef CONFIG_FEATURE_LS_RECURSIVE
- if (disp_opts & 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
- showdirs(dnd, dndirs);
- free(dnd); /* free the array of dnode pointers to the dirs */
+ if (ENABLE_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) {
+ dnsort(dnd, dndirs);
+ showdirs(dnd, dndirs, 0);
+ /* free the array of dnode pointers to the dirs */
+ free(dnd);
+ }
}
+ /* free the dnodes and the fullname mem */
+ dfree(subdnp, nfiles);
}
- dfree(subdnp); /* free the dnodes and the fullname mem */
-#endif
}
}
}
-/*----------------------------------------------------------------------*/
+
static struct dnode **list_dir(const char *path)
{
struct dnode *dn, *cur, **dnp;
int i, nfiles;
if (path == NULL)
- return (NULL);
+ return NULL;
dn = NULL;
nfiles = 0;
- dir = opendir(path);
+ dir = warn_opendir(path);
if (dir == NULL) {
- perror_msg("%s", path);
status = EXIT_FAILURE;
- return (NULL); /* could not open the dir */
+ return NULL; /* could not open the dir */
}
while ((entry = readdir(dir)) != NULL) {
char *fullname;
/* 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))
- && !(disp_opts & DISP_DOT))
- continue;
- if (!(disp_opts & DISP_HIDDEN))
- continue;
+ if ((!entry->d_name[1] || (entry->d_name[1] == '.' && !entry->d_name[2]))
+ && !(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)
+ cur = my_stat(fullname, bb_basename(fullname), 0);
+ if (!cur) {
+ free(fullname);
continue;
+ }
+ cur->allocated = 1;
cur->next = dn;
dn = cur;
nfiles++;
closedir(dir);
/* now that we know how many files there are
- ** allocate memory for an array to hold dnode pointers
+ * allocate memory for an array to hold dnode pointers
*/
if (dn == NULL)
- return (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);
+ return dnp;
}
-/*----------------------------------------------------------------------*/
+
+#if ENABLE_FEATURE_LS_TIMESTAMPS
+/* Do time() just once. Saves one syscall per file for "ls -l" */
+/* Initialized in main() */
+static time_t current_time_t;
+#endif
+
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
+#if ENABLE_FEATURE_LS_TIMESTAMPS
char *filetime;
time_t ttime, age;
#endif
-#if defined(CONFIG_FEATURE_LS_FILETYPES) || defined (CONFIG_FEATURE_LS_COLOR)
+#if ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
struct stat info;
char append;
#endif
if (dn->fullname == NULL)
- return (0);
+ return 0;
-#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
+#if ENABLE_FEATURE_LS_TIMESTAMPS
ttime = dn->dstat.st_mtime; /* the default time */
- if (time_fmt & TIME_ACCESS)
+ if (all_fmt & TIME_ACCESS)
ttime = dn->dstat.st_atime;
- if (time_fmt & TIME_CHANGE)
+ if (all_fmt & TIME_CHANGE)
ttime = dn->dstat.st_ctime;
filetime = ctime(&ttime);
#endif
-#ifdef CONFIG_FEATURE_LS_FILETYPES
+#if ENABLE_FEATURE_LS_FILETYPES
append = append_char(dn->dstat.st_mode);
#endif
for (i = 0; i <= 31; i++) {
- switch (list_fmt & (1 << i)) {
+ switch (all_fmt & (1 << i)) {
case LIST_INO:
- column += printf("%7ld ", (long int) dn->dstat.st_ino);
+ column += printf("%7ld ", (long) 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
+ column += printf("%4"OFF_FMT"d ", (off_t) dn->dstat.st_blocks >> 1);
break;
case LIST_MODEBITS:
- column += printf("%-10s ", (char *) mode_string(dn->dstat.st_mode));
+ 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);
- printf("%-8.8s ", scratch);
- my_getgrgid(scratch, dn->dstat.st_gid);
- printf("%-8.8s", scratch);
+#if ENABLE_FEATURE_LS_USERNAME
+ printf("%-8.8s %-8.8s",
+ get_cached_username(dn->dstat.st_uid),
+ get_cached_groupname(dn->dstat.st_gid));
column += 17;
break;
#endif
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));
+ column += printf("%4d, %3d ", (int) major(dn->dstat.st_rdev),
+ (int) minor(dn->dstat.st_rdev));
} else {
-#ifdef CONFIG_FEATURE_HUMAN_READABLE
- if (ls_disp_hr == TRUE) {
+ 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
+ make_human_readable_str(dn->dstat.st_size, 1, 0));
+ } else {
+ column += printf("%9"OFF_FMT"d ", (off_t) dn->dstat.st_size);
}
}
break;
-#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
+#if ENABLE_FEATURE_LS_TIMESTAMPS
case LIST_FULLTIME:
+ printf("%24.24s ", filetime);
+ column += 25;
+ break;
case LIST_DATE_TIME:
- if (list_fmt & LIST_FULLTIME) {
- printf("%24.24s ", filetime);
- column += 25;
- break;
+ if ((all_fmt & LIST_FULLTIME) == 0) {
+ /* current_time_t ~== time(NULL) */
+ age = current_time_t - 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;
}
- 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);
+ break;
+#endif
+#if ENABLE_SELINUX
+ case LIST_CONTEXT:
+ {
+ char context[80];
+ int len = 0;
+
+ if (dn->sid) {
+ /* I assume sid initilized with NULL */
+ len = strlen(dn->sid) + 1;
+ safe_strncpy(context, dn->sid, len);
+ freecon(dn->sid);
+ } else {
+ safe_strncpy(context, "unknown", 8);
+ }
+ printf("%-32s ", context);
+ column += MAX(33, len);
}
- column += 13;
break;
#endif
case LIST_FILENAME:
-#ifdef CONFIG_FEATURE_LS_COLOR
errno = 0;
+#if ENABLE_FEATURE_LS_COLOR
if (show_color && !lstat(dn->fullname, &info)) {
printf("\033[%d;%dm", bgcolor(info.st_mode),
- fgcolor(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 (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));
- }
+ char *lpath = xmalloc_readlink_or_warn(dn->fullname);
+ if (!lpath) break;
+ printf(" -> ");
+#if ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
+ if (!stat(dn->fullname, &info)) {
+ append = append_char(info.st_mode);
+ }
#endif
- column += printf("%s", lpath) + 4;
-#ifdef CONFIG_FEATURE_LS_COLOR
- if (show_color) {
- printf("\033[0m");
- }
+#if ENABLE_FEATURE_LS_COLOR
+ if (show_color) {
+ errno = 0;
+ printf("\033[%d;%dm", bgcolor(info.st_mode),
+ fgcolor(info.st_mode));
+ }
#endif
- free(lpath);
+ column += printf("%s", lpath) + 4;
+ if (show_color) {
+ printf("\033[0m");
}
+ free(lpath);
}
break;
-#ifdef CONFIG_FEATURE_LS_FILETYPES
+#if ENABLE_FEATURE_LS_FILETYPES
case LIST_FILETYPE:
- if (append != '\0') {
- printf("%1c", append);
+ if (append) {
+ putchar(append);
column++;
}
break;
return column;
}
-/*----------------------------------------------------------------------*/
-extern int ls_main(int argc, char **argv)
+/* "[-]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 */
+static const char ls_options[] ALIGN1 =
+ "Cadil1gnsxAk"
+ USE_FEATURE_LS_TIMESTAMPS("cetu")
+ USE_FEATURE_LS_SORTFILES("SXrv")
+ USE_FEATURE_LS_FILETYPES("Fp")
+ USE_FEATURE_LS_FOLLOWLINKS("L")
+ USE_FEATURE_LS_RECURSIVE("R")
+ USE_FEATURE_HUMAN_READABLE("h")
+ USE_SELINUX("K")
+ USE_FEATURE_AUTOWIDTH("T:w:")
+ USE_SELINUX("Z");
+
+enum {
+ LIST_MASK_TRIGGER = 0,
+ STYLE_MASK_TRIGGER = STYLE_MASK,
+ DISP_MASK_TRIGGER = DISP_ROWS,
+ SORT_MASK_TRIGGER = SORT_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 */
+ ENABLE_SELINUX * LIST_CONTEXT, /* k (ignored if !SELINUX) */
+#if ENABLE_FEATURE_LS_TIMESTAMPS
+ TIME_CHANGE | (ENABLE_FEATURE_LS_SORTFILES * SORT_CTIME), /* c */
+ LIST_FULLTIME, /* e */
+ ENABLE_FEATURE_LS_SORTFILES * SORT_MTIME, /* t */
+ TIME_ACCESS | (ENABLE_FEATURE_LS_SORTFILES * SORT_ATIME), /* u */
+#endif
+#if ENABLE_FEATURE_LS_SORTFILES
+ SORT_SIZE, /* S */
+ SORT_EXT, /* X */
+ SORT_REVERSE, /* r */
+ SORT_VERSION, /* v */
+#endif
+#if ENABLE_FEATURE_LS_FILETYPES
+ LIST_FILETYPE | LIST_EXEC, /* F */
+ LIST_FILETYPE, /* p */
+#endif
+#if ENABLE_FEATURE_LS_FOLLOWLINKS
+ FOLLOW_LINKS, /* L */
+#endif
+#if ENABLE_FEATURE_LS_RECURSIVE
+ DISP_RECURSIVE, /* R */
+#endif
+#if ENABLE_FEATURE_HUMAN_READABLE
+ LS_DISP_HR, /* h */
+#endif
+#if ENABLE_SELINUX
+ LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME, /* K */
+#endif
+#if ENABLE_FEATURE_AUTOWIDTH
+ 0, 0, /* T, w - ignored */
+#endif
+#if ENABLE_SELINUX
+ LIST_MODEBITS|LIST_ID_NAME|LIST_CONTEXT, /* Z */
+#endif
+ (1U<<31)
+};
+
+
+/* THIS IS A "SAFE" APPLET, main() MAY BE CALLED INTERNALLY FROM SHELL */
+/* BE CAREFUL! */
+
+int ls_main(int argc, char **argv);
+int ls_main(int argc, char **argv)
{
- struct dnode **dnf, **dnd;
- int dnfiles, dndirs;
- struct dnode *dn, *cur, **dnp;
- int i, nfiles;
- int opt;
- int oi, ac;
+ struct dnode **dnd;
+ struct dnode **dnf;
+ struct dnode **dnp;
+ struct dnode *dn;
+ struct dnode *cur;
+ unsigned opt;
+ int nfiles = 0;
+ int dnfiles;
+ int dndirs;
+ int oi;
+ int ac;
+ int i;
char **av;
+ USE_FEATURE_AUTOWIDTH(char *tabstops_str = NULL;)
+ USE_FEATURE_AUTOWIDTH(char *terminal_width_str = NULL;)
+ USE_FEATURE_LS_COLOR(char *color_opt;)
-#ifdef CONFIG_FEATURE_AUTOWIDTH
- struct winsize win = { 0, 0, 0, 0 };
+#if ENABLE_FEATURE_LS_TIMESTAMPS
+ time(¤t_time_t);
#endif
- disp_opts = DISP_NORMAL;
- style_fmt = STYLE_AUTO;
- list_fmt = LIST_SHORT;
-#ifdef CONFIG_FEATURE_LS_SORTFILES
- sort_opts = SORT_NAME;
- sort_order = SORT_FORWARD;
-#endif
-#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
- time_fmt = TIME_MOD;
-#endif
-#ifdef CONFIG_FEATURE_AUTOWIDTH
- ioctl(fileno(stdout), TIOCGWINSZ, &win);
- if (win.ws_col > 0)
- terminal_width = win.ws_col - 1;
-#endif
- nfiles = 0;
+ all_fmt = LIST_SHORT |
+ (ENABLE_FEATURE_LS_SORTFILES * (SORT_NAME | SORT_FORWARD));
-#ifdef CONFIG_FEATURE_LS_COLOR
- if (isatty(fileno(stdout)))
- show_color = 1;
+#if ENABLE_FEATURE_AUTOWIDTH
+ /* Obtain the terminal width */
+ get_terminal_width_height(STDIN_FILENO, &terminal_width, NULL);
+ /* Go one less... */
+ terminal_width--;
#endif
/* process options */
- while ((opt = getopt(argc, argv, "1AaCdgilnsx"
-#ifdef CONFIG_FEATURE_AUTOWIDTH
- "T:w:"
-#endif
-#ifdef CONFIG_FEATURE_LS_FILETYPES
- "Fp"
-#endif
-#ifdef CONFIG_FEATURE_LS_RECURSIVE
- "R"
-#endif
-#ifdef CONFIG_FEATURE_LS_SORTFILES
- "rSvX"
-#endif
-#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
- "cetu"
-#endif
-#ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
- "L"
-#endif
-#ifdef CONFIG_FEATURE_HUMAN_READABLE
- "h"
-#endif
- "k")) > 0) {
- switch (opt) {
- case '1':
- style_fmt = STYLE_SINGLE;
- list_fmt = LIST_SHORT;
- break;
- case 'A':
- disp_opts |= DISP_HIDDEN;
- break;
- case 'a':
- disp_opts |= DISP_HIDDEN | DISP_DOT;
- break;
- case 'C':
- style_fmt = STYLE_COLUMNS;
- list_fmt = LIST_SHORT;
- 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;
-#ifdef CONFIG_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;
-#ifdef CONFIG_FEATURE_LS_FILETYPES
- case 'F':
- list_fmt |= LIST_FILETYPE | LIST_EXEC;
- break;
- case 'p':
- list_fmt |= LIST_FILETYPE;
- break;
-#endif
-#ifdef CONFIG_FEATURE_LS_RECURSIVE
- case 'R':
- disp_opts |= DISP_RECURSIVE;
- break;
-#endif
-#ifdef CONFIG_FEATURE_LS_SORTFILES
- case 'r':
- sort_order |= SORT_REVERSE;
- break;
- case 'S':
- sort_opts = SORT_SIZE;
- break;
- case 'v':
- sort_opts = SORT_VERSION;
- break;
- case 'X':
- sort_opts = SORT_EXT;
- break;
-#endif
-#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
- case 'e':
- list_fmt |= LIST_FULLTIME;
- break;
- case 'c':
- time_fmt = TIME_CHANGE;
-#ifdef CONFIG_FEATURE_LS_SORTFILES
- sort_opts = SORT_CTIME;
-#endif
- break;
- case 'u':
- time_fmt = TIME_ACCESS;
-#ifdef CONFIG_FEATURE_LS_SORTFILES
- sort_opts = SORT_ATIME;
-#endif
- break;
- case 't':
-#ifdef CONFIG_FEATURE_LS_SORTFILES
- sort_opts = SORT_MTIME;
-#endif
- break;
-#endif
-#ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
- case 'L':
- follow_links = TRUE;
- break;
-#endif
-#ifdef CONFIG_FEATURE_AUTOWIDTH
- case 'T':
- tabstops = atoi(optarg);
- break;
- case 'w':
- terminal_width = atoi(optarg);
- break;
-#endif
-#ifdef CONFIG_FEATURE_HUMAN_READABLE
- case 'h':
- ls_disp_hr = TRUE;
- break;
-#endif
- case 'k':
- break;
- default:
- goto print_usage_message;
+ USE_FEATURE_LS_COLOR(applet_long_options = ls_color_opt;)
+#if ENABLE_FEATURE_AUTOWIDTH
+ opt = getopt32(argv, ls_options, &tabstops_str, &terminal_width_str
+ USE_FEATURE_LS_COLOR(, &color_opt));
+ if (tabstops_str)
+ tabstops = xatou(tabstops_str);
+ if (terminal_width_str)
+ terminal_width = xatou(terminal_width_str);
+#else
+ opt = getopt32(argv, ls_options USE_FEATURE_LS_COLOR(, &color_opt));
+#endif
+ for (i = 0; opt_flags[i] != (1U<<31); i++) {
+ if (opt & (1 << i)) {
+ unsigned flags = opt_flags[i];
+
+ if (flags & LIST_MASK_TRIGGER)
+ all_fmt &= ~LIST_MASK;
+ if (flags & STYLE_MASK_TRIGGER)
+ all_fmt &= ~STYLE_MASK;
+ if (flags & SORT_MASK_TRIGGER)
+ all_fmt &= ~SORT_MASK;
+ if (flags & DISP_MASK_TRIGGER)
+ all_fmt &= ~DISP_MASK;
+ if (flags & TIME_MASK)
+ all_fmt &= ~TIME_MASK;
+ if (flags & LIST_CONTEXT)
+ all_fmt |= STYLE_SINGLE;
+ /* huh?? opt cannot be 'l' */
+ //if (LS_DISP_HR && opt == 'l')
+ // all_fmt &= ~LS_DISP_HR;
+ all_fmt |= flags;
}
}
- /* sort out which command line options take precedence */
-#ifdef CONFIG_FEATURE_LS_RECURSIVE
- if (disp_opts & DISP_NOLIST)
- disp_opts &= ~DISP_RECURSIVE; /* no recurse if listing only dir */
-#endif
-#if defined (CONFIG_FEATURE_LS_TIMESTAMPS) && defined (CONFIG_FEATURE_LS_SORTFILES)
- if (time_fmt & TIME_CHANGE)
- sort_opts = SORT_CTIME;
- if (time_fmt & TIME_ACCESS)
- sort_opts = SORT_ATIME;
-#endif
- if (style_fmt != STYLE_LONG) /* only for long list */
- list_fmt &= ~(LIST_ID_NUMERIC|LIST_FULLTIME|LIST_ID_NAME|LIST_ID_NUMERIC);
-#ifdef CONFIG_FEATURE_LS_USERNAME
- if (style_fmt == STYLE_LONG && (list_fmt & LIST_ID_NUMERIC))
- list_fmt &= ~LIST_ID_NAME; /* don't list names if numeric uid */
+#if ENABLE_FEATURE_LS_COLOR
+ /* find color bit value - last position for short getopt */
+ if (ENABLE_FEATURE_LS_COLOR_IS_DEFAULT && isatty(STDOUT_FILENO)) {
+ char *p = getenv("LS_COLORS");
+ /* LS_COLORS is unset, or (not empty && not "none") ? */
+ if (!p || (p[0] && strcmp(p, "none")))
+ show_color = 1;
+ }
+ if (opt & (1 << i)) { /* next flag after short options */
+ if (!color_opt || !strcmp("always", color_opt))
+ show_color = 1;
+ else if (color_opt && !strcmp("never", color_opt))
+ show_color = 0;
+ else if (color_opt && !strcmp("auto", color_opt) && isatty(STDOUT_FILENO))
+ show_color = 1;
+ }
#endif
+ /* sort out which command line options take precedence */
+ if (ENABLE_FEATURE_LS_RECURSIVE && (all_fmt & DISP_NOLIST))
+ all_fmt &= ~DISP_RECURSIVE; /* no recurse if listing only dir */
+ if (ENABLE_FEATURE_LS_TIMESTAMPS && ENABLE_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;
+ }
+ if ((all_fmt & STYLE_MASK) != STYLE_LONG) /* only for long list */
+ all_fmt &= ~(LIST_ID_NUMERIC|LIST_FULLTIME|LIST_ID_NAME|LIST_ID_NUMERIC);
+ if (ENABLE_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 */
+
/* choose a display format */
- if (style_fmt == STYLE_AUTO)
- style_fmt = isatty(fileno(stdout)) ? STYLE_COLUMNS : STYLE_SINGLE;
+ if (!(all_fmt & STYLE_MASK))
+ all_fmt |= (isatty(STDOUT_FILENO) ? STYLE_COLUMNS : STYLE_SINGLE);
/*
* when there are no cmd line args we have to supply a default "." arg.
*/
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] = xstrdup(".");
+ static const char *const dotdir[] = { "." };
+
+ av = (char **) dotdir;
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 */
- }
+ av = argv + optind;
}
/* now, everything is in the av array */
if (ac > 1)
- disp_opts |= DISP_DIRNAME; /* 2 or more items? label directories */
+ all_fmt |= DISP_DIRNAME; /* 2 or more items? label directories */
- /* stuff the command line file names into an dnode array */
+ /* stuff the command line file names into a dnode array */
dn = NULL;
for (oi = 0; oi < ac; oi++) {
- char *fullname = xstrdup(av[oi]);
-
- cur = my_stat(fullname, fullname);
+ /* ls w/o -l follows links on command line */
+ cur = my_stat(av[oi], av[oi], !(all_fmt & STYLE_LONG));
if (!cur)
continue;
+ cur->allocated = 0;
cur->next = dn;
dn = cur;
nfiles++;
}
/* now that we know how many files there are
- ** allocate memory for an array to hold dnode pointers
+ * allocate memory for an array to hold dnode pointers
*/
dnp = dnalloc(nfiles);
for (i = 0, cur = dn; i < nfiles; i++) {
cur = cur->next;
}
-
- if (disp_opts & DISP_NOLIST) {
-#ifdef CONFIG_FEATURE_LS_SORTFILES
- shellsort(dnp, nfiles);
-#endif
+ if (all_fmt & DISP_NOLIST) {
+ dnsort(dnp, nfiles);
if (nfiles > 0)
showfiles(dnp, nfiles);
} else {
dndirs = countdirs(dnp, nfiles);
dnfiles = nfiles - dndirs;
if (dnfiles > 0) {
-#ifdef CONFIG_FEATURE_LS_SORTFILES
- shellsort(dnf, dnfiles);
-#endif
+ dnsort(dnf, dnfiles);
showfiles(dnf, dnfiles);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(dnf);
}
if (dndirs > 0) {
-#ifdef CONFIG_FEATURE_LS_SORTFILES
- shellsort(dnd, dndirs);
-#endif
- showdirs(dnd, dndirs);
+ dnsort(dnd, dndirs);
+ showdirs(dnd, dndirs, dnfiles == 0);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(dnd);
}
}
- return (status);
-
- print_usage_message:
- show_usage();
+ if (ENABLE_FEATURE_CLEAN_UP)
+ dfree(dnp, nfiles);
+ return status;
}
projects / oweals / busybox.git / blobdiff