/*
* 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.
*/
/*
* 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
-
-/************************************************************************/
-
-#include "internal.h"
-//#if !defined(__GLIBC__) && (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
-//# include <linux/types.h>
-//#else
-# include <sys/types.h>
-//#endif
-#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 <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)])
-#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) */
-
-#define TIME_MOD 0
-#define TIME_CHANGE 1
-#define TIME_ACCESS 2
-
-#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 DISP_RECURSIVE 256 /* Do a recursive listing */
-
-#ifndef MAJOR
-#define MAJOR(dev) (((dev)>>8)&0xff)
-#define MINOR(dev) ((dev)&0xff)
-#endif
-
-static unsigned char display_fmt = FMT_AUTO;
-static unsigned short opts = 0;
-static unsigned short column = 0;
-
-#ifdef BB_FEATURE_AUTOWIDTH
-static unsigned short terminal_width = 0;
-static unsigned short column_width = 0;
-static unsigned short toplevel_column_width = 0;
+#include "libbb.h"
+
+#if ENABLE_FEATURE_ASSUME_UNICODE
+#include <wchar.h>
+#endif
+
+/* This is a NOEXEC applet. Be very careful! */
+
+
+enum {
+
+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 */
+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 */
+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,
+
+/* which of the three times will be used */
+TIME_CHANGE = (1 << 23) * ENABLE_FEATURE_LS_TIMESTAMPS,
+TIME_ACCESS = (1 << 24) * ENABLE_FEATURE_LS_TIMESTAMPS,
+TIME_MASK = (3 << 23) * ENABLE_FEATURE_LS_TIMESTAMPS,
+
+FOLLOW_LINKS = (1 << 25) * ENABLE_FEATURE_LS_FOLLOWLINKS,
+
+LS_DISP_HR = (1 << 26) * ENABLE_FEATURE_HUMAN_READABLE,
+
+LIST_SHORT = LIST_FILENAME,
+LIST_LONG = LIST_MODEBITS | LIST_NLINKS | LIST_ID_NAME | LIST_SIZE | \
+ LIST_DATE_TIME | LIST_FILENAME | LIST_SYMLINK,
+
+SPLIT_DIR = 1,
+SPLIT_FILE = 0,
+SPLIT_SUBDIR = 2,
+
+};
+
+#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)])
+#define ATTR(mode) ("\00\00\01\00\01\00\01\00"\
+ "\00\00\01\00\01\00\00\01" [TYPEINDEX(mode)])
+
+/*
+ * a directory entry and its stat info are stored here
+ */
+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 */
+};
+
+static struct dnode **list_dir(const char *);
+static struct dnode **dnalloc(int);
+static int list_single(const struct dnode *);
+
+
+struct globals {
+#if ENABLE_FEATURE_LS_COLOR
+ smallint show_color;
+#endif
+ smallint exit_code;
+ unsigned all_fmt;
+#if ENABLE_FEATURE_AUTOWIDTH
+ unsigned tabstops; // = COLUMN_GAP;
+ unsigned terminal_width; // = TERMINAL_WIDTH;
+#endif
+#if ENABLE_FEATURE_LS_TIMESTAMPS
+ /* Do time() just once. Saves one syscall per file for "ls -l" */
+ time_t current_time_t;
+#endif
+};
+#define G (*(struct globals*)&bb_common_bufsiz1)
+#if ENABLE_FEATURE_LS_COLOR
+#define show_color (G.show_color )
#else
-#define terminal_width TERMINAL_WIDTH
-#define column_width COLUMN_WIDTH
+enum { show_color = 0 };
#endif
-
-#ifdef BB_FEATURE_LS_TIMESTAMPS
-static unsigned char time_fmt = TIME_MOD;
+#define exit_code (G.exit_code )
+#define all_fmt (G.all_fmt )
+#if ENABLE_FEATURE_AUTOWIDTH
+#define tabstops (G.tabstops )
+#define terminal_width (G.terminal_width)
+#else
+enum {
+ tabstops = COLUMN_GAP,
+ terminal_width = TERMINAL_WIDTH,
+};
+#endif
+#define current_time_t (G.current_time_t)
+/* memset: we have to zero it out because of NOEXEC */
+#define INIT_G() do { \
+ memset(&G, 0, sizeof(G)); \
+ USE_FEATURE_AUTOWIDTH(tabstops = COLUMN_GAP;) \
+ USE_FEATURE_AUTOWIDTH(terminal_width = TERMINAL_WIDTH;) \
+ USE_FEATURE_LS_TIMESTAMPS(time(¤t_time_t);) \
+} while (0)
+
+
+#if ENABLE_FEATURE_ASSUME_UNICODE
+/* libbb candidate */
+static size_t mbstrlen(const char *string)
+{
+ size_t width = mbsrtowcs(NULL /*dest*/, &string,
+ MAXINT(size_t) /*len*/, NULL /*state*/);
+ if (width == (size_t)-1)
+ return strlen(string);
+ return width;
+}
+#else
+#define mbstrlen(string) strlen(string)
#endif
-#define wr(data,len) fwrite(data, 1, len, stdout)
-static void writenum(long val, short minwidth)
+static struct dnode *my_stat(const char *fullname, const char *name, int force_follow)
{
- 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;
+ USE_SELINUX(security_context_t sid = NULL;)
+
+ if ((all_fmt & FOLLOW_LINKS) || force_follow) {
+#if ENABLE_SELINUX
+ if (is_selinux_enabled()) {
+ getfilecon(fullname, &sid);
+ }
+#endif
+ if (stat(fullname, &dstat)) {
+ bb_simple_perror_msg(fullname);
+ exit_code = EXIT_FAILURE;
+ return 0;
+ }
+ } else {
+#if ENABLE_SELINUX
+ if (is_selinux_enabled()) {
+ lgetfilecon(fullname, &sid);
+ }
+#endif
+ if (lstat(fullname, &dstat)) {
+ bb_simple_perror_msg(fullname);
+ exit_code = EXIT_FAILURE;
+ return 0;
+ }
+ }
+
+ cur = xmalloc(sizeof(struct dnode));
+ cur->fullname = fullname;
+ cur->name = name;
+ cur->dstat = dstat;
+ USE_SELINUX(cur->sid = sid;)
+ return cur;
}
-static void newline(void)
+#if ENABLE_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 (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 (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 ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
static char append_char(mode_t mode)
{
- if (!(opts & DISP_FTYPE))
+ if (!(all_fmt & LIST_FILETYPE))
+ return '\0';
+ if (S_ISDIR(mode))
+ return '/';
+ if (!(all_fmt & LIST_EXEC))
return '\0';
- if ((opts & DISP_EXEC) && S_ISREG(mode)
- && (mode & (S_IXUSR | S_IXGRP | S_IXOTH))) return '*';
+ if (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)
- **
- **/
-
-static void list_single(const char *name, struct stat *info,
- const char *fullname)
+#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)
{
- char scratch[BUFSIZ + 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
-#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);
- }
- wr(" ", 1);
- }
-#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);
- }
- }
-#endif
- }
-#ifdef BB_FEATURE_LS_FILETYPES
- else if (append)
- wr(&append, 1);
-#endif
- } 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);
+ int i, dirs;
+
+ if (!dn)
+ return 0;
+ dirs = 0;
+ for (i = 0; i < nfiles; i++) {
+ 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++;
}
- /* 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++;
-#endif
}
+ return dirs;
}
-/**
- **
- ** List the given file or directory, expanding a directory
- ** to show its contents if required
- **
- **/
+static int countfiles(struct dnode **dnp)
+{
+ int nfiles;
+ struct dnode *cur;
-static int list_item(const char *name)
+ if (dnp == NULL)
+ return 0;
+ nfiles = 0;
+ for (cur = dnp[0]; cur->next; cur = cur->next)
+ nfiles++;
+ nfiles++;
+ return nfiles;
+}
+
+/* get memory to hold an array of pointers */
+static struct dnode **dnalloc(int num)
{
- struct stat info;
- DIR *dir;
- struct dirent *entry;
- char fullname[BUFSIZ + 1], *fnend;
+ if (num < 1)
+ return NULL;
- if (lstat(name, &info))
- goto listerr;
+ return xzalloc(num * sizeof(struct dnode *));
+}
+
+#if ENABLE_FEATURE_LS_RECURSIVE
+static void dfree(struct dnode **dnp, int nfiles)
+{
+ int i;
+
+ if (dnp == NULL)
+ return;
- if (!S_ISDIR(info.st_mode) || (opts & DIR_NOLIST)) {
-#ifdef BB_FEATURE_AUTOWIDTH
- column_width = toplevel_column_width;
+ 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 */
+ }
+ free(dnp); /* free the array holding the dnode pointers */
+}
+#else
+#define dfree(...) ((void)0)
#endif
- list_single(name, &info, name);
- return 0;
+
+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 */
}
- /* Otherwise, it's a directory we want to list the contents of */
+ /* allocate a file array and a dir array */
+ dnp = dnalloc(dncnt);
- if (opts & DISP_DIRNAME) { /* identify the directory */
- if (column)
- wr("\n\n", 2), column = 0;
- wr(name, strlen(name));
- wr(":\n", 2);
+ /* copy the entrys into the file or dir array */
+ for (d = i = 0; i < nfiles; i++) {
+ 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 if (!(which & (SPLIT_DIR|SPLIT_SUBDIR))) {
+ dnp[d++] = dn[i];
+ }
}
+ return dnp;
+}
- 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);
+#if ENABLE_FEATURE_LS_SORTFILES
+static int sortcmp(const void *a, const void *b)
+{
+ 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) (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 (column_width < w)
- column_width = w;
+ if (dif == 0) {
+ /* 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);
}
-#ifdef HAS_REWINDDIR
- rewinddir(dir);
+
+ if (all_fmt & SORT_REVERSE) {
+ dif = -dif;
+ }
+ return dif;
+}
+
+static void dnsort(struct dnode **dn, int size)
+{
+ qsort(dn, size, sizeof(*dn), sortcmp);
+}
#else
- closedir(dir);
- dir = opendir(name);
- if (!dir)
- goto listerr;
-#endif
+#define dnsort(dn, size) ((void)0)
#endif
- /* List the contents */
- strcpy(fullname, name); /* *** ignore '.' by itself */
- fnend = fullname + strlen(fullname);
- if (fnend[-1] != '/')
- *fnend++ = '/';
+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 */
- while ((entry = readdir(dir)) != NULL) {
- const char *en = entry->d_name;
+ if (dn == NULL || nfiles < 1)
+ return;
- if (en[0] == '.') {
- if (!en[1] || (en[1] == '.' && !en[2])) { /* . or .. */
- if (!(opts & DISP_DOT))
- continue;
- } else if (!(opts & DISP_HIDDEN))
- continue;
+ if (all_fmt & STYLE_LONG) {
+ ncols = 1;
+ } else {
+ /* find the longest file name, use that as the column width */
+ for (i = 0; i < nfiles; i++) {
+ int len = mbstrlen(dn[i]->name);
+ if (column_width < len)
+ column_width = len;
}
- /* 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);
+ 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);
}
- closedir(dir);
- if (opts & DISP_DIRNAME) { /* separate the directory */
- if (column) {
- wr("\n", 1);
+ 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;
+ printf("%*s", nexttab, "");
+ column += nexttab;
+ }
+ nexttab = column + column_width;
+ column += list_single(dn[i]);
+ }
}
- wr("\n", 1);
+ putchar('\n');
column = 0;
}
+}
+
+
+static void showdirs(struct dnode **dn, int ndirs, int first)
+{
+ int i, nfiles;
+ struct dnode **subdnp;
+ int dndirs;
+ struct dnode **dnd;
+
+ if (dn == NULL || ndirs < 1)
+ return;
+
+ for (i = 0; i < ndirs; i++) {
+ 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 */
+ dnsort(subdnp, nfiles);
+ showfiles(subdnp, nfiles);
+ 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);
+ }
+ }
+ }
+}
+
+
+static struct dnode **list_dir(const char *path)
+{
+ struct dnode *dn, *cur, **dnp;
+ struct dirent *entry;
+ DIR *dir;
+ int i, nfiles;
+
+ if (path == NULL)
+ return NULL;
- return 0;
+ dn = NULL;
+ nfiles = 0;
+ dir = warn_opendir(path);
+ if (dir == NULL) {
+ exit_code = EXIT_FAILURE;
+ return NULL; /* could not open the dir */
+ }
+ while ((entry = readdir(dir)) != NULL) {
+ char *fullname;
- direrr:
+ /* 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] || (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, bb_basename(fullname), 0);
+ if (!cur) {
+ free(fullname);
+ continue;
+ }
+ cur->allocated = 1;
+ cur->next = dn;
+ dn = cur;
+ nfiles++;
+ }
closedir(dir);
- listerr:
- newline();
- perror(name);
- return 1;
+
+ /* 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 const char ls_usage[] = "ls [-1a"
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- "c"
-#endif
- "d"
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- "e"
-#endif
- "ln"
-#ifdef BB_FEATURE_LS_FILETYPES
- "p"
-#endif
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- "u"
-#endif
- "xAC"
-#ifdef BB_FEATURE_LS_FILETYPES
- "F"
-#endif
-#ifdef BB_FEATURE_LS_RECURSIVE
- "R"
-#endif
- "] [filenames...]\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
- "\nList directory contents\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"
+
+static int list_single(const struct dnode *dn)
+{
+ int i, column = 0;
+
+#if ENABLE_FEATURE_LS_TIMESTAMPS
+ char *filetime;
+ time_t ttime, age;
#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"
+#if ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
+ struct stat info;
+ char append;
#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"
+
+ if (dn->fullname == NULL)
+ return 0;
+
+#if ENABLE_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
+#if ENABLE_FEATURE_LS_FILETYPES
+ append = append_char(dn->dstat.st_mode);
+#endif
+
+ for (i = 0; i <= 31; i++) {
+ switch (all_fmt & (1 << i)) {
+ case LIST_INO:
+ column += printf("%7ld ", (long) dn->dstat.st_ino);
+ break;
+ case LIST_BLOCKS:
+ column += printf("%4"OFF_FMT"d ", (off_t) dn->dstat.st_blocks >> 1);
+ 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:
+#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_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 {
+ if (all_fmt & LS_DISP_HR) {
+ column += printf("%9s ",
+ make_human_readable_str(dn->dstat.st_size, 1, 0));
+ } else {
+ column += printf("%9"OFF_FMT"d ", (off_t) dn->dstat.st_size);
+ }
+ }
+ break;
+#if ENABLE_FEATURE_LS_TIMESTAMPS
+ case LIST_FULLTIME:
+ printf("%24.24s ", filetime);
+ column += 25;
+ break;
+ case LIST_DATE_TIME:
+ 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;
+ }
+ 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);
+ }
+ break;
+#endif
+ case LIST_FILENAME:
+ 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));
+ }
#endif
-#ifdef BB_FEATURE_LS_TIMESTAMPS
- "\t-u\twith -l: show access time (the time of last\n"
- "\t\taccess of the file)\n"
+#if ENABLE_FEATURE_ASSUME_UNICODE
+ printf("%s", dn->name);
+ column += mbstrlen(dn->name);
+#else
+ column += printf("%s", dn->name);
#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"
+ if (show_color) {
+ printf("\033[0m");
+ }
+ break;
+ case LIST_SYMLINK:
+ if (S_ISLNK(dn->dstat.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
-#ifdef BB_FEATURE_LS_RECURSIVE
- "\t-R\tlist subdirectories recursively\n"
+#if ENABLE_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;
+ if (show_color) {
+ printf("\033[0m");
+ }
+ free(lpath);
+ }
+ break;
+#if ENABLE_FEATURE_LS_FILETYPES
+ case LIST_FILETYPE:
+ if (append) {
+ putchar(append);
+ column++;
+ }
+ break;
#endif
+ }
+ }
+
+ return column;
+}
+
+
+/* "[-]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)
+};
+
+
+/* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
+#if ENABLE_FEATURE_LS_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 */
;
+#endif
-#ifdef BB_FEATURE_LS_RECURSIVE
-static int dirAction(const char *fileName, struct stat *statbuf, void* junk)
+int ls_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int ls_main(int argc UNUSED_PARAM, char **argv)
{
+ struct dnode **dnd;
+ struct dnode **dnf;
+ struct dnode **dnp;
+ struct dnode *dn;
+ struct dnode *cur;
+ unsigned opt;
+ int nfiles;
+ int dnfiles;
+ int dndirs;
int i;
- fprintf(stdout, "\n%s:\n", fileName);
- i = list_item(fileName);
- newline();
- return (i);
-}
-#endif
+ /* need to initialize since --color has _an optional_ argument */
+ USE_FEATURE_LS_COLOR(const char *color_opt = "always";)
-extern int ls_main(int argc, char **argv)
-{
- int argi = 1, i;
+ INIT_G();
+
+ all_fmt = LIST_SHORT |
+ (ENABLE_FEATURE_LS_SORTFILES * (SORT_NAME | SORT_FORWARD));
+
+#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 (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;
- }
- /* it's a long option name - we don't support them */
- goto print_usage_message;
+ USE_FEATURE_LS_COLOR(applet_long_options = ls_color_opt;)
+#if ENABLE_FEATURE_AUTOWIDTH
+ opt_complementary = "T+:w+"; /* -T N, -w N */
+ opt = getopt32(argv, ls_options, &tabstops, &terminal_width
+ USE_FEATURE_LS_COLOR(, &color_opt));
+#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;
}
+ }
- 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
-#ifdef BB_FEATURE_LS_RECURSIVE
- case 'R':
- opts |= DISP_RECURSIVE;
- break;
-#endif
- case 'g': /* ignore -- for ftp servers */
- break;
- default:
- goto print_usage_message;
- }
+#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") != 0))
+ show_color = 1;
+ }
+ if (opt & (1 << i)) { /* next flag after short options */
+ if (strcmp("always", color_opt) == 0)
+ show_color = 1;
+ else if (strcmp("never", color_opt) == 0)
+ show_color = 0;
+ else if (strcmp("auto", color_opt) == 0 && isatty(STDOUT_FILENO))
+ show_color = 1;
+ }
+#endif
- argi++;
+ /* 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 (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;
+ if (!(all_fmt & STYLE_MASK))
+ all_fmt |= (isatty(STDOUT_FILENO) ? STYLE_COLUMNS : STYLE_SINGLE);
+
+ argv += optind;
+ if (!argv[0])
+ *--argv = (char*)".";
+
+ if (argv[1])
+ all_fmt |= DISP_DIRNAME; /* 2 or more items? label directories */
+
+ /* stuff the command line file names into a dnode array */
+ dn = NULL;
+ nfiles = 0;
+ do {
+ /* ls w/o -l follows links on command line */
+ cur = my_stat(*argv, *argv, !(all_fmt & STYLE_LONG));
+ argv++;
+ if (!cur)
+ continue;
+ cur->allocated = 0;
+ cur->next = dn;
+ dn = cur;
+ nfiles++;
+ } while (*argv);
+
+ /* 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;
}
-#endif
- /* process files specified, or current directory if none */
-#ifdef BB_FEATURE_LS_RECURSIVE
- if (opts & DISP_RECURSIVE) {
- i = 0;
- if (argi == argc) {
- i = recursiveAction(".", TRUE, FALSE, FALSE, NULL, dirAction, NULL);
+ if (all_fmt & DISP_NOLIST) {
+ dnsort(dnp, nfiles);
+ 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) {
+ dnsort(dnf, dnfiles);
+ showfiles(dnf, dnfiles);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(dnf);
}
- while (argi < argc) {
- i |= recursiveAction(argv[argi++], TRUE, FALSE, FALSE, NULL, dirAction, NULL);
+ if (dndirs > 0) {
+ dnsort(dnd, dndirs);
+ showdirs(dnd, dndirs, dnfiles == 0);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(dnd);
}
- } else
-#endif
- {
- i = 0;
- if (argi == argc)
- i = list_item(".");
- while (argi < argc)
- i |= list_item(argv[argi++]);
- newline();
}
- exit(i);
-
- print_usage_message:
- usage(ls_usage);
- exit(FALSE);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ dfree(dnp, nfiles);
+ return exit_code;
}
projects / oweals / busybox.git / blobdiff