* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-/*
+/* [date unknown. Perhaps before year 2000]
* 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
*
* KNOWN BUGS:
* 1. ls -l of a directory doesn't give "total <blocks>" header
- * 2. ls of a symlink to a directory doesn't list directory contents
- * 3. hidden files can make column width too large
+ * 2. hidden files can make column width too large
*
* NON-OPTIMAL BEHAVIOUR:
* 1. autowidth reads directories twice
* appended, there's no need to stat each one
* PORTABILITY:
* 1. requires lstat (BSD) - how do you do it without?
+ *
+ * [2009-03]
+ * ls sorts listing now, and supports almost all options.
*/
-
-#include <getopt.h>
#include "libbb.h"
+#include "unicode.h"
+
/* This is a NOEXEC applet. Be very careful! */
+#if ENABLE_FTPD
+/* ftpd uses ls, and without timestamps Mozilla won't understand
+ * ftpd's LIST output.
+ */
+# undef CONFIG_FEATURE_LS_TIMESTAMPS
+# undef ENABLE_FEATURE_LS_TIMESTAMPS
+# undef IF_FEATURE_LS_TIMESTAMPS
+# undef IF_NOT_FEATURE_LS_TIMESTAMPS
+# define CONFIG_FEATURE_LS_TIMESTAMPS 1
+# define ENABLE_FEATURE_LS_TIMESTAMPS 1
+# define IF_FEATURE_LS_TIMESTAMPS(...) __VA_ARGS__
+# define IF_NOT_FEATURE_LS_TIMESTAMPS(...)
+#endif
+
+
enum {
TERMINAL_WIDTH = 80, /* use 79 if terminal has linefold bug */
LIST_ID_NUMERIC = 1 << 5,
LIST_CONTEXT = 1 << 6,
LIST_SIZE = 1 << 7,
-LIST_DEV = 1 << 8,
+//LIST_DEV = 1 << 8, - unused, synonym to LIST_SIZE
LIST_DATE_TIME = 1 << 9,
LIST_FULLTIME = 1 << 10,
LIST_FILENAME = 1 << 11,
};
-#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)])
-
-/* 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 */
+/* "[-]Cadil1", POSIX mandated options, busybox always supports */
+/* "[-]gnsx", POSIX non-mandated options, busybox always supports */
+/* "[-]Q" GNU option? 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 =
+ "Cadil1gnsxQAk" /* 13 opts, total 13 */
+ IF_FEATURE_LS_TIMESTAMPS("cetu") /* 4, 17 */
+ IF_FEATURE_LS_SORTFILES("SXrv") /* 4, 21 */
+ IF_FEATURE_LS_FILETYPES("Fp") /* 2, 23 */
+ IF_FEATURE_LS_FOLLOWLINKS("L") /* 1, 24 */
+ IF_FEATURE_LS_RECURSIVE("R") /* 1, 25 */
+ IF_FEATURE_HUMAN_READABLE("h") /* 1, 26 */
+ IF_SELINUX("KZ") /* 2, 28 */
+ IF_FEATURE_AUTOWIDTH("T:w:") /* 2, 30 */
;
-#else
-enum { show_color = 0 };
+enum {
+ //OPT_C = (1 << 0),
+ //OPT_a = (1 << 1),
+ //OPT_d = (1 << 2),
+ //OPT_i = (1 << 3),
+ //OPT_l = (1 << 4),
+ //OPT_1 = (1 << 5),
+ OPT_g = (1 << 6),
+ //OPT_n = (1 << 7),
+ //OPT_s = (1 << 8),
+ //OPT_x = (1 << 9),
+ OPT_Q = (1 << 10),
+ //OPT_A = (1 << 11),
+ //OPT_k = (1 << 12),
+ OPTBIT_color = 13
+ + 4 * ENABLE_FEATURE_LS_TIMESTAMPS
+ + 4 * ENABLE_FEATURE_LS_SORTFILES
+ + 2 * ENABLE_FEATURE_LS_FILETYPES
+ + 1 * ENABLE_FEATURE_LS_FOLLOWLINKS
+ + 1 * ENABLE_FEATURE_LS_RECURSIVE
+ + 1 * ENABLE_FEATURE_HUMAN_READABLE
+ + 2 * ENABLE_SELINUX
+ + 2 * ENABLE_FEATURE_AUTOWIDTH,
+ OPT_color = 1 << OPTBIT_color,
+};
+
+enum {
+ LIST_MASK_TRIGGER = 0,
+ STYLE_MASK_TRIGGER = STYLE_MASK,
+ DISP_MASK_TRIGGER = DISP_ROWS,
+ SORT_MASK_TRIGGER = SORT_MASK,
+};
+
+/* TODO: simple toggles may be stored as OPT_xxx bits instead */
+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 (don't show group) - handled via OPT_g */
+ LIST_ID_NUMERIC, /* n */
+ LIST_BLOCKS, /* s */
+ DISP_ROWS, /* x */
+ 0, /* Q (quote filename) - handled via OPT_Q */
+ 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_SELINUX
+ LIST_MODEBITS|LIST_ID_NAME|LIST_CONTEXT, /* Z */
+#endif
+ (1U<<31)
+ /* options after Z are not processed through opt_flags:
+ * T, w - ignored
+ */
+};
+
/*
* a directory entry and its stat info are stored here
const char *fullname; /* the dir entry name */
int allocated;
struct stat dstat; /* the file stat info */
- USE_SELINUX(security_context_t sid;)
+ IF_SELINUX(security_context_t sid;)
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 int list_single(const struct dnode *);
-static unsigned all_fmt;
+struct globals {
+#if ENABLE_FEATURE_LS_COLOR
+ smallint show_color;
+#endif
+ smallint exit_code;
+ unsigned all_fmt;
#if ENABLE_FEATURE_AUTOWIDTH
-static unsigned tabstops = COLUMN_GAP;
-static unsigned terminal_width = TERMINAL_WIDTH;
+ 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
+enum { show_color = 0 };
+#endif
+#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)
+#define INIT_G() do { \
+ /* we have to zero it out because of NOEXEC */ \
+ memset(&G, 0, sizeof(G)); \
+ IF_FEATURE_AUTOWIDTH(tabstops = COLUMN_GAP;) \
+ IF_FEATURE_AUTOWIDTH(terminal_width = TERMINAL_WIDTH;) \
+ IF_FEATURE_LS_TIMESTAMPS(time(¤t_time_t);) \
+} while (0)
-static int status = EXIT_SUCCESS;
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;)
+ IF_SELINUX(security_context_t sid = NULL;)
if ((all_fmt & FOLLOW_LINKS) || force_follow) {
#if ENABLE_SELINUX
#endif
if (stat(fullname, &dstat)) {
bb_simple_perror_msg(fullname);
- status = EXIT_FAILURE;
+ exit_code = EXIT_FAILURE;
return 0;
}
} else {
#endif
if (lstat(fullname, &dstat)) {
bb_simple_perror_msg(fullname);
- status = EXIT_FAILURE;
+ exit_code = EXIT_FAILURE;
return 0;
}
}
cur->fullname = fullname;
cur->name = name;
cur->dstat = dstat;
- USE_SELINUX(cur->sid = sid;)
+ IF_SELINUX(cur->sid = sid;)
return cur;
}
+
+/* FYI type values: 1:fifo 2:char 4:dir 6:blk 8:file 10:link 12:socket
+ * (various wacky OSes: 13:Sun door 14:BSD whiteout 5:XENIX named file
+ * 3/7:multiplexed char/block device)
+ * and we use 0 for unknown and 15 for executables (see below) */
+#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)])
+/* 036 black foreground 050 black background
+ 037 red foreground 051 red background
+ 040 green foreground 052 green background
+ 041 brown foreground 053 brown background
+ 042 blue foreground 054 blue background
+ 043 magenta (purple) foreground 055 magenta background
+ 044 cyan (light blue) foreground 056 cyan background
+ 045 gray foreground 057 white background
+*/
+#define COLOR(mode) ( \
+ /*un fi chr dir blk file link sock exe */ \
+ "\037\043\043\045\042\045\043\043\000\045\044\045\043\045\045\040" \
+ [TYPEINDEX(mode)])
+/* Select normal (0) [actually "reset all"] or bold (1)
+ * (other attributes are 2:dim 4:underline 5:blink 7:reverse,
+ * let's use 7 for "impossible" types, just for fun)
+ * Note: coreutils 6.9 uses inverted red for setuid binaries.
+ */
+#define ATTR(mode) ( \
+ /*un fi chr dir blk file link sock exe */ \
+ "\01\00\01\07\01\07\01\07\00\07\01\07\01\07\07\01" \
+ [TYPEINDEX(mode)])
+
#if ENABLE_FEATURE_LS_COLOR
+/* mode of zero is interpreted as "unknown" (stat failed) */
static char fgcolor(mode_t mode)
{
- /* 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 char bgcolor(mode_t mode)
+static char bold(mode_t mode)
{
if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
return ATTR(0xF000); /* File is executable ... */
}
#endif
+
#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)
} else {
/* find the longest file name, use that as the column width */
for (i = 0; i < nfiles; i++) {
- int len = strlen(dn[i]->name);
+ int len = bb_mbstrlen(dn[i]->name);
if (column_width < len)
column_width = len;
}
column_width += tabstops +
- USE_SELINUX( ((all_fmt & LIST_CONTEXT) ? 33 : 0) + )
+ IF_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);
nfiles = 0;
dir = warn_opendir(path);
if (dir == NULL) {
- status = EXIT_FAILURE;
+ exit_code = EXIT_FAILURE;
return NULL; /* could not open the dir */
}
while ((entry = readdir(dir)) != NULL) {
}
-#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;
+static int print_name(const char *name)
+{
+ if (option_mask32 & OPT_Q) {
+#if ENABLE_FEATURE_ASSUME_UNICODE
+ int len = 2 + bb_mbstrlen(name);
+#else
+ int len = 2;
#endif
+ putchar('"');
+ while (*name) {
+ if (*name == '"') {
+ putchar('\\');
+ len++;
+ }
+ putchar(*name++);
+ if (!ENABLE_FEATURE_ASSUME_UNICODE)
+ len++;
+ }
+ putchar('"');
+ return len;
+ }
+ /* No -Q: */
+#if ENABLE_FEATURE_ASSUME_UNICODE
+ fputs(name, stdout);
+ return bb_mbstrlen(name);
+#else
+ return printf("%s", name);
+#endif
+}
-static int list_single(struct dnode *dn)
-{
- int i, column = 0;
+static int list_single(const struct dnode *dn)
+{
+ int column = 0;
+ char *lpath = lpath; /* for compiler */
#if ENABLE_FEATURE_LS_TIMESTAMPS
char *filetime;
time_t ttime, age;
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:
+ /* Do readlink early, so that if it fails, error message
+ * does not appear *inside* of the "ls -l" line */
+ if (all_fmt & LIST_SYMLINK)
+ if (S_ISLNK(dn->dstat.st_mode))
+ lpath = xmalloc_readlink_or_warn(dn->fullname);
+
+ if (all_fmt & LIST_INO)
+ column += printf("%7lu ", (long) dn->dstat.st_ino);
+ if (all_fmt & LIST_BLOCKS)
+ column += printf("%4"OFF_FMT"u ", (off_t) dn->dstat.st_blocks >> 1);
+ if (all_fmt & LIST_MODEBITS)
+ column += printf("%-10s ", (char *) bb_mode_string(dn->dstat.st_mode));
+ if (all_fmt & LIST_NLINKS)
+ column += printf("%4lu ", (long) dn->dstat.st_nlink);
#if ENABLE_FEATURE_LS_USERNAME
- printf("%-8.8s %-8.8s",
+ if (all_fmt & LIST_ID_NAME) {
+ if (option_mask32 & OPT_g) {
+ column += printf("%-8.8s",
+ get_cached_username(dn->dstat.st_uid));
+ } else {
+ column += 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));
+ }
+ }
+#endif
+ if (all_fmt & LIST_ID_NUMERIC) {
+ if (option_mask32 & OPT_g)
+ column += printf("%-8u", (int) dn->dstat.st_uid);
+ else
+ column += printf("%-8u %-8u",
+ (int) dn->dstat.st_uid,
+ (int) dn->dstat.st_gid);
+ }
+ if (all_fmt & (LIST_SIZE /*|LIST_DEV*/ )) {
+ if (S_ISBLK(dn->dstat.st_mode) || S_ISCHR(dn->dstat.st_mode)) {
+ column += printf("%4u, %3u ",
+ (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 {
- 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);
- }
+ column += printf("%9"OFF_FMT"u ", (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;
+ if (all_fmt & LIST_FULLTIME)
+ column += printf("%24.24s ", filetime);
+ if (all_fmt & 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);
}
- break;
+ column += 13;
+ }
#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;
+ if (all_fmt & LIST_CONTEXT) {
+ column += printf("%-32s ", dn->sid ? dn->sid : "unknown");
+ freecon(dn->sid);
+ }
#endif
- case LIST_FILENAME:
- errno = 0;
+ if (all_fmt & LIST_FILENAME) {
#if ENABLE_FEATURE_LS_COLOR
- if (show_color && !lstat(dn->fullname, &info)) {
- printf("\033[%d;%dm", bgcolor(info.st_mode),
- fgcolor(info.st_mode));
- }
+ if (show_color) {
+ info.st_mode = 0; /* for fgcolor() */
+ lstat(dn->fullname, &info);
+ printf("\033[%u;%um", bold(info.st_mode),
+ fgcolor(info.st_mode));
+ }
#endif
- column += printf("%s", dn->name);
- 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(" -> ");
+ column += print_name(dn->name);
+ if (show_color) {
+ printf("\033[0m");
+ }
+ }
+ if (all_fmt & LIST_SYMLINK) {
+ if (S_ISLNK(dn->dstat.st_mode) && lpath) {
+ printf(" -> ");
#if ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
- if (!stat(dn->fullname, &info)) {
- append = append_char(info.st_mode);
- }
-#endif
#if ENABLE_FEATURE_LS_COLOR
- if (show_color) {
- errno = 0;
- printf("\033[%d;%dm", bgcolor(info.st_mode),
- fgcolor(info.st_mode));
- }
+ info.st_mode = 0; /* for fgcolor() */
#endif
- column += printf("%s", lpath) + 4;
- if (show_color) {
- printf("\033[0m");
- }
- free(lpath);
+ if (stat(dn->fullname, &info) == 0) {
+ append = append_char(info.st_mode);
}
- break;
-#if ENABLE_FEATURE_LS_FILETYPES
- case LIST_FILETYPE:
- if (append) {
- putchar(append);
- column++;
+#endif
+#if ENABLE_FEATURE_LS_COLOR
+ if (show_color) {
+ printf("\033[%u;%um", bold(info.st_mode),
+ fgcolor(info.st_mode));
}
- break;
#endif
+ column += print_name(lpath) + 4;
+ if (show_color) {
+ printf("\033[0m");
+ }
+ free(lpath);
}
}
-
- 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 */
+ if (all_fmt & LIST_FILETYPE) {
+ if (append) {
+ putchar(append);
+ column++;
+ }
+ }
#endif
- (1U<<31)
-};
+ return column;
+}
-/* THIS IS A "SAFE" APPLET, main() MAY BE CALLED INTERNALLY FROM SHELL */
-/* BE CAREFUL! */
-int ls_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int ls_main(int argc, char **argv)
+int ls_main(int argc UNUSED_PARAM, char **argv)
{
struct dnode **dnd;
struct dnode **dnf;
struct dnode *dn;
struct dnode *cur;
unsigned opt;
- int nfiles = 0;
+ int nfiles;
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;)
-
-#if ENABLE_FEATURE_LS_TIMESTAMPS
- time(¤t_time_t);
+#if ENABLE_FEATURE_LS_COLOR
+ /* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
+ /* coreutils 6.10:
+ * # ls --color=BOGUS
+ * ls: invalid argument 'BOGUS' for '--color'
+ * Valid arguments are:
+ * 'always', 'yes', 'force'
+ * 'never', 'no', 'none'
+ * 'auto', 'tty', 'if-tty'
+ * (and substrings: "--color=alwa" work too)
+ */
+ static const char ls_longopts[] ALIGN1 =
+ "color\0" Optional_argument "\xff"; /* no short equivalent */
+ static const char color_str[] ALIGN1 =
+ "always\0""yes\0""force\0"
+ "auto\0""tty\0""if-tty\0";
+ /* need to initialize since --color has _an optional_ argument */
+ const char *color_opt = color_str; /* "always" */
#endif
+ INIT_G();
+
+ check_unicode_in_env();
+
all_fmt = LIST_SHORT |
(ENABLE_FEATURE_LS_SORTFILES * (SORT_NAME | SORT_FORWARD));
#if ENABLE_FEATURE_AUTOWIDTH
- /* Obtain the terminal width */
+ /* obtain the terminal width */
get_terminal_width_height(STDIN_FILENO, &terminal_width, NULL);
- /* Go one less... */
+ /* go one less... */
terminal_width--;
#endif
/* process options */
- USE_FEATURE_LS_COLOR(applet_long_options = ls_color_opt;)
+ IF_FEATURE_LS_COLOR(applet_long_options = ls_longopts;)
#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);
+ opt_complementary = "T+:w+"; /* -T N, -w N */
+ opt = getopt32(argv, ls_options, &tabstops, &terminal_width
+ IF_FEATURE_LS_COLOR(, &color_opt));
#else
- opt = getopt32(argv, ls_options USE_FEATURE_LS_COLOR(, &color_opt));
+ opt = getopt32(argv, ls_options IF_FEATURE_LS_COLOR(, &color_opt));
#endif
for (i = 0; opt_flags[i] != (1U<<31); i++) {
if (opt & (1 << i)) {
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")))
+ if (!p || (p[0] && strcmp(p, "none") != 0))
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))
+ if (opt & OPT_color) {
+ if (color_opt[0] == 'n')
show_color = 0;
- else if (color_opt && !strcmp("auto", color_opt) && isatty(STDOUT_FILENO))
- show_color = 1;
+ else switch (index_in_substrings(color_str, color_opt)) {
+ case 3:
+ case 4:
+ case 5:
+ if (isatty(STDOUT_FILENO)) {
+ case 0:
+ case 1:
+ case 2:
+ show_color = 1;
+ }
+ }
}
#endif
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.
- * 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) {
- static const char *const dotdir[] = { "." };
+ argv += optind;
+ if (!argv[0])
+ *--argv = (char*)".";
- av = (char **) dotdir;
- ac = 1;
- } else {
- av = argv + optind;
- }
-
- /* now, everything is in the av array */
- if (ac > 1)
- all_fmt |= DISP_DIRNAME; /* 2 or more items? label directories */
+ 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;
- for (oi = 0; oi < ac; oi++) {
- /* ls w/o -l follows links on command line */
- cur = my_stat(av[oi], av[oi], !(all_fmt & STYLE_LONG));
+ nfiles = 0;
+ do {
+ /* NB: follow links on command line unless -l or -s */
+ cur = my_stat(*argv, *argv, !(all_fmt & (STYLE_LONG|LIST_BLOCKS)));
+ 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
}
if (ENABLE_FEATURE_CLEAN_UP)
dfree(dnp, nfiles);
- return status;
+ return exit_code;
}
projects / oweals / busybox.git / blobdiff