[821] | 1 | /* vi: set sw=4 ts=4: */
|
---|
| 2 | /*
|
---|
| 3 | * tiny-ls.c version 0.1.0: A minimalist 'ls'
|
---|
| 4 | * Copyright (C) 1996 Brian Candler <B.Candler@pobox.com>
|
---|
| 5 | *
|
---|
| 6 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
---|
| 7 | */
|
---|
| 8 |
|
---|
| 9 | /*
|
---|
| 10 | * To achieve a small memory footprint, this version of 'ls' doesn't do any
|
---|
| 11 | * file sorting, and only has the most essential command line switches
|
---|
| 12 | * (i.e., the ones I couldn't live without :-) All features which involve
|
---|
| 13 | * linking in substantial chunks of libc can be disabled.
|
---|
| 14 | *
|
---|
| 15 | * Although I don't really want to add new features to this program to
|
---|
| 16 | * keep it small, I *am* interested to receive bug fixes and ways to make
|
---|
| 17 | * it more portable.
|
---|
| 18 | *
|
---|
| 19 | * KNOWN BUGS:
|
---|
| 20 | * 1. ls -l of a directory doesn't give "total <blocks>" header
|
---|
| 21 | * 2. ls of a symlink to a directory doesn't list directory contents
|
---|
| 22 | * 3. hidden files can make column width too large
|
---|
| 23 | *
|
---|
| 24 | * NON-OPTIMAL BEHAVIOUR:
|
---|
| 25 | * 1. autowidth reads directories twice
|
---|
| 26 | * 2. if you do a short directory listing without filetype characters
|
---|
| 27 | * appended, there's no need to stat each one
|
---|
| 28 | * PORTABILITY:
|
---|
| 29 | * 1. requires lstat (BSD) - how do you do it without?
|
---|
| 30 | */
|
---|
| 31 |
|
---|
| 32 | enum {
|
---|
| 33 | TERMINAL_WIDTH = 80, /* use 79 if terminal has linefold bug */
|
---|
| 34 | COLUMN_GAP = 2, /* includes the file type char */
|
---|
| 35 | };
|
---|
| 36 |
|
---|
| 37 | /************************************************************************/
|
---|
| 38 |
|
---|
| 39 | #include "busybox.h"
|
---|
| 40 | #include <unistd.h>
|
---|
| 41 | #include <errno.h>
|
---|
| 42 | #include <string.h>
|
---|
| 43 | #include <fcntl.h>
|
---|
| 44 | #include <signal.h>
|
---|
| 45 | #include <getopt.h> /* struct option */
|
---|
| 46 | #include <sys/ioctl.h>
|
---|
| 47 | #include <sys/sysmacros.h> /* major() and minor() */
|
---|
| 48 | #include <time.h>
|
---|
| 49 |
|
---|
| 50 | /* what is the overall style of the listing */
|
---|
| 51 | #define STYLE_COLUMNS (1U<<21) /* fill columns */
|
---|
| 52 | #define STYLE_LONG (2U<<21) /* one record per line, extended info */
|
---|
| 53 | #define STYLE_SINGLE (3U<<21) /* one record per line */
|
---|
| 54 |
|
---|
| 55 | #define STYLE_MASK STYLE_SINGLE
|
---|
| 56 | #define STYLE_ONE_RECORD_FLAG STYLE_LONG
|
---|
| 57 |
|
---|
| 58 | /* 51306 lrwxrwxrwx 1 root root 2 May 11 01:43 /bin/view -> vi* */
|
---|
| 59 | /* what file information will be listed */
|
---|
| 60 | #define LIST_INO (1U<<0)
|
---|
| 61 | #define LIST_BLOCKS (1U<<1)
|
---|
| 62 | #define LIST_MODEBITS (1U<<2)
|
---|
| 63 | #define LIST_NLINKS (1U<<3)
|
---|
| 64 | #define LIST_ID_NAME (1U<<4)
|
---|
| 65 | #define LIST_ID_NUMERIC (1U<<5)
|
---|
| 66 | #define LIST_CONTEXT (1U<<6)
|
---|
| 67 | #define LIST_SIZE (1U<<7)
|
---|
| 68 | #define LIST_DEV (1U<<8)
|
---|
| 69 | #define LIST_DATE_TIME (1U<<9)
|
---|
| 70 | #define LIST_FULLTIME (1U<<10)
|
---|
| 71 | #define LIST_FILENAME (1U<<11)
|
---|
| 72 | #define LIST_SYMLINK (1U<<12)
|
---|
| 73 | #define LIST_FILETYPE (1U<<13)
|
---|
| 74 | #define LIST_EXEC (1U<<14)
|
---|
| 75 |
|
---|
| 76 | #define LIST_MASK ((LIST_EXEC << 1) - 1)
|
---|
| 77 |
|
---|
| 78 | /* what files will be displayed */
|
---|
| 79 | #define DISP_DIRNAME (1U<<15) /* 2 or more items? label directories */
|
---|
| 80 | #define DISP_HIDDEN (1U<<16) /* show filenames starting with . */
|
---|
| 81 | #define DISP_DOT (1U<<17) /* show . and .. */
|
---|
| 82 | #define DISP_NOLIST (1U<<18) /* show directory as itself, not contents */
|
---|
| 83 | #define DISP_RECURSIVE (1U<<19) /* show directory and everything below it */
|
---|
| 84 | #define DISP_ROWS (1U<<20) /* print across rows */
|
---|
| 85 |
|
---|
| 86 | #define DISP_MASK (((DISP_ROWS << 1) - 1) & ~(DISP_DIRNAME - 1))
|
---|
| 87 |
|
---|
| 88 | // CONFIG_FEATURE_LS_SORTFILES
|
---|
| 89 | /* how will the files be sorted */
|
---|
| 90 | #define SORT_ORDER_FORWARD 0 /* sort in reverse order */
|
---|
| 91 | #define SORT_ORDER_REVERSE (1U<<27) /* sort in reverse order */
|
---|
| 92 |
|
---|
| 93 | #define SORT_NAME 0 /* sort by file name */
|
---|
| 94 | #define SORT_SIZE (1U<<28) /* sort by file size */
|
---|
| 95 | #define SORT_ATIME (2U<<28) /* sort by last access time */
|
---|
| 96 | #define SORT_CTIME (3U<<28) /* sort by last change time */
|
---|
| 97 | #define SORT_MTIME (4U<<28) /* sort by last modification time */
|
---|
| 98 | #define SORT_VERSION (5U<<28) /* sort by version */
|
---|
| 99 | #define SORT_EXT (6U<<28) /* sort by file name extension */
|
---|
| 100 | #define SORT_DIR (7U<<28) /* sort by file or directory */
|
---|
| 101 |
|
---|
| 102 | #define SORT_MASK (7U<<28)
|
---|
| 103 |
|
---|
| 104 | /* which of the three times will be used */
|
---|
| 105 | #define TIME_CHANGE ((1U<<23) * ENABLE_FEATURE_LS_TIMESTAMPS)
|
---|
| 106 | #define TIME_ACCESS ((1U<<24) * ENABLE_FEATURE_LS_TIMESTAMPS)
|
---|
| 107 | #define TIME_MASK ((3U<<23) * ENABLE_FEATURE_LS_TIMESTAMPS)
|
---|
| 108 |
|
---|
| 109 | #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
|
---|
| 110 | #define FOLLOW_LINKS (1U<<25)
|
---|
| 111 | #endif
|
---|
| 112 | #ifdef CONFIG_FEATURE_HUMAN_READABLE
|
---|
| 113 | #define LS_DISP_HR (1U<<26)
|
---|
| 114 | #endif
|
---|
| 115 |
|
---|
| 116 | #define LIST_SHORT (LIST_FILENAME)
|
---|
| 117 | #define LIST_ISHORT (LIST_INO | LIST_FILENAME)
|
---|
| 118 | #define LIST_LONG (LIST_MODEBITS | LIST_NLINKS | LIST_ID_NAME | LIST_SIZE | \
|
---|
| 119 | LIST_DATE_TIME | LIST_FILENAME | LIST_SYMLINK)
|
---|
| 120 | #define LIST_ILONG (LIST_INO | LIST_LONG)
|
---|
| 121 |
|
---|
| 122 | #define SPLIT_DIR 1
|
---|
| 123 | #define SPLIT_FILE 0
|
---|
| 124 | #define SPLIT_SUBDIR 2
|
---|
| 125 |
|
---|
| 126 | #define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
|
---|
| 127 | #define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
|
---|
| 128 |
|
---|
| 129 | #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined(CONFIG_FEATURE_LS_COLOR)
|
---|
| 130 | # define APPCHAR(mode) ("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
|
---|
| 131 | #endif
|
---|
| 132 |
|
---|
| 133 | /* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
|
---|
| 134 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 135 |
|
---|
| 136 | static int show_color = 0;
|
---|
| 137 |
|
---|
| 138 | /* long option entry used only for --color, which has no short option
|
---|
| 139 | * equivalent. */
|
---|
| 140 | static const struct option ls_color_opt[] =
|
---|
| 141 | {
|
---|
| 142 | {"color", optional_argument, NULL, 1},
|
---|
| 143 | {NULL, 0, NULL, 0}
|
---|
| 144 | };
|
---|
| 145 |
|
---|
| 146 | #define COLOR(mode) ("\000\043\043\043\042\000\043\043"\
|
---|
| 147 | "\000\000\044\000\043\000\000\040" [TYPEINDEX(mode)])
|
---|
| 148 | #define ATTR(mode) ("\00\00\01\00\01\00\01\00"\
|
---|
| 149 | "\00\00\01\00\01\00\00\01" [TYPEINDEX(mode)])
|
---|
| 150 | #endif
|
---|
| 151 |
|
---|
| 152 | /*
|
---|
| 153 | * a directory entry and its stat info are stored here
|
---|
| 154 | */
|
---|
| 155 | struct dnode { /* the basic node */
|
---|
| 156 | char *name; /* the dir entry name */
|
---|
| 157 | char *fullname; /* the dir entry name */
|
---|
| 158 | int allocated;
|
---|
| 159 | struct stat dstat; /* the file stat info */
|
---|
| 160 | #ifdef CONFIG_SELINUX
|
---|
| 161 | security_context_t sid;
|
---|
| 162 | #endif
|
---|
| 163 | struct dnode *next; /* point at the next node */
|
---|
| 164 | };
|
---|
| 165 | typedef struct dnode dnode_t;
|
---|
| 166 |
|
---|
| 167 | static struct dnode **list_dir(const char *);
|
---|
| 168 | static struct dnode **dnalloc(int);
|
---|
| 169 | static int list_single(struct dnode *);
|
---|
| 170 |
|
---|
| 171 | static unsigned int all_fmt;
|
---|
| 172 |
|
---|
| 173 | #ifdef CONFIG_FEATURE_AUTOWIDTH
|
---|
| 174 | static int terminal_width = TERMINAL_WIDTH;
|
---|
| 175 | static unsigned short tabstops = COLUMN_GAP;
|
---|
| 176 | #else
|
---|
| 177 | #define tabstops COLUMN_GAP
|
---|
| 178 | #define terminal_width TERMINAL_WIDTH
|
---|
| 179 | #endif
|
---|
| 180 |
|
---|
| 181 | static int status = EXIT_SUCCESS;
|
---|
| 182 |
|
---|
| 183 | static struct dnode *my_stat(char *fullname, char *name)
|
---|
| 184 | {
|
---|
| 185 | struct stat dstat;
|
---|
| 186 | struct dnode *cur;
|
---|
| 187 | #ifdef CONFIG_SELINUX
|
---|
| 188 | security_context_t sid=NULL;
|
---|
| 189 | #endif
|
---|
| 190 |
|
---|
| 191 | #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
|
---|
| 192 | if (all_fmt & FOLLOW_LINKS) {
|
---|
| 193 | #ifdef CONFIG_SELINUX
|
---|
| 194 | if (is_selinux_enabled()) {
|
---|
| 195 | getfilecon(fullname,&sid);
|
---|
| 196 | }
|
---|
| 197 | #endif
|
---|
| 198 | if (stat(fullname, &dstat)) {
|
---|
| 199 | bb_perror_msg("%s", fullname);
|
---|
| 200 | status = EXIT_FAILURE;
|
---|
| 201 | return 0;
|
---|
| 202 | }
|
---|
| 203 | } else
|
---|
| 204 | #endif
|
---|
| 205 | {
|
---|
| 206 | #ifdef CONFIG_SELINUX
|
---|
| 207 | if (is_selinux_enabled()) {
|
---|
| 208 | lgetfilecon(fullname,&sid);
|
---|
| 209 | }
|
---|
| 210 | #endif
|
---|
| 211 | if (lstat(fullname, &dstat)) {
|
---|
| 212 | bb_perror_msg("%s", fullname);
|
---|
| 213 | status = EXIT_FAILURE;
|
---|
| 214 | return 0;
|
---|
| 215 | }
|
---|
| 216 | }
|
---|
| 217 |
|
---|
| 218 | cur = (struct dnode *) xmalloc(sizeof(struct dnode));
|
---|
| 219 | cur->fullname = fullname;
|
---|
| 220 | cur->name = name;
|
---|
| 221 | cur->dstat = dstat;
|
---|
| 222 | #ifdef CONFIG_SELINUX
|
---|
| 223 | cur->sid = sid;
|
---|
| 224 | #endif
|
---|
| 225 | return cur;
|
---|
| 226 | }
|
---|
| 227 |
|
---|
| 228 | /*----------------------------------------------------------------------*/
|
---|
| 229 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 230 | static char fgcolor(mode_t mode)
|
---|
| 231 | {
|
---|
| 232 | /* Check wheter the file is existing (if so, color it red!) */
|
---|
| 233 | if (errno == ENOENT) {
|
---|
| 234 | return '\037';
|
---|
| 235 | }
|
---|
| 236 | if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
|
---|
| 237 | return COLOR(0xF000); /* File is executable ... */
|
---|
| 238 | return COLOR(mode);
|
---|
| 239 | }
|
---|
| 240 |
|
---|
| 241 | /*----------------------------------------------------------------------*/
|
---|
| 242 | static char bgcolor(mode_t mode)
|
---|
| 243 | {
|
---|
| 244 | if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
|
---|
| 245 | return ATTR(0xF000); /* File is executable ... */
|
---|
| 246 | return ATTR(mode);
|
---|
| 247 | }
|
---|
| 248 | #endif
|
---|
| 249 |
|
---|
| 250 | /*----------------------------------------------------------------------*/
|
---|
| 251 | #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined(CONFIG_FEATURE_LS_COLOR)
|
---|
| 252 | static char append_char(mode_t mode)
|
---|
| 253 | {
|
---|
| 254 | if (!(all_fmt & LIST_FILETYPE))
|
---|
| 255 | return '\0';
|
---|
| 256 | if (S_ISDIR(mode))
|
---|
| 257 | return '/';
|
---|
| 258 | if (!(all_fmt & LIST_EXEC))
|
---|
| 259 | return '\0';
|
---|
| 260 | if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
|
---|
| 261 | return '*';
|
---|
| 262 | return APPCHAR(mode);
|
---|
| 263 | }
|
---|
| 264 | #endif
|
---|
| 265 |
|
---|
| 266 | /*----------------------------------------------------------------------*/
|
---|
| 267 |
|
---|
| 268 | #define countdirs(A,B) count_dirs((A), (B), 1)
|
---|
| 269 | #define countsubdirs(A,B) count_dirs((A), (B), 0)
|
---|
| 270 |
|
---|
| 271 | static int count_dirs(struct dnode **dn, int nfiles, int notsubdirs)
|
---|
| 272 | {
|
---|
| 273 | int i, dirs;
|
---|
| 274 |
|
---|
| 275 | if (dn == NULL || nfiles < 1)
|
---|
| 276 | return (0);
|
---|
| 277 | dirs = 0;
|
---|
| 278 | for (i = 0; i < nfiles; i++) {
|
---|
| 279 | if (S_ISDIR(dn[i]->dstat.st_mode)
|
---|
| 280 | && (notsubdirs ||
|
---|
| 281 | ((dn[i]->name[0] != '.') || (dn[i]->name[1]
|
---|
| 282 | && ((dn[i]->name[1] != '.')
|
---|
| 283 | || dn[i]->name[2])))))
|
---|
| 284 | dirs++;
|
---|
| 285 | }
|
---|
| 286 | return (dirs);
|
---|
| 287 | }
|
---|
| 288 |
|
---|
| 289 | static int countfiles(struct dnode **dnp)
|
---|
| 290 | {
|
---|
| 291 | int nfiles;
|
---|
| 292 | struct dnode *cur;
|
---|
| 293 |
|
---|
| 294 | if (dnp == NULL)
|
---|
| 295 | return (0);
|
---|
| 296 | nfiles = 0;
|
---|
| 297 | for (cur = dnp[0]; cur->next != NULL; cur = cur->next)
|
---|
| 298 | nfiles++;
|
---|
| 299 | nfiles++;
|
---|
| 300 | return (nfiles);
|
---|
| 301 | }
|
---|
| 302 |
|
---|
| 303 | /* get memory to hold an array of pointers */
|
---|
| 304 | static struct dnode **dnalloc(int num)
|
---|
| 305 | {
|
---|
| 306 | struct dnode **p;
|
---|
| 307 |
|
---|
| 308 | if (num < 1)
|
---|
| 309 | return (NULL);
|
---|
| 310 |
|
---|
| 311 | p = (struct dnode **) xcalloc((size_t) num, (size_t) (sizeof(struct dnode *)));
|
---|
| 312 | return (p);
|
---|
| 313 | }
|
---|
| 314 |
|
---|
| 315 | #ifdef CONFIG_FEATURE_LS_RECURSIVE
|
---|
| 316 | static void dfree(struct dnode **dnp, int nfiles)
|
---|
| 317 | {
|
---|
| 318 | int i;
|
---|
| 319 |
|
---|
| 320 | if (dnp == NULL)
|
---|
| 321 | return;
|
---|
| 322 |
|
---|
| 323 | for (i = 0; i < nfiles; i++) {
|
---|
| 324 | struct dnode *cur = dnp[i];
|
---|
| 325 | if(cur->allocated)
|
---|
| 326 | free(cur->fullname); /* free the filename */
|
---|
| 327 | free(cur); /* free the dnode */
|
---|
| 328 | }
|
---|
| 329 | free(dnp); /* free the array holding the dnode pointers */
|
---|
| 330 | }
|
---|
| 331 | #else
|
---|
| 332 | #define dfree(...)
|
---|
| 333 | #endif
|
---|
| 334 |
|
---|
| 335 | static struct dnode **splitdnarray(struct dnode **dn, int nfiles, int which)
|
---|
| 336 | {
|
---|
| 337 | int dncnt, i, d;
|
---|
| 338 | struct dnode **dnp;
|
---|
| 339 |
|
---|
| 340 | if (dn == NULL || nfiles < 1)
|
---|
| 341 | return (NULL);
|
---|
| 342 |
|
---|
| 343 | /* count how many dirs and regular files there are */
|
---|
| 344 | if (which == SPLIT_SUBDIR)
|
---|
| 345 | dncnt = countsubdirs(dn, nfiles);
|
---|
| 346 | else {
|
---|
| 347 | dncnt = countdirs(dn, nfiles); /* assume we are looking for dirs */
|
---|
| 348 | if (which == SPLIT_FILE)
|
---|
| 349 | dncnt = nfiles - dncnt; /* looking for files */
|
---|
| 350 | }
|
---|
| 351 |
|
---|
| 352 | /* allocate a file array and a dir array */
|
---|
| 353 | dnp = dnalloc(dncnt);
|
---|
| 354 |
|
---|
| 355 | /* copy the entrys into the file or dir array */
|
---|
| 356 | for (d = i = 0; i < nfiles; i++) {
|
---|
| 357 | if (S_ISDIR(dn[i]->dstat.st_mode)) {
|
---|
| 358 | if (which & (SPLIT_DIR|SPLIT_SUBDIR)) {
|
---|
| 359 | if ((which & SPLIT_DIR)
|
---|
| 360 | || ((dn[i]->name[0] != '.')
|
---|
| 361 | || (dn[i]->name[1]
|
---|
| 362 | && ((dn[i]->name[1] != '.')
|
---|
| 363 | || dn[i]->name[2])))) {
|
---|
| 364 | dnp[d++] = dn[i];
|
---|
| 365 | }
|
---|
| 366 | }
|
---|
| 367 | } else if (!(which & (SPLIT_DIR|SPLIT_SUBDIR))) {
|
---|
| 368 | dnp[d++] = dn[i];
|
---|
| 369 | }
|
---|
| 370 | }
|
---|
| 371 | return (dnp);
|
---|
| 372 | }
|
---|
| 373 |
|
---|
| 374 | /*----------------------------------------------------------------------*/
|
---|
| 375 | #ifdef CONFIG_FEATURE_LS_SORTFILES
|
---|
| 376 | static int sortcmp(const void *a, const void *b)
|
---|
| 377 | {
|
---|
| 378 | struct dnode *d1 = *(struct dnode **)a;
|
---|
| 379 | struct dnode *d2 = *(struct dnode **)b;
|
---|
| 380 | unsigned int sort_opts = all_fmt & SORT_MASK;
|
---|
| 381 | int dif;
|
---|
| 382 |
|
---|
| 383 | dif = 0; /* assume SORT_NAME */
|
---|
| 384 | if (sort_opts == SORT_SIZE) {
|
---|
| 385 | dif = (int) (d2->dstat.st_size - d1->dstat.st_size);
|
---|
| 386 | } else if (sort_opts == SORT_ATIME) {
|
---|
| 387 | dif = (int) (d2->dstat.st_atime - d1->dstat.st_atime);
|
---|
| 388 | } else if (sort_opts == SORT_CTIME) {
|
---|
| 389 | dif = (int) (d2->dstat.st_ctime - d1->dstat.st_ctime);
|
---|
| 390 | } else if (sort_opts == SORT_MTIME) {
|
---|
| 391 | dif = (int) (d2->dstat.st_mtime - d1->dstat.st_mtime);
|
---|
| 392 | } else if (sort_opts == SORT_DIR) {
|
---|
| 393 | dif = S_ISDIR(d2->dstat.st_mode) - S_ISDIR(d1->dstat.st_mode);
|
---|
| 394 | /* } else if (sort_opts == SORT_VERSION) { */
|
---|
| 395 | /* } else if (sort_opts == SORT_EXT) { */
|
---|
| 396 | }
|
---|
| 397 |
|
---|
| 398 | if (dif == 0) {
|
---|
| 399 | /* sort by name- may be a tie_breaker for time or size cmp */
|
---|
| 400 | if (ENABLE_LOCALE_SUPPORT) dif = strcoll(d1->name, d2->name);
|
---|
| 401 | else dif = strcmp(d1->name, d2->name);
|
---|
| 402 | }
|
---|
| 403 |
|
---|
| 404 | if (all_fmt & SORT_ORDER_REVERSE) {
|
---|
| 405 | dif = -dif;
|
---|
| 406 | }
|
---|
| 407 | return (dif);
|
---|
| 408 | }
|
---|
| 409 |
|
---|
| 410 | /*----------------------------------------------------------------------*/
|
---|
| 411 | static void dnsort(struct dnode **dn, int size)
|
---|
| 412 | {
|
---|
| 413 | qsort(dn, size, sizeof *dn, sortcmp);
|
---|
| 414 | }
|
---|
| 415 | #else
|
---|
| 416 | #define sortcmp(a, b) 0
|
---|
| 417 | #define dnsort(dn, size)
|
---|
| 418 | #endif
|
---|
| 419 |
|
---|
| 420 |
|
---|
| 421 | /*----------------------------------------------------------------------*/
|
---|
| 422 | static void showfiles(struct dnode **dn, int nfiles)
|
---|
| 423 | {
|
---|
| 424 | int i, ncols, nrows, row, nc;
|
---|
| 425 | int column = 0;
|
---|
| 426 | int nexttab = 0;
|
---|
| 427 | int column_width = 0; /* for STYLE_LONG and STYLE_SINGLE not used */
|
---|
| 428 |
|
---|
| 429 | if (dn == NULL || nfiles < 1)
|
---|
| 430 | return;
|
---|
| 431 |
|
---|
| 432 | if (all_fmt & STYLE_ONE_RECORD_FLAG) {
|
---|
| 433 | ncols = 1;
|
---|
| 434 | } else {
|
---|
| 435 | /* find the longest file name- use that as the column width */
|
---|
| 436 | for (i = 0; i < nfiles; i++) {
|
---|
| 437 | int len = strlen(dn[i]->name) +
|
---|
| 438 | #ifdef CONFIG_SELINUX
|
---|
| 439 | ((all_fmt & LIST_CONTEXT) ? 33 : 0) +
|
---|
| 440 | #endif
|
---|
| 441 | ((all_fmt & LIST_INO) ? 8 : 0) +
|
---|
| 442 | ((all_fmt & LIST_BLOCKS) ? 5 : 0);
|
---|
| 443 | if (column_width < len)
|
---|
| 444 | column_width = len;
|
---|
| 445 | }
|
---|
| 446 | column_width += tabstops;
|
---|
| 447 | ncols = (int) (terminal_width / column_width);
|
---|
| 448 | }
|
---|
| 449 |
|
---|
| 450 | if (ncols > 1) {
|
---|
| 451 | nrows = nfiles / ncols;
|
---|
| 452 | if ((nrows * ncols) < nfiles)
|
---|
| 453 | nrows++; /* round up fractionals */
|
---|
| 454 | } else {
|
---|
| 455 | nrows = nfiles;
|
---|
| 456 | ncols = 1;
|
---|
| 457 | }
|
---|
| 458 |
|
---|
| 459 | for (row = 0; row < nrows; row++) {
|
---|
| 460 | for (nc = 0; nc < ncols; nc++) {
|
---|
| 461 | /* reach into the array based on the column and row */
|
---|
| 462 | i = (nc * nrows) + row; /* assume display by column */
|
---|
| 463 | if (all_fmt & DISP_ROWS)
|
---|
| 464 | i = (row * ncols) + nc; /* display across row */
|
---|
| 465 | if (i < nfiles) {
|
---|
| 466 | if (column > 0) {
|
---|
| 467 | nexttab -= column;
|
---|
| 468 | while (nexttab--) {
|
---|
| 469 | putchar(' ');
|
---|
| 470 | column++;
|
---|
| 471 | }
|
---|
| 472 | }
|
---|
| 473 | nexttab = column + column_width;
|
---|
| 474 | column += list_single(dn[i]);
|
---|
| 475 | }
|
---|
| 476 | }
|
---|
| 477 | putchar('\n');
|
---|
| 478 | column = 0;
|
---|
| 479 | }
|
---|
| 480 | }
|
---|
| 481 |
|
---|
| 482 | /*----------------------------------------------------------------------*/
|
---|
| 483 | static void showdirs(struct dnode **dn, int ndirs, int first)
|
---|
| 484 | {
|
---|
| 485 | int i, nfiles;
|
---|
| 486 | struct dnode **subdnp;
|
---|
| 487 | int dndirs;
|
---|
| 488 | struct dnode **dnd;
|
---|
| 489 |
|
---|
| 490 | if (dn == NULL || ndirs < 1)
|
---|
| 491 | return;
|
---|
| 492 |
|
---|
| 493 | for (i = 0; i < ndirs; i++) {
|
---|
| 494 | if (all_fmt & (DISP_DIRNAME | DISP_RECURSIVE)) {
|
---|
| 495 | if (!first)
|
---|
| 496 | printf("\n");
|
---|
| 497 | first = 0;
|
---|
| 498 | printf("%s:\n", dn[i]->fullname);
|
---|
| 499 | }
|
---|
| 500 | subdnp = list_dir(dn[i]->fullname);
|
---|
| 501 | nfiles = countfiles(subdnp);
|
---|
| 502 | if (nfiles > 0) {
|
---|
| 503 | /* list all files at this level */
|
---|
| 504 | if (ENABLE_FEATURE_LS_SORTFILES) dnsort(subdnp, nfiles);
|
---|
| 505 | showfiles(subdnp, nfiles);
|
---|
| 506 | if (ENABLE_FEATURE_LS_RECURSIVE) {
|
---|
| 507 | if (all_fmt & DISP_RECURSIVE) {
|
---|
| 508 | /* recursive- list the sub-dirs */
|
---|
| 509 | dnd = splitdnarray(subdnp, nfiles, SPLIT_SUBDIR);
|
---|
| 510 | dndirs = countsubdirs(subdnp, nfiles);
|
---|
| 511 | if (dndirs > 0) {
|
---|
| 512 | if (ENABLE_FEATURE_LS_SORTFILES) dnsort(dnd, dndirs);
|
---|
| 513 | showdirs(dnd, dndirs, 0);
|
---|
| 514 | /* free the array of dnode pointers to the dirs */
|
---|
| 515 | free(dnd);
|
---|
| 516 | }
|
---|
| 517 | }
|
---|
| 518 | /* free the dnodes and the fullname mem */
|
---|
| 519 | dfree(subdnp, nfiles);
|
---|
| 520 | }
|
---|
| 521 | }
|
---|
| 522 | }
|
---|
| 523 | }
|
---|
| 524 |
|
---|
| 525 | /*----------------------------------------------------------------------*/
|
---|
| 526 | static struct dnode **list_dir(const char *path)
|
---|
| 527 | {
|
---|
| 528 | struct dnode *dn, *cur, **dnp;
|
---|
| 529 | struct dirent *entry;
|
---|
| 530 | DIR *dir;
|
---|
| 531 | int i, nfiles;
|
---|
| 532 |
|
---|
| 533 | if (path == NULL)
|
---|
| 534 | return (NULL);
|
---|
| 535 |
|
---|
| 536 | dn = NULL;
|
---|
| 537 | nfiles = 0;
|
---|
| 538 | dir = bb_opendir(path);
|
---|
| 539 | if (dir == NULL) {
|
---|
| 540 | status = EXIT_FAILURE;
|
---|
| 541 | return (NULL); /* could not open the dir */
|
---|
| 542 | }
|
---|
| 543 | while ((entry = readdir(dir)) != NULL) {
|
---|
| 544 | char *fullname;
|
---|
| 545 |
|
---|
| 546 | /* are we going to list the file- it may be . or .. or a hidden file */
|
---|
| 547 | if (entry->d_name[0] == '.') {
|
---|
| 548 | if ((entry->d_name[1] == 0 || (
|
---|
| 549 | entry->d_name[1] == '.'
|
---|
| 550 | && entry->d_name[2] == 0))
|
---|
| 551 | && !(all_fmt & DISP_DOT))
|
---|
| 552 | continue;
|
---|
| 553 | if (!(all_fmt & DISP_HIDDEN))
|
---|
| 554 | continue;
|
---|
| 555 | }
|
---|
| 556 | fullname = concat_path_file(path, entry->d_name);
|
---|
| 557 | cur = my_stat(fullname, strrchr(fullname, '/') + 1);
|
---|
| 558 | if (!cur)
|
---|
| 559 | continue;
|
---|
| 560 | cur->allocated = 1;
|
---|
| 561 | cur->next = dn;
|
---|
| 562 | dn = cur;
|
---|
| 563 | nfiles++;
|
---|
| 564 | }
|
---|
| 565 | closedir(dir);
|
---|
| 566 |
|
---|
| 567 | /* now that we know how many files there are
|
---|
| 568 | ** allocate memory for an array to hold dnode pointers
|
---|
| 569 | */
|
---|
| 570 | if (dn == NULL)
|
---|
| 571 | return (NULL);
|
---|
| 572 | dnp = dnalloc(nfiles);
|
---|
| 573 | for (i = 0, cur = dn; i < nfiles; i++) {
|
---|
| 574 | dnp[i] = cur; /* save pointer to node in array */
|
---|
| 575 | cur = cur->next;
|
---|
| 576 | }
|
---|
| 577 |
|
---|
| 578 | return (dnp);
|
---|
| 579 | }
|
---|
| 580 |
|
---|
| 581 | /*----------------------------------------------------------------------*/
|
---|
| 582 | static int list_single(struct dnode *dn)
|
---|
| 583 | {
|
---|
| 584 | int i, column = 0;
|
---|
| 585 |
|
---|
| 586 | #ifdef CONFIG_FEATURE_LS_USERNAME
|
---|
| 587 | char scratch[16];
|
---|
| 588 | #endif
|
---|
| 589 | #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
|
---|
| 590 | char *filetime;
|
---|
| 591 | time_t ttime, age;
|
---|
| 592 | #endif
|
---|
| 593 | #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined (CONFIG_FEATURE_LS_COLOR)
|
---|
| 594 | struct stat info;
|
---|
| 595 | char append;
|
---|
| 596 | #endif
|
---|
| 597 |
|
---|
| 598 | if (dn->fullname == NULL)
|
---|
| 599 | return (0);
|
---|
| 600 |
|
---|
| 601 | #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
|
---|
| 602 | ttime = dn->dstat.st_mtime; /* the default time */
|
---|
| 603 | if (all_fmt & TIME_ACCESS)
|
---|
| 604 | ttime = dn->dstat.st_atime;
|
---|
| 605 | if (all_fmt & TIME_CHANGE)
|
---|
| 606 | ttime = dn->dstat.st_ctime;
|
---|
| 607 | filetime = ctime(&ttime);
|
---|
| 608 | #endif
|
---|
| 609 | #ifdef CONFIG_FEATURE_LS_FILETYPES
|
---|
| 610 | append = append_char(dn->dstat.st_mode);
|
---|
| 611 | #endif
|
---|
| 612 |
|
---|
| 613 | for (i = 0; i <= 31; i++) {
|
---|
| 614 | switch (all_fmt & (1 << i)) {
|
---|
| 615 | case LIST_INO:
|
---|
| 616 | column += printf("%7ld ", (long int) dn->dstat.st_ino);
|
---|
| 617 | break;
|
---|
| 618 | case LIST_BLOCKS:
|
---|
| 619 | #if _FILE_OFFSET_BITS == 64
|
---|
| 620 | column += printf("%4lld ", (long long)dn->dstat.st_blocks >> 1);
|
---|
| 621 | #else
|
---|
| 622 | column += printf("%4ld ", dn->dstat.st_blocks >> 1);
|
---|
| 623 | #endif
|
---|
| 624 | break;
|
---|
| 625 | case LIST_MODEBITS:
|
---|
| 626 | column += printf("%-10s ", (char *) bb_mode_string(dn->dstat.st_mode));
|
---|
| 627 | break;
|
---|
| 628 | case LIST_NLINKS:
|
---|
| 629 | column += printf("%4ld ", (long) dn->dstat.st_nlink);
|
---|
| 630 | break;
|
---|
| 631 | case LIST_ID_NAME:
|
---|
| 632 | #ifdef CONFIG_FEATURE_LS_USERNAME
|
---|
| 633 | bb_getpwuid(scratch, dn->dstat.st_uid, sizeof(scratch));
|
---|
| 634 | printf("%-8.8s ", scratch);
|
---|
| 635 | bb_getgrgid(scratch, dn->dstat.st_gid, sizeof(scratch));
|
---|
| 636 | printf("%-8.8s", scratch);
|
---|
| 637 | column += 17;
|
---|
| 638 | break;
|
---|
| 639 | #endif
|
---|
| 640 | case LIST_ID_NUMERIC:
|
---|
| 641 | column += printf("%-8d %-8d", dn->dstat.st_uid, dn->dstat.st_gid);
|
---|
| 642 | break;
|
---|
| 643 | case LIST_SIZE:
|
---|
| 644 | case LIST_DEV:
|
---|
| 645 | if (S_ISBLK(dn->dstat.st_mode) || S_ISCHR(dn->dstat.st_mode)) {
|
---|
| 646 | column += printf("%4d, %3d ", (int) major(dn->dstat.st_rdev),
|
---|
| 647 | (int) minor(dn->dstat.st_rdev));
|
---|
| 648 | } else {
|
---|
| 649 | #ifdef CONFIG_FEATURE_HUMAN_READABLE
|
---|
| 650 | if (all_fmt & LS_DISP_HR) {
|
---|
| 651 | column += printf("%9s ",
|
---|
| 652 | make_human_readable_str(dn->dstat.st_size, 1, 0));
|
---|
| 653 | } else
|
---|
| 654 | #endif
|
---|
| 655 | {
|
---|
| 656 | #if _FILE_OFFSET_BITS == 64
|
---|
| 657 | column += printf("%9lld ", (long long) dn->dstat.st_size);
|
---|
| 658 | #else
|
---|
| 659 | column += printf("%9ld ", dn->dstat.st_size);
|
---|
| 660 | #endif
|
---|
| 661 | }
|
---|
| 662 | }
|
---|
| 663 | break;
|
---|
| 664 | #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
|
---|
| 665 | case LIST_FULLTIME:
|
---|
| 666 | printf("%24.24s ", filetime);
|
---|
| 667 | column += 25;
|
---|
| 668 | break;
|
---|
| 669 | case LIST_DATE_TIME:
|
---|
| 670 | if ((all_fmt & LIST_FULLTIME) == 0) {
|
---|
| 671 | age = time(NULL) - ttime;
|
---|
| 672 | printf("%6.6s ", filetime + 4);
|
---|
| 673 | if (age < 3600L * 24 * 365 / 2 && age > -15 * 60) {
|
---|
| 674 | /* hh:mm if less than 6 months old */
|
---|
| 675 | printf("%5.5s ", filetime + 11);
|
---|
| 676 | } else {
|
---|
| 677 | printf(" %4.4s ", filetime + 20);
|
---|
| 678 | }
|
---|
| 679 | column += 13;
|
---|
| 680 | }
|
---|
| 681 | break;
|
---|
| 682 | #endif
|
---|
| 683 | #ifdef CONFIG_SELINUX
|
---|
| 684 | case LIST_CONTEXT:
|
---|
| 685 | {
|
---|
| 686 | char context[80];
|
---|
| 687 | int len = 0;
|
---|
| 688 |
|
---|
| 689 | if (dn->sid) {
|
---|
| 690 | /* I assume sid initilized with NULL */
|
---|
| 691 | len = strlen(dn->sid)+1;
|
---|
| 692 | safe_strncpy(context, dn->sid, len);
|
---|
| 693 | freecon(dn->sid);
|
---|
| 694 | }else {
|
---|
| 695 | safe_strncpy(context, "unknown", 8);
|
---|
| 696 | }
|
---|
| 697 | printf("%-32s ", context);
|
---|
| 698 | column += MAX(33, len);
|
---|
| 699 | }
|
---|
| 700 | break;
|
---|
| 701 | #endif
|
---|
| 702 | case LIST_FILENAME:
|
---|
| 703 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 704 | errno = 0;
|
---|
| 705 | if (show_color && !lstat(dn->fullname, &info)) {
|
---|
| 706 | printf("\033[%d;%dm", bgcolor(info.st_mode),
|
---|
| 707 | fgcolor(info.st_mode));
|
---|
| 708 | }
|
---|
| 709 | #endif
|
---|
| 710 | column += printf("%s", dn->name);
|
---|
| 711 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 712 | if (show_color) {
|
---|
| 713 | printf("\033[0m");
|
---|
| 714 | }
|
---|
| 715 | #endif
|
---|
| 716 | break;
|
---|
| 717 | case LIST_SYMLINK:
|
---|
| 718 | if (S_ISLNK(dn->dstat.st_mode)) {
|
---|
| 719 | char *lpath = xreadlink(dn->fullname);
|
---|
| 720 |
|
---|
| 721 | if (lpath) {
|
---|
| 722 | printf(" -> ");
|
---|
| 723 | #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined (CONFIG_FEATURE_LS_COLOR)
|
---|
| 724 | if (!stat(dn->fullname, &info)) {
|
---|
| 725 | append = append_char(info.st_mode);
|
---|
| 726 | }
|
---|
| 727 | #endif
|
---|
| 728 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 729 | if (show_color) {
|
---|
| 730 | errno = 0;
|
---|
| 731 | printf("\033[%d;%dm", bgcolor(info.st_mode),
|
---|
| 732 | fgcolor(info.st_mode));
|
---|
| 733 | }
|
---|
| 734 | #endif
|
---|
| 735 | column += printf("%s", lpath) + 4;
|
---|
| 736 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 737 | if (show_color) {
|
---|
| 738 | printf("\033[0m");
|
---|
| 739 | }
|
---|
| 740 | #endif
|
---|
| 741 | free(lpath);
|
---|
| 742 | }
|
---|
| 743 | }
|
---|
| 744 | break;
|
---|
| 745 | #ifdef CONFIG_FEATURE_LS_FILETYPES
|
---|
| 746 | case LIST_FILETYPE:
|
---|
| 747 | if (append != '\0') {
|
---|
| 748 | printf("%1c", append);
|
---|
| 749 | column++;
|
---|
| 750 | }
|
---|
| 751 | break;
|
---|
| 752 | #endif
|
---|
| 753 | }
|
---|
| 754 | }
|
---|
| 755 |
|
---|
| 756 | return column;
|
---|
| 757 | }
|
---|
| 758 |
|
---|
| 759 | /*----------------------------------------------------------------------*/
|
---|
| 760 |
|
---|
| 761 | /* "[-]Cadil1", POSIX mandated options, busybox always supports */
|
---|
| 762 | /* "[-]gnsx", POSIX non-mandated options, busybox always supports */
|
---|
| 763 | /* "[-]Ak" GNU options, busybox always supports */
|
---|
| 764 | /* "[-]FLRctur", POSIX mandated options, busybox optionally supports */
|
---|
| 765 | /* "[-]p", POSIX non-mandated options, busybox optionally supports */
|
---|
| 766 | /* "[-]SXvThw", GNU options, busybox optionally supports */
|
---|
| 767 | /* "[-]K", SELinux mandated options, busybox optionally supports */
|
---|
| 768 | /* "[-]e", I think we made this one up */
|
---|
| 769 |
|
---|
| 770 | #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
|
---|
| 771 | # define LS_STR_TIMESTAMPS "cetu"
|
---|
| 772 | #else
|
---|
| 773 | # define LS_STR_TIMESTAMPS ""
|
---|
| 774 | #endif
|
---|
| 775 |
|
---|
| 776 | #ifdef CONFIG_FEATURE_LS_FILETYPES
|
---|
| 777 | # define LS_STR_FILETYPES "Fp"
|
---|
| 778 | #else
|
---|
| 779 | # define LS_STR_FILETYPES ""
|
---|
| 780 | #endif
|
---|
| 781 |
|
---|
| 782 | #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
|
---|
| 783 | # define LS_STR_FOLLOW_LINKS "L"
|
---|
| 784 | #else
|
---|
| 785 | # define LS_STR_FOLLOW_LINKS ""
|
---|
| 786 | #endif
|
---|
| 787 |
|
---|
| 788 | #ifdef CONFIG_FEATURE_LS_RECURSIVE
|
---|
| 789 | # define LS_STR_RECURSIVE "R"
|
---|
| 790 | #else
|
---|
| 791 | # define LS_STR_RECURSIVE ""
|
---|
| 792 | #endif
|
---|
| 793 |
|
---|
| 794 | #ifdef CONFIG_FEATURE_HUMAN_READABLE
|
---|
| 795 | # define LS_STR_HUMAN_READABLE "h"
|
---|
| 796 | #else
|
---|
| 797 | # define LS_STR_HUMAN_READABLE ""
|
---|
| 798 | #endif
|
---|
| 799 |
|
---|
| 800 | #ifdef CONFIG_SELINUX
|
---|
| 801 | # define LS_STR_SELINUX "K"
|
---|
| 802 | #else
|
---|
| 803 | # define LS_STR_SELINUX ""
|
---|
| 804 | #endif
|
---|
| 805 |
|
---|
| 806 | #ifdef CONFIG_FEATURE_AUTOWIDTH
|
---|
| 807 | # define LS_STR_AUTOWIDTH "T:w:"
|
---|
| 808 | #else
|
---|
| 809 | # define LS_STR_AUTOWIDTH ""
|
---|
| 810 | #endif
|
---|
| 811 |
|
---|
| 812 | static const char ls_options[]="Cadil1gnsxAk" \
|
---|
| 813 | LS_STR_TIMESTAMPS \
|
---|
| 814 | USE_FEATURE_LS_SORTFILES("SXrv") \
|
---|
| 815 | LS_STR_FILETYPES \
|
---|
| 816 | LS_STR_FOLLOW_LINKS \
|
---|
| 817 | LS_STR_RECURSIVE \
|
---|
| 818 | LS_STR_HUMAN_READABLE \
|
---|
| 819 | LS_STR_SELINUX \
|
---|
| 820 | LS_STR_AUTOWIDTH;
|
---|
| 821 |
|
---|
| 822 | #define LIST_MASK_TRIGGER 0
|
---|
| 823 | #define STYLE_MASK_TRIGGER STYLE_MASK
|
---|
| 824 | #define SORT_MASK_TRIGGER SORT_MASK
|
---|
| 825 | #define DISP_MASK_TRIGGER DISP_ROWS
|
---|
| 826 |
|
---|
| 827 | static const unsigned opt_flags[] = {
|
---|
| 828 | LIST_SHORT | STYLE_COLUMNS, /* C */
|
---|
| 829 | DISP_HIDDEN | DISP_DOT, /* a */
|
---|
| 830 | DISP_NOLIST, /* d */
|
---|
| 831 | LIST_INO, /* i */
|
---|
| 832 | LIST_LONG | STYLE_LONG, /* l - remember LS_DISP_HR in mask! */
|
---|
| 833 | LIST_SHORT | STYLE_SINGLE, /* 1 */
|
---|
| 834 | 0, /* g - ingored */
|
---|
| 835 | LIST_ID_NUMERIC, /* n */
|
---|
| 836 | LIST_BLOCKS, /* s */
|
---|
| 837 | DISP_ROWS, /* x */
|
---|
| 838 | DISP_HIDDEN, /* A */
|
---|
| 839 | #ifdef CONFIG_SELINUX
|
---|
| 840 | LIST_CONTEXT, /* k */
|
---|
| 841 | #else
|
---|
| 842 | 0, /* k - ingored */
|
---|
| 843 | #endif
|
---|
| 844 | #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
|
---|
| 845 | TIME_CHANGE | (ENABLE_FEATURE_LS_SORTFILES * SORT_CTIME), /* c */
|
---|
| 846 | LIST_FULLTIME, /* e */
|
---|
| 847 | ENABLE_FEATURE_LS_SORTFILES * SORT_MTIME, /* t */
|
---|
| 848 | TIME_ACCESS | (ENABLE_FEATURE_LS_SORTFILES * SORT_ATIME), /* u */
|
---|
| 849 | #endif
|
---|
| 850 | #ifdef CONFIG_FEATURE_LS_SORTFILES
|
---|
| 851 | SORT_SIZE, /* S */
|
---|
| 852 | SORT_EXT, /* X */
|
---|
| 853 | SORT_ORDER_REVERSE, /* r */
|
---|
| 854 | SORT_VERSION, /* v */
|
---|
| 855 | #endif
|
---|
| 856 | #ifdef CONFIG_FEATURE_LS_FILETYPES
|
---|
| 857 | LIST_FILETYPE | LIST_EXEC, /* F */
|
---|
| 858 | LIST_FILETYPE, /* p */
|
---|
| 859 | #endif
|
---|
| 860 | #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
|
---|
| 861 | FOLLOW_LINKS, /* L */
|
---|
| 862 | #endif
|
---|
| 863 | #ifdef CONFIG_FEATURE_LS_RECURSIVE
|
---|
| 864 | DISP_RECURSIVE, /* R */
|
---|
| 865 | #endif
|
---|
| 866 | #ifdef CONFIG_FEATURE_HUMAN_READABLE
|
---|
| 867 | LS_DISP_HR, /* h */
|
---|
| 868 | #endif
|
---|
| 869 | #ifdef CONFIG_SELINUX
|
---|
| 870 | LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME, /* K */
|
---|
| 871 | #endif
|
---|
| 872 | #ifdef CONFIG_FEATURE_AUTOWIDTH
|
---|
| 873 | 0, 0, /* T, w - ignored */
|
---|
| 874 | #endif
|
---|
| 875 | (1U<<31)
|
---|
| 876 | };
|
---|
| 877 |
|
---|
| 878 |
|
---|
| 879 | /*----------------------------------------------------------------------*/
|
---|
| 880 |
|
---|
| 881 | int ls_main(int argc, char **argv)
|
---|
| 882 | {
|
---|
| 883 | struct dnode **dnd;
|
---|
| 884 | struct dnode **dnf;
|
---|
| 885 | struct dnode **dnp;
|
---|
| 886 | struct dnode *dn;
|
---|
| 887 | struct dnode *cur;
|
---|
| 888 | long opt;
|
---|
| 889 | int nfiles = 0;
|
---|
| 890 | int dnfiles;
|
---|
| 891 | int dndirs;
|
---|
| 892 | int oi;
|
---|
| 893 | int ac;
|
---|
| 894 | int i;
|
---|
| 895 | char **av;
|
---|
| 896 | #ifdef CONFIG_FEATURE_AUTOWIDTH
|
---|
| 897 | char *tabstops_str = NULL;
|
---|
| 898 | char *terminal_width_str = NULL;
|
---|
| 899 | #endif
|
---|
| 900 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 901 | char *color_opt;
|
---|
| 902 | #endif
|
---|
| 903 |
|
---|
| 904 | all_fmt = LIST_SHORT |
|
---|
| 905 | (ENABLE_FEATURE_LS_SORTFILES * (SORT_NAME | SORT_ORDER_FORWARD));
|
---|
| 906 |
|
---|
| 907 | #ifdef CONFIG_FEATURE_AUTOWIDTH
|
---|
| 908 | /* Obtain the terminal width. */
|
---|
| 909 | get_terminal_width_height(STDOUT_FILENO, &terminal_width, NULL);
|
---|
| 910 | /* Go one less... */
|
---|
| 911 | terminal_width--;
|
---|
| 912 | #endif
|
---|
| 913 |
|
---|
| 914 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 915 | bb_applet_long_options = ls_color_opt;
|
---|
| 916 | #endif
|
---|
| 917 |
|
---|
| 918 | /* process options */
|
---|
| 919 | #ifdef CONFIG_FEATURE_AUTOWIDTH
|
---|
| 920 | opt = bb_getopt_ulflags(argc, argv, ls_options, &tabstops_str, &terminal_width_str
|
---|
| 921 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 922 | , &color_opt
|
---|
| 923 | #endif
|
---|
| 924 | );
|
---|
| 925 | if (tabstops_str) {
|
---|
| 926 | tabstops = atoi(tabstops_str);
|
---|
| 927 | }
|
---|
| 928 | if (terminal_width_str) {
|
---|
| 929 | terminal_width = atoi(terminal_width_str);
|
---|
| 930 | }
|
---|
| 931 | #else
|
---|
| 932 | opt = bb_getopt_ulflags(argc, argv, ls_options
|
---|
| 933 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 934 | , &color_opt
|
---|
| 935 | #endif
|
---|
| 936 | );
|
---|
| 937 | #endif
|
---|
| 938 | for (i = 0; opt_flags[i] != (1U<<31); i++) {
|
---|
| 939 | if (opt & (1 << i)) {
|
---|
| 940 | unsigned int flags = opt_flags[i];
|
---|
| 941 |
|
---|
| 942 | if (flags & LIST_MASK_TRIGGER) {
|
---|
| 943 | all_fmt &= ~LIST_MASK;
|
---|
| 944 | }
|
---|
| 945 | if (flags & STYLE_MASK_TRIGGER) {
|
---|
| 946 | all_fmt &= ~STYLE_MASK;
|
---|
| 947 | }
|
---|
| 948 | if (ENABLE_FEATURE_LS_SORTFILES && (flags & SORT_MASK_TRIGGER)) {
|
---|
| 949 | all_fmt &= ~SORT_MASK;
|
---|
| 950 | }
|
---|
| 951 | if (flags & DISP_MASK_TRIGGER) {
|
---|
| 952 | all_fmt &= ~DISP_MASK;
|
---|
| 953 | }
|
---|
| 954 | if (flags & TIME_MASK) {
|
---|
| 955 | all_fmt &= ~TIME_MASK;
|
---|
| 956 | }
|
---|
| 957 | if (flags & LIST_CONTEXT) {
|
---|
| 958 | all_fmt |= STYLE_SINGLE;
|
---|
| 959 | }
|
---|
| 960 | #ifdef CONFIG_FEATURE_HUMAN_READABLE
|
---|
| 961 | if (opt == 'l') {
|
---|
| 962 | all_fmt &= ~LS_DISP_HR;
|
---|
| 963 | }
|
---|
| 964 | #endif
|
---|
| 965 | all_fmt |= flags;
|
---|
| 966 | }
|
---|
| 967 | }
|
---|
| 968 |
|
---|
| 969 | #ifdef CONFIG_FEATURE_LS_COLOR
|
---|
| 970 | {
|
---|
| 971 | /* find color bit value - last position for short getopt */
|
---|
| 972 |
|
---|
| 973 | #if CONFIG_FEATURE_LS_COLOR_IS_DEFAULT
|
---|
| 974 | char *p;
|
---|
| 975 |
|
---|
| 976 | if ((p = getenv ("LS_COLORS")) != NULL &&
|
---|
| 977 | (*p == '\0' || (strcmp(p, "none") == 0))) {
|
---|
| 978 | ;
|
---|
| 979 | } else if (isatty(STDOUT_FILENO)) {
|
---|
| 980 | show_color = 1;
|
---|
| 981 | }
|
---|
| 982 | #endif
|
---|
| 983 |
|
---|
| 984 | if((opt & (1 << i))) { /* next flag after short options */
|
---|
| 985 | if (color_opt == NULL || strcmp("always", color_opt) == 0)
|
---|
| 986 | show_color = 1;
|
---|
| 987 | else if (color_opt != NULL && strcmp("never", color_opt) == 0)
|
---|
| 988 | show_color = 0;
|
---|
| 989 | else if (color_opt != NULL && strcmp("auto", color_opt) == 0 && isatty(STDOUT_FILENO))
|
---|
| 990 | show_color = 1;
|
---|
| 991 | }
|
---|
| 992 | }
|
---|
| 993 | #endif
|
---|
| 994 |
|
---|
| 995 | /* sort out which command line options take precedence */
|
---|
| 996 | #ifdef CONFIG_FEATURE_LS_RECURSIVE
|
---|
| 997 | if (all_fmt & DISP_NOLIST)
|
---|
| 998 | all_fmt &= ~DISP_RECURSIVE; /* no recurse if listing only dir */
|
---|
| 999 | #endif
|
---|
| 1000 | if (ENABLE_FEATURE_LS_TIMESTAMPS && ENABLE_FEATURE_LS_SORTFILES) {
|
---|
| 1001 | if (all_fmt & TIME_CHANGE)
|
---|
| 1002 | all_fmt = (all_fmt & ~SORT_MASK) | SORT_CTIME;
|
---|
| 1003 | if (all_fmt & TIME_ACCESS)
|
---|
| 1004 | all_fmt = (all_fmt & ~SORT_MASK) | SORT_ATIME;
|
---|
| 1005 | }
|
---|
| 1006 | if ((all_fmt & STYLE_MASK) != STYLE_LONG) /* only for long list */
|
---|
| 1007 | all_fmt &= ~(LIST_ID_NUMERIC|LIST_FULLTIME|LIST_ID_NAME|LIST_ID_NUMERIC);
|
---|
| 1008 | #ifdef CONFIG_FEATURE_LS_USERNAME
|
---|
| 1009 | if ((all_fmt & STYLE_MASK) == STYLE_LONG && (all_fmt & LIST_ID_NUMERIC))
|
---|
| 1010 | all_fmt &= ~LIST_ID_NAME; /* don't list names if numeric uid */
|
---|
| 1011 | #endif
|
---|
| 1012 |
|
---|
| 1013 | /* choose a display format */
|
---|
| 1014 | if (!(all_fmt & STYLE_MASK))
|
---|
| 1015 | all_fmt |= (isatty(STDOUT_FILENO) ? STYLE_COLUMNS : STYLE_SINGLE);
|
---|
| 1016 |
|
---|
| 1017 | /*
|
---|
| 1018 | * when there are no cmd line args we have to supply a default "." arg.
|
---|
| 1019 | * we will create a second argv array, "av" that will hold either
|
---|
| 1020 | * our created "." arg, or the real cmd line args. The av array
|
---|
| 1021 | * just holds the pointers- we don't move the date the pointers
|
---|
| 1022 | * point to.
|
---|
| 1023 | */
|
---|
| 1024 | ac = argc - optind; /* how many cmd line args are left */
|
---|
| 1025 | if (ac < 1) {
|
---|
| 1026 | static const char * const dotdir[] = { "." };
|
---|
| 1027 |
|
---|
| 1028 | av = (char **) dotdir;
|
---|
| 1029 | ac = 1;
|
---|
| 1030 | } else {
|
---|
| 1031 | av = argv + optind;
|
---|
| 1032 | }
|
---|
| 1033 |
|
---|
| 1034 | /* now, everything is in the av array */
|
---|
| 1035 | if (ac > 1)
|
---|
| 1036 | all_fmt |= DISP_DIRNAME; /* 2 or more items? label directories */
|
---|
| 1037 |
|
---|
| 1038 | /* stuff the command line file names into an dnode array */
|
---|
| 1039 | dn = NULL;
|
---|
| 1040 | for (oi = 0; oi < ac; oi++) {
|
---|
| 1041 | cur = my_stat(av[oi], av[oi]);
|
---|
| 1042 | if (!cur)
|
---|
| 1043 | continue;
|
---|
| 1044 | cur->allocated = 0;
|
---|
| 1045 | cur->next = dn;
|
---|
| 1046 | dn = cur;
|
---|
| 1047 | nfiles++;
|
---|
| 1048 | }
|
---|
| 1049 |
|
---|
| 1050 | /* now that we know how many files there are
|
---|
| 1051 | ** allocate memory for an array to hold dnode pointers
|
---|
| 1052 | */
|
---|
| 1053 | dnp = dnalloc(nfiles);
|
---|
| 1054 | for (i = 0, cur = dn; i < nfiles; i++) {
|
---|
| 1055 | dnp[i] = cur; /* save pointer to node in array */
|
---|
| 1056 | cur = cur->next;
|
---|
| 1057 | }
|
---|
| 1058 |
|
---|
| 1059 | if (all_fmt & DISP_NOLIST) {
|
---|
| 1060 | if (ENABLE_FEATURE_LS_SORTFILES) dnsort(dnp, nfiles);
|
---|
| 1061 | if (nfiles > 0)
|
---|
| 1062 | showfiles(dnp, nfiles);
|
---|
| 1063 | } else {
|
---|
| 1064 | dnd = splitdnarray(dnp, nfiles, SPLIT_DIR);
|
---|
| 1065 | dnf = splitdnarray(dnp, nfiles, SPLIT_FILE);
|
---|
| 1066 | dndirs = countdirs(dnp, nfiles);
|
---|
| 1067 | dnfiles = nfiles - dndirs;
|
---|
| 1068 | if (dnfiles > 0) {
|
---|
| 1069 | if (ENABLE_FEATURE_LS_SORTFILES) dnsort(dnf, dnfiles);
|
---|
| 1070 | showfiles(dnf, dnfiles);
|
---|
| 1071 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 1072 | free(dnf);
|
---|
| 1073 | }
|
---|
| 1074 | if (dndirs > 0) {
|
---|
| 1075 | if (ENABLE_FEATURE_LS_SORTFILES) dnsort(dnd, dndirs);
|
---|
| 1076 | showdirs(dnd, dndirs, dnfiles == 0);
|
---|
| 1077 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 1078 | free(dnd);
|
---|
| 1079 | }
|
---|
| 1080 | }
|
---|
| 1081 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 1082 | dfree(dnp, nfiles);
|
---|
| 1083 | return (status);
|
---|
| 1084 | }
|
---|