1 /* 2 * Copyright (c) 1989, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Michael Fischbein. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)print.c 8.4 (Berkeley) 4/17/94 33 * $FreeBSD: src/bin/ls/print.c,v 1.73 2004/06/08 09:27:42 das Exp $ 34 * $DragonFly: src/bin/ls/print.c,v 1.20 2008/06/24 21:55:48 y0netan1 Exp $ 35 */ 36 37 #include <sys/param.h> 38 #include <sys/stat.h> 39 40 #include <err.h> 41 #include <errno.h> 42 #include <fts.h> 43 #include <langinfo.h> 44 #include <libutil.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <time.h> 49 #include <unistd.h> 50 #ifdef COLORLS 51 #include <ctype.h> 52 #include <termcap.h> 53 #include <signal.h> 54 #endif 55 56 #include "ls.h" 57 #include "extern.h" 58 59 static int printaname(const FTSENT *, u_long, u_long); 60 static void printlink(const FTSENT *); 61 static void printtime(time_t); 62 static int printtype(u_int); 63 static void printsize(size_t, off_t); 64 #ifdef COLORLS 65 static void endcolor(int); 66 static int colortype(mode_t); 67 #endif 68 69 #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) 70 71 #ifdef COLORLS 72 /* Most of these are taken from <sys/stat.h> */ 73 typedef enum Colors { 74 C_DIR, /* directory */ 75 C_LNK, /* symbolic link */ 76 C_SOCK, /* socket */ 77 C_FIFO, /* pipe */ 78 C_EXEC, /* executable */ 79 C_BLK, /* block special */ 80 C_CHR, /* character special */ 81 C_SUID, /* setuid executable */ 82 C_SGID, /* setgid executable */ 83 C_WSDIR, /* directory writeble to others, with sticky 84 * bit */ 85 C_WDIR, /* directory writeble to others, without 86 * sticky bit */ 87 C_NUMCOLORS /* just a place-holder */ 88 } Colors; 89 90 static const char *defcolors = "exfxcxdxbxegedabagacad"; 91 92 /* colors for file types */ 93 static struct { 94 int num[2]; 95 int bold; 96 } colors[C_NUMCOLORS]; 97 #endif 98 99 void 100 printscol(const DISPLAY *dp) 101 { 102 FTSENT *p; 103 104 for (p = dp->list; p; p = p->fts_link) { 105 if (IS_NOPRINT(p)) 106 continue; 107 printaname(p, dp->s_inode, dp->s_block); 108 putchar('\n'); 109 } 110 } 111 112 /* 113 * print name in current style 114 */ 115 int 116 printname(const char *name) 117 { 118 if (f_octal || f_octal_escape) 119 return prn_octal(name); 120 else if (f_nonprint) 121 return prn_printable(name); 122 else 123 return prn_normal(name); 124 } 125 126 void 127 printlong(const DISPLAY *dp) 128 { 129 struct stat *sp; 130 FTSENT *p; 131 NAMES *np; 132 char buf[20]; 133 #ifdef COLORLS 134 int color_printed = 0; 135 #endif 136 137 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) && 138 (f_longform || f_size)) { 139 printf("total %lu\n", howmany(dp->btotal, blocksize)); 140 } 141 142 for (p = dp->list; p; p = p->fts_link) { 143 if (IS_NOPRINT(p)) 144 continue; 145 sp = p->fts_statp; 146 if (f_inode) 147 printf("%*ju ", dp->s_inode, (uintmax_t)sp->st_ino); 148 if (f_size) 149 printf("%*jd ", 150 dp->s_block, howmany(sp->st_blocks, blocksize)); 151 strmode(sp->st_mode, buf); 152 np = p->fts_pointer; 153 printf("%s %*u %-*s %-*s ", buf, dp->s_nlink, 154 sp->st_nlink, dp->s_user, np->user, dp->s_group, 155 np->group); 156 if (f_fsmid) 157 printf("%s ", np->fsmid); 158 if (f_flags) 159 printf("%-*s ", dp->s_flags, np->flags); 160 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) 161 printf("%3d, 0x%08x ", 162 major(sp->st_rdev), (u_int)minor(sp->st_rdev)); 163 else if (dp->bcfile) 164 printf("%*s%*jd ", 165 8 - dp->s_size, "", dp->s_size, (intmax_t)sp->st_size); 166 else 167 printsize(dp->s_size, sp->st_size); 168 if (f_accesstime) 169 printtime(sp->st_atime); 170 else if (f_statustime) 171 printtime(sp->st_ctime); 172 else 173 printtime(sp->st_mtime); 174 #ifdef COLORLS 175 if (f_color) 176 color_printed = colortype(sp->st_mode); 177 #endif 178 printname(p->fts_name); 179 #ifdef COLORLS 180 if (f_color && color_printed) 181 endcolor(0); 182 #endif 183 if (f_type) 184 printtype(sp->st_mode); 185 if (S_ISLNK(sp->st_mode)) 186 printlink(p); 187 putchar('\n'); 188 } 189 } 190 191 void 192 printstream(const DISPLAY *dp) 193 { 194 FTSENT *p; 195 int chcnt; 196 197 for (p = dp->list, chcnt = 0; p; p = p->fts_link) { 198 if (p->fts_number == NO_PRINT) 199 continue; 200 /* XXX strlen does not take octal escapes into account. */ 201 if (strlen(p->fts_name) + chcnt + 202 (p->fts_link ? 2 : 0) >= (unsigned)termwidth) { 203 putchar('\n'); 204 chcnt = 0; 205 } 206 chcnt += printaname(p, dp->s_inode, dp->s_block); 207 if (p->fts_link) { 208 printf(", "); 209 chcnt += 2; 210 } 211 } 212 if (chcnt) 213 putchar('\n'); 214 } 215 216 void 217 printcol(const DISPLAY *dp) 218 { 219 static FTSENT **array; 220 static int lastentries = -1; 221 FTSENT *p; 222 FTSENT **narray; 223 int base; 224 int chcnt; 225 int cnt; 226 int col; 227 int colwidth; 228 int endcol; 229 int num; 230 int numcols; 231 int numrows; 232 int row; 233 int tabwidth; 234 235 if (f_notabs) 236 tabwidth = 1; 237 else 238 tabwidth = 8; 239 240 /* 241 * Have to do random access in the linked list -- build a table 242 * of pointers. 243 */ 244 if (dp->entries > lastentries) { 245 lastentries = dp->entries; 246 if ((narray = 247 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { 248 warn(NULL); 249 printscol(dp); 250 return; 251 } 252 lastentries = dp->entries; 253 array = narray; 254 } 255 for (p = dp->list, num = 0; p; p = p->fts_link) 256 if (p->fts_number != NO_PRINT) 257 array[num++] = p; 258 259 colwidth = dp->maxlen; 260 if (f_inode) 261 colwidth += dp->s_inode + 1; 262 if (f_size) 263 colwidth += dp->s_block + 1; 264 if (f_type) 265 colwidth += 1; 266 267 colwidth = (colwidth + tabwidth) & ~(tabwidth - 1); 268 if (termwidth < 2 * colwidth) { 269 printscol(dp); 270 return; 271 } 272 numcols = termwidth / colwidth; 273 numrows = num / numcols; 274 if (num % numcols) 275 ++numrows; 276 277 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) && 278 (f_longform || f_size)) { 279 printf("total %lu\n", howmany(dp->btotal, blocksize)); 280 } 281 282 /* counter if f_sortacross, else case-by-case */ 283 base = 0; 284 285 for (row = 0; row < numrows; ++row) { 286 endcol = colwidth; 287 if (!f_sortacross) 288 base = row; 289 for (col = 0, chcnt = 0; col < numcols; ++col) { 290 chcnt += printaname(array[base], dp->s_inode, 291 dp->s_block); 292 if (f_sortacross) 293 base++; 294 else 295 base += numrows; 296 if (base >= num) 297 break; 298 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1))) 299 <= endcol) { 300 if (f_sortacross && col + 1 >= numcols) 301 break; 302 putchar(f_notabs ? ' ' : '\t'); 303 chcnt = cnt; 304 } 305 endcol += colwidth; 306 } 307 putchar('\n'); 308 } 309 } 310 311 /* 312 * print [inode] [size] name 313 * return # of characters printed, no trailing characters. 314 */ 315 static int 316 printaname(const FTSENT *p, u_long inodefield, u_long sizefield) 317 { 318 struct stat *sp; 319 int chcnt; 320 #ifdef COLORLS 321 int color_printed = 0; 322 #endif 323 324 sp = p->fts_statp; 325 chcnt = 0; 326 if (f_inode) { 327 chcnt += printf("%*ju ", (int)inodefield, 328 (uintmax_t)sp->st_ino); 329 } 330 if (f_size) 331 chcnt += printf("%*jd ", 332 (int)sizefield, howmany(sp->st_blocks, blocksize)); 333 #ifdef COLORLS 334 if (f_color) 335 color_printed = colortype(sp->st_mode); 336 #endif 337 chcnt += printname(p->fts_name); 338 #ifdef COLORLS 339 if (f_color && color_printed) 340 endcolor(0); 341 #endif 342 if (f_type) 343 chcnt += printtype(sp->st_mode); 344 return (chcnt); 345 } 346 347 static void 348 printtime(time_t ftime) 349 { 350 char longstring[80]; 351 static time_t now; 352 const char *format; 353 static int d_first = -1; 354 355 if (d_first < 0) 356 d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 357 if (now == 0) 358 now = time(NULL); 359 360 #define SIXMONTHS ((365 / 2) * 86400) 361 if (f_sectime) 362 /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */ 363 format = d_first ? "%e %b %T %Y " : "%b %e %T %Y "; 364 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS) 365 /* mmm dd hh:mm || dd mmm hh:mm */ 366 format = d_first ? "%e %b %R " : "%b %e %R "; 367 else 368 /* mmm dd yyyy || dd mmm yyyy */ 369 format = d_first ? "%e %b %Y " : "%b %e %Y "; 370 strftime(longstring, sizeof(longstring), format, localtime(&ftime)); 371 fputs(longstring, stdout); 372 } 373 374 static int 375 printtype(u_int mode) 376 { 377 378 if (f_slash) { 379 if ((mode & S_IFMT) == S_IFDIR) { 380 putchar('/'); 381 return (1); 382 } 383 return (0); 384 } 385 386 switch (mode & S_IFMT) { 387 case S_IFDIR: 388 putchar('/'); 389 return (1); 390 case S_IFIFO: 391 putchar('|'); 392 return (1); 393 case S_IFLNK: 394 putchar('@'); 395 return (1); 396 case S_IFSOCK: 397 putchar('='); 398 return (1); 399 case S_IFWHT: 400 putchar('%'); 401 return (1); 402 default: 403 break; 404 } 405 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 406 putchar('*'); 407 return (1); 408 } 409 return (0); 410 } 411 412 #ifdef COLORLS 413 static int 414 putch(int c) 415 { 416 putchar(c); 417 return 0; 418 } 419 420 static int 421 writech(int c) 422 { 423 char tmp = (char)c; 424 425 write(STDOUT_FILENO, &tmp, 1); 426 return 0; 427 } 428 429 static void 430 printcolor(Colors c) 431 { 432 char *ansiseq; 433 434 if (colors[c].bold) 435 tputs(enter_bold, 1, putch); 436 437 if (colors[c].num[0] != -1) { 438 ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]); 439 if (ansiseq) 440 tputs(ansiseq, 1, putch); 441 } 442 if (colors[c].num[1] != -1) { 443 ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]); 444 if (ansiseq) 445 tputs(ansiseq, 1, putch); 446 } 447 } 448 449 static void 450 endcolor(int sig) 451 { 452 tputs(ansi_coloff, 1, sig ? writech : putch); 453 tputs(attrs_off, 1, sig ? writech : putch); 454 } 455 456 static int 457 colortype(mode_t mode) 458 { 459 switch (mode & S_IFMT) { 460 case S_IFDIR: 461 if (mode & S_IWOTH) 462 if (mode & S_ISTXT) 463 printcolor(C_WSDIR); 464 else 465 printcolor(C_WDIR); 466 else 467 printcolor(C_DIR); 468 return (1); 469 case S_IFLNK: 470 printcolor(C_LNK); 471 return (1); 472 case S_IFSOCK: 473 printcolor(C_SOCK); 474 return (1); 475 case S_IFIFO: 476 printcolor(C_FIFO); 477 return (1); 478 case S_IFBLK: 479 printcolor(C_BLK); 480 return (1); 481 case S_IFCHR: 482 printcolor(C_CHR); 483 return (1); 484 default:; 485 } 486 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 487 if (mode & S_ISUID) 488 printcolor(C_SUID); 489 else if (mode & S_ISGID) 490 printcolor(C_SGID); 491 else 492 printcolor(C_EXEC); 493 return (1); 494 } 495 return (0); 496 } 497 498 void 499 parsecolors(const char *cs) 500 { 501 int i; 502 int j; 503 size_t len; 504 char c[2]; 505 short legacy_warn = 0; 506 507 if (cs == NULL) 508 cs = ""; /* LSCOLORS not set */ 509 len = strlen(cs); 510 for (i = 0; i < C_NUMCOLORS; i++) { 511 colors[i].bold = 0; 512 513 if (len <= 2 * (size_t)i) { 514 c[0] = defcolors[2 * i]; 515 c[1] = defcolors[2 * i + 1]; 516 } else { 517 c[0] = cs[2 * i]; 518 c[1] = cs[2 * i + 1]; 519 } 520 for (j = 0; j < 2; j++) { 521 /* Legacy colours used 0-7 */ 522 if (c[j] >= '0' && c[j] <= '7') { 523 colors[i].num[j] = c[j] - '0'; 524 if (!legacy_warn) { 525 warnx("LSCOLORS should use " 526 "characters a-h instead of 0-9 (" 527 "see the manual page)\n"); 528 } 529 legacy_warn = 1; 530 } else if (c[j] >= 'a' && c[j] <= 'h') 531 colors[i].num[j] = c[j] - 'a'; 532 else if (c[j] >= 'A' && c[j] <= 'H') { 533 colors[i].num[j] = c[j] - 'A'; 534 colors[i].bold = 1; 535 } else if (tolower((unsigned char)c[j] == 'x')) 536 colors[i].num[j] = -1; 537 else { 538 warnx("invalid character '%c' in LSCOLORS" 539 " env var\n", c[j]); 540 colors[i].num[j] = -1; 541 } 542 } 543 } 544 } 545 546 void 547 colorquit(int sig) 548 { 549 endcolor(sig); 550 551 signal(sig, SIG_DFL); 552 kill(getpid(), sig); 553 } 554 555 #endif /* COLORLS */ 556 557 static void 558 printlink(const FTSENT *p) 559 { 560 int lnklen; 561 char name[MAXPATHLEN + 1]; 562 char path[MAXPATHLEN + 1]; 563 564 if (p->fts_level == FTS_ROOTLEVEL) 565 snprintf(name, sizeof(name), "%s", p->fts_name); 566 else 567 snprintf(name, sizeof(name), 568 "%s/%s", p->fts_parent->fts_accpath, p->fts_name); 569 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 570 fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 571 return; 572 } 573 path[lnklen] = '\0'; 574 printf(" -> "); 575 printname(path); 576 } 577 578 static void 579 printsize(size_t width, off_t bytes) 580 { 581 if (f_humanval) { 582 char buf[5]; 583 584 humanize_number(buf, sizeof(buf), (int64_t)bytes, "", 585 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 586 printf("%5s ", buf); 587 } else 588 printf("%*jd ", (int)width, (uintmax_t)bytes); 589 } 590