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 1.17 2005/11/06 11:44:02 swildner 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("%*lu ", dp->s_inode, (u_long)sp->st_ino); 148 if (f_size) 149 printf("%*lld ", 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 if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0) 162 printf("%3d, 0x%08x ", 163 major(sp->st_rdev), 164 (u_int)minor(sp->st_rdev)); 165 else 166 printf("%3d, %3d ", 167 major(sp->st_rdev), minor(sp->st_rdev)); 168 else if (dp->bcfile) 169 printf("%*s%*lld ", 170 8 - dp->s_size, "", dp->s_size, sp->st_size); 171 else 172 printsize(dp->s_size, sp->st_size); 173 if (f_accesstime) 174 printtime(sp->st_atime); 175 else if (f_statustime) 176 printtime(sp->st_ctime); 177 else 178 printtime(sp->st_mtime); 179 #ifdef COLORLS 180 if (f_color) 181 color_printed = colortype(sp->st_mode); 182 #endif 183 printname(p->fts_name); 184 #ifdef COLORLS 185 if (f_color && color_printed) 186 endcolor(0); 187 #endif 188 if (f_type) 189 printtype(sp->st_mode); 190 if (S_ISLNK(sp->st_mode)) 191 printlink(p); 192 putchar('\n'); 193 } 194 } 195 196 void 197 printstream(const DISPLAY *dp) 198 { 199 FTSENT *p; 200 int chcnt; 201 202 for (p = dp->list, chcnt = 0; p; p = p->fts_link) { 203 if (p->fts_number == NO_PRINT) 204 continue; 205 /* XXX strlen does not take octal escapes into account. */ 206 if (strlen(p->fts_name) + chcnt + 207 (p->fts_link ? 2 : 0) >= (unsigned)termwidth) { 208 putchar('\n'); 209 chcnt = 0; 210 } 211 chcnt += printaname(p, dp->s_inode, dp->s_block); 212 if (p->fts_link) { 213 printf(", "); 214 chcnt += 2; 215 } 216 } 217 if (chcnt) 218 putchar('\n'); 219 } 220 221 void 222 printcol(const DISPLAY *dp) 223 { 224 static FTSENT **array; 225 static int lastentries = -1; 226 FTSENT *p; 227 FTSENT **narray; 228 int base; 229 int chcnt; 230 int cnt; 231 int col; 232 int colwidth; 233 int endcol; 234 int num; 235 int numcols; 236 int numrows; 237 int row; 238 int tabwidth; 239 240 if (f_notabs) 241 tabwidth = 1; 242 else 243 tabwidth = 8; 244 245 /* 246 * Have to do random access in the linked list -- build a table 247 * of pointers. 248 */ 249 if (dp->entries > lastentries) { 250 lastentries = dp->entries; 251 if ((narray = 252 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { 253 warn(NULL); 254 printscol(dp); 255 return; 256 } 257 lastentries = dp->entries; 258 array = narray; 259 } 260 for (p = dp->list, num = 0; p; p = p->fts_link) 261 if (p->fts_number != NO_PRINT) 262 array[num++] = p; 263 264 colwidth = dp->maxlen; 265 if (f_inode) 266 colwidth += dp->s_inode + 1; 267 if (f_size) 268 colwidth += dp->s_block + 1; 269 if (f_type) 270 colwidth += 1; 271 272 colwidth = (colwidth + tabwidth) & ~(tabwidth - 1); 273 if (termwidth < 2 * colwidth) { 274 printscol(dp); 275 return; 276 } 277 numcols = termwidth / colwidth; 278 numrows = num / numcols; 279 if (num % numcols) 280 ++numrows; 281 282 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) && 283 (f_longform || f_size)) { 284 printf("total %lu\n", howmany(dp->btotal, blocksize)); 285 } 286 287 /* counter if f_sortacross, else case-by-case */ 288 base = 0; 289 290 for (row = 0; row < numrows; ++row) { 291 endcol = colwidth; 292 if (!f_sortacross) 293 base = row; 294 for (col = 0, chcnt = 0; col < numcols; ++col) { 295 chcnt += printaname(array[base], dp->s_inode, 296 dp->s_block); 297 if (f_sortacross) 298 base++; 299 else 300 base += numrows; 301 if (base >= num) 302 break; 303 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1))) 304 <= endcol) { 305 if (f_sortacross && col + 1 >= numcols) 306 break; 307 putchar(f_notabs ? ' ' : '\t'); 308 chcnt = cnt; 309 } 310 endcol += colwidth; 311 } 312 putchar('\n'); 313 } 314 } 315 316 /* 317 * print [inode] [size] name 318 * return # of characters printed, no trailing characters. 319 */ 320 static int 321 printaname(const FTSENT *p, u_long inodefield, u_long sizefield) 322 { 323 struct stat *sp; 324 int chcnt; 325 #ifdef COLORLS 326 int color_printed = 0; 327 #endif 328 329 sp = p->fts_statp; 330 chcnt = 0; 331 if (f_inode) 332 chcnt += printf("%*lu ", (int)inodefield, (u_long)sp->st_ino); 333 if (f_size) 334 chcnt += printf("%*lld ", 335 (int)sizefield, howmany(sp->st_blocks, blocksize)); 336 #ifdef COLORLS 337 if (f_color) 338 color_printed = colortype(sp->st_mode); 339 #endif 340 chcnt += printname(p->fts_name); 341 #ifdef COLORLS 342 if (f_color && color_printed) 343 endcolor(0); 344 #endif 345 if (f_type) 346 chcnt += printtype(sp->st_mode); 347 return (chcnt); 348 } 349 350 static void 351 printtime(time_t ftime) 352 { 353 char longstring[80]; 354 static time_t now; 355 const char *format; 356 static int d_first = -1; 357 358 if (d_first < 0) 359 d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 360 if (now == 0) 361 now = time(NULL); 362 363 #define SIXMONTHS ((365 / 2) * 86400) 364 if (f_sectime) 365 /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */ 366 format = d_first ? "%e %b %T %Y " : "%b %e %T %Y "; 367 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS) 368 /* mmm dd hh:mm || dd mmm hh:mm */ 369 format = d_first ? "%e %b %R " : "%b %e %R "; 370 else 371 /* mmm dd yyyy || dd mmm yyyy */ 372 format = d_first ? "%e %b %Y " : "%b %e %Y "; 373 strftime(longstring, sizeof(longstring), format, localtime(&ftime)); 374 fputs(longstring, stdout); 375 } 376 377 static int 378 printtype(u_int mode) 379 { 380 381 if (f_slash) { 382 if ((mode & S_IFMT) == S_IFDIR) { 383 putchar('/'); 384 return (1); 385 } 386 return (0); 387 } 388 389 switch (mode & S_IFMT) { 390 case S_IFDIR: 391 putchar('/'); 392 return (1); 393 case S_IFIFO: 394 putchar('|'); 395 return (1); 396 case S_IFLNK: 397 putchar('@'); 398 return (1); 399 case S_IFSOCK: 400 putchar('='); 401 return (1); 402 case S_IFWHT: 403 putchar('%'); 404 return (1); 405 default: 406 break; 407 } 408 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 409 putchar('*'); 410 return (1); 411 } 412 return (0); 413 } 414 415 #ifdef COLORLS 416 static int 417 putch(int c) 418 { 419 putchar(c); 420 return 0; 421 } 422 423 static int 424 writech(int c) 425 { 426 char tmp = (char)c; 427 428 write(STDOUT_FILENO, &tmp, 1); 429 return 0; 430 } 431 432 static void 433 printcolor(Colors c) 434 { 435 char *ansiseq; 436 437 if (colors[c].bold) 438 tputs(enter_bold, 1, putch); 439 440 if (colors[c].num[0] != -1) { 441 ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]); 442 if (ansiseq) 443 tputs(ansiseq, 1, putch); 444 } 445 if (colors[c].num[1] != -1) { 446 ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]); 447 if (ansiseq) 448 tputs(ansiseq, 1, putch); 449 } 450 } 451 452 static void 453 endcolor(int sig) 454 { 455 tputs(ansi_coloff, 1, sig ? writech : putch); 456 tputs(attrs_off, 1, sig ? writech : putch); 457 } 458 459 static int 460 colortype(mode_t mode) 461 { 462 switch (mode & S_IFMT) { 463 case S_IFDIR: 464 if (mode & S_IWOTH) 465 if (mode & S_ISTXT) 466 printcolor(C_WSDIR); 467 else 468 printcolor(C_WDIR); 469 else 470 printcolor(C_DIR); 471 return (1); 472 case S_IFLNK: 473 printcolor(C_LNK); 474 return (1); 475 case S_IFSOCK: 476 printcolor(C_SOCK); 477 return (1); 478 case S_IFIFO: 479 printcolor(C_FIFO); 480 return (1); 481 case S_IFBLK: 482 printcolor(C_BLK); 483 return (1); 484 case S_IFCHR: 485 printcolor(C_CHR); 486 return (1); 487 default:; 488 } 489 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 490 if (mode & S_ISUID) 491 printcolor(C_SUID); 492 else if (mode & S_ISGID) 493 printcolor(C_SGID); 494 else 495 printcolor(C_EXEC); 496 return (1); 497 } 498 return (0); 499 } 500 501 void 502 parsecolors(const char *cs) 503 { 504 int i; 505 int j; 506 size_t len; 507 char c[2]; 508 short legacy_warn = 0; 509 510 if (cs == NULL) 511 cs = ""; /* LSCOLORS not set */ 512 len = strlen(cs); 513 for (i = 0; i < C_NUMCOLORS; i++) { 514 colors[i].bold = 0; 515 516 if (len <= 2 * (size_t)i) { 517 c[0] = defcolors[2 * i]; 518 c[1] = defcolors[2 * i + 1]; 519 } else { 520 c[0] = cs[2 * i]; 521 c[1] = cs[2 * i + 1]; 522 } 523 for (j = 0; j < 2; j++) { 524 /* Legacy colours used 0-7 */ 525 if (c[j] >= '0' && c[j] <= '7') { 526 colors[i].num[j] = c[j] - '0'; 527 if (!legacy_warn) { 528 warnx("LSCOLORS should use " 529 "characters a-h instead of 0-9 (" 530 "see the manual page)\n"); 531 } 532 legacy_warn = 1; 533 } else if (c[j] >= 'a' && c[j] <= 'h') 534 colors[i].num[j] = c[j] - 'a'; 535 else if (c[j] >= 'A' && c[j] <= 'H') { 536 colors[i].num[j] = c[j] - 'A'; 537 colors[i].bold = 1; 538 } else if (tolower((unsigned char)c[j] == 'x')) 539 colors[i].num[j] = -1; 540 else { 541 warnx("invalid character '%c' in LSCOLORS" 542 " env var\n", c[j]); 543 colors[i].num[j] = -1; 544 } 545 } 546 } 547 } 548 549 void 550 colorquit(int sig) 551 { 552 endcolor(sig); 553 554 signal(sig, SIG_DFL); 555 kill(getpid(), sig); 556 } 557 558 #endif /* COLORLS */ 559 560 static void 561 printlink(const FTSENT *p) 562 { 563 int lnklen; 564 char name[MAXPATHLEN + 1]; 565 char path[MAXPATHLEN + 1]; 566 567 if (p->fts_level == FTS_ROOTLEVEL) 568 snprintf(name, sizeof(name), "%s", p->fts_name); 569 else 570 snprintf(name, sizeof(name), 571 "%s/%s", p->fts_parent->fts_accpath, p->fts_name); 572 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 573 fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 574 return; 575 } 576 path[lnklen] = '\0'; 577 printf(" -> "); 578 printname(path); 579 } 580 581 static void 582 printsize(size_t width, off_t bytes) 583 { 584 if (f_humanval) { 585 char buf[5]; 586 587 humanize_number(buf, sizeof(buf), (int64_t)bytes, "", 588 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 589 printf("%5s ", buf); 590 } else 591 printf("%*lld ", width, bytes); 592 } 593