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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)print.c 8.4 (Berkeley) 4/17/94"; 40 #else 41 static const char rcsid[] = 42 "$FreeBSD$"; 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/stat.h> 48 49 #include <err.h> 50 #include <errno.h> 51 #include <fts.h> 52 #include <grp.h> 53 #include <pwd.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <time.h> 58 #include <unistd.h> 59 #ifdef COLORLS 60 #include <ctype.h> 61 #include <termcap.h> 62 #include <signal.h> 63 #endif 64 65 #include "ls.h" 66 #include "extern.h" 67 68 static int printaname __P((FTSENT *, u_long, u_long)); 69 static void printlink __P((FTSENT *)); 70 static void printtime __P((time_t)); 71 static int printtype __P((u_int)); 72 #ifdef COLORLS 73 static void endcolor __P((int)); 74 static int colortype __P((mode_t)); 75 #endif 76 77 #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) 78 79 #ifdef COLORLS 80 /* Most of these are taken from <sys/stat.h> */ 81 typedef enum Colors { 82 C_DIR, /* directory */ 83 C_LNK, /* symbolic link */ 84 C_SOCK, /* socket */ 85 C_FIFO, /* pipe */ 86 C_EXEC, /* executable */ 87 C_BLK, /* block special */ 88 C_CHR, /* character special */ 89 C_SUID, /* setuid executable */ 90 C_SGID, /* setgid executable */ 91 C_WSDIR, /* directory writeble to others, with sticky bit */ 92 C_WDIR, /* directory writeble to others, without sticky bit */ 93 C_NUMCOLORS /* just a place-holder */ 94 } Colors ; 95 96 char *defcolors = "4x5x2x3x1x464301060203"; 97 98 static int colors[C_NUMCOLORS][2]; 99 #endif 100 101 void 102 printscol(dp) 103 DISPLAY *dp; 104 { 105 FTSENT *p; 106 107 for (p = dp->list; p; p = p->fts_link) { 108 if (IS_NOPRINT(p)) 109 continue; 110 (void)printaname(p, dp->s_inode, dp->s_block); 111 (void)putchar('\n'); 112 } 113 } 114 115 void 116 printlong(dp) 117 DISPLAY *dp; 118 { 119 struct stat *sp; 120 FTSENT *p; 121 NAMES *np; 122 char buf[20]; 123 #ifdef COLORLS 124 int color_printed = 0; 125 #endif 126 127 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) 128 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 129 130 for (p = dp->list; p; p = p->fts_link) { 131 if (IS_NOPRINT(p)) 132 continue; 133 sp = p->fts_statp; 134 if (f_inode) 135 (void)printf("%*lu ", dp->s_inode, (u_long)sp->st_ino); 136 if (f_size) 137 (void)printf("%*qd ", 138 dp->s_block, howmany(sp->st_blocks, blocksize)); 139 (void)strmode(sp->st_mode, buf); 140 np = p->fts_pointer; 141 (void)printf("%s %*u %-*s %-*s ", buf, dp->s_nlink, 142 sp->st_nlink, dp->s_user, np->user, dp->s_group, 143 np->group); 144 if (f_flags) 145 (void)printf("%-*s ", dp->s_flags, np->flags); 146 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) 147 if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0) 148 (void)printf("%3d, 0x%08x ", 149 major(sp->st_rdev), 150 (u_int)minor(sp->st_rdev)); 151 else 152 (void)printf("%3d, %3d ", 153 major(sp->st_rdev), minor(sp->st_rdev)); 154 else if (dp->bcfile) 155 (void)printf("%*s%*qd ", 156 8 - dp->s_size, "", dp->s_size, sp->st_size); 157 else 158 (void)printf("%*qd ", dp->s_size, sp->st_size); 159 if (f_accesstime) 160 printtime(sp->st_atime); 161 else if (f_statustime) 162 printtime(sp->st_ctime); 163 else 164 printtime(sp->st_mtime); 165 #ifdef COLORLS 166 if (f_color) 167 color_printed = colortype(sp->st_mode); 168 #endif 169 if (f_octal || f_octal_escape) (void)prn_octal(p->fts_name); 170 else (void)printf("%s", p->fts_name); 171 #ifdef COLORLS 172 if (f_color && color_printed) 173 endcolor(0); 174 #endif 175 if (f_type) 176 (void)printtype(sp->st_mode); 177 if (S_ISLNK(sp->st_mode)) 178 printlink(p); 179 (void)putchar('\n'); 180 } 181 } 182 183 void 184 printcol(dp) 185 DISPLAY *dp; 186 { 187 extern int termwidth; 188 static FTSENT **array; 189 static int lastentries = -1; 190 FTSENT *p; 191 int base, chcnt, cnt, col, colwidth, num; 192 int endcol, numcols, numrows, row; 193 int tabwidth; 194 195 if (f_notabs) 196 tabwidth = 1; 197 else 198 tabwidth = 8; 199 200 /* 201 * Have to do random access in the linked list -- build a table 202 * of pointers. 203 */ 204 if (dp->entries > lastentries) { 205 lastentries = dp->entries; 206 if ((array = 207 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { 208 warn(NULL); 209 printscol(dp); 210 } 211 } 212 for (p = dp->list, num = 0; p; p = p->fts_link) 213 if (p->fts_number != NO_PRINT) 214 array[num++] = p; 215 216 colwidth = dp->maxlen; 217 if (f_inode) 218 colwidth += dp->s_inode + 1; 219 if (f_size) 220 colwidth += dp->s_block + 1; 221 if (f_type) 222 colwidth += 1; 223 224 colwidth = (colwidth + tabwidth) & ~(tabwidth - 1); 225 if (termwidth < 2 * colwidth) { 226 printscol(dp); 227 return; 228 } 229 230 numcols = termwidth / colwidth; 231 numrows = num / numcols; 232 if (num % numcols) 233 ++numrows; 234 235 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) 236 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 237 for (row = 0; row < numrows; ++row) { 238 endcol = colwidth; 239 for (base = row, chcnt = col = 0; col < numcols; ++col) { 240 chcnt += printaname(array[base], dp->s_inode, 241 dp->s_block); 242 if ((base += numrows) >= num) 243 break; 244 #ifdef COLORLS 245 /* 246 * We can't put tabs and color sequences together: 247 * column number will be incremented incorrectly 248 * for "stty oxtabs" mode. 249 */ 250 if (f_color && !f_notabs) 251 while ((cnt = (chcnt + 1)) <= endcol) { 252 (void)putchar(' '); 253 chcnt = cnt; 254 } 255 else 256 #endif 257 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1))) 258 <= endcol){ 259 (void)putchar(f_notabs ? ' ' : '\t'); 260 chcnt = cnt; 261 } 262 endcol += colwidth; 263 } 264 (void)putchar('\n'); 265 } 266 } 267 268 /* 269 * print [inode] [size] name 270 * return # of characters printed, no trailing characters. 271 */ 272 static int 273 printaname(p, inodefield, sizefield) 274 FTSENT *p; 275 u_long sizefield, inodefield; 276 { 277 struct stat *sp; 278 int chcnt; 279 #ifdef COLORLS 280 int color_printed = 0; 281 #endif 282 283 sp = p->fts_statp; 284 chcnt = 0; 285 if (f_inode) 286 chcnt += printf("%*lu ", (int)inodefield, (u_long)sp->st_ino); 287 if (f_size) 288 chcnt += printf("%*qd ", 289 (int)sizefield, howmany(sp->st_blocks, blocksize)); 290 #ifdef COLORLS 291 if (f_color) 292 color_printed = colortype(sp->st_mode); 293 #endif 294 chcnt += (f_octal || f_octal_escape) ? prn_octal(p->fts_name) 295 : printf("%s", p->fts_name); 296 #ifdef COLORLS 297 if (f_color && color_printed) 298 endcolor(0); 299 #endif 300 if (f_type) 301 chcnt += printtype(sp->st_mode); 302 return (chcnt); 303 } 304 305 static void 306 printtime(ftime) 307 time_t ftime; 308 { 309 int i; 310 char longstring[80]; 311 static time_t now; 312 313 if (now == 0) 314 now = time(NULL); 315 316 strftime(longstring, sizeof(longstring), "%c", localtime(&ftime)); 317 for (i = 4; i < 11; ++i) 318 (void)putchar(longstring[i]); 319 320 #define SIXMONTHS ((365 / 2) * 86400) 321 if (f_sectime) 322 for (i = 11; i < 24; i++) 323 (void)putchar(longstring[i]); 324 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS) 325 for (i = 11; i < 16; ++i) 326 (void)putchar(longstring[i]); 327 else { 328 (void)putchar(' '); 329 for (i = 20; i < 24; ++i) 330 (void)putchar(longstring[i]); 331 } 332 (void)putchar(' '); 333 } 334 335 static int 336 printtype(mode) 337 u_int mode; 338 { 339 switch (mode & S_IFMT) { 340 case S_IFDIR: 341 (void)putchar('/'); 342 return (1); 343 case S_IFIFO: 344 (void)putchar('|'); 345 return (1); 346 case S_IFLNK: 347 (void)putchar('@'); 348 return (1); 349 case S_IFSOCK: 350 (void)putchar('='); 351 return (1); 352 case S_IFWHT: 353 (void)putchar('%'); 354 return (1); 355 } 356 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 357 (void)putchar('*'); 358 return (1); 359 } 360 return (0); 361 } 362 363 #ifdef COLORLS 364 static int 365 putch(c) 366 int c; 367 { 368 (void) putchar(c); 369 return 0; 370 } 371 372 static int 373 writech(c) 374 int c; 375 { 376 char tmp = c; 377 378 (void) write(STDOUT_FILENO, &tmp, 1); 379 return 0; 380 } 381 382 static void 383 printcolor(c) 384 Colors c; 385 { 386 char *ansiseq; 387 388 if (colors[c][0] != -1) { 389 ansiseq = tgoto(ansi_fgcol, 0, colors[c][0]); 390 if (ansiseq) 391 tputs(ansiseq, 1, putch); 392 } 393 394 if (colors[c][1] != -1) { 395 ansiseq = tgoto(ansi_bgcol, 0, colors[c][1]); 396 if (ansiseq) 397 tputs(ansiseq, 1, putch); 398 } 399 } 400 401 static void 402 endcolor(sig) 403 int sig; 404 { 405 tputs(ansi_coloff, 1, sig ? writech : putch); 406 } 407 408 static int 409 colortype(mode) 410 mode_t mode; 411 { 412 switch(mode & S_IFMT) { 413 case S_IFDIR: 414 if (mode & S_IWOTH) 415 if (mode & S_ISTXT) 416 printcolor(C_WSDIR); 417 else 418 printcolor(C_WDIR); 419 else 420 printcolor(C_DIR); 421 return(1); 422 case S_IFLNK: 423 printcolor(C_LNK); 424 return(1); 425 case S_IFSOCK: 426 printcolor(C_SOCK); 427 return(1); 428 case S_IFIFO: 429 printcolor(C_FIFO); 430 return(1); 431 case S_IFBLK: 432 printcolor(C_BLK); 433 return(1); 434 case S_IFCHR: 435 printcolor(C_CHR); 436 return(1); 437 } 438 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 439 if (mode & S_ISUID) 440 printcolor(C_SUID); 441 else if (mode & S_ISGID) 442 printcolor(C_SGID); 443 else 444 printcolor(C_EXEC); 445 return(1); 446 } 447 return(0); 448 } 449 450 void 451 parsecolors(cs) 452 char *cs; 453 { 454 int i, j, len; 455 char c[2]; 456 457 if (cs == NULL) cs = ""; /* LSCOLORS not set */ 458 len = strlen(cs); 459 for (i = 0 ; i < C_NUMCOLORS ; i++) { 460 if (len <= 2*i) { 461 c[0] = defcolors[2*i]; 462 c[1] = defcolors[2*i+1]; 463 } 464 else { 465 c[0] = cs[2*i]; 466 c[1] = cs[2*i+1]; 467 } 468 for (j = 0 ; j < 2 ; j++) { 469 if ((c[j] < '0' || c[j] > '7') && 470 tolower((unsigned char)c[j]) != 'x') { 471 fprintf(stderr, 472 "error: invalid character '%c' in LSCOLORS env var\n", 473 c[j]); 474 c[j] = defcolors[2*i+j]; 475 } 476 if (tolower((unsigned char)c[j]) == 'x') 477 colors[i][j] = -1; 478 else 479 colors[i][j] = c[j]-'0'; 480 } 481 } 482 } 483 484 void 485 colorquit(sig) 486 int sig; 487 { 488 endcolor(sig); 489 490 (void) signal(sig, SIG_DFL); 491 (void) kill(getpid(), sig); 492 } 493 #endif /*COLORLS*/ 494 495 static void 496 printlink(p) 497 FTSENT *p; 498 { 499 int lnklen; 500 char name[MAXPATHLEN + 1], path[MAXPATHLEN + 1]; 501 502 if (p->fts_level == FTS_ROOTLEVEL) 503 (void)snprintf(name, sizeof(name), "%s", p->fts_name); 504 else 505 (void)snprintf(name, sizeof(name), 506 "%s/%s", p->fts_parent->fts_accpath, p->fts_name); 507 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 508 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 509 return; 510 } 511 path[lnklen] = '\0'; 512 if (f_octal || f_octal_escape) { 513 (void)printf(" -> "); 514 (void)prn_octal(path); 515 } 516 else (void)printf(" -> %s", path); 517 } 518