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 * some terminals get confused if we mix tabs 247 * with color sequences 248 */ 249 if (f_color) 250 while ((cnt = (chcnt + 1)) <= endcol) { 251 (void)putchar(' '); 252 chcnt = cnt; 253 } 254 else 255 #endif 256 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1))) 257 <= endcol){ 258 (void)putchar(f_notabs ? ' ' : '\t'); 259 chcnt = cnt; 260 } 261 endcol += colwidth; 262 } 263 (void)putchar('\n'); 264 } 265 } 266 267 /* 268 * print [inode] [size] name 269 * return # of characters printed, no trailing characters. 270 */ 271 static int 272 printaname(p, inodefield, sizefield) 273 FTSENT *p; 274 u_long sizefield, inodefield; 275 { 276 struct stat *sp; 277 int chcnt; 278 #ifdef COLORLS 279 int color_printed = 0; 280 #endif 281 282 sp = p->fts_statp; 283 chcnt = 0; 284 if (f_inode) 285 chcnt += printf("%*lu ", (int)inodefield, (u_long)sp->st_ino); 286 if (f_size) 287 chcnt += printf("%*qd ", 288 (int)sizefield, howmany(sp->st_blocks, blocksize)); 289 #ifdef COLORLS 290 if (f_color) 291 color_printed = colortype(sp->st_mode); 292 #endif 293 chcnt += (f_octal || f_octal_escape) ? prn_octal(p->fts_name) 294 : printf("%s", p->fts_name); 295 #ifdef COLORLS 296 if (f_color && color_printed) 297 endcolor(0); 298 #endif 299 if (f_type) 300 chcnt += printtype(sp->st_mode); 301 return (chcnt); 302 } 303 304 static void 305 printtime(ftime) 306 time_t ftime; 307 { 308 int i; 309 char longstring[80]; 310 static time_t now; 311 312 if (now == 0) 313 now = time(NULL); 314 315 strftime(longstring, sizeof(longstring), "%c", localtime(&ftime)); 316 for (i = 4; i < 11; ++i) 317 (void)putchar(longstring[i]); 318 319 #define SIXMONTHS ((365 / 2) * 86400) 320 if (f_sectime) 321 for (i = 11; i < 24; i++) 322 (void)putchar(longstring[i]); 323 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS) 324 for (i = 11; i < 16; ++i) 325 (void)putchar(longstring[i]); 326 else { 327 (void)putchar(' '); 328 for (i = 20; i < 24; ++i) 329 (void)putchar(longstring[i]); 330 } 331 (void)putchar(' '); 332 } 333 334 static int 335 printtype(mode) 336 u_int mode; 337 { 338 switch (mode & S_IFMT) { 339 case S_IFDIR: 340 (void)putchar('/'); 341 return (1); 342 case S_IFIFO: 343 (void)putchar('|'); 344 return (1); 345 case S_IFLNK: 346 (void)putchar('@'); 347 return (1); 348 case S_IFSOCK: 349 (void)putchar('='); 350 return (1); 351 case S_IFWHT: 352 (void)putchar('%'); 353 return (1); 354 } 355 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 356 (void)putchar('*'); 357 return (1); 358 } 359 return (0); 360 } 361 362 #ifdef COLORLS 363 int putch(c) 364 int c; 365 { 366 (void) putchar(c); 367 return 0; 368 } 369 370 int writech(c) 371 int c; 372 { 373 char tmp = c; 374 375 (void) write(STDOUT_FILENO, &tmp, 1); 376 return 0; 377 } 378 379 void 380 printcolor(c) 381 Colors c; 382 { 383 char *ansiseq; 384 385 if (colors[c][0] != -1) { 386 ansiseq = tgoto(ansi_fgcol, 0, colors[c][0]); 387 if (ansiseq) 388 tputs(ansiseq, 1, putch); 389 } 390 391 if (colors[c][1] != -1) { 392 ansiseq = tgoto(ansi_bgcol, 0, colors[c][1]); 393 if (ansiseq) 394 tputs(ansiseq, 1, putch); 395 } 396 } 397 398 static void 399 endcolor(sig) 400 int sig; 401 { 402 tputs(ansi_coloff, 1, sig ? writech : putch); 403 } 404 405 static int 406 colortype(mode) 407 mode_t mode; 408 { 409 switch(mode & S_IFMT) { 410 case S_IFDIR: 411 if (mode & S_IWOTH) 412 if (mode & S_ISTXT) 413 printcolor(C_WSDIR); 414 else 415 printcolor(C_WDIR); 416 else 417 printcolor(C_DIR); 418 return(1); 419 case S_IFLNK: 420 printcolor(C_LNK); 421 return(1); 422 case S_IFSOCK: 423 printcolor(C_SOCK); 424 return(1); 425 case S_IFIFO: 426 printcolor(C_FIFO); 427 return(1); 428 case S_IFBLK: 429 printcolor(C_BLK); 430 return(1); 431 case S_IFCHR: 432 printcolor(C_CHR); 433 return(1); 434 } 435 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 436 if (mode & S_ISUID) 437 printcolor(C_SUID); 438 else if (mode & S_ISGID) 439 printcolor(C_SGID); 440 else 441 printcolor(C_EXEC); 442 return(1); 443 } 444 return(0); 445 } 446 447 void 448 parsecolors(cs) 449 char *cs; 450 { 451 int i, j, len; 452 char c[2]; 453 454 if (cs == NULL) cs = ""; /* LSCOLORS not set */ 455 len = strlen(cs); 456 for (i = 0 ; i < C_NUMCOLORS ; i++) { 457 if (len <= 2*i) { 458 c[0] = defcolors[2*i]; 459 c[1] = defcolors[2*i+1]; 460 } 461 else { 462 c[0] = cs[2*i]; 463 c[1] = cs[2*i+1]; 464 } 465 for (j = 0 ; j < 2 ; j++) { 466 if ((c[j] < '0' || c[j] > '7') && 467 tolower((unsigned char)c[j]) != 'x') { 468 fprintf(stderr, 469 "error: invalid character '%c' in LSCOLORS env var\n", 470 c[j]); 471 c[j] = defcolors[2*i+j]; 472 } 473 if (tolower((unsigned char)c[j]) == 'x') 474 colors[i][j] = -1; 475 else 476 colors[i][j] = c[j]-'0'; 477 } 478 } 479 } 480 481 void colorquit(sig) 482 int sig; 483 { 484 endcolor(sig); 485 486 (void) signal(sig, SIG_DFL); 487 (void) kill(getpid(), sig); 488 } 489 #endif /*COLORLS*/ 490 491 static void 492 printlink(p) 493 FTSENT *p; 494 { 495 int lnklen; 496 char name[MAXPATHLEN + 1], path[MAXPATHLEN + 1]; 497 498 if (p->fts_level == FTS_ROOTLEVEL) 499 (void)snprintf(name, sizeof(name), "%s", p->fts_name); 500 else 501 (void)snprintf(name, sizeof(name), 502 "%s/%s", p->fts_parent->fts_accpath, p->fts_name); 503 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 504 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 505 return; 506 } 507 path[lnklen] = '\0'; 508 if (f_octal || f_octal_escape) { 509 (void)printf(" -> "); 510 (void)prn_octal(path); 511 } 512 else (void)printf(" -> %s", path); 513 } 514