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 <langinfo.h> 54 #include <pwd.h> 55 #include <stdio.h> 56 #include <stdlib.h> 57 #include <string.h> 58 #include <time.h> 59 #include <unistd.h> 60 #ifdef COLORLS 61 #include <ctype.h> 62 #include <termcap.h> 63 #include <signal.h> 64 #endif 65 66 #include "ls.h" 67 #include "extern.h" 68 69 static int printaname __P((FTSENT *, u_long, u_long)); 70 static void printlink __P((FTSENT *)); 71 static void printtime __P((time_t)); 72 static int printtype __P((u_int)); 73 #ifdef COLORLS 74 static void endcolor __P((int)); 75 static int colortype __P((mode_t)); 76 #endif 77 78 #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) 79 80 #ifdef COLORLS 81 /* Most of these are taken from <sys/stat.h> */ 82 typedef enum Colors { 83 C_DIR, /* directory */ 84 C_LNK, /* symbolic link */ 85 C_SOCK, /* socket */ 86 C_FIFO, /* pipe */ 87 C_EXEC, /* executable */ 88 C_BLK, /* block special */ 89 C_CHR, /* character special */ 90 C_SUID, /* setuid executable */ 91 C_SGID, /* setgid executable */ 92 C_WSDIR, /* directory writeble to others, with sticky bit */ 93 C_WDIR, /* directory writeble to others, without sticky bit */ 94 C_NUMCOLORS /* just a place-holder */ 95 } Colors ; 96 97 char *defcolors = "4x5x2x3x1x464301060203"; 98 99 static int colors[C_NUMCOLORS][2]; 100 #endif 101 102 void 103 printscol(dp) 104 DISPLAY *dp; 105 { 106 FTSENT *p; 107 108 for (p = dp->list; p; p = p->fts_link) { 109 if (IS_NOPRINT(p)) 110 continue; 111 (void)printaname(p, dp->s_inode, dp->s_block); 112 (void)putchar('\n'); 113 } 114 } 115 116 /* 117 * print name in current style 118 */ 119 static int 120 printname(name) 121 const char *name; 122 { 123 if (f_octal || f_octal_escape) 124 return prn_octal(name); 125 else if (f_nonprint) 126 return prn_printable(name); 127 else 128 return printf("%s", name); 129 } 130 131 void 132 printlong(dp) 133 DISPLAY *dp; 134 { 135 struct stat *sp; 136 FTSENT *p; 137 NAMES *np; 138 char buf[20]; 139 #ifdef COLORLS 140 int color_printed = 0; 141 #endif 142 143 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) 144 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 145 146 for (p = dp->list; p; p = p->fts_link) { 147 if (IS_NOPRINT(p)) 148 continue; 149 sp = p->fts_statp; 150 if (f_inode) 151 (void)printf("%*lu ", dp->s_inode, (u_long)sp->st_ino); 152 if (f_size) 153 (void)printf("%*qd ", 154 dp->s_block, howmany(sp->st_blocks, blocksize)); 155 (void)strmode(sp->st_mode, buf); 156 np = p->fts_pointer; 157 (void)printf("%s %*u %-*s %-*s ", buf, dp->s_nlink, 158 sp->st_nlink, dp->s_user, np->user, dp->s_group, 159 np->group); 160 if (f_flags) 161 (void)printf("%-*s ", dp->s_flags, np->flags); 162 if (f_lomac) 163 (void)printf("%-*s ", dp->s_lattr, np->lattr); 164 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) 165 if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0) 166 (void)printf("%3d, 0x%08x ", 167 major(sp->st_rdev), 168 (u_int)minor(sp->st_rdev)); 169 else 170 (void)printf("%3d, %3d ", 171 major(sp->st_rdev), minor(sp->st_rdev)); 172 else if (dp->bcfile) 173 (void)printf("%*s%*qd ", 174 8 - dp->s_size, "", dp->s_size, sp->st_size); 175 else 176 (void)printf("%*qd ", dp->s_size, sp->st_size); 177 if (f_accesstime) 178 printtime(sp->st_atime); 179 else if (f_statustime) 180 printtime(sp->st_ctime); 181 else 182 printtime(sp->st_mtime); 183 #ifdef COLORLS 184 if (f_color) 185 color_printed = colortype(sp->st_mode); 186 #endif 187 (void)printname(p->fts_name); 188 #ifdef COLORLS 189 if (f_color && color_printed) 190 endcolor(0); 191 #endif 192 if (f_type) 193 (void)printtype(sp->st_mode); 194 if (S_ISLNK(sp->st_mode)) 195 printlink(p); 196 (void)putchar('\n'); 197 } 198 } 199 200 void 201 printcol(dp) 202 DISPLAY *dp; 203 { 204 extern int termwidth; 205 static FTSENT **array; 206 static int lastentries = -1; 207 FTSENT *p; 208 int base, chcnt, cnt, col, colwidth, num; 209 int endcol, numcols, numrows, row; 210 int tabwidth; 211 212 if (f_notabs) 213 tabwidth = 1; 214 else 215 tabwidth = 8; 216 217 /* 218 * Have to do random access in the linked list -- build a table 219 * of pointers. 220 */ 221 if (dp->entries > lastentries) { 222 lastentries = dp->entries; 223 if ((array = 224 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { 225 warn(NULL); 226 printscol(dp); 227 } 228 } 229 for (p = dp->list, num = 0; p; p = p->fts_link) 230 if (p->fts_number != NO_PRINT) 231 array[num++] = p; 232 233 colwidth = dp->maxlen; 234 if (f_inode) 235 colwidth += dp->s_inode + 1; 236 if (f_size) 237 colwidth += dp->s_block + 1; 238 if (f_type) 239 colwidth += 1; 240 241 colwidth = (colwidth + tabwidth) & ~(tabwidth - 1); 242 if (termwidth < 2 * colwidth) { 243 printscol(dp); 244 return; 245 } 246 247 numcols = termwidth / colwidth; 248 numrows = num / numcols; 249 if (num % numcols) 250 ++numrows; 251 252 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) 253 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 254 for (row = 0; row < numrows; ++row) { 255 endcol = colwidth; 256 for (base = row, chcnt = col = 0; col < numcols; ++col) { 257 chcnt += printaname(array[base], dp->s_inode, 258 dp->s_block); 259 if ((base += numrows) >= num) 260 break; 261 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1))) 262 <= endcol){ 263 (void)putchar(f_notabs ? ' ' : '\t'); 264 chcnt = cnt; 265 } 266 endcol += colwidth; 267 } 268 (void)putchar('\n'); 269 } 270 } 271 272 /* 273 * print [inode] [size] name 274 * return # of characters printed, no trailing characters. 275 */ 276 static int 277 printaname(p, inodefield, sizefield) 278 FTSENT *p; 279 u_long sizefield, inodefield; 280 { 281 struct stat *sp; 282 int chcnt; 283 #ifdef COLORLS 284 int color_printed = 0; 285 #endif 286 287 sp = p->fts_statp; 288 chcnt = 0; 289 if (f_inode) 290 chcnt += printf("%*lu ", (int)inodefield, (u_long)sp->st_ino); 291 if (f_size) 292 chcnt += printf("%*qd ", 293 (int)sizefield, howmany(sp->st_blocks, blocksize)); 294 #ifdef COLORLS 295 if (f_color) 296 color_printed = colortype(sp->st_mode); 297 #endif 298 chcnt += printname(p->fts_name); 299 #ifdef COLORLS 300 if (f_color && color_printed) 301 endcolor(0); 302 #endif 303 if (f_type) 304 chcnt += printtype(sp->st_mode); 305 return (chcnt); 306 } 307 308 static void 309 printtime(ftime) 310 time_t ftime; 311 { 312 char longstring[80]; 313 static time_t now; 314 const char *format; 315 static int d_first = -1; 316 317 if (d_first < 0) 318 d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 319 if (now == 0) 320 now = time(NULL); 321 322 #define SIXMONTHS ((365 / 2) * 86400) 323 if (f_sectime) 324 /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */ 325 format = d_first ? "%e %b %T %Y " : "%b %e %T %Y "; 326 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS) 327 /* mmm dd hh:mm || dd mmm hh:mm */ 328 format = d_first ? "%e %b %R " : "%b %e %R "; 329 else 330 /* mmm dd yyyy || dd mmm yyyy */ 331 format = d_first ? "%e %b %Y " : "%b %e %Y "; 332 strftime(longstring, sizeof(longstring), format, localtime(&ftime)); 333 fputs(longstring, stdout); 334 } 335 336 static int 337 printtype(mode) 338 u_int mode; 339 { 340 switch (mode & S_IFMT) { 341 case S_IFDIR: 342 (void)putchar('/'); 343 return (1); 344 case S_IFIFO: 345 (void)putchar('|'); 346 return (1); 347 case S_IFLNK: 348 (void)putchar('@'); 349 return (1); 350 case S_IFSOCK: 351 (void)putchar('='); 352 return (1); 353 case S_IFWHT: 354 (void)putchar('%'); 355 return (1); 356 } 357 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 358 (void)putchar('*'); 359 return (1); 360 } 361 return (0); 362 } 363 364 #ifdef COLORLS 365 static int 366 putch(c) 367 int c; 368 { 369 (void) putchar(c); 370 return 0; 371 } 372 373 static int 374 writech(c) 375 int c; 376 { 377 char tmp = c; 378 379 (void) write(STDOUT_FILENO, &tmp, 1); 380 return 0; 381 } 382 383 static void 384 printcolor(c) 385 Colors c; 386 { 387 char *ansiseq; 388 389 if (colors[c][0] != -1) { 390 ansiseq = tgoto(ansi_fgcol, 0, colors[c][0]); 391 if (ansiseq) 392 tputs(ansiseq, 1, putch); 393 } 394 395 if (colors[c][1] != -1) { 396 ansiseq = tgoto(ansi_bgcol, 0, colors[c][1]); 397 if (ansiseq) 398 tputs(ansiseq, 1, putch); 399 } 400 } 401 402 static void 403 endcolor(sig) 404 int sig; 405 { 406 tputs(ansi_coloff, 1, sig ? writech : putch); 407 } 408 409 static int 410 colortype(mode) 411 mode_t mode; 412 { 413 switch(mode & S_IFMT) { 414 case S_IFDIR: 415 if (mode & S_IWOTH) 416 if (mode & S_ISTXT) 417 printcolor(C_WSDIR); 418 else 419 printcolor(C_WDIR); 420 else 421 printcolor(C_DIR); 422 return(1); 423 case S_IFLNK: 424 printcolor(C_LNK); 425 return(1); 426 case S_IFSOCK: 427 printcolor(C_SOCK); 428 return(1); 429 case S_IFIFO: 430 printcolor(C_FIFO); 431 return(1); 432 case S_IFBLK: 433 printcolor(C_BLK); 434 return(1); 435 case S_IFCHR: 436 printcolor(C_CHR); 437 return(1); 438 } 439 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 440 if (mode & S_ISUID) 441 printcolor(C_SUID); 442 else if (mode & S_ISGID) 443 printcolor(C_SGID); 444 else 445 printcolor(C_EXEC); 446 return(1); 447 } 448 return(0); 449 } 450 451 void 452 parsecolors(cs) 453 char *cs; 454 { 455 int i, j, len; 456 char c[2]; 457 458 if (cs == NULL) cs = ""; /* LSCOLORS not set */ 459 len = strlen(cs); 460 for (i = 0 ; i < C_NUMCOLORS ; i++) { 461 if (len <= 2*i) { 462 c[0] = defcolors[2*i]; 463 c[1] = defcolors[2*i+1]; 464 } 465 else { 466 c[0] = cs[2*i]; 467 c[1] = cs[2*i+1]; 468 } 469 for (j = 0 ; j < 2 ; j++) { 470 if ((c[j] < '0' || c[j] > '7') && 471 tolower((unsigned char)c[j]) != 'x') { 472 fprintf(stderr, 473 "error: invalid character '%c' in LSCOLORS env var\n", 474 c[j]); 475 c[j] = defcolors[2*i+j]; 476 } 477 if (tolower((unsigned char)c[j]) == 'x') 478 colors[i][j] = -1; 479 else 480 colors[i][j] = c[j]-'0'; 481 } 482 } 483 } 484 485 void 486 colorquit(sig) 487 int sig; 488 { 489 endcolor(sig); 490 491 (void) signal(sig, SIG_DFL); 492 (void) kill(getpid(), sig); 493 } 494 #endif /*COLORLS*/ 495 496 static void 497 printlink(p) 498 FTSENT *p; 499 { 500 int lnklen; 501 char name[MAXPATHLEN + 1], path[MAXPATHLEN + 1]; 502 503 if (p->fts_level == FTS_ROOTLEVEL) 504 (void)snprintf(name, sizeof(name), "%s", p->fts_name); 505 else 506 (void)snprintf(name, sizeof(name), 507 "%s/%s", p->fts_parent->fts_accpath, p->fts_name); 508 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 509 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 510 return; 511 } 512 path[lnklen] = '\0'; 513 (void)printf(" -> "); 514 printname(path); 515 } 516