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 (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) 163 if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0) 164 (void)printf("%3d, 0x%08x ", 165 major(sp->st_rdev), 166 (u_int)minor(sp->st_rdev)); 167 else 168 (void)printf("%3d, %3d ", 169 major(sp->st_rdev), minor(sp->st_rdev)); 170 else if (dp->bcfile) 171 (void)printf("%*s%*qd ", 172 8 - dp->s_size, "", dp->s_size, sp->st_size); 173 else 174 (void)printf("%*qd ", dp->s_size, sp->st_size); 175 if (f_accesstime) 176 printtime(sp->st_atime); 177 else if (f_statustime) 178 printtime(sp->st_ctime); 179 else 180 printtime(sp->st_mtime); 181 #ifdef COLORLS 182 if (f_color) 183 color_printed = colortype(sp->st_mode); 184 #endif 185 (void)printname(p->fts_name); 186 #ifdef COLORLS 187 if (f_color && color_printed) 188 endcolor(0); 189 #endif 190 if (f_type) 191 (void)printtype(sp->st_mode); 192 if (S_ISLNK(sp->st_mode)) 193 printlink(p); 194 (void)putchar('\n'); 195 } 196 } 197 198 void 199 printcol(dp) 200 DISPLAY *dp; 201 { 202 extern int termwidth; 203 static FTSENT **array; 204 static int lastentries = -1; 205 FTSENT *p; 206 int base, chcnt, cnt, col, colwidth, num; 207 int endcol, numcols, numrows, row; 208 int tabwidth; 209 210 if (f_notabs) 211 tabwidth = 1; 212 else 213 tabwidth = 8; 214 215 /* 216 * Have to do random access in the linked list -- build a table 217 * of pointers. 218 */ 219 if (dp->entries > lastentries) { 220 lastentries = dp->entries; 221 if ((array = 222 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { 223 warn(NULL); 224 printscol(dp); 225 } 226 } 227 for (p = dp->list, num = 0; p; p = p->fts_link) 228 if (p->fts_number != NO_PRINT) 229 array[num++] = p; 230 231 colwidth = dp->maxlen; 232 if (f_inode) 233 colwidth += dp->s_inode + 1; 234 if (f_size) 235 colwidth += dp->s_block + 1; 236 if (f_type) 237 colwidth += 1; 238 239 colwidth = (colwidth + tabwidth) & ~(tabwidth - 1); 240 if (termwidth < 2 * colwidth) { 241 printscol(dp); 242 return; 243 } 244 245 numcols = termwidth / colwidth; 246 numrows = num / numcols; 247 if (num % numcols) 248 ++numrows; 249 250 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) 251 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 252 for (row = 0; row < numrows; ++row) { 253 endcol = colwidth; 254 for (base = row, chcnt = col = 0; col < numcols; ++col) { 255 chcnt += printaname(array[base], dp->s_inode, 256 dp->s_block); 257 if ((base += numrows) >= num) 258 break; 259 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1))) 260 <= endcol){ 261 (void)putchar(f_notabs ? ' ' : '\t'); 262 chcnt = cnt; 263 } 264 endcol += colwidth; 265 } 266 (void)putchar('\n'); 267 } 268 } 269 270 /* 271 * print [inode] [size] name 272 * return # of characters printed, no trailing characters. 273 */ 274 static int 275 printaname(p, inodefield, sizefield) 276 FTSENT *p; 277 u_long sizefield, inodefield; 278 { 279 struct stat *sp; 280 int chcnt; 281 #ifdef COLORLS 282 int color_printed = 0; 283 #endif 284 285 sp = p->fts_statp; 286 chcnt = 0; 287 if (f_inode) 288 chcnt += printf("%*lu ", (int)inodefield, (u_long)sp->st_ino); 289 if (f_size) 290 chcnt += printf("%*qd ", 291 (int)sizefield, howmany(sp->st_blocks, blocksize)); 292 #ifdef COLORLS 293 if (f_color) 294 color_printed = colortype(sp->st_mode); 295 #endif 296 chcnt += printname(p->fts_name); 297 #ifdef COLORLS 298 if (f_color && color_printed) 299 endcolor(0); 300 #endif 301 if (f_type) 302 chcnt += printtype(sp->st_mode); 303 return (chcnt); 304 } 305 306 static void 307 printtime(ftime) 308 time_t ftime; 309 { 310 char longstring[80]; 311 static time_t now; 312 const char *format; 313 static int d_first = -1; 314 315 if (d_first < 0) 316 d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 317 if (now == 0) 318 now = time(NULL); 319 320 #define SIXMONTHS ((365 / 2) * 86400) 321 if (f_sectime) 322 /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */ 323 format = d_first ? "%e %b %T %Y " : "%b %e %T %Y "; 324 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS) 325 /* mmm dd hh:mm || dd mmm hh:mm */ 326 format = d_first ? "%e %b %R " : "%b %e %R "; 327 else 328 /* mmm dd yyyy || dd mmm yyyy */ 329 format = d_first ? "%e %b %Y " : "%b %e %Y "; 330 strftime(longstring, sizeof(longstring), format, localtime(&ftime)); 331 fputs(longstring, stdout); 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 static int 364 putch(c) 365 int c; 366 { 367 (void) putchar(c); 368 return 0; 369 } 370 371 static int 372 writech(c) 373 int c; 374 { 375 char tmp = c; 376 377 (void) write(STDOUT_FILENO, &tmp, 1); 378 return 0; 379 } 380 381 static void 382 printcolor(c) 383 Colors c; 384 { 385 char *ansiseq; 386 387 if (colors[c][0] != -1) { 388 ansiseq = tgoto(ansi_fgcol, 0, colors[c][0]); 389 if (ansiseq) 390 tputs(ansiseq, 1, putch); 391 } 392 393 if (colors[c][1] != -1) { 394 ansiseq = tgoto(ansi_bgcol, 0, colors[c][1]); 395 if (ansiseq) 396 tputs(ansiseq, 1, putch); 397 } 398 } 399 400 static void 401 endcolor(sig) 402 int sig; 403 { 404 tputs(ansi_coloff, 1, sig ? writech : putch); 405 } 406 407 static int 408 colortype(mode) 409 mode_t mode; 410 { 411 switch(mode & S_IFMT) { 412 case S_IFDIR: 413 if (mode & S_IWOTH) 414 if (mode & S_ISTXT) 415 printcolor(C_WSDIR); 416 else 417 printcolor(C_WDIR); 418 else 419 printcolor(C_DIR); 420 return(1); 421 case S_IFLNK: 422 printcolor(C_LNK); 423 return(1); 424 case S_IFSOCK: 425 printcolor(C_SOCK); 426 return(1); 427 case S_IFIFO: 428 printcolor(C_FIFO); 429 return(1); 430 case S_IFBLK: 431 printcolor(C_BLK); 432 return(1); 433 case S_IFCHR: 434 printcolor(C_CHR); 435 return(1); 436 } 437 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 438 if (mode & S_ISUID) 439 printcolor(C_SUID); 440 else if (mode & S_ISGID) 441 printcolor(C_SGID); 442 else 443 printcolor(C_EXEC); 444 return(1); 445 } 446 return(0); 447 } 448 449 void 450 parsecolors(cs) 451 char *cs; 452 { 453 int i, j, len; 454 char c[2]; 455 456 if (cs == NULL) cs = ""; /* LSCOLORS not set */ 457 len = strlen(cs); 458 for (i = 0 ; i < C_NUMCOLORS ; i++) { 459 if (len <= 2*i) { 460 c[0] = defcolors[2*i]; 461 c[1] = defcolors[2*i+1]; 462 } 463 else { 464 c[0] = cs[2*i]; 465 c[1] = cs[2*i+1]; 466 } 467 for (j = 0 ; j < 2 ; j++) { 468 if ((c[j] < '0' || c[j] > '7') && 469 tolower((unsigned char)c[j]) != 'x') { 470 fprintf(stderr, 471 "error: invalid character '%c' in LSCOLORS env var\n", 472 c[j]); 473 c[j] = defcolors[2*i+j]; 474 } 475 if (tolower((unsigned char)c[j]) == 'x') 476 colors[i][j] = -1; 477 else 478 colors[i][j] = c[j]-'0'; 479 } 480 } 481 } 482 483 void 484 colorquit(sig) 485 int sig; 486 { 487 endcolor(sig); 488 489 (void) signal(sig, SIG_DFL); 490 (void) kill(getpid(), sig); 491 } 492 #endif /*COLORLS*/ 493 494 static void 495 printlink(p) 496 FTSENT *p; 497 { 498 int lnklen; 499 char name[MAXPATHLEN + 1], path[MAXPATHLEN + 1]; 500 501 if (p->fts_level == FTS_ROOTLEVEL) 502 (void)snprintf(name, sizeof(name), "%s", p->fts_name); 503 else 504 (void)snprintf(name, sizeof(name), 505 "%s/%s", p->fts_parent->fts_accpath, p->fts_name); 506 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 507 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 508 return; 509 } 510 path[lnklen] = '\0'; 511 (void)printf(" -> "); 512 printname(path); 513 } 514