1 /* $NetBSD: print.c,v 1.39 2004/08/09 20:14:54 jschauma Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Michael Fischbein. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)print.c 8.5 (Berkeley) 7/28/94"; 39 #else 40 __RCSID("$NetBSD: print.c,v 1.39 2004/08/09 20:14:54 jschauma Exp $"); 41 #endif 42 #endif /* not lint */ 43 44 #include <sys/param.h> 45 #include <sys/stat.h> 46 47 #include <err.h> 48 #include <errno.h> 49 #include <fts.h> 50 #include <grp.h> 51 #include <pwd.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <string.h> 55 #include <time.h> 56 #include <tzfile.h> 57 #include <unistd.h> 58 #include <util.h> 59 60 #include "ls.h" 61 #include "extern.h" 62 63 extern int termwidth; 64 65 static int printaname(FTSENT *, int, int); 66 static void printlink(FTSENT *); 67 static void printtime(time_t); 68 static int printtype(u_int); 69 70 static time_t now; 71 72 #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) 73 74 void 75 printscol(DISPLAY *dp) 76 { 77 FTSENT *p; 78 79 for (p = dp->list; p; p = p->fts_link) { 80 if (IS_NOPRINT(p)) 81 continue; 82 (void)printaname(p, dp->s_inode, dp->s_block); 83 (void)putchar('\n'); 84 } 85 } 86 87 void 88 printlong(DISPLAY *dp) 89 { 90 struct stat *sp; 91 FTSENT *p; 92 NAMES *np; 93 char buf[20], szbuf[5]; 94 95 now = time(NULL); 96 97 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) { 98 if (f_humanize) { 99 if ((humanize_number(szbuf, sizeof(szbuf), dp->stotal, 100 "", HN_AUTOSCALE, 101 (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 102 err(1, "humanize_number"); 103 (void)printf("total %s\n", szbuf); 104 } else { 105 (void)printf("total %llu\n", 106 (long long)(howmany(dp->btotal, blocksize))); 107 } 108 } 109 110 for (p = dp->list; p; p = p->fts_link) { 111 if (IS_NOPRINT(p)) 112 continue; 113 sp = p->fts_statp; 114 if (f_inode) 115 (void)printf("%*lu ", dp->s_inode, 116 (unsigned long)sp->st_ino); 117 if (f_size && !f_humanize) { 118 (void)printf("%*llu ", dp->s_block, 119 (long long)howmany(sp->st_blocks, blocksize)); 120 } 121 (void)strmode(sp->st_mode, buf); 122 np = p->fts_pointer; 123 (void)printf("%s %*lu ", buf, dp->s_nlink, 124 (unsigned long)sp->st_nlink); 125 if (!f_grouponly) 126 (void)printf("%-*s ", dp->s_user, np->user); 127 (void)printf("%-*s ", dp->s_group, np->group); 128 if (f_flags) 129 (void)printf("%-*s ", dp->s_flags, np->flags); 130 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) 131 (void)printf("%*u, %*u ", 132 dp->s_major, major(sp->st_rdev), dp->s_minor, 133 minor(sp->st_rdev)); 134 else 135 if (f_humanize) { 136 if ((humanize_number(szbuf, sizeof(szbuf), 137 sp->st_size, "", HN_AUTOSCALE, 138 (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 139 err(1, "humanize_number"); 140 (void)printf("%*s ", dp->s_size, szbuf); 141 } else { 142 (void)printf("%*llu ", dp->s_size, 143 (long long)sp->st_size); 144 } 145 if (f_accesstime) 146 printtime(sp->st_atime); 147 else if (f_statustime) 148 printtime(sp->st_ctime); 149 else 150 printtime(sp->st_mtime); 151 if (f_octal || f_octal_escape) 152 (void)safe_print(p->fts_name); 153 else if (f_nonprint) 154 (void)printescaped(p->fts_name); 155 else 156 (void)printf("%s", p->fts_name); 157 158 if (f_type || (f_typedir && S_ISDIR(sp->st_mode))) 159 (void)printtype(sp->st_mode); 160 if (S_ISLNK(sp->st_mode)) 161 printlink(p); 162 (void)putchar('\n'); 163 } 164 } 165 166 void 167 printcol(DISPLAY *dp) 168 { 169 static FTSENT **array; 170 static int lastentries = -1; 171 FTSENT *p; 172 int base, chcnt, col, colwidth, num; 173 int numcols, numrows, row; 174 char szbuf[5]; 175 176 colwidth = dp->maxlen; 177 if (f_inode) 178 colwidth += dp->s_inode + 1; 179 if (f_size) { 180 if (f_humanize) 181 colwidth += dp->s_size + 1; 182 else 183 colwidth += dp->s_block + 1; 184 } 185 if (f_type || f_typedir) 186 colwidth += 1; 187 188 colwidth += 1; 189 190 if (termwidth < 2 * colwidth) { 191 printscol(dp); 192 return; 193 } 194 195 /* 196 * Have to do random access in the linked list -- build a table 197 * of pointers. 198 */ 199 if (dp->entries > lastentries) { 200 lastentries = dp->entries; 201 if ((array = 202 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { 203 warn(NULL); 204 printscol(dp); 205 } 206 } 207 for (p = dp->list, num = 0; p; p = p->fts_link) 208 if (p->fts_number != NO_PRINT) 209 array[num++] = p; 210 211 numcols = termwidth / colwidth; 212 colwidth = termwidth / numcols; /* spread out if possible */ 213 numrows = num / numcols; 214 if (num % numcols) 215 ++numrows; 216 217 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) { 218 if (f_humanize) { 219 if ((humanize_number(szbuf, sizeof(szbuf), dp->stotal, 220 "", HN_AUTOSCALE, 221 (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 222 err(1, "humanize_number"); 223 (void)printf("total %s\n", szbuf); 224 } else { 225 (void)printf("total %llu\n", 226 (long long)(howmany(dp->btotal, blocksize))); 227 } 228 } 229 for (row = 0; row < numrows; ++row) { 230 for (base = row, chcnt = col = 0; col < numcols; ++col) { 231 chcnt = printaname(array[base], dp->s_inode, 232 f_humanize ? dp->s_size : dp->s_block); 233 if ((base += numrows) >= num) 234 break; 235 while (chcnt++ < colwidth) 236 (void)putchar(' '); 237 } 238 (void)putchar('\n'); 239 } 240 } 241 242 void 243 printacol(DISPLAY *dp) 244 { 245 FTSENT *p; 246 int chcnt, col, colwidth; 247 int numcols; 248 char szbuf[5]; 249 250 colwidth = dp->maxlen; 251 if (f_inode) 252 colwidth += dp->s_inode + 1; 253 if (f_size) { 254 if (f_humanize) 255 colwidth += dp->s_size + 1; 256 else 257 colwidth += dp->s_block + 1; 258 } 259 if (f_type || f_typedir) 260 colwidth += 1; 261 262 colwidth += 1; 263 264 if (termwidth < 2 * colwidth) { 265 printscol(dp); 266 return; 267 } 268 269 numcols = termwidth / colwidth; 270 colwidth = termwidth / numcols; /* spread out if possible */ 271 272 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) { 273 if (f_humanize) { 274 if ((humanize_number(szbuf, sizeof(szbuf), dp->stotal, 275 "", HN_AUTOSCALE, 276 (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 277 err(1, "humanize_number"); 278 (void)printf("total %s\n", szbuf); 279 } else { 280 (void)printf("total %llu\n", 281 (long long)(howmany(dp->btotal, blocksize))); 282 } 283 } 284 chcnt = col = 0; 285 for (p = dp->list; p; p = p->fts_link) { 286 if (IS_NOPRINT(p)) 287 continue; 288 if (col >= numcols) { 289 chcnt = col = 0; 290 (void)putchar('\n'); 291 } 292 chcnt = printaname(p, dp->s_inode, 293 f_humanize ? dp->s_size : dp->s_block); 294 while (chcnt++ < colwidth) 295 (void)putchar(' '); 296 col++; 297 } 298 (void)putchar('\n'); 299 } 300 301 void 302 printstream(DISPLAY *dp) 303 { 304 FTSENT *p; 305 int col; 306 int extwidth; 307 308 extwidth = 0; 309 if (f_inode) 310 extwidth += dp->s_inode + 1; 311 if (f_size) { 312 if (f_humanize) 313 extwidth += dp->s_size + 1; 314 else 315 extwidth += dp->s_block + 1; 316 } 317 if (f_type) 318 extwidth += 1; 319 320 for (col = 0, p = dp->list; p != NULL; p = p->fts_link) { 321 if (IS_NOPRINT(p)) 322 continue; 323 if (col > 0) { 324 (void)putchar(','), col++; 325 if (col + 1 + extwidth + p->fts_namelen >= termwidth) 326 (void)putchar('\n'), col = 0; 327 else 328 (void)putchar(' '), col++; 329 } 330 col += printaname(p, dp->s_inode, 331 f_humanize ? dp->s_size : dp->s_block); 332 } 333 (void)putchar('\n'); 334 } 335 336 /* 337 * print [inode] [size] name 338 * return # of characters printed, no trailing characters. 339 */ 340 static int 341 printaname(FTSENT *p, int inodefield, int sizefield) 342 { 343 struct stat *sp; 344 int chcnt; 345 char szbuf[5]; 346 347 sp = p->fts_statp; 348 chcnt = 0; 349 if (f_inode) 350 chcnt += printf("%*lu ", inodefield, (unsigned long)sp->st_ino); 351 if (f_size) { 352 if (f_humanize) { 353 if ((humanize_number(szbuf, sizeof(szbuf), sp->st_size, 354 "", HN_AUTOSCALE, 355 (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 356 err(1, "humanize_number"); 357 chcnt += printf("%*s ", sizefield, szbuf); 358 } else { 359 chcnt += printf("%*llu ", sizefield, 360 (long long)howmany(sp->st_blocks, blocksize)); 361 } 362 } 363 if (f_octal || f_octal_escape) 364 chcnt += safe_print(p->fts_name); 365 else if (f_nonprint) 366 chcnt += printescaped(p->fts_name); 367 else 368 chcnt += printf("%s", p->fts_name); 369 if (f_type || (f_typedir && S_ISDIR(sp->st_mode))) 370 chcnt += printtype(sp->st_mode); 371 return (chcnt); 372 } 373 374 static void 375 printtime(time_t ftime) 376 { 377 int i; 378 char *longstring; 379 380 longstring = ctime(&ftime); 381 for (i = 4; i < 11; ++i) 382 (void)putchar(longstring[i]); 383 384 #define SIXMONTHS ((DAYSPERNYEAR / 2) * SECSPERDAY) 385 if (f_sectime) 386 for (i = 11; i < 24; i++) 387 (void)putchar(longstring[i]); 388 else if (ftime + SIXMONTHS > now && ftime <= now) 389 for (i = 11; i < 16; ++i) 390 (void)putchar(longstring[i]); 391 else { 392 (void)putchar(' '); 393 for (i = 20; i < 24; ++i) 394 (void)putchar(longstring[i]); 395 } 396 (void)putchar(' '); 397 } 398 399 static int 400 printtype(u_int mode) 401 { 402 switch (mode & S_IFMT) { 403 case S_IFDIR: 404 (void)putchar('/'); 405 return (1); 406 case S_IFIFO: 407 (void)putchar('|'); 408 return (1); 409 case S_IFLNK: 410 (void)putchar('@'); 411 return (1); 412 case S_IFSOCK: 413 (void)putchar('='); 414 return (1); 415 case S_IFWHT: 416 (void)putchar('%'); 417 return (1); 418 } 419 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 420 (void)putchar('*'); 421 return (1); 422 } 423 return (0); 424 } 425 426 static void 427 printlink(FTSENT *p) 428 { 429 int lnklen; 430 char name[MAXPATHLEN + 1], path[MAXPATHLEN + 1]; 431 432 if (p->fts_level == FTS_ROOTLEVEL) 433 (void)snprintf(name, sizeof(name), "%s", p->fts_name); 434 else 435 (void)snprintf(name, sizeof(name), 436 "%s/%s", p->fts_parent->fts_accpath, p->fts_name); 437 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 438 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 439 return; 440 } 441 path[lnklen] = '\0'; 442 (void)printf(" -> "); 443 if (f_octal || f_octal_escape) 444 (void)safe_print(path); 445 else if (f_nonprint) 446 (void)printescaped(path); 447 else 448 (void)printf("%s", path); 449 } 450