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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: src/bin/ls/print.c,v 1.38 2001/03/21 15:14:47 ache Exp $"; | |
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 "ls_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 | #if defined(HAVE_LANGINFO) | |
317 | d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); | |
318 | #else | |
319 | d_first = 0; | |
320 | #endif | |
321 | if (now == 0) | |
322 | now = time(NULL); | |
323 | ||
324 | #define SIXMONTHS ((365 / 2) * 86400) | |
325 | if (f_sectime) | |
326 | /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */ | |
327 | format = d_first ? "%e %b %T %Y " : "%b %e %T %Y "; | |
328 | else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS) | |
329 | /* mmm dd hh:mm || dd mmm hh:mm */ | |
330 | format = d_first ? "%e %b %R " : "%b %e %R "; | |
331 | else | |
332 | /* mmm dd yyyy || dd mmm yyyy */ | |
333 | format = d_first ? "%e %b %Y " : "%b %e %Y "; | |
334 | strftime(longstring, sizeof(longstring), format, localtime(&ftime)); | |
335 | fputs(longstring, stdout); | |
336 | } | |
337 | ||
338 | static int | |
339 | printtype(mode) | |
340 | u_int mode; | |
341 | { | |
342 | switch (mode & S_IFMT) { | |
343 | case S_IFDIR: | |
344 | (void)putchar('/'); | |
345 | return (1); | |
346 | case S_IFIFO: | |
347 | (void)putchar('|'); | |
348 | return (1); | |
349 | case S_IFLNK: | |
350 | (void)putchar('@'); | |
351 | return (1); | |
352 | case S_IFSOCK: | |
353 | (void)putchar('='); | |
354 | return (1); | |
355 | case S_IFWHT: | |
356 | (void)putchar('%'); | |
357 | return (1); | |
358 | } | |
359 | if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { | |
360 | (void)putchar('*'); | |
361 | return (1); | |
362 | } | |
363 | return (0); | |
364 | } | |
365 | ||
366 | #ifdef COLORLS | |
367 | static int | |
368 | putch(c) | |
369 | int c; | |
370 | { | |
371 | (void) putchar(c); | |
372 | return 0; | |
373 | } | |
374 | ||
375 | static int | |
376 | writech(c) | |
377 | int c; | |
378 | { | |
379 | char tmp = c; | |
380 | ||
381 | (void) write(STDOUT_FILENO, &tmp, 1); | |
382 | return 0; | |
383 | } | |
384 | ||
385 | static void | |
386 | printcolor(c) | |
387 | Colors c; | |
388 | { | |
389 | char *ansiseq; | |
390 | ||
391 | if (colors[c][0] != -1) { | |
392 | ansiseq = tgoto(ansi_fgcol, 0, colors[c][0]); | |
393 | if (ansiseq) | |
394 | tputs(ansiseq, 1, putch); | |
395 | } | |
396 | ||
397 | if (colors[c][1] != -1) { | |
398 | ansiseq = tgoto(ansi_bgcol, 0, colors[c][1]); | |
399 | if (ansiseq) | |
400 | tputs(ansiseq, 1, putch); | |
401 | } | |
402 | } | |
403 | ||
404 | static void | |
405 | endcolor(sig) | |
406 | int sig; | |
407 | { | |
408 | tputs(ansi_coloff, 1, sig ? writech : putch); | |
409 | } | |
410 | ||
411 | static int | |
412 | colortype(mode) | |
413 | mode_t mode; | |
414 | { | |
415 | switch(mode & S_IFMT) { | |
416 | case S_IFDIR: | |
417 | if (mode & S_IWOTH) | |
418 | if (mode & S_ISTXT) | |
419 | printcolor(C_WSDIR); | |
420 | else | |
421 | printcolor(C_WDIR); | |
422 | else | |
423 | printcolor(C_DIR); | |
424 | return(1); | |
425 | case S_IFLNK: | |
426 | printcolor(C_LNK); | |
427 | return(1); | |
428 | case S_IFSOCK: | |
429 | printcolor(C_SOCK); | |
430 | return(1); | |
431 | case S_IFIFO: | |
432 | printcolor(C_FIFO); | |
433 | return(1); | |
434 | case S_IFBLK: | |
435 | printcolor(C_BLK); | |
436 | return(1); | |
437 | case S_IFCHR: | |
438 | printcolor(C_CHR); | |
439 | return(1); | |
440 | } | |
441 | if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { | |
442 | if (mode & S_ISUID) | |
443 | printcolor(C_SUID); | |
444 | else if (mode & S_ISGID) | |
445 | printcolor(C_SGID); | |
446 | else | |
447 | printcolor(C_EXEC); | |
448 | return(1); | |
449 | } | |
450 | return(0); | |
451 | } | |
452 | ||
453 | void | |
454 | parsecolors(cs) | |
455 | char *cs; | |
456 | { | |
457 | int i, j, len; | |
458 | char c[2]; | |
459 | ||
460 | if (cs == NULL) cs = ""; /* LSCOLORS not set */ | |
461 | len = strlen(cs); | |
462 | for (i = 0 ; i < C_NUMCOLORS ; i++) { | |
463 | if (len <= 2*i) { | |
464 | c[0] = defcolors[2*i]; | |
465 | c[1] = defcolors[2*i+1]; | |
466 | } | |
467 | else { | |
468 | c[0] = cs[2*i]; | |
469 | c[1] = cs[2*i+1]; | |
470 | } | |
471 | for (j = 0 ; j < 2 ; j++) { | |
472 | if ((c[j] < '0' || c[j] > '7') && | |
473 | tolower((unsigned char)c[j]) != 'x') { | |
474 | fprintf(stderr, | |
475 | "error: invalid character '%c' in LSCOLORS env var\n", | |
476 | c[j]); | |
477 | c[j] = defcolors[2*i+j]; | |
478 | } | |
479 | if (tolower((unsigned char)c[j]) == 'x') | |
480 | colors[i][j] = -1; | |
481 | else | |
482 | colors[i][j] = c[j]-'0'; | |
483 | } | |
484 | } | |
485 | } | |
486 | ||
487 | void | |
488 | colorquit(sig) | |
489 | int sig; | |
490 | { | |
491 | endcolor(sig); | |
492 | ||
493 | (void) signal(sig, SIG_DFL); | |
494 | (void) kill(getpid(), sig); | |
495 | } | |
496 | #endif /*COLORLS*/ | |
497 | ||
498 | static void | |
499 | printlink(p) | |
500 | FTSENT *p; | |
501 | { | |
502 | int lnklen; | |
503 | char name[MAXPATHLEN + 1], path[MAXPATHLEN + 1]; | |
504 | ||
505 | if (p->fts_level == FTS_ROOTLEVEL) | |
506 | (void)snprintf(name, sizeof(name), "%s", p->fts_name); | |
507 | else | |
508 | (void)snprintf(name, sizeof(name), | |
509 | "%s/%s", p->fts_parent->fts_accpath, p->fts_name); | |
510 | if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { | |
511 | (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); | |
512 | return; | |
513 | } | |
514 | path[lnklen] = '\0'; | |
515 | (void)printf(" -> "); | |
516 | printname(path); | |
517 | } |