2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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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
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33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 static char sccsid[] = "@(#)print.c 8.4 (Berkeley) 4/17/94";
42 #include <sys/cdefs.h>
43 __FBSDID("$FreeBSD: src/bin/ls/print.c,v 1.19.2.7 2002/11/17 10:27:34 tjr Exp $");
45 #include <sys/param.h>
67 static int printaname(FTSENT *, u_long, u_long);
68 static void printlink(FTSENT *);
69 static void printtime(time_t);
70 static int printtype(u_int);
71 static void printsize(size_t, off_t);
73 static void endcolor(int);
74 static int colortype(mode_t);
77 #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT)
79 #define KILO_SZ(n) (n)
80 #define MEGA_SZ(n) ((n) * (n))
81 #define GIGA_SZ(n) ((n) * (n) * (n))
82 #define TERA_SZ(n) ((n) * (n) * (n) * (n))
83 #define PETA_SZ(n) ((n) * (n) * (n) * (n) * (n))
85 #define KILO_2_SZ (KILO_SZ(1024ULL))
86 #define MEGA_2_SZ (MEGA_SZ(1024ULL))
87 #define GIGA_2_SZ (GIGA_SZ(1024ULL))
88 #define TERA_2_SZ (TERA_SZ(1024ULL))
89 #define PETA_2_SZ (PETA_SZ(1024ULL))
91 static unsigned long long vals_base2[] = {1, KILO_2_SZ, MEGA_2_SZ, GIGA_2_SZ, TERA_2_SZ, PETA_2_SZ};
94 NONE, KILO, MEGA, GIGA, TERA, PETA, UNIT_MAX
96 static unit_t unit_adjust(off_t *);
98 static int unitp[] = {NONE, KILO, MEGA, GIGA, TERA, PETA};
101 /* Most of these are taken from <sys/stat.h> */
102 typedef enum Colors {
103 C_DIR, /* directory */
104 C_LNK, /* symbolic link */
107 C_EXEC, /* executable */
108 C_BLK, /* block special */
109 C_CHR, /* character special */
110 C_SUID, /* setuid executable */
111 C_SGID, /* setgid executable */
112 C_WSDIR, /* directory writeble to others, with sticky
114 C_WDIR, /* directory writeble to others, without
116 C_NUMCOLORS /* just a place-holder */
119 static const char *defcolors = "exfxcxdxbxegedabagacad";
121 /* colors for file types */
125 } colors[C_NUMCOLORS];
129 printscol(DISPLAY *dp)
133 for (p = dp->list; p; p = p->fts_link) {
136 (void)printaname(p, dp->s_inode, dp->s_block);
142 * print name in current style
145 printname(const char *name)
147 if (f_octal || f_octal_escape)
148 return prn_octal(name);
150 return prn_printable(name);
152 return printf("%s", name);
156 printlong(DISPLAY *dp)
163 int color_printed = 0;
166 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
167 (void)printf("total %lu\n", howmany(dp->btotal, blocksize));
169 for (p = dp->list; p; p = p->fts_link) {
174 (void)printf("%*lu ", dp->s_inode, (u_long)sp->st_ino);
176 (void)printf("%*lld ",
177 dp->s_block, howmany(sp->st_blocks, blocksize));
178 strmode(sp->st_mode, buf);
180 (void)printf("%s %*u %-*s %-*s ", buf, dp->s_nlink,
181 sp->st_nlink, dp->s_user, np->user, dp->s_group,
184 (void)printf("%-*s ", dp->s_flags, np->flags);
185 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode))
186 if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0)
187 (void)printf("%3d, 0x%08x ",
189 (u_int)minor(sp->st_rdev));
191 (void)printf("%3d, %3d ",
192 major(sp->st_rdev), minor(sp->st_rdev));
194 (void)printf("%*s%*lld ",
195 8 - dp->s_size, "", dp->s_size, sp->st_size);
197 printsize(dp->s_size, sp->st_size);
199 printtime(sp->st_atime);
200 else if (f_statustime)
201 printtime(sp->st_ctime);
203 printtime(sp->st_mtime);
206 color_printed = colortype(sp->st_mode);
208 (void)printname(p->fts_name);
210 if (f_color && color_printed)
214 (void)printtype(sp->st_mode);
215 if (S_ISLNK(sp->st_mode))
222 printstream(DISPLAY *dp)
225 extern int termwidth;
228 for (p = dp->list, chcnt = 0; p; p = p->fts_link) {
229 if (p->fts_number == NO_PRINT)
231 if (strlen(p->fts_name) + chcnt +
232 (p->fts_link ? 2 : 0) >= (unsigned)termwidth) {
236 chcnt += printaname(p, dp->s_inode, dp->s_block);
247 printcol(DISPLAY *dp)
249 extern int termwidth;
250 static FTSENT **array;
251 static int lastentries = -1;
271 * Have to do random access in the linked list -- build a table
274 if (dp->entries > lastentries) {
275 lastentries = dp->entries;
277 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) {
282 for (p = dp->list, num = 0; p; p = p->fts_link)
283 if (p->fts_number != NO_PRINT)
286 colwidth = dp->maxlen;
288 colwidth += dp->s_inode + 1;
290 colwidth += dp->s_block + 1;
294 colwidth = (colwidth + tabwidth) & ~(tabwidth - 1);
295 if (termwidth < 2 * colwidth) {
299 numcols = termwidth / colwidth;
300 numrows = num / numcols;
304 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
305 (void)printf("total %lu\n", howmany(dp->btotal, blocksize));
309 for (row = 0; row < numrows; ++row) {
313 for (col = 0, chcnt = 0; col < numcols; ++col) {
314 chcnt += printaname(array[base], dp->s_inode,
322 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1)))
324 if (f_sortacross && col + 1 >= numcols)
326 (void)putchar(f_notabs ? ' ' : '\t');
336 * print [inode] [size] name
337 * return # of characters printed, no trailing characters.
340 printaname(FTSENT *p, u_long inodefield, u_long sizefield)
345 int color_printed = 0;
351 chcnt += printf("%*lu ", (int)inodefield, (u_long)sp->st_ino);
353 chcnt += printf("%*lld ",
354 (int)sizefield, howmany(sp->st_blocks, blocksize));
357 color_printed = colortype(sp->st_mode);
359 chcnt += printname(p->fts_name);
361 if (f_color && color_printed)
365 chcnt += printtype(sp->st_mode);
370 printtime(time_t ftime)
375 static int d_first = -1;
378 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
382 #define SIXMONTHS ((365 / 2) * 86400)
384 /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */
385 format = d_first ? "%e %b %T %Y " : "%b %e %T %Y ";
386 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS)
387 /* mmm dd hh:mm || dd mmm hh:mm */
388 format = d_first ? "%e %b %R " : "%b %e %R ";
390 /* mmm dd yyyy || dd mmm yyyy */
391 format = d_first ? "%e %b %Y " : "%b %e %Y ";
392 strftime(longstring, sizeof(longstring), format, localtime(&ftime));
393 fputs(longstring, stdout);
397 printtype(u_int mode)
401 if ((mode & S_IFMT) == S_IFDIR) {
408 switch (mode & S_IFMT) {
427 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
447 (void)write(STDOUT_FILENO, &tmp, 1);
457 tputs(enter_bold, 1, putch);
459 if (colors[c].num[0] != -1) {
460 ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]);
462 tputs(ansiseq, 1, putch);
464 if (colors[c].num[1] != -1) {
465 ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]);
467 tputs(ansiseq, 1, putch);
474 tputs(ansi_coloff, 1, sig ? writech : putch);
475 tputs(attrs_off, 1, sig ? writech : putch);
479 colortype(mode_t mode)
481 switch (mode & S_IFMT) {
507 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
510 else if (mode & S_ISGID)
520 parsecolors(const char *cs)
526 short legacy_warn = 0;
529 cs = ""; /* LSCOLORS not set */
531 for (i = 0; i < C_NUMCOLORS; i++) {
535 c[0] = defcolors[2 * i];
536 c[1] = defcolors[2 * i + 1];
539 c[1] = cs[2 * i + 1];
541 for (j = 0; j < 2; j++) {
542 /* Legacy colours used 0-7 */
543 if (c[j] >= '0' && c[j] <= '7') {
544 colors[i].num[j] = c[j] - '0';
547 "warn: LSCOLORS should use "
548 "characters a-h instead of 0-9 ("
549 "see the manual page)\n");
552 } else if (c[j] >= 'a' && c[j] <= 'h')
553 colors[i].num[j] = c[j] - 'a';
554 else if (c[j] >= 'A' && c[j] <= 'H') {
555 colors[i].num[j] = c[j] - 'A';
557 } else if (tolower((unsigned char)c[j] == 'x'))
558 colors[i].num[j] = -1;
561 "error: invalid character '%c' in LSCOLORS"
563 colors[i].num[j] = -1;
574 (void)signal(sig, SIG_DFL);
575 (void)kill(getpid(), sig);
584 char name[MAXPATHLEN + 1];
585 char path[MAXPATHLEN + 1];
587 if (p->fts_level == FTS_ROOTLEVEL)
588 (void)snprintf(name, sizeof(name), "%s", p->fts_name);
590 (void)snprintf(name, sizeof(name),
591 "%s/%s", p->fts_parent->fts_accpath, p->fts_name);
592 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) {
593 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno));
597 (void)printf(" -> ");
598 (void)printname(path);
602 printsize(size_t width, off_t bytes)
607 unit = unit_adjust(&bytes);
610 (void)printf("%*s ", width, "0B");
612 (void)printf("%*lld%c ", width - 1, bytes,
615 (void)printf("%*lld ", width, bytes);
619 * Output in "human-readable" format. Uses 3 digits max and puts
620 * unit suffixes at the end. Makes output compact and easy to read,
621 * especially on huge disks.
625 unit_adjust(off_t *val)
629 unsigned int unit_sz;
631 abval = fabs((double)*val);
633 unit_sz = abval ? ilogb(abval) / 10 : 0;
635 if (unit_sz >= UNIT_MAX) {
638 unit = unitp[unit_sz];
639 *val /= (double)vals_base2[unit_sz];