517 lines
12 KiB
C
517 lines
12 KiB
C
/*
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* Copyright (c) 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Michael Fischbein.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)print.c 8.4 (Berkeley) 4/17/94";
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#else
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static const char rcsid[] =
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"$FreeBSD$";
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <errno.h>
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#include <fts.h>
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#include <grp.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#ifdef COLORLS
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#include <ctype.h>
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#include <termcap.h>
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#include <signal.h>
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#endif
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#include "ls.h"
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#include "extern.h"
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static int printaname __P((FTSENT *, u_long, u_long));
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static void printlink __P((FTSENT *));
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static void printtime __P((time_t));
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static int printtype __P((u_int));
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#ifdef COLORLS
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static void endcolor __P((int));
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static int colortype __P((mode_t));
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#endif
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#define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT)
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#ifdef COLORLS
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/* Most of these are taken from <sys/stat.h> */
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typedef enum Colors {
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C_DIR, /* directory */
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C_LNK, /* symbolic link */
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C_SOCK, /* socket */
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C_FIFO, /* pipe */
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C_EXEC, /* executable */
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C_BLK, /* block special */
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C_CHR, /* character special */
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C_SUID, /* setuid executable */
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C_SGID, /* setgid executable */
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C_WSDIR, /* directory writeble to others, with sticky bit */
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C_WDIR, /* directory writeble to others, without sticky bit */
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C_NUMCOLORS /* just a place-holder */
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} Colors ;
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char *defcolors = "4x5x2x3x1x464301060203";
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static int colors[C_NUMCOLORS][2];
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#endif
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void
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printscol(dp)
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DISPLAY *dp;
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{
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FTSENT *p;
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for (p = dp->list; p; p = p->fts_link) {
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if (IS_NOPRINT(p))
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continue;
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(void)printaname(p, dp->s_inode, dp->s_block);
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(void)putchar('\n');
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}
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}
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void
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printlong(dp)
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DISPLAY *dp;
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{
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struct stat *sp;
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FTSENT *p;
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NAMES *np;
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char buf[20];
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#ifdef COLORLS
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int color_printed = 0;
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#endif
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if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
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(void)printf("total %lu\n", howmany(dp->btotal, blocksize));
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for (p = dp->list; p; p = p->fts_link) {
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if (IS_NOPRINT(p))
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continue;
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sp = p->fts_statp;
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if (f_inode)
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(void)printf("%*lu ", dp->s_inode, (u_long)sp->st_ino);
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if (f_size)
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(void)printf("%*qd ",
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dp->s_block, howmany(sp->st_blocks, blocksize));
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(void)strmode(sp->st_mode, buf);
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np = p->fts_pointer;
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(void)printf("%s %*u %-*s %-*s ", buf, dp->s_nlink,
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sp->st_nlink, dp->s_user, np->user, dp->s_group,
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np->group);
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if (f_flags)
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(void)printf("%-*s ", dp->s_flags, np->flags);
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if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode))
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if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0)
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(void)printf("%3d, 0x%08x ",
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major(sp->st_rdev),
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(u_int)minor(sp->st_rdev));
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else
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(void)printf("%3d, %3d ",
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major(sp->st_rdev), minor(sp->st_rdev));
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else if (dp->bcfile)
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(void)printf("%*s%*qd ",
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8 - dp->s_size, "", dp->s_size, sp->st_size);
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else
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(void)printf("%*qd ", dp->s_size, sp->st_size);
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if (f_accesstime)
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printtime(sp->st_atime);
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else if (f_statustime)
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printtime(sp->st_ctime);
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else
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printtime(sp->st_mtime);
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#ifdef COLORLS
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if (f_color)
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color_printed = colortype(sp->st_mode);
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#endif
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if (f_octal || f_octal_escape) (void)prn_octal(p->fts_name);
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else (void)printf("%s", p->fts_name);
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#ifdef COLORLS
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if (f_color && color_printed)
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endcolor(0);
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#endif
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if (f_type)
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(void)printtype(sp->st_mode);
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if (S_ISLNK(sp->st_mode))
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printlink(p);
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(void)putchar('\n');
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}
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}
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void
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printcol(dp)
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DISPLAY *dp;
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{
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extern int termwidth;
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static FTSENT **array;
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static int lastentries = -1;
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FTSENT *p;
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int base, chcnt, cnt, col, colwidth, num;
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int endcol, numcols, numrows, row;
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int tabwidth;
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if (f_notabs)
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tabwidth = 1;
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else
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tabwidth = 8;
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/*
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* Have to do random access in the linked list -- build a table
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* of pointers.
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*/
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if (dp->entries > lastentries) {
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lastentries = dp->entries;
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if ((array =
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realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) {
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warn(NULL);
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printscol(dp);
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}
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}
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for (p = dp->list, num = 0; p; p = p->fts_link)
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if (p->fts_number != NO_PRINT)
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array[num++] = p;
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colwidth = dp->maxlen;
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if (f_inode)
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colwidth += dp->s_inode + 1;
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if (f_size)
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colwidth += dp->s_block + 1;
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if (f_type)
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colwidth += 1;
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colwidth = (colwidth + tabwidth) & ~(tabwidth - 1);
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if (termwidth < 2 * colwidth) {
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printscol(dp);
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return;
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}
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numcols = termwidth / colwidth;
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numrows = num / numcols;
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if (num % numcols)
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++numrows;
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if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
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(void)printf("total %lu\n", howmany(dp->btotal, blocksize));
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for (row = 0; row < numrows; ++row) {
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endcol = colwidth;
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for (base = row, chcnt = col = 0; col < numcols; ++col) {
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chcnt += printaname(array[base], dp->s_inode,
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dp->s_block);
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if ((base += numrows) >= num)
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break;
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#ifdef COLORLS
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/*
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* some terminals get confused if we mix tabs
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* with color sequences
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*/
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if (f_color)
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while ((cnt = (chcnt + 1)) <= endcol) {
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(void)putchar(' ');
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chcnt = cnt;
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}
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else
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#endif
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while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1)))
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<= endcol){
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(void)putchar(f_notabs ? ' ' : '\t');
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chcnt = cnt;
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}
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endcol += colwidth;
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}
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(void)putchar('\n');
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}
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}
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/*
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* print [inode] [size] name
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* return # of characters printed, no trailing characters.
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*/
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static int
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printaname(p, inodefield, sizefield)
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FTSENT *p;
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u_long sizefield, inodefield;
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{
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struct stat *sp;
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int chcnt;
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#ifdef COLORLS
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int color_printed = 0;
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#endif
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sp = p->fts_statp;
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chcnt = 0;
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if (f_inode)
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chcnt += printf("%*lu ", (int)inodefield, (u_long)sp->st_ino);
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if (f_size)
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chcnt += printf("%*qd ",
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(int)sizefield, howmany(sp->st_blocks, blocksize));
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#ifdef COLORLS
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if (f_color)
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color_printed = colortype(sp->st_mode);
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#endif
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chcnt += (f_octal || f_octal_escape) ? prn_octal(p->fts_name)
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: printf("%s", p->fts_name);
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#ifdef COLORLS
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if (f_color && color_printed)
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endcolor(0);
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#endif
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if (f_type)
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chcnt += printtype(sp->st_mode);
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return (chcnt);
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}
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static void
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printtime(ftime)
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time_t ftime;
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{
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int i;
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char longstring[80];
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static time_t now;
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if (now == 0)
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now = time(NULL);
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strftime(longstring, sizeof(longstring), "%c", localtime(&ftime));
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for (i = 4; i < 11; ++i)
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(void)putchar(longstring[i]);
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#define SIXMONTHS ((365 / 2) * 86400)
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if (f_sectime)
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for (i = 11; i < 24; i++)
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(void)putchar(longstring[i]);
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else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS)
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for (i = 11; i < 16; ++i)
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(void)putchar(longstring[i]);
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else {
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(void)putchar(' ');
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for (i = 20; i < 24; ++i)
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(void)putchar(longstring[i]);
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}
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(void)putchar(' ');
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}
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static int
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printtype(mode)
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u_int mode;
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{
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switch (mode & S_IFMT) {
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case S_IFDIR:
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(void)putchar('/');
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return (1);
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case S_IFIFO:
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(void)putchar('|');
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return (1);
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case S_IFLNK:
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(void)putchar('@');
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return (1);
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case S_IFSOCK:
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(void)putchar('=');
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return (1);
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case S_IFWHT:
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(void)putchar('%');
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return (1);
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}
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if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
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(void)putchar('*');
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return (1);
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}
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return (0);
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}
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#ifdef COLORLS
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static int
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putch(c)
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int c;
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{
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(void) putchar(c);
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return 0;
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}
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static int
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writech(c)
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int c;
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{
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char tmp = c;
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(void) write(STDOUT_FILENO, &tmp, 1);
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return 0;
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}
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static void
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printcolor(c)
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Colors c;
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{
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char *ansiseq;
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if (colors[c][0] != -1) {
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ansiseq = tgoto(ansi_fgcol, 0, colors[c][0]);
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if (ansiseq)
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tputs(ansiseq, 1, putch);
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}
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if (colors[c][1] != -1) {
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ansiseq = tgoto(ansi_bgcol, 0, colors[c][1]);
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if (ansiseq)
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tputs(ansiseq, 1, putch);
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}
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}
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static void
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endcolor(sig)
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int sig;
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{
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tputs(ansi_coloff, 1, sig ? writech : putch);
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}
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static int
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colortype(mode)
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mode_t mode;
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{
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switch(mode & S_IFMT) {
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case S_IFDIR:
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if (mode & S_IWOTH)
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if (mode & S_ISTXT)
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printcolor(C_WSDIR);
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else
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printcolor(C_WDIR);
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else
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printcolor(C_DIR);
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return(1);
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case S_IFLNK:
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printcolor(C_LNK);
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return(1);
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case S_IFSOCK:
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printcolor(C_SOCK);
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return(1);
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case S_IFIFO:
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printcolor(C_FIFO);
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return(1);
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case S_IFBLK:
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printcolor(C_BLK);
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return(1);
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case S_IFCHR:
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printcolor(C_CHR);
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return(1);
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}
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if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
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if (mode & S_ISUID)
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printcolor(C_SUID);
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else if (mode & S_ISGID)
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printcolor(C_SGID);
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else
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printcolor(C_EXEC);
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return(1);
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}
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return(0);
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}
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void
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parsecolors(cs)
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char *cs;
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{
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int i, j, len;
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char c[2];
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if (cs == NULL) cs = ""; /* LSCOLORS not set */
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len = strlen(cs);
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for (i = 0 ; i < C_NUMCOLORS ; i++) {
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if (len <= 2*i) {
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c[0] = defcolors[2*i];
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c[1] = defcolors[2*i+1];
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}
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else {
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c[0] = cs[2*i];
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c[1] = cs[2*i+1];
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}
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for (j = 0 ; j < 2 ; j++) {
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if ((c[j] < '0' || c[j] > '7') &&
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tolower((unsigned char)c[j]) != 'x') {
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fprintf(stderr,
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"error: invalid character '%c' in LSCOLORS env var\n",
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c[j]);
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c[j] = defcolors[2*i+j];
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}
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if (tolower((unsigned char)c[j]) == 'x')
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colors[i][j] = -1;
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else
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colors[i][j] = c[j]-'0';
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}
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}
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}
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void
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colorquit(sig)
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int sig;
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{
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endcolor(sig);
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(void) signal(sig, SIG_DFL);
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(void) kill(getpid(), sig);
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}
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#endif /*COLORLS*/
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static void
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printlink(p)
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FTSENT *p;
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{
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int lnklen;
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char name[MAXPATHLEN + 1], path[MAXPATHLEN + 1];
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if (p->fts_level == FTS_ROOTLEVEL)
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(void)snprintf(name, sizeof(name), "%s", p->fts_name);
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else
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(void)snprintf(name, sizeof(name),
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"%s/%s", p->fts_parent->fts_accpath, p->fts_name);
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if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) {
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(void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno));
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return;
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}
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path[lnklen] = '\0';
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if (f_octal || f_octal_escape) {
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(void)printf(" -> ");
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(void)prn_octal(path);
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}
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else (void)printf(" -> %s", path);
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}
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