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/* $OpenBSD: print.c,v 1.37 2016/08/16 16:09:24 krw Exp $ */ |
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/* $NetBSD: print.c,v 1.15 1996/12/11 03:25:39 thorpej Exp $ */ |
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/* |
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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. 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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#include <sys/types.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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#include <limits.h> |
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#include <util.h> |
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#include "ls.h" |
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#include "extern.h" |
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static int printaname(FTSENT *, int, int); |
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static void printlink(FTSENT *); |
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static void printsize(int, off_t); |
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static void printtime(time_t); |
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static int printtype(mode_t); |
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static int compute_columns(DISPLAY *, int *); |
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#define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) |
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#define DATELEN 64 |
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#define SECSPERDAY (24 * 60 * 60) |
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#define SIXMONTHS (SECSPERDAY * 365 / 2) |
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void |
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printscol(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(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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if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) |
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(void)printf("total %llu\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("%*llu ", dp->s_inode, |
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(unsigned long long)sp->st_ino); |
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if (f_size) |
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(void)printf("%*lld ", dp->s_block, |
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howmany((long long)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 ", buf, dp->s_nlink, sp->st_nlink); |
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if (!f_grouponly) |
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(void)printf("%-*s ", dp->s_user, np->user); |
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(void)printf("%-*s ", dp->s_group, 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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(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%*lld ", |
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8 - dp->s_size, "", dp->s_size, |
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(long long)sp->st_size); |
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else |
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printsize(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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(void)mbsprint(p->fts_name, 1); |
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if (f_type || (f_typedir && S_ISDIR(sp->st_mode))) |
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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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static int |
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compute_columns(DISPLAY *dp, int *pnum) |
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{ |
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int colwidth; |
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extern int termwidth; |
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int mywidth; |
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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 || f_typedir) |
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colwidth += 1; |
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colwidth += 1; |
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mywidth = termwidth + 1; /* no extra space for last column */ |
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if (mywidth < 2 * colwidth) { |
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printscol(dp); |
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return (0); |
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} |
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*pnum = mywidth / colwidth; |
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return (mywidth / *pnum); /* spread out if possible */ |
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} |
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void |
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printcol(DISPLAY *dp) |
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{ |
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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, col, colwidth, num; |
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int numcols, numrows, row; |
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if ((colwidth = compute_columns(dp, &numcols)) == 0) |
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return; |
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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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FTSENT **a; |
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if ((a = reallocarray(array, dp->entries, sizeof(FTSENT *))) == |
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NULL) { |
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free(array); |
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array = NULL; |
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dp->entries = 0; |
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lastentries = -1; |
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warn(NULL); |
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printscol(dp); |
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return; |
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} |
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lastentries = dp->entries; |
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array = a; |
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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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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 %llu\n", howmany(dp->btotal, blocksize)); |
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for (row = 0; row < numrows; ++row) { |
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for (base = row, col = 0;;) { |
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chcnt = printaname(array[base], dp->s_inode, dp->s_block); |
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if ((base += numrows) >= num) |
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break; |
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if (++col == numcols) |
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break; |
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while (chcnt++ < colwidth) |
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putchar(' '); |
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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(FTSENT *p, int inodefield, int sizefield) |
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{ |
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struct stat *sp; |
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int chcnt; |
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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("%*llu ", inodefield, |
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(unsigned long long)sp->st_ino); |
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if (f_size) |
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chcnt += printf("%*lld ", sizefield, |
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howmany((long long)sp->st_blocks, blocksize)); |
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chcnt += mbsprint(p->fts_name, 1); |
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if (f_type || (f_typedir && S_ISDIR(sp->st_mode))) |
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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(time_t ftime) |
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{ |
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char f_date[DATELEN]; |
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static time_t now; |
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static int now_set = 0; |
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if (! now_set) { |
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now = time(NULL); |
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now_set = 1; |
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} |
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/* |
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* convert time to string, and print |
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*/ |
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if (strftime(f_date, sizeof(f_date), f_sectime ? "%b %e %H:%M:%S %Y" : |
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(ftime <= now - SIXMONTHS || ftime > now) ? "%b %e %Y" : |
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"%b %e %H:%M", localtime(&ftime)) == 0) |
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f_date[0] = '\0'; |
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printf("%s ", f_date); |
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} |
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void |
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printacol(DISPLAY *dp) |
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{ |
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FTSENT *p; |
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int chcnt, col, colwidth; |
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int numcols; |
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if ( (colwidth = compute_columns(dp, &numcols)) == 0) |
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return; |
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if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) |
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(void)printf("total %llu\n", howmany(dp->btotal, blocksize)); |
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col = 0; |
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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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if (col >= numcols) { |
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col = 0; |
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(void)putchar('\n'); |
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} |
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chcnt = printaname(p, dp->s_inode, dp->s_block); |
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col++; |
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if (col < numcols) |
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while (chcnt++ < colwidth) |
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(void)putchar(' '); |
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} |
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(void)putchar('\n'); |
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} |
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void |
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printstream(DISPLAY *dp) |
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{ |
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extern int termwidth; |
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FTSENT *p; |
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int col; |
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int extwidth; |
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extwidth = 0; |
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if (f_inode) |
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extwidth += dp->s_inode + 1; |
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if (f_size) |
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extwidth += dp->s_block + 1; |
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if (f_type) |
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extwidth += 1; |
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for (col = 0, p = dp->list; p != NULL; p = p->fts_link) { |
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if (IS_NOPRINT(p)) |
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continue; |
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if (col > 0) { |
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(void)putchar(','), col++; |
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if (col + 1 + extwidth + mbsprint(p->fts_name, 0) >= |
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termwidth) |
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(void)putchar('\n'), col = 0; |
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else |
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(void)putchar(' '), col++; |
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} |
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col += printaname(p, dp->s_inode, dp->s_block); |
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} |
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(void)putchar('\n'); |
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} |
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static int |
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printtype(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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(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); |
341 |
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} |
342 |
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if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { |
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(void)putchar('*'); |
344 |
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return (1); |
345 |
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} |
346 |
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return (0); |
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} |
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|
349 |
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static void |
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printlink(FTSENT *p) |
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{ |
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int lnklen; |
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char name[PATH_MAX], path[PATH_MAX]; |
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355 |
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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; |
363 |
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} |
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path[lnklen] = '\0'; |
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(void)printf(" -> "); |
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(void)mbsprint(path, 1); |
367 |
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} |
368 |
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static void |
370 |
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printsize(int width, off_t bytes) |
371 |
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{ |
372 |
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char ret[FMT_SCALED_STRSIZE]; |
373 |
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374 |
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if ((f_humanval) && (fmt_scaled(bytes, ret) != -1)) { |
375 |
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(void)printf("%*s ", width, ret); |
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return; |
377 |
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} |
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(void)printf("%*lld ", width, (long long)bytes); |
379 |
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} |