/* $OpenBSD: print.c,v 1.35 2015/12/01 18:36:13 schwarze Exp $ */ /* $NetBSD: print.c,v 1.15 1996/12/11 03:25:39 thorpej Exp $ */ /* * Copyright (c) 1989, 1993, 1994 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Michael Fischbein. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ls.h" #include "extern.h" static int printaname(FTSENT *, u_long, u_long); static void printlink(FTSENT *); static void printsize(size_t, off_t); static void printtime(time_t); static int printtype(u_int); static int compute_columns(DISPLAY *, int *); #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) #define DATELEN 64 #define SECSPERDAY (24 * 60 * 60) #define SIXMONTHS (SECSPERDAY * 365 / 2) void printscol(DISPLAY *dp) { FTSENT *p; for (p = dp->list; p; p = p->fts_link) { if (IS_NOPRINT(p)) continue; (void)printaname(p, dp->s_inode, dp->s_block); (void)putchar('\n'); } } void printlong(DISPLAY *dp) { struct stat *sp; FTSENT *p; NAMES *np; char buf[20]; if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) (void)printf("total %llu\n", howmany(dp->btotal, blocksize)); for (p = dp->list; p; p = p->fts_link) { if (IS_NOPRINT(p)) continue; sp = p->fts_statp; if (f_inode) (void)printf("%*llu ", dp->s_inode, (unsigned long long)sp->st_ino); if (f_size) (void)printf("%*qd ", dp->s_block, howmany(sp->st_blocks, blocksize)); (void)strmode(sp->st_mode, buf); np = p->fts_pointer; (void)printf("%s %*u ", buf, dp->s_nlink, sp->st_nlink); if (!f_grouponly) (void)printf("%-*s ", dp->s_user, np->user); (void)printf("%-*s ", dp->s_group, np->group); if (f_flags) (void)printf("%-*s ", dp->s_flags, np->flags); if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) (void)printf("%3d, %3d ", major(sp->st_rdev), minor(sp->st_rdev)); else if (dp->bcfile) (void)printf("%*s%*qd ", 8 - dp->s_size, "", dp->s_size, sp->st_size); else printsize(dp->s_size, sp->st_size); if (f_accesstime) printtime(sp->st_atime); else if (f_statustime) printtime(sp->st_ctime); else printtime(sp->st_mtime); (void)mbsprint(p->fts_name, 1); if (f_type || (f_typedir && S_ISDIR(sp->st_mode))) (void)printtype(sp->st_mode); if (S_ISLNK(sp->st_mode)) printlink(p); (void)putchar('\n'); } } static int compute_columns(DISPLAY *dp, int *pnum) { int colwidth; extern int termwidth; int mywidth; colwidth = dp->maxlen; if (f_inode) colwidth += dp->s_inode + 1; if (f_size) colwidth += dp->s_block + 1; if (f_type || f_typedir) colwidth += 1; colwidth += 1; mywidth = termwidth + 1; /* no extra space for last column */ if (mywidth < 2 * colwidth) { printscol(dp); return (0); } *pnum = mywidth / colwidth; return (mywidth / *pnum); /* spread out if possible */ } void printcol(DISPLAY *dp) { static FTSENT **array; static int lastentries = -1; FTSENT *p; int base, chcnt, col, colwidth, num; int numcols, numrows, row; if ((colwidth = compute_columns(dp, &numcols)) == 0) return; /* * Have to do random access in the linked list -- build a table * of pointers. */ if (dp->entries > lastentries) { FTSENT **a; if ((a = reallocarray(array, dp->entries, sizeof(FTSENT *))) == NULL) { free(array); array = NULL; dp->entries = 0; lastentries = -1; warn(NULL); printscol(dp); return; } lastentries = dp->entries; array = a; } for (p = dp->list, num = 0; p; p = p->fts_link) if (p->fts_number != NO_PRINT) array[num++] = p; numrows = num / numcols; if (num % numcols) ++numrows; if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) (void)printf("total %llu\n", howmany(dp->btotal, blocksize)); for (row = 0; row < numrows; ++row) { for (base = row, col = 0;;) { chcnt = printaname(array[base], dp->s_inode, dp->s_block); if ((base += numrows) >= num) break; if (++col == numcols) break; while (chcnt++ < colwidth) putchar(' '); } (void)putchar('\n'); } } /* * print [inode] [size] name * return # of characters printed, no trailing characters. */ static int printaname(FTSENT *p, u_long inodefield, u_long sizefield) { struct stat *sp; int chcnt; sp = p->fts_statp; chcnt = 0; if (f_inode) chcnt += printf("%*llu ", (int)inodefield, (unsigned long long)sp->st_ino); if (f_size) chcnt += printf("%*qd ", (int)sizefield, howmany(sp->st_blocks, blocksize)); chcnt += mbsprint(p->fts_name, 1); if (f_type || (f_typedir && S_ISDIR(sp->st_mode))) chcnt += printtype(sp->st_mode); return (chcnt); } static void printtime(time_t ftime) { char f_date[DATELEN]; static time_t now; static int now_set = 0; if (! now_set) { now = time(NULL); now_set = 1; } /* * convert time to string, and print */ if (strftime(f_date, sizeof(f_date), f_sectime ? "%b %e %H:%M:%S %Y" : (ftime <= now - SIXMONTHS || ftime > now) ? "%b %e %Y" : "%b %e %H:%M", localtime(&ftime)) == 0) f_date[0] = '\0'; printf("%s ", f_date); } void printacol(DISPLAY *dp) { FTSENT *p; int chcnt, col, colwidth; int numcols; if ( (colwidth = compute_columns(dp, &numcols)) == 0) return; if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) (void)printf("total %llu\n", howmany(dp->btotal, blocksize)); col = 0; for (p = dp->list; p; p = p->fts_link) { if (IS_NOPRINT(p)) continue; if (col >= numcols) { col = 0; (void)putchar('\n'); } chcnt = printaname(p, dp->s_inode, dp->s_block); col++; if (col < numcols) while (chcnt++ < colwidth) (void)putchar(' '); } (void)putchar('\n'); } void printstream(DISPLAY *dp) { extern int termwidth; FTSENT *p; int col; int extwidth; extwidth = 0; if (f_inode) extwidth += dp->s_inode + 1; if (f_size) extwidth += dp->s_block + 1; if (f_type) extwidth += 1; for (col = 0, p = dp->list; p != NULL; p = p->fts_link) { if (IS_NOPRINT(p)) continue; if (col > 0) { (void)putchar(','), col++; if (col + 1 + extwidth + mbsprint(p->fts_name, 0) >= termwidth) (void)putchar('\n'), col = 0; else (void)putchar(' '), col++; } col += printaname(p, dp->s_inode, dp->s_block); } (void)putchar('\n'); } static int printtype(u_int mode) { switch (mode & S_IFMT) { case S_IFDIR: (void)putchar('/'); return (1); case S_IFIFO: (void)putchar('|'); return (1); case S_IFLNK: (void)putchar('@'); return (1); case S_IFSOCK: (void)putchar('='); return (1); } if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { (void)putchar('*'); return (1); } return (0); } static void printlink(FTSENT *p) { int lnklen; char name[PATH_MAX], path[PATH_MAX]; if (p->fts_level == FTS_ROOTLEVEL) (void)snprintf(name, sizeof(name), "%s", p->fts_name); else (void)snprintf(name, sizeof(name), "%s/%s", p->fts_parent->fts_accpath, p->fts_name); if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); return; } path[lnklen] = '\0'; (void)printf(" -> "); (void)mbsprint(path, 1); } static void printsize(size_t width, off_t bytes) { char ret[FMT_SCALED_STRSIZE]; if ((f_humanval) && (fmt_scaled(bytes, ret) != -1)) { (void)printf("%*s ", (u_int)width, ret); return; } (void)printf("%*qd ", (u_int)width, bytes); }