diff options
Diffstat (limited to 'cpukit/libmisc/shell/print-ls.c')
-rw-r--r-- | cpukit/libmisc/shell/print-ls.c | 492 |
1 files changed, 492 insertions, 0 deletions
diff --git a/cpukit/libmisc/shell/print-ls.c b/cpukit/libmisc/shell/print-ls.c new file mode 100644 index 0000000000..c19ce9009c --- /dev/null +++ b/cpukit/libmisc/shell/print-ls.c @@ -0,0 +1,492 @@ +/* $NetBSD: print.c,v 1.40 2004/11/17 17:00:00 mycroft 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. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#if 0 +#include <sys/cdefs.h> +#ifndef lint +#if 0 +static char sccsid[] = "@(#)print.c 8.5 (Berkeley) 7/28/94"; +#else +__RCSID("$NetBSD: print.c,v 1.40 2004/11/17 17:00:00 mycroft Exp $"); +#endif +#endif /* not lint */ +#endif + +#include <inttypes.h> + +#include <rtems.h> +#include <rtems/libio.h> + +#include <sys/param.h> +#include <sys/stat.h> + +#include <err.h> +#include <errno.h> +#include <fts.h> +#include <grp.h> +#include <pwd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +//#include <tzfile.h> +#include <unistd.h> +//#include <util.h> + +#include "extern-ls.h" + +#define DAYSPERNYEAR ((time_t)365) +#define SECSPERDAY ((time_t)60 * (time_t)60 * (time_t)24) + + +#if RTEMS_REMOVED +extern int termwidth; +#endif + +static int printaname(rtems_shell_ls_globals* globals, FTSENT *, int, int); +static void printlink(rtems_shell_ls_globals* globals, FTSENT *); +static void printtime(rtems_shell_ls_globals* globals, time_t); +static int printtype(u_int); + +#if RTEMS_REMOVED +static time_t now; +#endif + +#define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) + +void +printscol(rtems_shell_ls_globals* globals, DISPLAY *dp) +{ + FTSENT *p; + + for (p = dp->list; p; p = p->fts_link) { + if (IS_NOPRINT(p)) + continue; + (void)printaname(globals, p, dp->s_inode, dp->s_block); + (void)putchar('\n'); + } +} + +void +printlong(rtems_shell_ls_globals* globals, DISPLAY *dp) +{ + struct stat *sp; + FTSENT *p; + NAMES *np; + char buf[20]; //, szbuf[5]; + + now = time(NULL); + + if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) { +#if RTEMS_REMOVED + if (f_humanize) { + if ((humanize_number(szbuf, sizeof(szbuf), dp->stotal, + "", HN_AUTOSCALE, + (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) + err(exit_jump, 1, "humanize_number"); + (void)printf("total %s\n", szbuf); + } else { +#endif + (void)printf("total %llu\n", + (long long)(howmany(dp->btotal, blocksize))); +#if RTEMS_REMOVED + } +#endif + } + + for (p = dp->list; p; p = p->fts_link) { + if (IS_NOPRINT(p)) + continue; + sp = p->fts_statp; + if (f_inode) + (void)printf("%*lu ", dp->s_inode, sp->st_ino); + if (f_size && !f_humanize) { + (void)printf("%*llu ", dp->s_block, + (long long)howmany(sp->st_blocks, blocksize)); + } + (void)strmode(sp->st_mode, buf); + np = p->fts_pointer; + (void)printf("%s %*lu ", buf, dp->s_nlink, + (unsigned long)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("%*"PRIu32", %*"PRIu32" ", + dp->s_major, major(sp->st_rdev), dp->s_minor, + minor(sp->st_rdev)); + else +#if RTEMS_REMOVED + if (f_humanize) { + if ((humanize_number(szbuf, sizeof(szbuf), + sp->st_size, "", HN_AUTOSCALE, + (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) + err(1, "humanize_number"); + (void)printf("%*s ", dp->s_size, szbuf); + } else { +#endif + { + unsigned long long size; + if (sp->st_size < 0) + size = sp->st_size * -1; + else + size = sp->st_size; + (void)printf("%*llu ", dp->s_size, size); + } + if (f_accesstime) + printtime(globals, sp->st_atime); + else if (f_statustime) + printtime(globals, sp->st_ctime); + else + printtime(globals, sp->st_mtime); + if (f_octal || f_octal_escape) + (void)safe_print(globals, p->fts_name); + else if (f_nonprint) + (void)printescaped(globals, p->fts_name); + else + (void)printf("%s", p->fts_name); + + if (f_type || (f_typedir && S_ISDIR(sp->st_mode))) + (void)printtype(sp->st_mode); + if (S_ISLNK(sp->st_mode)) + printlink(globals, p); + (void)putchar('\n'); + } +} + +void +printcol(rtems_shell_ls_globals* globals, DISPLAY *dp) +{ + static FTSENT **array; + static int lastentries = -1; + FTSENT *p; + int base, chcnt, col, colwidth, num; + int numcols, numrows, row; + //char szbuf[5]; + + colwidth = dp->maxlen; + if (f_inode) + colwidth += dp->s_inode + 1; + if (f_size) { + if (f_humanize) + colwidth += dp->s_size + 1; + else + colwidth += dp->s_block + 1; + } + if (f_type || f_typedir) + colwidth += 1; + + colwidth += 1; + + if (termwidth < 2 * colwidth) { + printscol(globals, dp); + return; + } + + /* + * Have to do random access in the linked list -- build a table + * of pointers. + */ + if (dp->entries > lastentries) { + lastentries = dp->entries; + if ((array = + realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { + warn(NULL); + printscol(globals, dp); + } + } + for (p = dp->list, num = 0; p; p = p->fts_link) + if (p->fts_number != NO_PRINT) + array[num++] = p; + + numcols = termwidth / colwidth; + colwidth = termwidth / numcols; /* spread out if possible */ + numrows = num / numcols; + if (num % numcols) + ++numrows; + + if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) { +#if RTEMS_REMOVED + if (f_humanize) { + if ((humanize_number(szbuf, sizeof(szbuf), dp->stotal, + "", HN_AUTOSCALE, + (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) + err(1, "humanize_number"); + (void)printf("total %s\n", szbuf); + } else { +#endif + (void)printf("total %llu\n", + (long long)(howmany(dp->btotal, blocksize))); +#if RTEMS_REMOVED + } +#endif + } + for (row = 0; row < numrows; ++row) { + for (base = row, chcnt = col = 0; col < numcols; ++col) { + chcnt = printaname(globals, array[base], dp->s_inode, + f_humanize && 0 ? dp->s_size : dp->s_block); + if ((base += numrows) >= num) + break; + while (chcnt++ < colwidth) + (void)putchar(' '); + } + (void)putchar('\n'); + } +} + +void +printacol(rtems_shell_ls_globals* globals, DISPLAY *dp) +{ + FTSENT *p; + int chcnt, col, colwidth; + int numcols; + //char szbuf[5]; + + colwidth = dp->maxlen; + if (f_inode) + colwidth += dp->s_inode + 1; + if (f_size) { + if (f_humanize) + colwidth += dp->s_size + 1; + else + colwidth += dp->s_block + 1; + } + if (f_type || f_typedir) + colwidth += 1; + + colwidth += 1; + + if (termwidth < 2 * colwidth) { + printscol(globals, dp); + return; + } + + numcols = termwidth / colwidth; + colwidth = termwidth / numcols; /* spread out if possible */ + + if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) { +#if RTEMS_REMOVED + if (f_humanize) { + if ((humanize_number(szbuf, sizeof(szbuf), dp->stotal, + "", HN_AUTOSCALE, + (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) + err(1, "humanize_number"); + (void)printf("total %s\n", szbuf); + } else { +#endif + (void)printf("total %llu\n", + (long long)(howmany(dp->btotal, blocksize))); +#if RTEMS_REMOVED + } +#endif + } + chcnt = col = 0; + for (p = dp->list; p; p = p->fts_link) { + if (IS_NOPRINT(p)) + continue; + if (col >= numcols) { + chcnt = col = 0; + (void)putchar('\n'); + } + chcnt = printaname(globals, p, dp->s_inode, + f_humanize && 0 ? dp->s_size : dp->s_block); + while (chcnt++ < colwidth) + (void)putchar(' '); + col++; + } + (void)putchar('\n'); +} + +void +printstream(rtems_shell_ls_globals* globals, DISPLAY *dp) +{ + FTSENT *p; + int col; + int extwidth; + + extwidth = 0; + if (f_inode) + extwidth += dp->s_inode + 1; + if (f_size) { + if (f_humanize) + extwidth += dp->s_size + 1; + else + 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 + p->fts_namelen >= termwidth) + (void)putchar('\n'), col = 0; + else + (void)putchar(' '), col++; + } + col += printaname(globals, p, dp->s_inode, + f_humanize && 0 ? dp->s_size : dp->s_block); + } + (void)putchar('\n'); +} + +/* + * print [inode] [size] name + * return # of characters printed, no trailing characters. + */ +static int +printaname(rtems_shell_ls_globals* globals, + FTSENT *p, int inodefield, int sizefield) +{ + struct stat *sp; + int chcnt; + //char szbuf[5]; + + sp = p->fts_statp; + chcnt = 0; + if (f_inode) + chcnt += printf("%*lu ", inodefield, sp->st_ino); + if (f_size) { +#if RTEMS_REMOVED + if (f_humanize) { + if ((humanize_number(szbuf, sizeof(szbuf), sp->st_size, + "", HN_AUTOSCALE, + (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) + err(1, "humanize_number"); + chcnt += printf("%*s ", sizefield, szbuf); + } else { +#endif + chcnt += printf("%*llu ", sizefield, + (long long)howmany(sp->st_blocks, blocksize)); +#if RTEMS_REMOVED + } +#endif + } + if (f_octal || f_octal_escape) + chcnt += safe_print(globals, p->fts_name); + else if (f_nonprint) + chcnt += printescaped(globals, p->fts_name); + else + chcnt += printf("%s", p->fts_name); + if (f_type || (f_typedir && S_ISDIR(sp->st_mode))) + chcnt += printtype(sp->st_mode); + return (chcnt); +} + +static void +printtime(rtems_shell_ls_globals* globals, time_t ftime) +{ + int i; + char *longstring; + + longstring = ctime(&ftime); + for (i = 4; i < 11; ++i) + (void)putchar(longstring[i]); + +#define SIXMONTHS ((DAYSPERNYEAR / 2) * SECSPERDAY) + if (f_sectime) + for (i = 11; i < 24; i++) + (void)putchar(longstring[i]); + else if (ftime + SIXMONTHS > now && ftime - SIXMONTHS < now) + for (i = 11; i < 16; ++i) + (void)putchar(longstring[i]); + else { + (void)putchar(' '); + for (i = 20; i < 24; ++i) + (void)putchar(longstring[i]); + } + (void)putchar(' '); +} + +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 RTEMS_REMOVED + case S_IFWHT: + (void)putchar('%'); + return (1); +#endif + } + if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { + (void)putchar('*'); + return (1); + } + return (0); +} + +static void +printlink(rtems_shell_ls_globals* globals, FTSENT *p) +{ + int lnklen; + char name[MAXPATHLEN + 1], path[MAXPATHLEN + 1]; + + 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(" -> "); + if (f_octal || f_octal_escape) + (void)safe_print(globals, path); + else if (f_nonprint) + (void)printescaped(globals, path); + else + (void)printf("%s", path); +} |