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/** 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. * 4. 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. */ #ifndef lint static const char copyright[] = "@(#) Copyright (c) 1989, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #if 0 #ifndef lint static char sccsid[] = "@(#)ls.c 8.5 (Berkeley) 4/2/94"; #endif /* not lint */ #endif #include <sys/cdefs.h> __FBSDID("$FreeBSD: src/bin/ls/ls.c,v 1.99.2.2 2013/03/28 13:00:05 svnexp Exp $"); #include <sys/types.h>


#include <sys/stat.h> #include <sys/ioctl.h> #include <sys/mac.h> #include <dirent.h> #include <err.h> #include <errno.h> #include <fts.h> #include <grp.h> #include <inttypes.h> #include <limits.h> #include <locale.h> #include <pwd.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #ifdef COLORLS #include <termcap.h> #include <signal.h> #endif #include "ls.h" #include "extern.h" /* * Upward approximation of the maximum number of characters needed to * represent a value of integral type t as a string, excluding the * NUL terminator, with provision for a sign. */ #define STRBUF_SIZEOF(t)(1 + CHAR_BIT * sizeof(t) / 3 + 1) /* * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width * into a number that wide in decimal. * XXX: Overflows are not considered. */ #define MAKENINES(n) \ do { \ intmax_t i; \ \ /* Use a loop as all values of n are small. */ \ for (i = 1; n > 0; i *= 10) \ n--; \ n = i - 1; \ } while(0)


static void display(const FTSENT *, FTSENT *, int); static int mastercmp(const FTSENT * const *, const FTSENT * const *); static void traverse(int, char **, int); static void (*printfcn)(const DISPLAY *); static int (*sortfcn)(const FTSENT *, const FTSENT *); long blocksize; int termwidth = 80;

/* block size units */ /* default terminal width */

/* flags */ int f_accesstime; /* int f_birthtime; int f_flags; /* int f_humanval; int f_inode; /* static int f_kblocks; /* static int f_listdir; /* static int f_listdot; /* static int f_noautodot; int f_longform; static int f_nofollow; int f_nonprint; static int f_nosort; /* int f_notabs; static int f_numericonly; /* int f_octal; /* int f_octal_escape; static int f_recursive; static int f_reversesort; /* int f_sectime; static int f_singlecol; int f_size; /* int f_slash; /* int f_sortacross; /* int f_statustime; /* static int f_stream; /* static int f_timesort; char *f_timeformat; static int f_sizesort; int f_type; /* static int f_whiteout; int f_label; /* #ifdef COLORLS int f_color; /*

use time of last access */ /* use time of birth */ show flags associated with a file */ /* show human-readable file sizes */ print inode */ print size in kilobytes */ list actual directory, not contents */ list files beginning with . */ /* do not automatically enable -A for root */ /* long listing format */ /* don't follow symbolic link arguments */ /* show unprintables as ? */ don't sort output */ /* don't use tab-separated multi-col output */ don't convert uid/gid to name */ show unprintables as \xxx */ /* like f_octal but use C escapes if possible */ /* ls subdirectories also */ reverse whatever sort is used */ /* print the real time for all files */ /* use single column output */ list size in short listing */ similar to f_type, but only for dirs */ sort across rows, not down columns */ use time of last mode change */ stream the output, separate with commas */ /* sort by time vice name */ /* user-specified time format */ add type character for non-regular files */ /* show whiteout entries */ show MAC label */ add type in color for non-regular files */


char *ansi_bgcol; char *ansi_fgcol; char *ansi_coloff; char *attrs_off; char *enter_bold; #endif

/* /* /* /* /*

ANSI ANSI ANSI ANSI ANSI

sequence sequence sequence sequence sequence

to to to to to

set background colour */ set foreground colour */ reset colours */ turn off attributes */ set color to bold mode */

static int rval; int main(int argc, char *argv[]) { static char dot[] = ".", *dotav[] = {dot, NULL}; struct winsize win; int ch, fts_options, notused; char *p; #ifdef COLORLS char termcapbuf[1024]; /* termcap definition buffer */ char tcapbuf[512]; /* capability buffer */ char *bp = tcapbuf; #endif (void)setlocale(LC_ALL, ""); /* Terminal defaults to -Cq, non-terminal defaults to -1. */ if (isatty(STDOUT_FILENO)) { termwidth = 80; if ((p = getenv("COLUMNS")) != NULL && *p != '\0') termwidth = atoi(p); else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && win.ws_col > 0) termwidth = win.ws_col; f_nonprint = 1; } else { f_singlecol = 1; /* retrieve environment variable, in case of explicit -C */ p = getenv("COLUMNS"); if (p) termwidth = atoi(p); } fts_options = FTS_PHYSICAL; while ((ch = getopt(argc, argv, "1ABCD:FGHILPRSTUWZabcdfghiklmnopqrstuwx")) != -1) { switch (ch) { /* * The -1, -C, -x and -l options all override each other so


* shell aliasing works right. */ case '1': f_singlecol = 1; f_longform = 0; f_stream = 0; break; case 'B': f_nonprint = 0; f_octal = 1; f_octal_escape = 0; break; case 'C': f_sortacross = f_longform = f_singlecol = 0; break; case 'D': f_timeformat = optarg; break; case 'l': f_longform = 1; f_singlecol = 0; f_stream = 0; break; case 'x': f_sortacross = 1; f_longform = 0; f_singlecol = 0; break; /* The -c, -u, and -U options override each other. */ case 'c': f_statustime = 1; f_accesstime = 0; f_birthtime = 0; break; case 'u': f_accesstime = 1; f_statustime = 0; f_birthtime = 0; break; case 'U': f_birthtime = 1; f_accesstime = 0; f_statustime = 0; break; case 'F': f_type = 1; f_slash = 0;


break; case 'H': fts_options |= FTS_COMFOLLOW; f_nofollow = 0; break; case 'G': setenv("CLICOLOR", "", 1); break; case 'L': fts_options &= ~FTS_PHYSICAL; fts_options |= FTS_LOGICAL; f_nofollow = 0; break; case 'P': fts_options &= ~FTS_COMFOLLOW; fts_options &= ~FTS_LOGICAL; fts_options |= FTS_PHYSICAL; f_nofollow = 1; break; case 'R': f_recursive = 1; break; case 'a': fts_options |= FTS_SEEDOT; /* FALLTHROUGH */ case 'A': f_listdot = 1; break; case 'I': f_noautodot = 1; break; /* The -d option turns off the -R option. */ case 'd': f_listdir = 1; f_recursive = 0; break; case 'f': f_nosort = 1; break; case 'g': /* Compatibility with 4.3BSD. */ break; case 'h': f_humanval = 1; break; case 'i': f_inode = 1; break; case 'k':


f_humanval = 0; f_kblocks = 1; break; case 'm': f_stream = 1; f_singlecol = 0; f_longform = 0; break; case 'n': f_numericonly = 1; break; case 'o': f_flags = 1; break; case 'p': f_slash = 1; f_type = 1; break; case 'q': f_nonprint = 1; f_octal = 0; f_octal_escape = 0; break; case 'r': f_reversesort = 1; break; case 's': f_size = 1; break; case 'T': f_sectime = 1; break; /* The -t and -S options override each other. */ case 't': f_timesort = 1; f_sizesort = 0; break; case 'S': f_sizesort = 1; f_timesort = 0; break; case 'W': f_whiteout = 1; break; case 'b': f_nonprint = 0; f_octal = 0; f_octal_escape = 1;


break; case 'w': f_nonprint = 0; f_octal = 0; f_octal_escape = 0; break; case 'Z': f_label = 1; break; default: case '?': usage(); } } argc -= optind; argv += optind; /* Root is -A automatically unless -I. */ if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot) f_listdot = 1; /* Enabling of colours is conditional on the environment. */ if (getenv("CLICOLOR") && (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))) #ifdef COLORLS if (tgetent(termcapbuf, getenv("TERM")) == 1) { ansi_fgcol = tgetstr("AF", &bp); ansi_bgcol = tgetstr("AB", &bp); attrs_off = tgetstr("me", &bp); enter_bold = tgetstr("md", &bp); /* To switch colours off use 'op' if * available, otherwise use 'oc', or * don't do colours at all. */ ansi_coloff = tgetstr("op", &bp); if (!ansi_coloff) ansi_coloff = tgetstr("oc", &bp); if (ansi_fgcol && ansi_bgcol && ansi_coloff) f_color = 1; } #else warnx("color support not compiled in"); #endif /*COLORLS*/ #ifdef COLORLS if (f_color) { /* * We can't put tabs and color sequences together:


* column number will be incremented incorrectly * for "stty oxtabs" mode. */ f_notabs = 1; (void)signal(SIGINT, colorquit); (void)signal(SIGQUIT, colorquit); parsecolors(getenv("LSCOLORS")); } #endif /* * If not -F, -i, -l, -s, -S or -t options, don't require stat * information, unless in color mode in which case we do * need this to determine which colors to display. */ if (!f_inode && !f_longform && !f_size && !f_timesort && !f_sizesort && !f_type #ifdef COLORLS && !f_color #endif ) fts_options |= FTS_NOSTAT; /* * If not -F, -P, -d or -l options, follow any symbolic links listed on * the command line. */ if (!f_nofollow && !f_longform && !f_listdir && !f_type) fts_options |= FTS_COMFOLLOW; /* * If -W, show whiteout entries */ #ifdef FTS_WHITEOUT if (f_whiteout) fts_options |= FTS_WHITEOUT; #endif /* If -l or -s, figure out block size. */ if (f_longform || f_size) { if (f_kblocks) blocksize = 2; else { (void)getbsize(&notused, &blocksize); blocksize /= 512; } } /* Select a sort function. */


if (f_reversesort) { if (!f_timesort && !f_sizesort) sortfcn = revnamecmp; else if (f_sizesort) sortfcn = revsizecmp; else if (f_accesstime) sortfcn = revacccmp; else if (f_birthtime) sortfcn = revbirthcmp; else if (f_statustime) sortfcn = revstatcmp; else /* Use modification time. */ sortfcn = revmodcmp; } else { if (!f_timesort && !f_sizesort) sortfcn = namecmp; else if (f_sizesort) sortfcn = sizecmp; else if (f_accesstime) sortfcn = acccmp; else if (f_birthtime) sortfcn = birthcmp; else if (f_statustime) sortfcn = statcmp; else /* Use modification time. */ sortfcn = modcmp; } /* Select a print function. */ if (f_singlecol) printfcn = printscol; else if (f_longform) printfcn = printlong; else if (f_stream) printfcn = printstream; else printfcn = printcol; if (argc) traverse(argc, argv, fts_options); else traverse(1, dotav, fts_options); exit(rval); } static int output;

/* If anything output. */


/* * Traverse() walks the logical directory structure specified by the argv list * in the order specified by the mastercmp() comparison function. During the * traversal it passes linked lists of structures to display() which represent * a superset (may be exact set) of the files to be displayed. */ static void traverse(int argc, char *argv[], int options) { FTS *ftsp; FTSENT *p, *chp; int ch_options; if ((ftsp = fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) err(1, "fts_open"); /* * We ignore errors from fts_children here since they will be * replicated and signalled on the next call to fts_read() below. */ chp = fts_children(ftsp, 0); if (chp != NULL) display(NULL, chp, options); if (f_listdir) return; /* * If not recursing down this tree and don't need stat info, just get * the names. */ ch_options = !f_recursive && !f_label && options & FTS_NOSTAT ? FTS_NAMEONLY : 0; while ((p = fts_read(ftsp)) != NULL) switch (p->fts_info) { case FTS_DC: warnx("%s: directory causes a cycle", p->fts_name); break; case FTS_DNR: case FTS_ERR: warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); rval = 1; break; case FTS_D: if (p->fts_level != FTS_ROOTLEVEL && p->fts_name[0] == '.' && !f_listdot) break;


/* * If already output something, put out a newline as * a separator. If multiple arguments, precede each * directory with its name. */ if (output) { putchar('\n'); (void)printname(p->fts_path); puts(":"); } else if (argc > 1) { (void)printname(p->fts_path); puts(":"); output = 1; } chp = fts_children(ftsp, ch_options); display(p, chp, options); if (!f_recursive && chp != NULL) (void)fts_set(ftsp, p, FTS_SKIP); break; default: break; } if (errno) err(1, "fts_read"); } /* * Display() takes a linked list of FTSENT structures and passes the list * along with any other necessary information to the print function. P * points to the parent directory of the display list. */ static void display(const FTSENT *p, FTSENT *list, int options) { struct stat *sp; DISPLAY d; FTSENT *cur; NAMES *np; off_t maxsize; long maxblock; u_long btotal, labelstrlen, maxinode, maxlen, maxnlink; u_long maxlabelstr; u_int devstrlen; int maxflags; gid_t maxgroup; uid_t maxuser;


size_t flen, ulen, glen; char *initmax; int entries, needstats; const char *user, *group; char *flags, *labelstr = NULL; char buf[STRBUF_SIZEOF(u_quad_t) + 1]; char ngroup[STRBUF_SIZEOF(uid_t) + 1]; char nuser[STRBUF_SIZEOF(gid_t) + 1]; needstats = f_inode || f_longform || f_size; flen = 0; btotal = 0; initmax = getenv("LS_COLWIDTHS"); /* Fields match -lios order. New ones should be added at the end. */ maxlabelstr = maxblock = maxinode = maxlen = maxnlink = maxuser = maxgroup = maxflags = maxsize = 0; if (initmax != NULL && *initmax != '\0') { char *initmax2, *jinitmax; int ninitmax; /* Fill-in "::" as "0:0:0" for the sake of scanf. */ jinitmax = malloc(strlen(initmax) * 2 + 2); if (jinitmax == NULL) err(1, "malloc"); initmax2 = jinitmax; if (*initmax == ':') strcpy(initmax2, "0:"), initmax2 += 2; else *initmax2++ = *initmax, *initmax2 = '\0'; for (initmax++; *initmax != '\0'; initmax++) { if (initmax[-1] == ':' && initmax[0] == ':') { *initmax2++ = '0'; *initmax2++ = initmax[0]; initmax2[1] = '\0'; } else { *initmax2++ = initmax[0]; initmax2[1] = '\0'; } } if (initmax2[-1] == ':') strcpy(initmax2, "0"); ninitmax = sscanf(jinitmax, " %lu : %ld : %lu : %u : %u : %i : %jd : %lu : %lu ", &maxinode, &maxblock, &maxnlink, &maxuser, &maxgroup, &maxflags, &maxsize, &maxlen, &maxlabelstr); f_notabs = 1;


switch (ninitmax) { case 0: maxinode = 0; /* FALLTHROUGH */ case 1: maxblock = 0; /* FALLTHROUGH */ case 2: maxnlink = 0; /* FALLTHROUGH */ case 3: maxuser = 0; /* FALLTHROUGH */ case 4: maxgroup = 0; /* FALLTHROUGH */ case 5: maxflags = 0; /* FALLTHROUGH */ case 6: maxsize = 0; /* FALLTHROUGH */ case 7: maxlen = 0; /* FALLTHROUGH */ case 8: maxlabelstr = 0; /* FALLTHROUGH */ #ifdef COLORLS if (!f_color) #endif f_notabs = 0; /* FALLTHROUGH */ default: break; } MAKENINES(maxinode); MAKENINES(maxblock); MAKENINES(maxnlink); MAKENINES(maxsize); free(jinitmax); } devstrlen = 0; flags = NULL; for (cur = list, entries = 0; cur; cur = cur->fts_link) { if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { warnx("%s: %s",


cur->fts_name, strerror(cur->fts_errno)); cur->fts_number = NO_PRINT; rval = 1; continue; } /* * P is NULL if list is the argv list, to which different rules * apply. */ if (p == NULL) { /* Directories will be displayed later. */ if (cur->fts_info == FTS_D && !f_listdir) { cur->fts_number = NO_PRINT; continue; } } else { /* Only display dot file if -a/-A set. */ if (cur->fts_name[0] == '.' && !f_listdot) { cur->fts_number = NO_PRINT; continue; } } if (cur->fts_namelen > maxlen) maxlen = cur->fts_namelen; if (f_octal || f_octal_escape) { u_long t = len_octal(cur->fts_name, cur->fts_namelen); if (t > maxlen) maxlen = t; } if (needstats) { sp = cur->fts_statp; if (sp->st_blocks > maxblock) maxblock = sp->st_blocks; if (sp->st_ino > maxinode) maxinode = sp->st_ino; if (sp->st_nlink > maxnlink) maxnlink = sp->st_nlink; if (sp->st_size > maxsize) maxsize = sp->st_size; btotal += sp->st_blocks; if (f_longform) { if (f_numericonly) { (void)snprintf(nuser, sizeof(nuser), "%u", sp->st_uid); (void)snprintf(ngroup, sizeof(ngroup),


"%u", sp->st_gid); user = nuser; group = ngroup; } else { user = user_from_uid(sp->st_uid, 0); group = group_from_gid(sp->st_gid, 0); } if ((ulen = strlen(user)) > maxuser) maxuser = ulen; if ((glen = strlen(group)) > maxgroup) maxgroup = glen; if (f_flags) { flags = fflagstostr(sp->st_flags); if (flags != NULL && *flags == '\0') { free(flags); flags = strdup("-"); } if (flags == NULL) err(1, "fflagstostr"); flen = strlen(flags); if (flen > (size_t)maxflags) maxflags = flen; } else flen = 0; labelstr = NULL; if (f_label) { char name[PATH_MAX + 1]; mac_t label; int error; error = mac_prepare_file_label(&label); if (error == -1) { warn("MAC label for %s/%s", cur->fts_parent->fts_path, cur->fts_name); goto label_out; } if (cur->fts_level == FTS_ROOTLEVEL) snprintf(name, sizeof(name), "%s", cur->fts_name); else snprintf(name, sizeof(name), "%s/%s", cur->fts_parent-> fts_accpath, cur->fts_name); if (options & FTS_LOGICAL)


error = mac_get_file(name, label); else error = mac_get_link(name, label); if (error == -1) { warn("MAC label for %s/%s", cur->fts_parent->fts_path, cur->fts_name); mac_free(label); goto label_out; } error = mac_to_text(label, &labelstr); if (error == -1) { warn("MAC label for %s/%s", cur->fts_parent->fts_path, cur->fts_name); mac_free(label); goto label_out; } mac_free(label); label_out: if (labelstr == NULL) labelstr = strdup("-"); labelstrlen = strlen(labelstr); if (labelstrlen > maxlabelstr) maxlabelstr = labelstrlen; } else labelstrlen = 0; if ((np = malloc(sizeof(NAMES) + labelstrlen + ulen + glen + flen + 4)) == NULL) err(1, "malloc"); np->user = &np->data[0]; (void)strcpy(np->user, user); np->group = &np->data[ulen + 1]; (void)strcpy(np->group, group); if ((S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) && devstrlen < DEVSTR_HEX_LEN) { if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0) devstrlen = DEVSTR_HEX_LEN; else


devstrlen = DEVSTR_LEN; } if (f_flags) { np->flags = &np->data[ulen + glen + 2]; (void)strcpy(np->flags, flags); free(flags); } if (f_label) { np->label = &np->data[ulen + glen + 2 + (f_flags ? flen + 1 : 0)]; (void)strcpy(np->label, labelstr); free(labelstr); } cur->fts_pointer = np; } } ++entries; } /* * If there are no entries to display, we normally stop right * here. However, we must continue if we have to display the * total block count. In this case, we display the total only * on the second (p != NULL) pass. */ if (!entries && (!(f_longform || f_size) || p == NULL)) return; d.list = list; d.entries = entries; d.maxlen = maxlen; if (needstats) { d.btotal = btotal; (void)snprintf(buf, sizeof(buf), "%lu", maxblock); d.s_block = strlen(buf); d.s_flags = maxflags; d.s_label = maxlabelstr; d.s_group = maxgroup; (void)snprintf(buf, sizeof(buf), "%lu", maxinode); d.s_inode = strlen(buf); (void)snprintf(buf, sizeof(buf), "%lu", maxnlink); d.s_nlink = strlen(buf); if (f_humanval) d.s_size = HUMANVALSTR_LEN; else { (void)snprintf(buf, sizeof(buf), "%ju", maxsize); d.s_size = strlen(buf);


} if (d.s_size < devstrlen) d.s_size = devstrlen; d.s_user = maxuser; } printfcn(&d); output = 1; if (f_longform) for (cur = list; cur; cur = cur->fts_link) free(cur->fts_pointer); } /* * Ordering for mastercmp: * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories * as larger than directories. Within either group, use the sort function. * All other levels use the sort function. Error entries remain unsorted. */ static int mastercmp(const FTSENT * const *a, const FTSENT * const *b) { int a_info, b_info; a_info = (*a)->fts_info; if (a_info == FTS_ERR) return (0); b_info = (*b)->fts_info; if (b_info == FTS_ERR) return (0); if (a_info == FTS_NS || b_info == FTS_NS) return (namecmp(*a, *b)); if (a_info != b_info && (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { if (a_info == FTS_D) return (1); if (b_info == FTS_D) return (-1); } return (sortfcn(*a, *b)); }

Shincho font sumple text  
Shincho font sumple text  

This is a font sample PDF of "Shincho font" which is still under development and it doesn't have all characters of SJIS yet. All text is fro...

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