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print.c
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print.c
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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1989, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 2022, 2024
* Joshua Lee Ockert. 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.
*/
#if 0
#ifndef lint
static char sccsid[] = "@(#)print.c 8.4 (Berkeley) 4/17/94";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/stat.h>
#ifdef __APPLE__
#include <sys/acl.h>
#include <sys/xattr.h>
#include <sys/types.h>
#include <get_compat.h>
#include <grp.h>
#include <pwd.h>
#include <TargetConditionals.h>
#include <membership.h>
// #include <membershipPriv.h>
#include <uuid/uuid.h>
int mbr_identifier_translate(int, uuid_t, size_t, int, void **, int *);
#endif
#include <err.h>
#include <errno.h>
#include <fts.h>
#include <langinfo.h>
#include "import/libutil.h"
#include <limits.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <wchar.h>
#ifdef COLORLS
#include <ctype.h>
#include <termcap.h>
#include <signal.h>
#endif
#include <stdint.h> /* intmax_t */
#include <assert.h>
#include "ls.h"
#include "extern.h"
static int printaname(const FTSENT *, u_long, u_long);
static void printdev(size_t, dev_t);
static void printlink(const FTSENT *);
static void printtime(time_t);
static int printtype(u_int);
static void printsize(size_t, off_t);
#ifdef COLORLS
static void endcolor_termcap(int);
static void endcolor_ansi(void);
static void endcolor(int);
static int colortype(mode_t);
#endif
#ifndef __APPLE__
static void aclmode(char *, const FTSENT *);
#endif
#define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT)
#ifdef COLORLS
/* Most of these are taken from <sys/stat.h> */
typedef enum Colors {
C_DIR, /* directory */
C_LNK, /* symbolic link */
C_SOCK, /* socket */
C_FIFO, /* pipe */
C_EXEC, /* executable */
C_BLK, /* block special */
C_CHR, /* character special */
C_SUID, /* setuid executable */
C_SGID, /* setgid executable */
C_WSDIR, /* directory writeble to others, with sticky
* bit */
C_WDIR, /* directory writeble to others, without
* sticky bit */
C_NUMCOLORS /* just a place-holder */
} Colors;
static const char *defcolors = "exfxcxdxbxegedabagacad";
/* colors for file types */
static struct {
int num[2];
int bold;
} colors[C_NUMCOLORS];
#endif
static size_t padding_for_month[12];
static size_t month_max_size = 0;
void
printscol(const DISPLAY *dp)
{
FTSENT *p;
assert(dp);
if (unix2003_compat && (dp->list != NULL)) {
if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
(void)printf("total %qu\n", (u_int64_t)howmany(dp->btotal, blocksize));
}
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');
}
}
/*
* print name in current style
*/
int
printname(const char *name)
{
if (f_octal || f_octal_escape)
return prn_octal(name);
else if (f_nonprint)
return prn_printable(name);
else
return prn_normal(name);
}
static const char *
get_abmon(int mon)
{
switch (mon) {
case 0: return (nl_langinfo(ABMON_1));
case 1: return (nl_langinfo(ABMON_2));
case 2: return (nl_langinfo(ABMON_3));
case 3: return (nl_langinfo(ABMON_4));
case 4: return (nl_langinfo(ABMON_5));
case 5: return (nl_langinfo(ABMON_6));
case 6: return (nl_langinfo(ABMON_7));
case 7: return (nl_langinfo(ABMON_8));
case 8: return (nl_langinfo(ABMON_9));
case 9: return (nl_langinfo(ABMON_10));
case 10: return (nl_langinfo(ABMON_11));
case 11: return (nl_langinfo(ABMON_12));
}
/* should never happen */
abort();
}
static size_t
mbswidth(const char *month)
{
wchar_t wc;
size_t width, donelen, clen, w;
width = donelen = 0;
while ((clen = mbrtowc(&wc, month + donelen, MB_LEN_MAX, NULL)) != 0) {
if (clen == (size_t)-1 || clen == (size_t)-2)
return (-1);
donelen += clen;
if ((w = wcwidth(wc)) == (size_t)-1)
return (-1);
width += w;
}
return (width);
}
static void
compute_abbreviated_month_size(void)
{
int i;
size_t width;
size_t months_width[12];
for (i = 0; i < 12; i++) {
width = mbswidth(get_abmon(i));
if (width == (size_t)-1) {
month_max_size = -1;
return;
}
months_width[i] = width;
if (width > month_max_size)
month_max_size = width;
}
for (i = 0; i < 12; i++)
padding_for_month[i] = month_max_size - months_width[i];
}
/*
* print access control list
*/
static struct {
acl_perm_t perm;
char *name;
int flags;
#define ACL_PERM_DIR (1<<0)
#define ACL_PERM_FILE (1<<1)
} acl_perms[] = {
{ACL_READ_DATA, "read", ACL_PERM_FILE},
{ACL_LIST_DIRECTORY, "list", ACL_PERM_DIR},
{ACL_WRITE_DATA, "write", ACL_PERM_FILE},
{ACL_ADD_FILE, "add_file", ACL_PERM_DIR},
{ACL_EXECUTE, "execute", ACL_PERM_FILE},
{ACL_SEARCH, "search", ACL_PERM_DIR},
{ACL_DELETE, "delete", ACL_PERM_FILE | ACL_PERM_DIR},
{ACL_APPEND_DATA, "append", ACL_PERM_FILE},
{ACL_ADD_SUBDIRECTORY, "add_subdirectory", ACL_PERM_DIR},
{ACL_DELETE_CHILD, "delete_child", ACL_PERM_DIR},
{ACL_READ_ATTRIBUTES, "readattr", ACL_PERM_FILE | ACL_PERM_DIR},
{ACL_WRITE_ATTRIBUTES, "writeattr", ACL_PERM_FILE | ACL_PERM_DIR},
{ACL_READ_EXTATTRIBUTES, "readextattr", ACL_PERM_FILE | ACL_PERM_DIR},
{ACL_WRITE_EXTATTRIBUTES, "writeextattr", ACL_PERM_FILE | ACL_PERM_DIR},
{ACL_READ_SECURITY, "readsecurity", ACL_PERM_FILE | ACL_PERM_DIR},
{ACL_WRITE_SECURITY, "writesecurity", ACL_PERM_FILE | ACL_PERM_DIR},
{ACL_CHANGE_OWNER, "chown", ACL_PERM_FILE | ACL_PERM_DIR},
{0, NULL, 0}
};
static struct {
acl_flag_t flag;
char *name;
int flags;
} acl_flags[] = {
{ACL_ENTRY_FILE_INHERIT, "file_inherit", ACL_PERM_DIR},
{ACL_ENTRY_DIRECTORY_INHERIT, "directory_inherit", ACL_PERM_DIR},
{ACL_ENTRY_LIMIT_INHERIT, "limit_inherit", ACL_PERM_FILE | ACL_PERM_DIR},
{ACL_ENTRY_ONLY_INHERIT, "only_inherit", ACL_PERM_DIR},
{0, NULL, 0}
};
static char *
uuid_to_name(uuid_t *uu)
{
int type;
char *name = NULL;
char *recname = NULL;
#define MAXNAMETAG (MAXLOGNAME + 6) /* + strlen("group:") */
name = (char *) malloc(MAXNAMETAG);
if (NULL == name) {
err(1, "malloc");
}
if (f_numericonly) {
goto errout;
}
// if (mbr_identifier_translate(ID_TYPE_UUID, *uu, sizeof(*uu), ID_TYPE_NAME, (void **) &recname, &type)) {
//
// Weird license for the header file this is in, so we'll work around it.
//
// RETURN TYPE: No stdbool.h so probably an int.
//
// ARGUMENTS: All-caps are usually #define'd macros or enums, so compat
// with int. We know uu is a uuid_t. sizeof() --> size_t. All caps
// --> int again. Explicit cast to void **. Address of an int is a
// pointer-to-int type.
//
// Using int mbr_identifier_translate(int, uuid_t, size_t, int, void **, int *);
//
// Lastly, compiling complains about ID_TYPE_NAME, so that's probably not
// defined anywhere in free software. I tried just using ID_TYPE_USERNAME,
// and it just works... for user AND group names. Huh. Oh well ¯\_(ツ)_/¯
if (mbr_identifier_translate(ID_TYPE_UUID,
*uu,
sizeof(*uu),
ID_TYPE_USERNAME,
(void **) &recname,
&type)) {
goto errout;
}
// snprintf(name, MAXNAMETAG, "%s:%s", (type == MBR_REC_TYPE_USER ? "user" : "group"), recname);
// Weird license for the header file this is in, so we'll work around it.
// MBR_REC_TYPE_USER is not defined here unless we include the non-free
// header file, but it appears to have only a few options (looks like it's
// for ACL scopes). Let's try a few and see what happens.
//
// fprintf(stderr, "Assuming MBR_REC_TYPE_USER is 0\n");
// snprintf(name, MAXNAMETAG, "%s:%s", (type == 0 ? "user" : "group"), recname);
//
// fprintf(stderr, "Assuming MBR_REC_TYPE_USER is 1\n");
// snprintf(name, MAXNAMETAG, "%s:%s", (type == 1 ? "user" : "group"), recname);
//
// fprintf(stderr, "Assuming MBR_REC_TYPE_USER is 2\n");
// snprintf(name, MAXNAMETAG, "%s:%s", (type == 2 ? "user" : "group"), recname);
//
// RESULTS OF TESTING
//
// $ date > test.txt
// $ chmod +a "staff deny write" test.txt
// $ chmod +a "jlockert deny append" test.txt
// $ /bin/ls -le test.txt
// -rw-r--r--+ 1 jlockert staff 29 Dec 26 04:14 test.txt
// 0: user:jlockert deny append
// 1: group:staff deny write
// $ ./ls -le test.txt
// -rw-r--r--+ 1 jlockert staff 29 Dec 26 04:14 test.txt
// 0: group:? deny append
// 1: group: deny write
// $ ./ls -le test.txt
// -rw-r--r--+ 1 jlockert staff 29 Dec 26 04:14 test.txt
// 0: user:? deny append
// 1: group: deny write
// $ ./ls -le test.txt
// -rw-r--r--+ 1 jlockert staff 29 Dec 26 04:14 test.txt
// 0: group:? deny append
// 1: user: deny write
//
// RESULT: Assuming MBR_REC_TYPE_USER is 1 correctly got the result that
// the append denial is a user ACL and the write denial is a group
// ACL. Moreover, when we assumed MBR_REC_TYPE_USER was 2, we
// got user and group ACLs perfectly inverted. Safe to conclude:
// MBR_REC_TYPE_USER = 1
// MBR_REC_TYPE_GROUP = 2
snprintf(name, MAXNAMETAG, "%s:%s", (type==1)?"user":"group", recname);
free(recname);
return name;
errout:
uuid_unparse_upper(*uu, name);
return name;
}
static void
printxattr(const DISPLAY *dp, int count, char *buf, int sizes[])
{
for (int i = 0; i < count; i++) {
putchar('\t');
printname(buf);
putchar('\t');
printsize(dp->s_size, sizes[i]);
putchar('\n');
buf += strlen(buf) + 1;
}
}
static void
printacl(acl_t acl, int isdir)
{
acl_entry_t entry = NULL;
int index;
uuid_t *applicable;
char *name = NULL;
acl_tag_t tag;
acl_flagset_t flags;
acl_permset_t perms;
char *type;
int i, first;
for (index = 0;
acl_get_entry(acl, entry == NULL ? ACL_FIRST_ENTRY : ACL_NEXT_ENTRY, &entry) == 0;
index++) {
if (acl_get_tag_type(entry, &tag) != 0)
continue;
if (acl_get_flagset_np(entry, &flags) != 0)
continue;
if (acl_get_permset(entry, &perms) != 0)
continue;
if ((applicable = (uuid_t *) acl_get_qualifier(entry)) == NULL)
continue;
name = uuid_to_name(applicable);
acl_free(applicable);
switch(tag) {
case ACL_EXTENDED_ALLOW:
type = "allow";
break;
case ACL_EXTENDED_DENY:
type = "deny";
break;
default:
type = "unknown";
}
(void)printf(" %d: %s%s %s ",
index,
name,
acl_get_flag_np(flags, ACL_ENTRY_INHERITED) ? " inherited" : "",
type);
if (name)
free(name);
for (i = 0, first = 0; acl_perms[i].name != NULL; i++) {
if (acl_get_perm_np(perms, acl_perms[i].perm) == 0)
continue;
if (!(acl_perms[i].flags & (isdir ? ACL_PERM_DIR : ACL_PERM_FILE)))
continue;
(void)printf("%s%s", first++ ? "," : "", acl_perms[i].name);
}
for (i = 0; acl_flags[i].name != NULL; i++) {
if (acl_get_flag_np(flags, acl_flags[i].flag) == 0)
continue;
if (!(acl_flags[i].flags & (isdir ? ACL_PERM_DIR : ACL_PERM_FILE)))
continue;
(void)printf("%s%s", first++ ? "," : "", acl_flags[i].name);
}
(void)putchar('\n');
}
}
void
printlong(const DISPLAY *dp)
{
struct stat *sp;
FTSENT *p;
NAMES *np;
char buf[20];
#ifdef COLORLS
int color_printed = 0;
#endif
if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) &&
(f_longform || f_size)) {
(void)printf("total %qu\n", (u_int64_t)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("%*ju ",
dp->s_inode, (uintmax_t)sp->st_ino);
if (f_size)
(void)printf("%*lld ",
dp->s_block, howmany(sp->st_blocks, blocksize));
strmode(sp->st_mode, buf);
#ifndef __APPLE__
aclmode(buf, p);
#endif
np = p->fts_pointer;
#ifdef __APPLE__
buf[10] = '\0'; /* make +/@ about the mode */
char str[2] = { np->mode_suffix, '\0' };
if (f_group && f_owner) { /* means print neither */
(void)printf("%s%s %*ju ", buf, str, dp->s_nlink,
(uintmax_t)sp->st_nlink);
} else if (f_group) {
(void)printf("%s%s %*ju %-*s ", buf, str, dp->s_nlink,
(uintmax_t)sp->st_nlink, dp->s_group, np->group);
} else if (f_owner) {
(void)printf("%s%s %*ju %-*s ", buf, str, dp->s_nlink,
(uintmax_t)sp->st_nlink, dp->s_user, np->user);
} else {
(void)printf("%s%s %*ju %-*s %-*s ", buf, str, dp->s_nlink,
(uintmax_t)sp->st_nlink, dp->s_user, np->user, dp->s_group,
np->group);
}
#else /* ! __APPLE__ */
(void)printf("%s %*ju %-*s %-*s ", buf, dp->s_nlink,
(uintmax_t)sp->st_nlink, dp->s_user, np->user, dp->s_group,
np->group);
#endif /* __APPLE__ */
if (f_flags)
(void)printf("%-*s ", dp->s_flags, np->flags);
#ifndef __APPLE__
if (f_label)
(void)printf("%-*s ", dp->s_label, np->label);
#endif /* !__APPLE__ */
if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode))
printdev(dp->s_size, sp->st_rdev);
else
printsize(dp->s_size, sp->st_size);
if (f_accesstime)
printtime(sp->st_atime);
else if (f_birthtime)
printtime(sp->st_birthtime);
else if (f_statustime)
printtime(sp->st_ctime);
else
printtime(sp->st_mtime);
#ifdef COLORLS
if (f_color)
color_printed = colortype(sp->st_mode);
#endif
(void)printname(p->fts_name);
#ifdef COLORLS
if (f_color && color_printed)
endcolor(0);
#endif
if (f_type)
(void)printtype(sp->st_mode);
if (S_ISLNK(sp->st_mode))
printlink(p);
(void)putchar('\n');
#ifdef __APPLE__
if (np->xattr_count && f_xattr) {
printxattr(dp, np->xattr_count, np->xattr_names, np->xattr_sizes);
}
if (np->acl != NULL && f_acl) {
printacl(np->acl, S_ISDIR(sp->st_mode));
}
#endif /* __APPLE__ */
}
}
void
printstream(const DISPLAY *dp)
{
FTSENT *p;
int chcnt;
for (p = dp->list, chcnt = 0; p; p = p->fts_link) {
if (p->fts_number == NO_PRINT)
continue;
/* XXX strlen does not take octal escapes into account. */
if (strlen(p->fts_name) + chcnt +
(p->fts_link ? 2 : 0) >= (unsigned)termwidth) {
putchar('\n');
chcnt = 0;
}
chcnt += printaname(p, dp->s_inode, dp->s_block);
if (p->fts_link) {
printf(", ");
chcnt += 2;
}
}
if (chcnt)
putchar('\n');
}
void
printcol(const DISPLAY *dp)
{
static FTSENT **array;
static int lastentries = -1;
FTSENT *p;
FTSENT **narray;
int base;
int chcnt;
int cnt;
int col;
int colwidth;
int endcol;
int num;
int numcols;
int numrows;
int row;
int tabwidth;
if (f_notabs)
tabwidth = 1;
else
tabwidth = 8;
/*
* Have to do random access in the linked list -- build a table
* of pointers.
*/
if ((lastentries == -1) || (dp->entries > lastentries)) {
if ((narray =
realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) {
warn(NULL);
printscol(dp);
return;
}
lastentries = dp->entries;
array = narray;
}
memset(array, 0, dp->entries * sizeof(FTSENT *));
for (p = dp->list, num = 0; p; p = p->fts_link)
if (p->fts_number != NO_PRINT)
array[num++] = p;
colwidth = dp->maxlen;
if (f_inode)
colwidth += dp->s_inode + 1;
if (f_size)
colwidth += dp->s_block + 1;
if (f_type)
colwidth += 1;
colwidth = (colwidth + tabwidth) & ~(tabwidth - 1);
if (termwidth < 2 * colwidth) {
printscol(dp);
return;
}
numcols = termwidth / colwidth;
numrows = num / numcols;
if (num % numcols)
++numrows;
if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) &&
(f_longform || f_size)) {
(void)printf("total %qu\n", (u_int64_t)howmany(dp->btotal, blocksize));
}
base = 0;
for (row = 0; row < numrows; ++row) {
endcol = colwidth;
if (!f_sortacross)
base = row;
for (col = 0, chcnt = 0; col < numcols; ++col) {
assert(base < dp->entries);
chcnt += printaname(array[base], dp->s_inode,
dp->s_block);
if (f_sortacross)
base++;
else
base += numrows;
if (base >= num)
break;
while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1)))
<= endcol) {
if (f_sortacross && col + 1 >= numcols)
break;
(void)putchar(f_notabs ? ' ' : '\t');
chcnt = cnt;
}
endcol += colwidth;
}
(void)putchar('\n');
}
}
/*
* print [inode] [size] name
* return # of characters printed, no trailing characters.
*/
static int
printaname(const FTSENT *p, u_long inodefield, u_long sizefield)
{
struct stat *sp;
int chcnt;
#ifdef COLORLS
int color_printed = 0;
#endif
sp = p->fts_statp;
chcnt = 0;
if (f_inode)
chcnt += printf("%*ju ",
(int)inodefield, (uintmax_t)sp->st_ino);
if (f_size)
chcnt += printf("%*lld ",
(int)sizefield, howmany(sp->st_blocks, blocksize));
#ifdef COLORLS
if (f_color)
color_printed = colortype(sp->st_mode);
#endif
chcnt += printname(p->fts_name);
#ifdef COLORLS
if (f_color && color_printed)
endcolor(0);
#endif
if (f_type)
chcnt += printtype(sp->st_mode);
return (chcnt);
}
/*
* Print device special file major and minor numbers.
*/
static void
printdev(size_t width, dev_t dev)
{
(void)printf("%#*jx ", (u_int)width, (uintmax_t)dev);
}
static size_t
ls_strftime(char *str, size_t len, const char *fmt, const struct tm *tm)
{
char *posb, nfmt[BUFSIZ];
const char *format = fmt;
size_t ret;
#ifdef __APPLE__
if (tm == NULL) {
size_t qlen = 0;
/*
* rdar://problem/9977017 - Fill str with ? if localtime() had
* returned NULL. This is better than crashing as we try to
* dereference it, though it doesn't always look the nicest.
*/
for (qlen = 0; fmt[qlen] != '\0' && qlen < len; qlen++) {
if (fmt[qlen] != ' ')
str[qlen] = '?';
else
str[qlen] = ' ';
}
return (qlen);
}
#endif
if ((posb = strstr(fmt, "%b")) != NULL) {
if (month_max_size == 0) {
compute_abbreviated_month_size();
}
if (month_max_size > 0) {
snprintf(nfmt, sizeof(nfmt), "%.*s%s%*s%s",
(int)(posb - fmt), fmt,
get_abmon(tm->tm_mon),
(int)padding_for_month[tm->tm_mon],
"",
posb + 2);
format = nfmt;
}
}
ret = strftime(str, len, format, tm);
return (ret);
}
static void
printtime(time_t ftime)
{
char longstring[80];
static time_t now = 0;
const char *format;
static int d_first = -1;
if (d_first < 0)
d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
if (now == 0)
now = time(NULL);
#define SIXMONTHS ((365 / 2) * 86400)
if (f_timeformat) /* user specified format */
format = f_timeformat;
else if (f_sectime)
/* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */
format = d_first ? "%e %b %T %Y" : "%b %e %T %Y";
else if (ftime + SIXMONTHS > now &&
ftime < now + (unix2003_compat ? 1 : SIXMONTHS))
/* mmm dd hh:mm || dd mmm hh:mm */
format = d_first ? "%e %b %R" : "%b %e %R";
else
/* mmm dd yyyy || dd mmm yyyy */
format = d_first ? "%e %b %Y" : "%b %e %Y";
ls_strftime(longstring, sizeof(longstring), format, localtime(&ftime));
fputs(longstring, stdout);
fputc(' ', stdout);
}
static int
printtype(u_int mode)
{
if (f_slash) {
if ((mode & S_IFMT) == S_IFDIR) {
(void)putchar('/');
return (1);
}
return (0);
}
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);
case S_IFWHT:
(void)putchar('%');
return (1);
default:
break;
}
if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
(void)putchar('*');
return (1);
}
return (0);
}
#ifdef COLORLS
static int
putch(int c)
{
(void)putchar(c);
return 0;
}
static int
writech(int c)
{
char tmp = (char)c;
(void)write(STDOUT_FILENO, &tmp, 1);
return 0;
}
static void
printcolor_termcap(Colors c)
{
char *ansiseq;
if (colors[c].bold)
tputs(enter_bold, 1, putch);
if (colors[c].num[0] != -1) {
ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]);
if (ansiseq)
tputs(ansiseq, 1, putch);
}
if (colors[c].num[1] != -1) {
ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]);
if (ansiseq)
tputs(ansiseq, 1, putch);
}
}
static void
printcolor_ansi(Colors c)
{
printf("\033[");
if (colors[c].bold)
printf("1");
if (colors[c].num[0] != -1)
printf(";3%d", colors[c].num[0]);
if (colors[c].num[1] != -1)
printf(";4%d", colors[c].num[1]);
printf("m");
}
static void
printcolor(Colors c)
{
if (explicitansi)
printcolor_ansi(c);
else
printcolor_termcap(c);
}
static void
endcolor_termcap(int sig)
{
tputs(ansi_coloff, 1, sig ? writech : putch);
tputs(attrs_off, 1, sig ? writech : putch);
}
static void
endcolor_ansi(void)
{
printf("\33[m");
}
static void
endcolor(int sig)
{
if (explicitansi)
endcolor_ansi();
else
endcolor_termcap(sig);
}
static int
colortype(mode_t mode)
{
switch (mode & S_IFMT) {
case S_IFDIR:
if (mode & S_IWOTH)
if (mode & S_ISTXT)
printcolor(C_WSDIR);
else
printcolor(C_WDIR);
else
printcolor(C_DIR);
return (1);
case S_IFLNK:
printcolor(C_LNK);
return (1);
case S_IFSOCK:
printcolor(C_SOCK);
return (1);
case S_IFIFO:
printcolor(C_FIFO);
return (1);
case S_IFBLK:
printcolor(C_BLK);
return (1);
case S_IFCHR:
printcolor(C_CHR);
return (1);
default:;
}
if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
if (mode & S_ISUID)
printcolor(C_SUID);
else if (mode & S_ISGID)
printcolor(C_SGID);
else
printcolor(C_EXEC);
return (1);
}
return (0);
}
void
parsecolors(const char *cs)
{
int i;
int j;
size_t len;
char c[2];
short legacy_warn = 0;
if (cs == NULL)
cs = ""; /* LSCOLORS not set */
len = strlen(cs);
for (i = 0; i < (int)C_NUMCOLORS; i++) {
colors[i].bold = 0;
if (len <= 2 * (size_t)i) {
c[0] = defcolors[2 * i];
c[1] = defcolors[2 * i + 1];
} else {
c[0] = cs[2 * i];
c[1] = cs[2 * i + 1];
}
for (j = 0; j < 2; j++) {
/* Legacy colours used 0-7 */
if (c[j] >= '0' && c[j] <= '7') {
colors[i].num[j] = c[j] - '0';
if (!legacy_warn) {
warnx("LSCOLORS should use "
"characters a-h instead of 0-9 ("
"see the manual page)");
}
legacy_warn = 1;
} else if (c[j] >= 'a' && c[j] <= 'h')
colors[i].num[j] = c[j] - 'a';
else if (c[j] >= 'A' && c[j] <= 'H') {
colors[i].num[j] = c[j] - 'A';
colors[i].bold = 1;
} else if (tolower((unsigned char)c[j]) == 'x')
colors[i].num[j] = -1;
else {
warnx("invalid character '%c' in LSCOLORS"
" env var", c[j]);
colors[i].num[j] = -1;
}