#if 0
#ifndef lint
static char sccsid[] = "@(#)print.c 8.4 (Berkeley) 4/17/94";
#endif
#endif
#include <sys/cdefs.h>
__RCSID("$FreeBSD: src/bin/ls/print.c,v 1.57 2002/08/29 14:29:09 keramida Exp $");
#include <sys/param.h>
#include <sys/stat.h>
#ifdef __APPLE__
#include <sys/acl.h>
#include <sys/types.h>
#include <grp.h>
#include <pwd.h>
#include <membership.h>
#include <membershipPriv.h>
#include <uuid/uuid.h>
#endif
#include <err.h>
#include <errno.h>
#include <fts.h>
#include <math.h>
#include <langinfo.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#ifdef COLORLS
#include <ctype.h>
#include <termcap.h>
#include <signal.h>
#endif
#include "ls.h"
#include "extern.h"
static int printaname(FTSENT *, u_long, u_long);
static void printlink(FTSENT *);
static void printtime(time_t);
static int printtype(u_int);
static void printsize(size_t, off_t);
#ifdef COLORLS
static void endcolor(int);
static int colortype(mode_t);
#endif
#define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT)
#define KILO_SZ(n) (n)
#define MEGA_SZ(n) ((n) * (n))
#define GIGA_SZ(n) ((n) * (n) * (n))
#define TERA_SZ(n) ((n) * (n) * (n) * (n))
#define PETA_SZ(n) ((n) * (n) * (n) * (n) * (n))
#define KILO_2_SZ (KILO_SZ(1024ULL))
#define MEGA_2_SZ (MEGA_SZ(1024ULL))
#define GIGA_2_SZ (GIGA_SZ(1024ULL))
#define TERA_2_SZ (TERA_SZ(1024ULL))
#define PETA_2_SZ (PETA_SZ(1024ULL))
static u_int64_t vals_base2[] = {1, KILO_2_SZ, MEGA_2_SZ, GIGA_2_SZ, TERA_2_SZ, PETA_2_SZ};
typedef enum {
NONE, KILO, MEGA, GIGA, TERA, PETA, UNIT_MAX
} unit_t;
static unit_t unit_adjust(off_t *);
static int unitp[] = {NONE, KILO, MEGA, GIGA, TERA, PETA};
#ifdef COLORLS
typedef enum Colors {
C_DIR,
C_LNK,
C_SOCK,
C_FIFO,
C_EXEC,
C_BLK,
C_CHR,
C_SUID,
C_SGID,
C_WSDIR,
C_WDIR,
C_NUMCOLORS
} Colors;
static const char *defcolors = "exfxcxdxbxegedabagacad";
static struct {
int num[2];
int bold;
} colors[C_NUMCOLORS];
#endif
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');
}
}
static 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 printf("%s", name);
}
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 is_gid = -1;
struct group *tgrp = NULL;
struct passwd *tpass = NULL;
char *name = NULL;
uid_t id;
#define MAXNAMETAG (MAXLOGNAME + 6)
name = (char *) malloc(MAXNAMETAG);
if (NULL == name)
err(1, "malloc");
if (0 != mbr_uuid_to_id(uu, &id, &is_gid))
goto errout;
switch (is_gid) {
case ID_TYPE_UID:
tpass = getpwuid(id);
if (!tpass) {
goto errout;
}
snprintf(name, MAXNAMETAG, "%s:%s", "user", tpass->pw_name);
break;
case ID_TYPE_GID:
tgrp = getgrgid((gid_t) id);
if (!tgrp) {
goto errout;
}
snprintf(name, MAXNAMETAG, "%s:%s", "group", tgrp->gr_name);
break;
default:
if (0 != mbr_uuid_to_string(uu, name))
goto errout;
}
return name;
errout:
fprintf(stderr, "Unable to translate qualifier on ACL\n");
strcpy(name, "<UNKNOWN>");
return name;
}
static void
printacl(acl_t acl, int isdir)
{
acl_entry_t entry;
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 ((applicable = (uuid_t *) acl_get_qualifier(entry)) == NULL)
continue;
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;
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(DISPLAY *dp)
{
struct stat *sp;
FTSENT *p;
NAMES *np;
char buf[20];
#ifdef __APPLE__
acl_t acl = NULL;
char full_path[MAXPATHLEN];
#endif
#ifdef COLORLS
int color_printed = 0;
#endif
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;
sp = p->fts_statp;
if (f_inode)
(void)printf("%*lu ", dp->s_inode, (u_long)sp->st_ino);
if (f_size)
(void)printf("%*qu ",
dp->s_block, (u_int64_t)howmany(sp->st_blocks, blocksize));
strmode(sp->st_mode, buf);
np = p->fts_pointer;
#ifdef __APPLE__
if (p->fts_parent->fts_name && *p->fts_parent->fts_name)
{
snprintf(full_path, sizeof full_path, "%s/%s",
p->fts_parent->fts_accpath, p->fts_accpath);
acl = acl_get_file(full_path, ACL_TYPE_EXTENDED);
} else
acl = acl_get_file(p->fts_accpath, ACL_TYPE_EXTENDED);
#endif
if (f_group) {
#ifdef __APPLE__
(void)printf("%s%s %*u %-*s ", buf, acl == NULL ? " " : "+", dp->s_nlink,
sp->st_nlink, dp->s_group, np->group);
#else
(void)printf("%s %*u %-*s ", buf, dp->s_nlink,
sp->st_nlink, dp->s_group, np->group);
#endif
}
else {
#ifdef __APPLE__
(void)printf("%s%s %*u %-*s %-*s ", buf, acl == NULL ? " " : "+", dp->s_nlink,
sp->st_nlink, dp->s_user, np->user, dp->s_group,
np->group);
#else
(void)printf("%s %*u %-*s %-*s ", buf, dp->s_nlink,
sp->st_nlink, dp->s_user, np->user, dp->s_group,
np->group);
#endif
}
if (f_flags)
(void)printf("%-*s ", dp->s_flags, np->flags);
if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode))
if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0)
(void)printf("%3d, 0x%08x ",
major(sp->st_rdev),
(u_int)minor(sp->st_rdev));
else
(void)printf("%3d, %3d ",
major(sp->st_rdev), minor(sp->st_rdev));
else if (dp->bcfile)
(void)printf("%*s%*qu ",
8 - dp->s_size, "", dp->s_size, (u_int64_t)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);
#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 (f_acl && (acl != NULL))
printacl(acl, S_ISDIR(sp->st_mode));
acl_free(acl);
#endif
}
}
void
printstream(DISPLAY *dp)
{
FTSENT *p;
extern int termwidth;
int chcnt;
for (p = dp->list, chcnt = 0; p; p = p->fts_link) {
if (p->fts_number == NO_PRINT)
continue;
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(DISPLAY *dp)
{
extern int termwidth;
static FTSENT **array;
static int lastentries = -1;
FTSENT *p;
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;
if (dp->entries > lastentries) {
lastentries = dp->entries;
if ((array =
realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) {
warn(NULL);
printscol(dp);
}
}
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->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) {
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');
}
}
static int
printaname(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("%*lu ", (int)inodefield, (u_long)sp->st_ino);
if (f_size)
chcnt += printf("%*qu ",
(int)sizefield, (u_int64_t)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);
}
static void
printtime(time_t ftime)
{
char longstring[80];
static time_t now;
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_sectime)
format = d_first ? "%e %b %T %Y " : "%b %e %T %Y ";
else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS)
format = d_first ? "%e %b %R " : "%b %e %R ";
else
format = d_first ? "%e %b %Y " : "%b %e %Y ";
strftime(longstring, sizeof(longstring), format, localtime(&ftime));
fputs(longstring, 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 = c;
(void)write(STDOUT_FILENO, &tmp, 1);
return 0;
}
static void
printcolor(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
endcolor(int sig)
{
tputs(ansi_coloff, 1, sig ? writech : putch);
tputs(attrs_off, 1, sig ? writech : putch);
}
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);
}
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;
int len;
char c[2];
short legacy_warn = 0;
if (cs == NULL)
cs = "";
len = strlen(cs);
for (i = 0; i < C_NUMCOLORS; i++) {
colors[i].bold = 0;
if (len <= 2 * 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++) {
if (c[j] >= '0' && c[j] <= '7') {
colors[i].num[j] = c[j] - '0';
if (!legacy_warn) {
fprintf(stderr,
"warn: LSCOLORS should use "
"characters a-h instead of 0-9 ("
"see the manual page)\n");
}
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 {
fprintf(stderr,
"error: invalid character '%c' in LSCOLORS"
" env var\n", c[j]);
colors[i].num[j] = -1;
}
}
}
}
void
colorquit(int sig)
{
endcolor(sig);
(void)signal(sig, SIG_DFL);
(void)kill(getpid(), sig);
}
#endif
static void
printlink(FTSENT *p)
{
int lnklen;
char name[MAXPATHLEN + 1];
char 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(" -> ");
(void)printname(path);
}
static void
printsize(size_t width, off_t bytes)
{
unit_t unit;
if (f_humanval) {
unit = unit_adjust(&bytes);
if (bytes == 0)
(void)printf("%*s ", (int)width, "0B");
else
(void)printf("%*lld%c ", (int)width - 1, bytes,
"BKMGTPE"[unit]);
} else
(void)printf("%*lld ", (int)width, bytes);
}
unit_t
unit_adjust(off_t *val)
{
double abval;
unit_t unit;
unsigned int unit_sz;
abval = fabs((double)*val);
unit_sz = abval ? ilogb(abval) / 10 : 0;
if (unit_sz >= UNIT_MAX) {
unit = NONE;
} else {
unit = unitp[unit_sz];
*val /= (double)vals_base2[unit_sz];
}
return (unit);
}