Adding upstream version 5.2.37.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
This commit is contained in:
parent
cf91100bce
commit
fa1b3d3922
GPG key ID:
BCC918A2ABD66424
1435 changed files with 757174 additions and 0 deletions
329
examples/loadables/id.c
Normal file
329
examples/loadables/id.c
Normal file
|
|
@ -0,0 +1,329 @@
|
|||
/*
|
||||
* id - POSIX.2 user identity
|
||||
*
|
||||
* (INCOMPLETE -- supplementary groups for other users not yet done)
|
||||
*
|
||||
* usage: id [-Ggu] [-nr] [user]
|
||||
*
|
||||
* The default output format looks something like:
|
||||
* uid=xxx(chet) gid=xx groups=aa(aname), bb(bname), cc(cname)
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright (C) 1999-2009 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Bash.
|
||||
Bash is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
Bash is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with Bash. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <config.h>
|
||||
#include <stdio.h>
|
||||
#include "bashtypes.h"
|
||||
#include <pwd.h>
|
||||
#include <grp.h>
|
||||
#include "bashansi.h"
|
||||
|
||||
#ifdef HAVE_LIMITS_H
|
||||
# include <limits.h>
|
||||
#else
|
||||
# include <sys/param.h>
|
||||
#endif
|
||||
|
||||
#if !defined (HAVE_GETPW_DECLS)
|
||||
extern struct passwd *getpwuid ();
|
||||
#endif
|
||||
extern struct group *getgrgid ();
|
||||
|
||||
#include "shell.h"
|
||||
#include "builtins.h"
|
||||
#include "stdc.h"
|
||||
#include "common.h"
|
||||
#include "bashgetopt.h"
|
||||
|
||||
#define ID_ALLGROUPS 0x001 /* -G */
|
||||
#define ID_GIDONLY 0x002 /* -g */
|
||||
#define ID_USENAME 0x004 /* -n */
|
||||
#define ID_USEREAL 0x008 /* -r */
|
||||
#define ID_USERONLY 0x010 /* -u */
|
||||
|
||||
#define ID_FLAGSET(s) ((id_flags & (s)) != 0)
|
||||
|
||||
static int id_flags;
|
||||
|
||||
static uid_t ruid, euid;
|
||||
static gid_t rgid, egid;
|
||||
|
||||
static char *id_user;
|
||||
|
||||
static int inituser ();
|
||||
|
||||
static int id_pruser ();
|
||||
static int id_prgrp ();
|
||||
static int id_prgroups ();
|
||||
static int id_prall ();
|
||||
|
||||
int
|
||||
id_builtin (list)
|
||||
WORD_LIST *list;
|
||||
{
|
||||
int opt;
|
||||
char *user;
|
||||
|
||||
id_flags = 0;
|
||||
reset_internal_getopt ();
|
||||
while ((opt = internal_getopt (list, "Ggnru")) != -1)
|
||||
{
|
||||
switch (opt)
|
||||
{
|
||||
case 'G': id_flags |= ID_ALLGROUPS; break;
|
||||
case 'g': id_flags |= ID_GIDONLY; break;
|
||||
case 'n': id_flags |= ID_USENAME; break;
|
||||
case 'r': id_flags |= ID_USEREAL; break;
|
||||
case 'u': id_flags |= ID_USERONLY; break;
|
||||
CASE_HELPOPT;
|
||||
default:
|
||||
builtin_usage ();
|
||||
return (EX_USAGE);
|
||||
}
|
||||
}
|
||||
list = loptend;
|
||||
|
||||
user = list ? list->word->word : (char *)NULL;
|
||||
|
||||
/* Check for some invalid option combinations */
|
||||
opt = ID_FLAGSET (ID_ALLGROUPS) + ID_FLAGSET (ID_GIDONLY) + ID_FLAGSET (ID_USERONLY);
|
||||
if (opt > 1 || (opt == 0 && ((id_flags & (ID_USEREAL|ID_USENAME)) != 0)))
|
||||
{
|
||||
builtin_usage ();
|
||||
return (EX_USAGE);
|
||||
}
|
||||
|
||||
if (list && list->next)
|
||||
{
|
||||
builtin_usage ();
|
||||
return (EX_USAGE);
|
||||
}
|
||||
|
||||
if (inituser (user) < 0)
|
||||
return (EXECUTION_FAILURE);
|
||||
|
||||
opt = 0;
|
||||
if (id_flags & ID_USERONLY)
|
||||
opt += id_pruser ((id_flags & ID_USEREAL) ? ruid : euid);
|
||||
else if (id_flags & ID_GIDONLY)
|
||||
opt += id_prgrp ((id_flags & ID_USEREAL) ? rgid : egid);
|
||||
else if (id_flags & ID_ALLGROUPS)
|
||||
opt += id_prgroups (user);
|
||||
else
|
||||
opt += id_prall (user);
|
||||
putchar ('\n');
|
||||
fflush (stdout);
|
||||
|
||||
return (opt == 0 ? EXECUTION_SUCCESS : EXECUTION_FAILURE);
|
||||
}
|
||||
|
||||
static int
|
||||
inituser (uname)
|
||||
char *uname;
|
||||
{
|
||||
struct passwd *pwd;
|
||||
|
||||
if (uname)
|
||||
{
|
||||
pwd = getpwnam (uname);
|
||||
if (pwd == 0)
|
||||
{
|
||||
builtin_error ("%s: no such user", uname);
|
||||
return -1;
|
||||
}
|
||||
ruid = euid = pwd->pw_uid;
|
||||
rgid = egid = pwd->pw_gid;
|
||||
}
|
||||
else
|
||||
{
|
||||
ruid = current_user.uid;
|
||||
euid = current_user.euid;
|
||||
rgid = current_user.gid;
|
||||
egid = current_user.egid;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Print the name or value of user ID UID. */
|
||||
static int
|
||||
id_pruser (uid)
|
||||
int uid;
|
||||
{
|
||||
struct passwd *pwd = NULL;
|
||||
int r;
|
||||
|
||||
r = 0;
|
||||
if (id_flags & ID_USENAME)
|
||||
{
|
||||
pwd = getpwuid (uid);
|
||||
if (pwd == NULL)
|
||||
r = 1;
|
||||
}
|
||||
if (pwd)
|
||||
printf ("%s", pwd->pw_name);
|
||||
else
|
||||
printf ("%u", (unsigned) uid);
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
/* Print the name or value of group ID GID. */
|
||||
|
||||
static int
|
||||
id_prgrp (gid)
|
||||
int gid;
|
||||
{
|
||||
struct group *grp = NULL;
|
||||
int r;
|
||||
|
||||
r = 0;
|
||||
if (id_flags & ID_USENAME)
|
||||
{
|
||||
grp = getgrgid (gid);
|
||||
if (grp == NULL)
|
||||
r = 1;
|
||||
}
|
||||
|
||||
if (grp)
|
||||
printf ("%s", grp->gr_name);
|
||||
else
|
||||
printf ("%u", (unsigned) gid);
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
static int
|
||||
id_prgroups (uname)
|
||||
char *uname;
|
||||
{
|
||||
int *glist, ng, i, r;
|
||||
|
||||
r = 0;
|
||||
id_prgrp (rgid);
|
||||
if (egid != rgid)
|
||||
{
|
||||
putchar (' ');
|
||||
id_prgrp (egid);
|
||||
}
|
||||
|
||||
if (uname)
|
||||
{
|
||||
builtin_error ("supplementary groups for other users not yet implemented");
|
||||
glist = (int *)NULL;
|
||||
ng = 0;
|
||||
r = 1;
|
||||
}
|
||||
else
|
||||
glist = get_group_array (&ng);
|
||||
|
||||
for (i = 0; i < ng; i++)
|
||||
if (glist[i] != rgid && glist[i] != egid)
|
||||
{
|
||||
putchar (' ');
|
||||
id_prgrp (glist[i]);
|
||||
}
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
static int
|
||||
id_prall (uname)
|
||||
char *uname;
|
||||
{
|
||||
int r, i, ng, *glist;
|
||||
struct passwd *pwd;
|
||||
struct group *grp;
|
||||
|
||||
r = 0;
|
||||
printf ("uid=%u", (unsigned) ruid);
|
||||
pwd = getpwuid (ruid);
|
||||
if (pwd == NULL)
|
||||
r = 1;
|
||||
else
|
||||
printf ("(%s)", pwd->pw_name);
|
||||
|
||||
printf (" gid=%u", (unsigned) rgid);
|
||||
grp = getgrgid (rgid);
|
||||
if (grp == NULL)
|
||||
r = 1;
|
||||
else
|
||||
printf ("(%s)", grp->gr_name);
|
||||
|
||||
if (euid != ruid)
|
||||
{
|
||||
printf (" euid=%u", (unsigned) euid);
|
||||
pwd = getpwuid (euid);
|
||||
if (pwd == NULL)
|
||||
r = 1;
|
||||
else
|
||||
printf ("(%s)", pwd->pw_name);
|
||||
}
|
||||
|
||||
if (egid != rgid)
|
||||
{
|
||||
printf (" egid=%u", (unsigned) egid);
|
||||
grp = getgrgid (egid);
|
||||
if (grp == NULL)
|
||||
r = 1;
|
||||
else
|
||||
printf ("(%s)", grp->gr_name);
|
||||
}
|
||||
|
||||
if (uname)
|
||||
{
|
||||
builtin_error ("supplementary groups for other users not yet implemented");
|
||||
glist = (int *)NULL;
|
||||
ng = 0;
|
||||
r = 1;
|
||||
}
|
||||
else
|
||||
glist = get_group_array (&ng);
|
||||
|
||||
if (ng > 0)
|
||||
printf (" groups=");
|
||||
for (i = 0; i < ng; i++)
|
||||
{
|
||||
if (i > 0)
|
||||
printf (", ");
|
||||
printf ("%u", (unsigned) glist[i]);
|
||||
grp = getgrgid (glist[i]);
|
||||
if (grp == NULL)
|
||||
r = 1;
|
||||
else
|
||||
printf ("(%s)", grp->gr_name);
|
||||
}
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
char *id_doc[] = {
|
||||
"Display information about user."
|
||||
"",
|
||||
"Return information about user identity",
|
||||
(char *)NULL
|
||||
};
|
||||
|
||||
struct builtin id_struct = {
|
||||
"id",
|
||||
id_builtin,
|
||||
BUILTIN_ENABLED,
|
||||
id_doc,
|
||||
"id [user]\n\tid -G [-n] [user]\n\tid -g [-nr] [user]\n\tid -u [-nr] [user]",
|
||||
0
|
||||
};
|
||||
Loading…
Add table
Add a link
Reference in a new issue