bc6cd262e3
new groups should be created. This is similar to useradd's -r flag. Closes my own PR bin/22791. Patch by URA Hiroshi with some minor changes by me. No objections in tech-userlevel@ for multiple days.
2194 lines
54 KiB
C
2194 lines
54 KiB
C
/* $NetBSD: user.c,v 1.77 2005/02/05 10:43:14 jmmv Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1999 Alistair G. Crooks. All rights reserved.
|
|
*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Alistair G. Crooks.
|
|
* 4. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*/
|
|
#include <sys/cdefs.h>
|
|
|
|
#ifndef lint
|
|
__COPYRIGHT("@(#) Copyright (c) 1999 \
|
|
The NetBSD Foundation, Inc. All rights reserved.");
|
|
__RCSID("$NetBSD: user.c,v 1.77 2005/02/05 10:43:14 jmmv Exp $");
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <ctype.h>
|
|
#include <dirent.h>
|
|
#include <err.h>
|
|
#include <fcntl.h>
|
|
#include <grp.h>
|
|
#include <paths.h>
|
|
#include <pwd.h>
|
|
#include <regex.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <syslog.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
#include <util.h>
|
|
|
|
#include "defs.h"
|
|
#include "usermgmt.h"
|
|
|
|
|
|
/* this struct describes a uid range */
|
|
typedef struct range_t {
|
|
int r_from; /* low uid */
|
|
int r_to; /* high uid */
|
|
} range_t;
|
|
|
|
/* this struct encapsulates the user information */
|
|
typedef struct user_t {
|
|
int u_flags; /* see below */
|
|
int u_uid; /* uid of user */
|
|
char *u_password; /* encrypted password */
|
|
char *u_comment; /* comment field */
|
|
char *u_home; /* home directory */
|
|
char *u_primgrp; /* primary group */
|
|
int u_groupc; /* # of secondary groups */
|
|
const char *u_groupv[NGROUPS_MAX]; /* secondary groups */
|
|
char *u_shell; /* user's shell */
|
|
char *u_basedir; /* base directory for home */
|
|
char *u_expire; /* when password will expire */
|
|
char *u_inactive; /* when account will expire */
|
|
char *u_skeldir; /* directory for startup files */
|
|
char *u_class; /* login class */
|
|
unsigned u_rsize; /* size of range array */
|
|
unsigned u_rc; /* # of ranges */
|
|
range_t *u_rv; /* the ranges */
|
|
unsigned u_defrc; /* # of ranges in defaults */
|
|
int u_preserve; /* preserve uids on deletion */
|
|
int u_allow_samba; /* allow trailing '$' for samba login names */
|
|
} user_t;
|
|
|
|
/* flags for which fields of the user_t replace the passwd entry */
|
|
enum {
|
|
F_COMMENT = 0x0001,
|
|
F_DUPUID = 0x0002,
|
|
F_EXPIRE = 0x0004,
|
|
F_GROUP = 0x0008,
|
|
F_HOMEDIR = 0x0010,
|
|
F_MKDIR = 0x0020,
|
|
F_INACTIVE = 0x0040,
|
|
F_PASSWORD = 0x0080,
|
|
F_SECGROUP = 0x0100,
|
|
F_SHELL = 0x0200,
|
|
F_UID = 0x0400,
|
|
F_USERNAME = 0x0800,
|
|
F_CLASS = 0x1000
|
|
};
|
|
|
|
#define CONFFILE "/etc/usermgmt.conf"
|
|
|
|
#ifndef DEF_GROUP
|
|
#define DEF_GROUP "users"
|
|
#endif
|
|
|
|
#ifndef DEF_BASEDIR
|
|
#define DEF_BASEDIR "/home"
|
|
#endif
|
|
|
|
#ifndef DEF_SKELDIR
|
|
#define DEF_SKELDIR "/etc/skel"
|
|
#endif
|
|
|
|
#ifndef DEF_SHELL
|
|
#define DEF_SHELL _PATH_CSHELL
|
|
#endif
|
|
|
|
#ifndef DEF_COMMENT
|
|
#define DEF_COMMENT ""
|
|
#endif
|
|
|
|
#ifndef DEF_LOWUID
|
|
#define DEF_LOWUID 1000
|
|
#endif
|
|
|
|
#ifndef DEF_HIGHUID
|
|
#define DEF_HIGHUID 60000
|
|
#endif
|
|
|
|
#ifndef DEF_INACTIVE
|
|
#define DEF_INACTIVE 0
|
|
#endif
|
|
|
|
#ifndef DEF_EXPIRE
|
|
#define DEF_EXPIRE NULL
|
|
#endif
|
|
|
|
#ifndef DEF_CLASS
|
|
#define DEF_CLASS ""
|
|
#endif
|
|
|
|
#ifndef WAITSECS
|
|
#define WAITSECS 10
|
|
#endif
|
|
|
|
#ifndef NOBODY_UID
|
|
#define NOBODY_UID 32767
|
|
#endif
|
|
|
|
/* some useful constants */
|
|
enum {
|
|
MaxShellNameLen = 256,
|
|
MaxFileNameLen = MAXPATHLEN,
|
|
MaxUserNameLen = 32,
|
|
MaxFieldNameLen = 32,
|
|
MaxCommandLen = 2048,
|
|
MaxEntryLen = 2048,
|
|
PasswordLength = 2048,
|
|
|
|
DES_Len = 13,
|
|
|
|
LowGid = DEF_LOWUID,
|
|
HighGid = DEF_HIGHUID
|
|
};
|
|
|
|
/* Full paths of programs used here */
|
|
#define CHMOD "/bin/chmod"
|
|
#define CHOWN "/usr/sbin/chown"
|
|
#define MKDIR "/bin/mkdir"
|
|
#define MV "/bin/mv"
|
|
#define NOLOGIN "/sbin/nologin"
|
|
#define PAX "/bin/pax"
|
|
#define RM "/bin/rm"
|
|
|
|
#define UNSET_INACTIVE "Null (unset)"
|
|
#define UNSET_EXPIRY "Null (unset)"
|
|
|
|
static int asystem(const char *fmt, ...)
|
|
__attribute__((__format__(__printf__, 1, 2)));
|
|
|
|
static int verbose;
|
|
|
|
/* if *cpp is non-null, free it, then assign `n' chars of `s' to it */
|
|
static void
|
|
memsave(char **cpp, const char *s, size_t n)
|
|
{
|
|
if (*cpp != NULL) {
|
|
FREE(*cpp);
|
|
}
|
|
NEWARRAY(char, *cpp, n + 1, exit(1));
|
|
(void) memcpy(*cpp, s, n);
|
|
(*cpp)[n] = '\0';
|
|
}
|
|
|
|
/* a replacement for system(3) */
|
|
static int
|
|
asystem(const char *fmt, ...)
|
|
{
|
|
va_list vp;
|
|
char buf[MaxCommandLen];
|
|
int ret;
|
|
|
|
va_start(vp, fmt);
|
|
(void) vsnprintf(buf, sizeof(buf), fmt, vp);
|
|
va_end(vp);
|
|
if (verbose) {
|
|
(void) printf("Command: %s\n", buf);
|
|
}
|
|
if ((ret = system(buf)) != 0) {
|
|
warnx("[Warning] can't system `%s'", buf);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* remove a users home directory, returning 1 for success (ie, no problems encountered) */
|
|
static int
|
|
removehomedir(const char *user, int uid, const char *dir)
|
|
{
|
|
struct stat st;
|
|
|
|
/* userid not root? */
|
|
if (uid == 0) {
|
|
warnx("Not deleting home directory `%s'; userid is 0", dir);
|
|
return 0;
|
|
}
|
|
|
|
/* directory exists (and is a directory!) */
|
|
if (stat(dir, &st) < 0) {
|
|
warnx("Home directory `%s' doesn't exist", dir);
|
|
return 0;
|
|
}
|
|
if (!S_ISDIR(st.st_mode)) {
|
|
warnx("Home directory `%s' is not a directory", dir);
|
|
return 0;
|
|
}
|
|
|
|
/* userid matches directory owner? */
|
|
if (st.st_uid != uid) {
|
|
warnx("User `%s' doesn't own directory `%s', not removed", user, dir);
|
|
return 0;
|
|
}
|
|
|
|
(void) seteuid(uid);
|
|
/* we add the "|| true" to keep asystem() quiet if there is a non-zero exit status. */
|
|
(void) asystem("%s -rf %s > /dev/null 2>&1 || true", RM, dir);
|
|
(void) seteuid(0);
|
|
if (rmdir(dir) < 0) {
|
|
warnx("Unable to remove all files in `%s'", dir);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
#define NetBSD_1_4_K 104110000
|
|
|
|
#if defined(__NetBSD_Version__) && (__NetBSD_Version__ < NetBSD_1_4_K)
|
|
/* bounds checking strncpy */
|
|
static int
|
|
strlcpy(char *to, char *from, size_t tosize)
|
|
{
|
|
size_t n;
|
|
int fromsize;
|
|
|
|
fromsize = strlen(from);
|
|
n = MIN(tosize - 1, fromsize);
|
|
(void) memcpy(to, from, n);
|
|
to[n] = '\0';
|
|
return fromsize;
|
|
}
|
|
#endif /* NetBSD < 1.4K */
|
|
|
|
/*
|
|
* Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
|
|
* All rights reserved.
|
|
*
|
|
* 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. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
|
|
*/
|
|
|
|
/*
|
|
* research has shown that NetBSD 1.3H was the first version of -current
|
|
* with asprintf in libc. agc
|
|
*/
|
|
#define NetBSD_1_3_H 103080000
|
|
|
|
#if defined(__NetBSD_Version__) && (__NetBSD_Version__ < NetBSD_1_3_H)
|
|
|
|
int
|
|
asprintf(char **str, char const *fmt, ...)
|
|
{
|
|
int ret;
|
|
va_list ap;
|
|
FILE f;
|
|
unsigned char *_base;
|
|
|
|
f._flags = __SWR | __SSTR | __SALC;
|
|
f._bf._base = f._p = (unsigned char *)malloc(128);
|
|
if (f._bf._base == NULL)
|
|
goto err;
|
|
f._bf._size = f._w = 127; /* Leave room for the NUL */
|
|
va_start(ap, fmt);
|
|
ret = vfprintf(&f, fmt, ap);
|
|
va_end(ap);
|
|
if (ret == -1)
|
|
goto err;
|
|
*f._p = '\0';
|
|
_base = realloc(f._bf._base, (size_t)(ret + 1));
|
|
if (_base == NULL)
|
|
goto err;
|
|
*str = (char *)_base;
|
|
return (ret);
|
|
|
|
err:
|
|
if (f._bf._base)
|
|
free(f._bf._base);
|
|
*str = NULL;
|
|
return (-1);
|
|
}
|
|
#endif /* NetBSD < 1.3H */
|
|
|
|
/* return 1 if all of `s' is numeric */
|
|
static int
|
|
is_number(char *s)
|
|
{
|
|
for ( ; *s ; s++) {
|
|
if (!isdigit((unsigned char) *s)) {
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* check that the effective uid is 0 - called from funcs which will
|
|
* modify data and config files.
|
|
*/
|
|
static void
|
|
checkeuid(void)
|
|
{
|
|
if (geteuid() != 0) {
|
|
errx(EXIT_FAILURE, "Program must be run as root");
|
|
}
|
|
}
|
|
|
|
/* copy any dot files into the user's home directory */
|
|
static int
|
|
copydotfiles(char *skeldir, int uid, int gid, char *dir)
|
|
{
|
|
struct dirent *dp;
|
|
DIR *dirp;
|
|
int n;
|
|
|
|
if ((dirp = opendir(skeldir)) == NULL) {
|
|
warn("can't open source . files dir `%s'", skeldir);
|
|
return 0;
|
|
}
|
|
for (n = 0; (dp = readdir(dirp)) != NULL && n == 0 ; ) {
|
|
if (strcmp(dp->d_name, ".") == 0 ||
|
|
strcmp(dp->d_name, "..") == 0) {
|
|
continue;
|
|
}
|
|
n = 1;
|
|
}
|
|
(void) closedir(dirp);
|
|
if (n == 0) {
|
|
warnx("No \"dot\" initialisation files found");
|
|
} else {
|
|
(void) asystem("cd %s && %s -rw -pe %s . %s",
|
|
skeldir, PAX, (verbose) ? "-v" : "", dir);
|
|
}
|
|
(void) asystem("%s -R -h %d:%d %s", CHOWN, uid, gid, dir);
|
|
(void) asystem("%s -R u+w %s", CHMOD, dir);
|
|
return n;
|
|
}
|
|
|
|
/* create a group entry with gid `gid' */
|
|
static int
|
|
creategid(char *group, int gid, const char *name)
|
|
{
|
|
struct stat st;
|
|
FILE *from;
|
|
FILE *to;
|
|
char buf[MaxEntryLen];
|
|
char f[MaxFileNameLen];
|
|
int fd;
|
|
int cc;
|
|
|
|
if (getgrnam(group) != NULL) {
|
|
warnx("group `%s' already exists", group);
|
|
return 0;
|
|
}
|
|
if ((from = fopen(_PATH_GROUP, "r")) == NULL) {
|
|
warn("can't create gid for `%s': can't open `%s'", name, _PATH_GROUP);
|
|
return 0;
|
|
}
|
|
if (flock(fileno(from), LOCK_EX | LOCK_NB) < 0) {
|
|
warn("can't lock `%s'", _PATH_GROUP);
|
|
}
|
|
(void) fstat(fileno(from), &st);
|
|
(void) snprintf(f, sizeof(f), "%s.XXXXXX", _PATH_GROUP);
|
|
if ((fd = mkstemp(f)) < 0) {
|
|
(void) fclose(from);
|
|
warn("can't create gid: mkstemp failed");
|
|
return 0;
|
|
}
|
|
if ((to = fdopen(fd, "w")) == NULL) {
|
|
(void) fclose(from);
|
|
(void) close(fd);
|
|
(void) unlink(f);
|
|
warn("can't create gid: fdopen `%s' failed", f);
|
|
return 0;
|
|
}
|
|
while ((cc = fread(buf, sizeof(char), sizeof(buf), from)) > 0) {
|
|
if (fwrite(buf, sizeof(char), (unsigned) cc, to) != cc) {
|
|
(void) fclose(from);
|
|
(void) close(fd);
|
|
(void) unlink(f);
|
|
warn("can't create gid: short write to `%s'", f);
|
|
return 0;
|
|
}
|
|
}
|
|
(void) fprintf(to, "%s:*:%d:%s\n", group, gid, name);
|
|
(void) fclose(from);
|
|
(void) fclose(to);
|
|
if (rename(f, _PATH_GROUP) < 0) {
|
|
(void) unlink(f);
|
|
warn("can't create gid: can't rename `%s' to `%s'", f, _PATH_GROUP);
|
|
return 0;
|
|
}
|
|
(void) chmod(_PATH_GROUP, st.st_mode & 07777);
|
|
syslog(LOG_INFO, "new group added: name=%s, gid=%d", group, gid);
|
|
return 1;
|
|
}
|
|
|
|
/* modify the group entry with name `group' to be newent */
|
|
static int
|
|
modify_gid(char *group, char *newent)
|
|
{
|
|
struct stat st;
|
|
FILE *from;
|
|
FILE *to;
|
|
char buf[MaxEntryLen];
|
|
char f[MaxFileNameLen];
|
|
char *colon;
|
|
int groupc;
|
|
int entc;
|
|
int fd;
|
|
int cc;
|
|
|
|
if ((from = fopen(_PATH_GROUP, "r")) == NULL) {
|
|
warn("can't create gid for `%s': can't open `%s'", group, _PATH_GROUP);
|
|
return 0;
|
|
}
|
|
if (flock(fileno(from), LOCK_EX | LOCK_NB) < 0) {
|
|
warn("can't lock `%s'", _PATH_GROUP);
|
|
}
|
|
(void) fstat(fileno(from), &st);
|
|
(void) snprintf(f, sizeof(f), "%s.XXXXXX", _PATH_GROUP);
|
|
if ((fd = mkstemp(f)) < 0) {
|
|
(void) fclose(from);
|
|
warn("can't create gid: mkstemp failed");
|
|
return 0;
|
|
}
|
|
if ((to = fdopen(fd, "w")) == NULL) {
|
|
(void) fclose(from);
|
|
(void) close(fd);
|
|
(void) unlink(f);
|
|
warn("can't create gid: fdopen `%s' failed", f);
|
|
return 0;
|
|
}
|
|
groupc = strlen(group);
|
|
while (fgets(buf, sizeof(buf), from) != NULL) {
|
|
cc = strlen(buf);
|
|
if ((colon = strchr(buf, ':')) == NULL) {
|
|
warn("badly formed entry `%s'", buf);
|
|
continue;
|
|
}
|
|
entc = (int)(colon - buf);
|
|
if (entc == groupc && strncmp(group, buf, (unsigned) entc) == 0) {
|
|
if (newent == NULL) {
|
|
continue;
|
|
} else {
|
|
cc = strlen(newent);
|
|
(void) strlcpy(buf, newent, sizeof(buf));
|
|
}
|
|
}
|
|
if (fwrite(buf, sizeof(char), (unsigned) cc, to) != cc) {
|
|
(void) fclose(from);
|
|
(void) close(fd);
|
|
(void) unlink(f);
|
|
warn("can't create gid: short write to `%s'", f);
|
|
return 0;
|
|
}
|
|
}
|
|
(void) fclose(from);
|
|
(void) fclose(to);
|
|
if (rename(f, _PATH_GROUP) < 0) {
|
|
(void) unlink(f);
|
|
warn("can't create gid: can't rename `%s' to `%s'", f, _PATH_GROUP);
|
|
return 0;
|
|
}
|
|
(void) chmod(_PATH_GROUP, st.st_mode & 07777);
|
|
if (newent == NULL) {
|
|
syslog(LOG_INFO, "group deleted: name=%s", group);
|
|
} else {
|
|
syslog(LOG_INFO, "group information modified: name=%s", group);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* modify the group entries for all `groups', by adding `user' */
|
|
static int
|
|
append_group(char *user, int ngroups, const char **groups)
|
|
{
|
|
struct group *grp;
|
|
struct stat st;
|
|
FILE *from;
|
|
FILE *to;
|
|
char buf[MaxEntryLen];
|
|
char f[MaxFileNameLen];
|
|
char *colon;
|
|
int groupc;
|
|
int entc;
|
|
int fd;
|
|
int nc;
|
|
int cc;
|
|
int i;
|
|
int j;
|
|
|
|
for (i = 0 ; i < ngroups ; i++) {
|
|
if ((grp = getgrnam(groups[i])) == NULL) {
|
|
warnx("can't append group `%s' for user `%s'", groups[i], user);
|
|
} else {
|
|
for (j = 0 ; grp->gr_mem[j] ; j++) {
|
|
if (strcmp(user, grp->gr_mem[j]) == 0) {
|
|
/* already in it */
|
|
groups[i] = "";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ((from = fopen(_PATH_GROUP, "r")) == NULL) {
|
|
warn("can't append group for `%s': can't open `%s'", user, _PATH_GROUP);
|
|
return 0;
|
|
}
|
|
if (flock(fileno(from), LOCK_EX | LOCK_NB) < 0) {
|
|
warn("can't lock `%s'", _PATH_GROUP);
|
|
}
|
|
(void) fstat(fileno(from), &st);
|
|
(void) snprintf(f, sizeof(f), "%s.XXXXXX", _PATH_GROUP);
|
|
if ((fd = mkstemp(f)) < 0) {
|
|
(void) fclose(from);
|
|
warn("can't create gid: mkstemp failed");
|
|
return 0;
|
|
}
|
|
if ((to = fdopen(fd, "w")) == NULL) {
|
|
(void) fclose(from);
|
|
(void) close(fd);
|
|
(void) unlink(f);
|
|
warn("can't create gid: fdopen `%s' failed", f);
|
|
return 0;
|
|
}
|
|
while (fgets(buf, sizeof(buf), from) != NULL) {
|
|
cc = strlen(buf);
|
|
if ((colon = strchr(buf, ':')) == NULL) {
|
|
warn("badly formed entry `%s'", buf);
|
|
continue;
|
|
}
|
|
entc = (int)(colon - buf);
|
|
for (i = 0 ; i < ngroups ; i++) {
|
|
if ((groupc = strlen(groups[i])) == 0) {
|
|
continue;
|
|
}
|
|
if (entc == groupc && strncmp(groups[i], buf, (unsigned) entc) == 0) {
|
|
if ((nc = snprintf(&buf[cc - 1],
|
|
sizeof(buf) - cc + 1,
|
|
"%s%s\n",
|
|
(buf[cc - 2] == ':') ? "" : ",",
|
|
user)) < 0) {
|
|
warnx("Warning: group `%s' entry too long", groups[i]);
|
|
}
|
|
cc += nc - 1;
|
|
}
|
|
}
|
|
if (fwrite(buf, sizeof(char), (unsigned) cc, to) != cc) {
|
|
(void) fclose(from);
|
|
(void) close(fd);
|
|
(void) unlink(f);
|
|
warn("can't create gid: short write to `%s'", f);
|
|
return 0;
|
|
}
|
|
}
|
|
(void) fclose(from);
|
|
(void) fclose(to);
|
|
if (rename(f, _PATH_GROUP) < 0) {
|
|
(void) unlink(f);
|
|
warn("can't create gid: can't rename `%s' to `%s'", f, _PATH_GROUP);
|
|
return 0;
|
|
}
|
|
(void) chmod(_PATH_GROUP, st.st_mode & 07777);
|
|
return 1;
|
|
}
|
|
|
|
/* return 1 if `login' is a valid login name */
|
|
static int
|
|
valid_login(char *login_name, int allow_samba)
|
|
{
|
|
unsigned char *cp;
|
|
|
|
if (strlen(login_name) >= LOGIN_NAME_MAX) {
|
|
return 0;
|
|
}
|
|
for (cp = login_name ; *cp ; cp++) {
|
|
if (!isalnum(*cp) && *cp != '.' && *cp != '_' && *cp != '-') {
|
|
#ifdef EXTENSIONS
|
|
/* check for a trailing '$' in a Samba user name */
|
|
if (allow_samba && *cp == '$' && *(cp + 1) == 0x0) {
|
|
return 1;
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* return 1 if `group' is a valid group name */
|
|
static int
|
|
valid_group(char *group)
|
|
{
|
|
unsigned char *cp;
|
|
|
|
for (cp = group ; *cp ; cp++) {
|
|
if (!isalnum(*cp)) {
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* find the next gid in the range lo .. hi */
|
|
static int
|
|
getnextgid(int *gidp, int lo, int hi)
|
|
{
|
|
for (*gidp = lo ; *gidp < hi ; *gidp += 1) {
|
|
if (getgrgid((gid_t)*gidp) == NULL) {
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
/* save a range of uids */
|
|
static int
|
|
save_range(user_t *up, char *cp)
|
|
{
|
|
int from;
|
|
int to;
|
|
int i;
|
|
|
|
if (up->u_rsize == 0) {
|
|
up->u_rsize = 32;
|
|
NEWARRAY(range_t, up->u_rv, up->u_rsize, return(0));
|
|
} else if (up->u_rc == up->u_rsize) {
|
|
up->u_rsize *= 2;
|
|
RENEW(range_t, up->u_rv, up->u_rsize, return(0));
|
|
}
|
|
if (up->u_rv && sscanf(cp, "%d..%d", &from, &to) == 2) {
|
|
for (i = up->u_defrc ; i < up->u_rc ; i++) {
|
|
if (up->u_rv[i].r_from == from && up->u_rv[i].r_to == to) {
|
|
break;
|
|
}
|
|
}
|
|
if (i == up->u_rc) {
|
|
up->u_rv[up->u_rc].r_from = from;
|
|
up->u_rv[up->u_rc].r_to = to;
|
|
up->u_rc += 1;
|
|
}
|
|
} else {
|
|
warnx("Bad range `%s'", cp);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
/* set the defaults in the defaults file */
|
|
static int
|
|
setdefaults(user_t *up)
|
|
{
|
|
char template[MaxFileNameLen];
|
|
FILE *fp;
|
|
int ret;
|
|
int fd;
|
|
#ifdef EXTENSIONS
|
|
int i;
|
|
#endif
|
|
|
|
(void) snprintf(template, sizeof(template), "%s.XXXXXX", CONFFILE);
|
|
if ((fd = mkstemp(template)) < 0) {
|
|
warnx("can't mkstemp `%s' for writing", CONFFILE);
|
|
return 0;
|
|
}
|
|
if ((fp = fdopen(fd, "w")) == NULL) {
|
|
warn("can't fdopen `%s' for writing", CONFFILE);
|
|
return 0;
|
|
}
|
|
ret = 1;
|
|
if (fprintf(fp, "group\t\t%s\n", up->u_primgrp) <= 0 ||
|
|
fprintf(fp, "base_dir\t%s\n", up->u_basedir) <= 0 ||
|
|
fprintf(fp, "skel_dir\t%s\n", up->u_skeldir) <= 0 ||
|
|
fprintf(fp, "shell\t\t%s\n", up->u_shell) <= 0 ||
|
|
#ifdef EXTENSIONS
|
|
fprintf(fp, "class\t\t%s\n", up->u_class) <= 0 ||
|
|
#endif
|
|
fprintf(fp, "inactive\t%s\n", (up->u_inactive == NULL) ? UNSET_INACTIVE : up->u_inactive) <= 0 ||
|
|
fprintf(fp, "expire\t\t%s\n", (up->u_expire == NULL) ? UNSET_EXPIRY : up->u_expire) <= 0 ||
|
|
fprintf(fp, "preserve\t%s\n", (up->u_preserve == 0) ? "false" : "true") <= 0) {
|
|
warn("can't write to `%s'", CONFFILE);
|
|
ret = 0;
|
|
}
|
|
#ifdef EXTENSIONS
|
|
for (i = (up->u_defrc != up->u_rc) ? up->u_defrc : 0 ; i < up->u_rc ; i++) {
|
|
if (fprintf(fp, "range\t\t%d..%d\n", up->u_rv[i].r_from, up->u_rv[i].r_to) <= 0) {
|
|
warn("can't write to `%s'", CONFFILE);
|
|
ret = 0;
|
|
}
|
|
}
|
|
#endif
|
|
(void) fclose(fp);
|
|
if (ret) {
|
|
ret = ((rename(template, CONFFILE) == 0) && (chmod(CONFFILE, 0644) == 0));
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* read the defaults file */
|
|
static void
|
|
read_defaults(user_t *up)
|
|
{
|
|
struct stat st;
|
|
size_t lineno;
|
|
size_t len;
|
|
FILE *fp;
|
|
unsigned char *cp;
|
|
unsigned char *s;
|
|
|
|
memsave(&up->u_primgrp, DEF_GROUP, strlen(DEF_GROUP));
|
|
memsave(&up->u_basedir, DEF_BASEDIR, strlen(DEF_BASEDIR));
|
|
memsave(&up->u_skeldir, DEF_SKELDIR, strlen(DEF_SKELDIR));
|
|
memsave(&up->u_shell, DEF_SHELL, strlen(DEF_SHELL));
|
|
memsave(&up->u_comment, DEF_COMMENT, strlen(DEF_COMMENT));
|
|
#ifdef EXTENSIONS
|
|
memsave(&up->u_class, DEF_CLASS, strlen(DEF_CLASS));
|
|
#endif
|
|
up->u_rsize = 16;
|
|
up->u_defrc = 0;
|
|
NEWARRAY(range_t, up->u_rv, up->u_rsize, exit(1));
|
|
up->u_inactive = DEF_INACTIVE;
|
|
up->u_expire = DEF_EXPIRE;
|
|
if ((fp = fopen(CONFFILE, "r")) == NULL) {
|
|
if (stat(CONFFILE, &st) < 0 && !setdefaults(up)) {
|
|
warn("can't create `%s' defaults file", CONFFILE);
|
|
}
|
|
fp = fopen(CONFFILE, "r");
|
|
}
|
|
if (fp != NULL) {
|
|
while ((s = fparseln(fp, &len, &lineno, NULL, 0)) != NULL) {
|
|
if (strncmp(s, "group", 5) == 0) {
|
|
for (cp = s + 5 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
memsave(&up->u_primgrp, cp, strlen(cp));
|
|
} else if (strncmp(s, "base_dir", 8) == 0) {
|
|
for (cp = s + 8 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
memsave(&up->u_basedir, cp, strlen(cp));
|
|
} else if (strncmp(s, "skel_dir", 8) == 0) {
|
|
for (cp = s + 8 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
memsave(&up->u_skeldir, cp, strlen(cp));
|
|
} else if (strncmp(s, "shell", 5) == 0) {
|
|
for (cp = s + 5 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
memsave(&up->u_shell, cp, strlen(cp));
|
|
#ifdef EXTENSIONS
|
|
} else if (strncmp(s, "class", 5) == 0) {
|
|
for (cp = s + 5 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
memsave(&up->u_class, cp, strlen(cp));
|
|
#endif
|
|
} else if (strncmp(s, "inactive", 8) == 0) {
|
|
for (cp = s + 8 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
if (strcmp(cp, UNSET_INACTIVE) == 0) {
|
|
if (up->u_inactive) {
|
|
FREE(up->u_inactive);
|
|
}
|
|
up->u_inactive = NULL;
|
|
} else {
|
|
memsave(&up->u_inactive, cp, strlen(cp));
|
|
}
|
|
#ifdef EXTENSIONS
|
|
} else if (strncmp(s, "range", 5) == 0) {
|
|
for (cp = s + 5 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
(void) save_range(up, cp);
|
|
#endif
|
|
#ifdef EXTENSIONS
|
|
} else if (strncmp(s, "preserve", 8) == 0) {
|
|
for (cp = s + 8 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
up->u_preserve = (strncmp(cp, "true", 4) == 0) ? 1 :
|
|
(strncmp(cp, "yes", 3) == 0) ? 1 :
|
|
atoi(cp);
|
|
#endif
|
|
} else if (strncmp(s, "expire", 6) == 0) {
|
|
for (cp = s + 6 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
if (strcmp(cp, UNSET_EXPIRY) == 0) {
|
|
if (up->u_expire) {
|
|
FREE(up->u_expire);
|
|
}
|
|
up->u_expire = NULL;
|
|
} else {
|
|
memsave(&up->u_expire, cp, strlen(cp));
|
|
}
|
|
}
|
|
(void) free(s);
|
|
}
|
|
(void) fclose(fp);
|
|
}
|
|
if (up->u_rc == 0) {
|
|
up->u_rv[up->u_rc].r_from = DEF_LOWUID;
|
|
up->u_rv[up->u_rc].r_to = DEF_HIGHUID;
|
|
up->u_rc += 1;
|
|
}
|
|
up->u_defrc = up->u_rc;
|
|
}
|
|
|
|
/* return the next valid unused uid */
|
|
static int
|
|
getnextuid(int sync_uid_gid, int *uid, int low_uid, int high_uid)
|
|
{
|
|
for (*uid = low_uid ; *uid <= high_uid ; (*uid)++) {
|
|
if (getpwuid((uid_t)(*uid)) == NULL && *uid != NOBODY_UID) {
|
|
if (sync_uid_gid) {
|
|
if (getgrgid((gid_t)(*uid)) == NULL) {
|
|
return 1;
|
|
}
|
|
} else {
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* structure which defines a password type */
|
|
typedef struct passwd_type_t {
|
|
const char *type; /* optional type descriptor */
|
|
int desc_length; /* length of type descriptor */
|
|
int length; /* length of password */
|
|
const char *regex; /* regexp to output the password */
|
|
int re_sub; /* subscript of regexp to use */
|
|
} passwd_type_t;
|
|
|
|
static passwd_type_t passwd_types[] = {
|
|
{ "$sha1", 5, 28, "\\$[^$]+\\$[^$]+\\$[^$]+\\$(.*)", 1 }, /* SHA1 */
|
|
{ "$2a", 3, 54, "\\$[^$]+\\$[^$]+\\$(.*)", 1 }, /* Blowfish */
|
|
{ "$1", 2, 34, NULL, 0 }, /* MD5 */
|
|
{ "", 0, DES_Len,NULL, 0 }, /* standard DES */
|
|
{ NULL, -1, -1, NULL, 0 } /* none - terminate search */
|
|
};
|
|
|
|
/* return non-zero if it's a valid password - check length for cipher type */
|
|
static int
|
|
valid_password_length(char *newpasswd)
|
|
{
|
|
passwd_type_t *pwtp;
|
|
regmatch_t matchv[10];
|
|
regex_t r;
|
|
|
|
for (pwtp = passwd_types ; pwtp->desc_length >= 0 ; pwtp++) {
|
|
if (strncmp(newpasswd, pwtp->type, pwtp->desc_length) == 0) {
|
|
if (pwtp->regex == NULL) {
|
|
return strlen(newpasswd) == pwtp->length;
|
|
}
|
|
(void) regcomp(&r, pwtp->regex, REG_EXTENDED);
|
|
if (regexec(&r, newpasswd, 10, matchv, 0) == 0) {
|
|
regfree(&r);
|
|
return (int)(matchv[pwtp->re_sub].rm_eo - matchv[pwtp->re_sub].rm_so + 1) == pwtp->length;
|
|
}
|
|
regfree(&r);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* look for a valid time, return 0 if it was specified but bad */
|
|
static int
|
|
scantime(time_t *tp, char *s)
|
|
{
|
|
struct tm tm;
|
|
|
|
*tp = 0;
|
|
if (s != NULL) {
|
|
(void) memset(&tm, 0, sizeof(tm));
|
|
if (strptime(s, "%c", &tm) != NULL) {
|
|
*tp = mktime(&tm);
|
|
} else if (strptime(s, "%B %d %Y", &tm) != NULL) {
|
|
*tp = mktime(&tm);
|
|
} else if (isdigit((unsigned char) *s)) {
|
|
*tp = atoi(s);
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* add a user */
|
|
static int
|
|
adduser(char *login_name, user_t *up)
|
|
{
|
|
struct group *grp;
|
|
struct stat st;
|
|
time_t expire;
|
|
time_t inactive;
|
|
char password[PasswordLength + 1];
|
|
char home[MaxFileNameLen];
|
|
char buf[MaxFileNameLen];
|
|
int sync_uid_gid;
|
|
int masterfd;
|
|
int ptmpfd;
|
|
int gid;
|
|
int cc;
|
|
int i;
|
|
|
|
if (!valid_login(login_name, up->u_allow_samba)) {
|
|
errx(EXIT_FAILURE, "`%s' is not a valid login name", login_name);
|
|
}
|
|
if ((masterfd = open(_PATH_MASTERPASSWD, O_RDONLY)) < 0) {
|
|
err(EXIT_FAILURE, "can't open `%s'", _PATH_MASTERPASSWD);
|
|
}
|
|
if (flock(masterfd, LOCK_EX | LOCK_NB) < 0) {
|
|
err(EXIT_FAILURE, "can't lock `%s'", _PATH_MASTERPASSWD);
|
|
}
|
|
pw_init();
|
|
if ((ptmpfd = pw_lock(WAITSECS)) < 0) {
|
|
(void) close(masterfd);
|
|
err(EXIT_FAILURE, "can't obtain pw_lock");
|
|
}
|
|
while ((cc = read(masterfd, buf, sizeof(buf))) > 0) {
|
|
if (write(ptmpfd, buf, (size_t)(cc)) != cc) {
|
|
(void) close(masterfd);
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
err(EXIT_FAILURE, "short write to /etc/ptmp (not %d chars)", cc);
|
|
}
|
|
}
|
|
/* if no uid was specified, get next one in [low_uid..high_uid] range */
|
|
sync_uid_gid = (strcmp(up->u_primgrp, "=uid") == 0);
|
|
if (up->u_uid == -1) {
|
|
int got_id = 0;
|
|
|
|
/*
|
|
* Look for a free UID in the command line ranges (if any).
|
|
* These start after the ranges specified in the config file.
|
|
*/
|
|
for (i = up->u_defrc; !got_id && i < up->u_rc ; i++) {
|
|
got_id = getnextuid(sync_uid_gid, &up->u_uid,
|
|
up->u_rv[i].r_from, up->u_rv[i].r_to);
|
|
}
|
|
/*
|
|
* If there were no free UIDs in the command line ranges,
|
|
* try the ranges from the config file (there will always
|
|
* be at least one default).
|
|
*/
|
|
for (i = 0; !got_id && i < up->u_defrc; i++) {
|
|
got_id = getnextuid(sync_uid_gid, &up->u_uid,
|
|
up->u_rv[i].r_from, up->u_rv[i].r_to);
|
|
}
|
|
if (!got_id) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "can't get next uid for %d", up->u_uid);
|
|
}
|
|
}
|
|
/* check uid isn't already allocated */
|
|
if (!(up->u_flags & F_DUPUID) && getpwuid((uid_t)(up->u_uid)) != NULL) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "uid %d is already in use", up->u_uid);
|
|
}
|
|
/* if -g=uid was specified, check gid is unused */
|
|
if (sync_uid_gid) {
|
|
if (getgrgid((gid_t)(up->u_uid)) != NULL) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "gid %d is already in use", up->u_uid);
|
|
}
|
|
gid = up->u_uid;
|
|
} else if ((grp = getgrnam(up->u_primgrp)) != NULL) {
|
|
gid = grp->gr_gid;
|
|
} else if (is_number(up->u_primgrp) &&
|
|
(grp = getgrgid((gid_t)atoi(up->u_primgrp))) != NULL) {
|
|
gid = grp->gr_gid;
|
|
} else {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "group %s not found", up->u_primgrp);
|
|
}
|
|
/* check name isn't already in use */
|
|
if (!(up->u_flags & F_DUPUID) && getpwnam(login_name) != NULL) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "already a `%s' user", login_name);
|
|
}
|
|
if (up->u_flags & F_HOMEDIR) {
|
|
(void) strlcpy(home, up->u_home, sizeof(home));
|
|
} else {
|
|
/* if home directory hasn't been given, make it up */
|
|
(void) snprintf(home, sizeof(home), "%s/%s", up->u_basedir, login_name);
|
|
}
|
|
if (!scantime(&inactive, up->u_inactive)) {
|
|
warnx("Warning: inactive time `%s' invalid, account expiry off",
|
|
up->u_inactive);
|
|
}
|
|
if (!scantime(&expire, up->u_expire)) {
|
|
warnx("Warning: expire time `%s' invalid, password expiry off",
|
|
up->u_expire);
|
|
}
|
|
if (lstat(home, &st) < 0 && !(up->u_flags & F_MKDIR)) {
|
|
warnx("Warning: home directory `%s' doesn't exist, and -m was not specified",
|
|
home);
|
|
}
|
|
password[sizeof(password) - 1] = '\0';
|
|
if (up->u_password != NULL && valid_password_length(up->u_password)) {
|
|
(void) strlcpy(password, up->u_password, sizeof(password));
|
|
} else {
|
|
(void) memset(password, '*', DES_Len);
|
|
password[DES_Len] = 0;
|
|
if (up->u_password != NULL) {
|
|
warnx("Password `%s' is invalid: setting it to `%s'",
|
|
up->u_password, password);
|
|
}
|
|
}
|
|
cc = snprintf(buf, sizeof(buf), "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n",
|
|
login_name,
|
|
password,
|
|
up->u_uid,
|
|
gid,
|
|
#ifdef EXTENSIONS
|
|
up->u_class,
|
|
#else
|
|
"",
|
|
#endif
|
|
(long) inactive,
|
|
(long) expire,
|
|
up->u_comment,
|
|
home,
|
|
up->u_shell);
|
|
if (write(ptmpfd, buf, (size_t) cc) != cc) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
err(EXIT_FAILURE, "can't add `%s'", buf);
|
|
}
|
|
if (up->u_flags & F_MKDIR) {
|
|
if (lstat(home, &st) == 0) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "home directory `%s' already exists", home);
|
|
} else {
|
|
if (asystem("%s -p %s", MKDIR, home) != 0) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
err(EXIT_FAILURE, "can't mkdir `%s'", home);
|
|
}
|
|
(void) copydotfiles(up->u_skeldir, up->u_uid, gid, home);
|
|
}
|
|
}
|
|
if (strcmp(up->u_primgrp, "=uid") == 0 &&
|
|
getgrnam(login_name) == NULL &&
|
|
!creategid(login_name, gid, login_name)) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "can't create gid %d for login name %s", gid, login_name);
|
|
}
|
|
if (up->u_groupc > 0 && !append_group(login_name, up->u_groupc, up->u_groupv)) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "can't append `%s' to new groups", login_name);
|
|
}
|
|
(void) close(ptmpfd);
|
|
#if PW_MKDB_ARGC == 2
|
|
if (pw_mkdb(login_name, 0) < 0) {
|
|
pw_abort();
|
|
err(EXIT_FAILURE, "pw_mkdb failed");
|
|
}
|
|
#else
|
|
if (pw_mkdb() < 0) {
|
|
pw_abort();
|
|
err(EXIT_FAILURE, "pw_mkdb failed");
|
|
}
|
|
#endif
|
|
syslog(LOG_INFO, "new user added: name=%s, uid=%d, gid=%d, home=%s, shell=%s",
|
|
login_name, up->u_uid, gid, home, up->u_shell);
|
|
return 1;
|
|
}
|
|
|
|
/* remove a user from the groups file */
|
|
static int
|
|
rm_user_from_groups(char *login_name)
|
|
{
|
|
struct stat st;
|
|
regmatch_t matchv[10];
|
|
regex_t r;
|
|
FILE *from;
|
|
FILE *to;
|
|
char line[MaxEntryLen];
|
|
char buf[MaxEntryLen];
|
|
char f[MaxFileNameLen];
|
|
int fd;
|
|
int cc;
|
|
int sc;
|
|
|
|
(void) snprintf(line, sizeof(line), "(:|,)(%s)(,|$)", login_name);
|
|
if (regcomp(&r, line, REG_EXTENDED|REG_NEWLINE) != 0) {
|
|
warn("can't compile regular expression `%s'", line);
|
|
return 0;
|
|
}
|
|
if ((from = fopen(_PATH_GROUP, "r")) == NULL) {
|
|
warn("can't remove gid for `%s': can't open `%s'", login_name, _PATH_GROUP);
|
|
return 0;
|
|
}
|
|
if (flock(fileno(from), LOCK_EX | LOCK_NB) < 0) {
|
|
warn("can't lock `%s'", _PATH_GROUP);
|
|
}
|
|
(void) fstat(fileno(from), &st);
|
|
(void) snprintf(f, sizeof(f), "%s.XXXXXX", _PATH_GROUP);
|
|
if ((fd = mkstemp(f)) < 0) {
|
|
(void) fclose(from);
|
|
warn("can't create gid: mkstemp failed");
|
|
return 0;
|
|
}
|
|
if ((to = fdopen(fd, "w")) == NULL) {
|
|
(void) fclose(from);
|
|
(void) close(fd);
|
|
(void) unlink(f);
|
|
warn("can't create gid: fdopen `%s' failed", f);
|
|
return 0;
|
|
}
|
|
while (fgets(buf, sizeof(buf), from) > 0) {
|
|
cc = strlen(buf);
|
|
if (regexec(&r, buf, 10, matchv, 0) == 0) {
|
|
if (buf[(int)matchv[1].rm_so] == ',') {
|
|
matchv[2].rm_so = matchv[1].rm_so;
|
|
} else if (matchv[2].rm_eo != matchv[3].rm_eo) {
|
|
matchv[2].rm_eo = matchv[3].rm_eo;
|
|
}
|
|
cc -= (int) matchv[2].rm_eo;
|
|
sc = (int) matchv[2].rm_so;
|
|
if (fwrite(buf, sizeof(char), sc, to) != sc ||
|
|
fwrite(&buf[(int)matchv[2].rm_eo], sizeof(char), cc, to) != cc) {
|
|
(void) fclose(from);
|
|
(void) close(fd);
|
|
(void) unlink(f);
|
|
warn("can't create gid: short write to `%s'", f);
|
|
return 0;
|
|
}
|
|
} else if (fwrite(buf, sizeof(char), (unsigned) cc, to) != cc) {
|
|
(void) fclose(from);
|
|
(void) close(fd);
|
|
(void) unlink(f);
|
|
warn("can't create gid: short write to `%s'", f);
|
|
return 0;
|
|
}
|
|
}
|
|
(void) fclose(from);
|
|
(void) fclose(to);
|
|
if (rename(f, _PATH_GROUP) < 0) {
|
|
(void) unlink(f);
|
|
warn("can't create gid: can't rename `%s' to `%s'", f, _PATH_GROUP);
|
|
return 0;
|
|
}
|
|
(void) chmod(_PATH_GROUP, st.st_mode & 07777);
|
|
return 1;
|
|
}
|
|
|
|
/* check that the user or group is local, not from YP/NIS */
|
|
static int
|
|
is_local(char *name, const char *file)
|
|
{
|
|
FILE *fp;
|
|
char buf[MaxEntryLen];
|
|
int len;
|
|
int ret;
|
|
|
|
if ((fp = fopen(file, "r")) == NULL) {
|
|
err(EXIT_FAILURE, "can't open `%s'", file);
|
|
}
|
|
len = strlen(name);
|
|
for (ret = 0 ; fgets(buf, sizeof(buf), fp) != NULL ; ) {
|
|
if (strncmp(buf, name, len) == 0 && buf[len] == ':') {
|
|
ret = 1;
|
|
break;
|
|
}
|
|
}
|
|
(void) fclose(fp);
|
|
return ret;
|
|
}
|
|
|
|
/* modify a user */
|
|
static int
|
|
moduser(char *login_name, char *newlogin, user_t *up, int allow_samba)
|
|
{
|
|
struct passwd *pwp;
|
|
struct group *grp;
|
|
const char *homedir;
|
|
size_t colonc;
|
|
size_t loginc;
|
|
size_t len;
|
|
size_t cc;
|
|
FILE *master;
|
|
char newdir[MaxFileNameLen];
|
|
char buf[MaxEntryLen];
|
|
char *colon;
|
|
int masterfd;
|
|
int ptmpfd;
|
|
int error;
|
|
|
|
if (!valid_login(newlogin, allow_samba)) {
|
|
errx(EXIT_FAILURE, "`%s' is not a valid login name", login_name);
|
|
}
|
|
if ((pwp = getpwnam(login_name)) == NULL) {
|
|
errx(EXIT_FAILURE, "No such user `%s'", login_name);
|
|
}
|
|
if (!is_local(login_name, _PATH_MASTERPASSWD)) {
|
|
errx(EXIT_FAILURE, "User `%s' must be a local user", login_name);
|
|
}
|
|
/* keep dir name in case we need it for '-m' */
|
|
homedir = pwp->pw_dir;
|
|
|
|
if ((masterfd = open(_PATH_MASTERPASSWD, O_RDONLY)) < 0) {
|
|
err(EXIT_FAILURE, "can't open `%s'", _PATH_MASTERPASSWD);
|
|
}
|
|
if (flock(masterfd, LOCK_EX | LOCK_NB) < 0) {
|
|
err(EXIT_FAILURE, "can't lock `%s'", _PATH_MASTERPASSWD);
|
|
}
|
|
pw_init();
|
|
if ((ptmpfd = pw_lock(WAITSECS)) < 0) {
|
|
(void) close(masterfd);
|
|
err(EXIT_FAILURE, "can't obtain pw_lock");
|
|
}
|
|
if ((master = fdopen(masterfd, "r")) == NULL) {
|
|
(void) close(masterfd);
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
err(EXIT_FAILURE, "can't fdopen fd for %s", _PATH_MASTERPASSWD);
|
|
}
|
|
if (up != NULL) {
|
|
if (up->u_flags & F_USERNAME) {
|
|
/* if changing name, check new name isn't already in use */
|
|
if (strcmp(login_name, newlogin) != 0 && getpwnam(newlogin) != NULL) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "already a `%s' user", newlogin);
|
|
}
|
|
pwp->pw_name = newlogin;
|
|
|
|
/*
|
|
* Provide a new directory name in case the
|
|
* home directory is to be moved.
|
|
*/
|
|
if (up->u_flags & F_MKDIR) {
|
|
snprintf(newdir, sizeof(newdir), "%s/%s", up->u_basedir, newlogin);
|
|
pwp->pw_dir = newdir;
|
|
}
|
|
}
|
|
if (up->u_flags & F_PASSWORD) {
|
|
if (up->u_password != NULL) {
|
|
if (!valid_password_length(up->u_password)) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "Invalid password: `%s'",
|
|
up->u_password);
|
|
}
|
|
pwp->pw_passwd = up->u_password;
|
|
}
|
|
}
|
|
if (up->u_flags & F_UID) {
|
|
/* check uid isn't already allocated */
|
|
if (!(up->u_flags & F_DUPUID) && getpwuid((uid_t)(up->u_uid)) != NULL) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "uid %d is already in use", up->u_uid);
|
|
}
|
|
pwp->pw_uid = up->u_uid;
|
|
}
|
|
if (up->u_flags & F_GROUP) {
|
|
/* if -g=uid was specified, check gid is unused */
|
|
if (strcmp(up->u_primgrp, "=uid") == 0) {
|
|
if (getgrgid((gid_t)(up->u_uid)) != NULL) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "gid %d is already in use", up->u_uid);
|
|
}
|
|
pwp->pw_gid = up->u_uid;
|
|
} else if ((grp = getgrnam(up->u_primgrp)) != NULL) {
|
|
pwp->pw_gid = grp->gr_gid;
|
|
} else if (is_number(up->u_primgrp) &&
|
|
(grp = getgrgid((gid_t)atoi(up->u_primgrp))) != NULL) {
|
|
pwp->pw_gid = grp->gr_gid;
|
|
} else {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "group %s not found", up->u_primgrp);
|
|
}
|
|
}
|
|
if (up->u_flags & F_INACTIVE) {
|
|
if (!scantime(&pwp->pw_change, up->u_inactive)) {
|
|
warnx("Warning: inactive time `%s' invalid, password expiry off",
|
|
up->u_inactive);
|
|
}
|
|
}
|
|
if (up->u_flags & F_EXPIRE) {
|
|
if (!scantime(&pwp->pw_expire, up->u_expire)) {
|
|
warnx("Warning: expire time `%s' invalid, password expiry off",
|
|
up->u_expire);
|
|
}
|
|
}
|
|
if (up->u_flags & F_COMMENT)
|
|
pwp->pw_gecos = up->u_comment;
|
|
if (up->u_flags & F_HOMEDIR)
|
|
pwp->pw_dir = up->u_home;
|
|
if (up->u_flags & F_SHELL)
|
|
pwp->pw_shell = up->u_shell;
|
|
#ifdef EXTENSIONS
|
|
if (up->u_flags & F_CLASS)
|
|
pwp->pw_class = up->u_class;
|
|
#endif
|
|
}
|
|
loginc = strlen(login_name);
|
|
while (fgets(buf, sizeof(buf), master) != NULL) {
|
|
if ((colon = strchr(buf, ':')) == NULL) {
|
|
warnx("Malformed entry `%s'. Skipping", buf);
|
|
continue;
|
|
}
|
|
colonc = (size_t)(colon - buf);
|
|
if (strncmp(login_name, buf, loginc) == 0 && loginc == colonc) {
|
|
if (up != NULL) {
|
|
len = snprintf(buf, sizeof(buf), "%s:%s:%d:%d:"
|
|
#ifdef EXTENSIONS
|
|
"%s"
|
|
#endif
|
|
":%ld:%ld:%s:%s:%s\n",
|
|
newlogin,
|
|
pwp->pw_passwd,
|
|
pwp->pw_uid,
|
|
pwp->pw_gid,
|
|
#ifdef EXTENSIONS
|
|
pwp->pw_class,
|
|
#endif
|
|
(long)pwp->pw_change,
|
|
(long)pwp->pw_expire,
|
|
pwp->pw_gecos,
|
|
pwp->pw_dir,
|
|
pwp->pw_shell);
|
|
if (write(ptmpfd, buf, len) != len) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
err(EXIT_FAILURE, "can't add `%s'", buf);
|
|
}
|
|
}
|
|
} else {
|
|
len = strlen(buf);
|
|
if ((cc = write(ptmpfd, buf, len)) != len) {
|
|
(void) close(masterfd);
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
err(EXIT_FAILURE, "short write to /etc/ptmp (%lld not %lld chars)",
|
|
(long long)cc,
|
|
(long long)len);
|
|
}
|
|
}
|
|
}
|
|
if (up != NULL) {
|
|
if ((up->u_flags & F_MKDIR) &&
|
|
asystem("%s %s %s", MV, homedir, pwp->pw_dir) != 0) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
err(EXIT_FAILURE, "can't move `%s' to `%s'",
|
|
homedir, pwp->pw_dir);
|
|
}
|
|
if (up->u_groupc > 0 &&
|
|
!append_group(newlogin, up->u_groupc, up->u_groupv)) {
|
|
(void) close(ptmpfd);
|
|
pw_abort();
|
|
errx(EXIT_FAILURE, "can't append `%s' to new groups",
|
|
newlogin);
|
|
}
|
|
}
|
|
(void) close(ptmpfd);
|
|
#if PW_MKDB_ARGC == 2
|
|
if (up != NULL && strcmp(login_name, newlogin) == 0) {
|
|
error = pw_mkdb(login_name, 0);
|
|
} else {
|
|
error = pw_mkdb(NULL, 0);
|
|
}
|
|
#else
|
|
error = pw_mkdb();
|
|
#endif
|
|
if (error < 0) {
|
|
pw_abort();
|
|
err(EXIT_FAILURE, "pw_mkdb failed");
|
|
}
|
|
if (up == NULL) {
|
|
syslog(LOG_INFO, "user removed: name=%s", login_name);
|
|
} else if (strcmp(login_name, newlogin) == 0) {
|
|
syslog(LOG_INFO, "user information modified: name=%s, uid=%d, gid=%d, home=%s, shell=%s",
|
|
login_name, pwp->pw_uid, pwp->pw_gid, pwp->pw_dir, pwp->pw_shell);
|
|
} else {
|
|
syslog(LOG_INFO, "user information modified: name=%s, new name=%s, uid=%d, gid=%d, home=%s, shell=%s",
|
|
login_name, newlogin, pwp->pw_uid, pwp->pw_gid, pwp->pw_dir, pwp->pw_shell);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
#ifdef EXTENSIONS
|
|
/* see if we can find out the user struct */
|
|
static struct passwd *
|
|
find_user_info(char *name)
|
|
{
|
|
struct passwd *pwp;
|
|
|
|
if ((pwp = getpwnam(name)) != NULL) {
|
|
return pwp;
|
|
}
|
|
if (is_number(name) && (pwp = getpwuid((uid_t)atoi(name))) != NULL) {
|
|
return pwp;
|
|
}
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
#ifdef EXTENSIONS
|
|
/* see if we can find out the group struct */
|
|
static struct group *
|
|
find_group_info(char *name)
|
|
{
|
|
struct group *grp;
|
|
|
|
if ((grp = getgrnam(name)) != NULL) {
|
|
return grp;
|
|
}
|
|
if (is_number(name) && (grp = getgrgid((gid_t)atoi(name))) != NULL) {
|
|
return grp;
|
|
}
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
/* print out usage message, and then exit */
|
|
void
|
|
usermgmt_usage(const char *prog)
|
|
{
|
|
if (strcmp(prog, "useradd") == 0) {
|
|
(void) fprintf(stderr, "usage: %s -D [-b basedir] [-e expiry] "
|
|
"[-f inactive] [-g group]\n\t[-r lowuid..highuid] "
|
|
"[-s shell] [-L class]\n", prog);
|
|
(void) fprintf(stderr, "usage: %s [-G group] [-b basedir] "
|
|
"[-c comment] [-d homedir] [-e expiry]\n\t[-f inactive] "
|
|
"[-g group] [-k skeletondir] [-m] [-o] [-p password]\n"
|
|
"\t[-r lowuid..highuid] [-s shell]\n\t[-u uid] [-v] user\n",
|
|
prog);
|
|
} else if (strcmp(prog, "usermod") == 0) {
|
|
(void) fprintf(stderr, "usage: %s [-G group] [-c comment] "
|
|
"[-d homedir] [-e expire] [-f inactive]\n\t[-g group] "
|
|
"[-l newname] [-m] [-o] [-p password] [-s shell] [-u uid]\n"
|
|
"\t[-L class] [-v] user\n", prog);
|
|
} else if (strcmp(prog, "userdel") == 0) {
|
|
(void) fprintf(stderr, "usage: %s -D [-p preserve]\n", prog);
|
|
(void) fprintf(stderr,
|
|
"usage: %s [-p preserve] [-r] [-v] user\n", prog);
|
|
#ifdef EXTENSIONS
|
|
} else if (strcmp(prog, "userinfo") == 0) {
|
|
(void) fprintf(stderr, "usage: %s [-e] [-v] user\n", prog);
|
|
#endif
|
|
} else if (strcmp(prog, "groupadd") == 0) {
|
|
(void) fprintf(stderr, "usage: %s [-g gid] [-o]"
|
|
" [-r lowgid..highgid] [-v] group\n", prog);
|
|
} else if (strcmp(prog, "groupdel") == 0) {
|
|
(void) fprintf(stderr, "usage: %s [-v] group\n", prog);
|
|
} else if (strcmp(prog, "groupmod") == 0) {
|
|
(void) fprintf(stderr,
|
|
"usage: %s [-g gid] [-o] [-n newname] [-v] group\n", prog);
|
|
} else if (strcmp(prog, "user") == 0 || strcmp(prog, "group") == 0) {
|
|
(void) fprintf(stderr,
|
|
"usage: %s ( add | del | mod | info ) ...\n", prog);
|
|
#ifdef EXTENSIONS
|
|
} else if (strcmp(prog, "groupinfo") == 0) {
|
|
(void) fprintf(stderr, "usage: %s [-e] [-v] group\n", prog);
|
|
#endif
|
|
}
|
|
exit(EXIT_FAILURE);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define ADD_OPT_EXTENSIONS "p:r:vL:S"
|
|
#else
|
|
#define ADD_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
int
|
|
useradd(int argc, char **argv)
|
|
{
|
|
user_t u;
|
|
int defaultfield;
|
|
int bigD;
|
|
int c;
|
|
#ifdef EXTENSIONS
|
|
int i;
|
|
#endif
|
|
|
|
(void) memset(&u, 0, sizeof(u));
|
|
read_defaults(&u);
|
|
u.u_uid = -1;
|
|
defaultfield = bigD = 0;
|
|
while ((c = getopt(argc, argv, "DG:b:c:d:e:f:g:k:mou:s:" ADD_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
case 'D':
|
|
bigD = 1;
|
|
break;
|
|
case 'G':
|
|
while ((u.u_groupv[u.u_groupc] = strsep(&optarg, ",")) != NULL &&
|
|
u.u_groupc < NGROUPS_MAX) {
|
|
if (u.u_groupv[u.u_groupc][0] != 0) {
|
|
u.u_groupc++;
|
|
}
|
|
}
|
|
if (optarg != NULL) {
|
|
warnx("Truncated list of secondary groups to %d entries", NGROUPS_MAX);
|
|
}
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'S':
|
|
u.u_allow_samba = 1;
|
|
break;
|
|
#endif
|
|
case 'b':
|
|
defaultfield = 1;
|
|
memsave(&u.u_basedir, optarg, strlen(optarg));
|
|
break;
|
|
case 'c':
|
|
memsave(&u.u_comment, optarg, strlen(optarg));
|
|
break;
|
|
case 'd':
|
|
memsave(&u.u_home, optarg, strlen(optarg));
|
|
u.u_flags |= F_HOMEDIR;
|
|
break;
|
|
case 'e':
|
|
defaultfield = 1;
|
|
memsave(&u.u_expire, optarg, strlen(optarg));
|
|
break;
|
|
case 'f':
|
|
defaultfield = 1;
|
|
memsave(&u.u_inactive, optarg, strlen(optarg));
|
|
break;
|
|
case 'g':
|
|
defaultfield = 1;
|
|
memsave(&u.u_primgrp, optarg, strlen(optarg));
|
|
break;
|
|
case 'k':
|
|
defaultfield = 1;
|
|
memsave(&u.u_skeldir, optarg, strlen(optarg));
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'L':
|
|
defaultfield = 1;
|
|
memsave(&u.u_class, optarg, strlen(optarg));
|
|
break;
|
|
#endif
|
|
case 'm':
|
|
u.u_flags |= F_MKDIR;
|
|
break;
|
|
case 'o':
|
|
u.u_flags |= F_DUPUID;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'p':
|
|
memsave(&u.u_password, optarg, strlen(optarg));
|
|
break;
|
|
#endif
|
|
#ifdef EXTENSIONS
|
|
case 'r':
|
|
defaultfield = 1;
|
|
(void) save_range(&u, optarg);
|
|
break;
|
|
#endif
|
|
case 's':
|
|
defaultfield = 1;
|
|
memsave(&u.u_shell, optarg, strlen(optarg));
|
|
break;
|
|
case 'u':
|
|
if (!is_number(optarg)) {
|
|
errx(EXIT_FAILURE, "When using [-u uid], the uid must be numeric");
|
|
}
|
|
u.u_uid = atoi(optarg);
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
default:
|
|
usermgmt_usage("useradd");
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
if (bigD) {
|
|
if (defaultfield) {
|
|
checkeuid();
|
|
return setdefaults(&u) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
(void) printf("group\t\t%s\n", u.u_primgrp);
|
|
(void) printf("base_dir\t%s\n", u.u_basedir);
|
|
(void) printf("skel_dir\t%s\n", u.u_skeldir);
|
|
(void) printf("shell\t\t%s\n", u.u_shell);
|
|
#ifdef EXTENSIONS
|
|
(void) printf("class\t\t%s\n", u.u_class);
|
|
#endif
|
|
(void) printf("inactive\t%s\n", (u.u_inactive == NULL) ? UNSET_INACTIVE : u.u_inactive);
|
|
(void) printf("expire\t\t%s\n", (u.u_expire == NULL) ? UNSET_EXPIRY : u.u_expire);
|
|
#ifdef EXTENSIONS
|
|
for (i = 0 ; i < u.u_rc ; i++) {
|
|
(void) printf("range\t\t%d..%d\n", u.u_rv[i].r_from, u.u_rv[i].r_to);
|
|
}
|
|
#endif
|
|
return EXIT_SUCCESS;
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc != 1) {
|
|
usermgmt_usage("useradd");
|
|
}
|
|
checkeuid();
|
|
openlog("useradd", LOG_PID, LOG_USER);
|
|
return adduser(*argv, &u) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define MOD_OPT_EXTENSIONS "p:vL:S"
|
|
#else
|
|
#define MOD_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
int
|
|
usermod(int argc, char **argv)
|
|
{
|
|
user_t u;
|
|
char newuser[MaxUserNameLen + 1];
|
|
int c, have_new_user;
|
|
|
|
(void) memset(&u, 0, sizeof(u));
|
|
(void) memset(newuser, 0, sizeof(newuser));
|
|
read_defaults(&u);
|
|
have_new_user = 0;
|
|
while ((c = getopt(argc, argv, "G:c:d:e:f:g:l:mos:u:" MOD_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
case 'G':
|
|
while ((u.u_groupv[u.u_groupc] = strsep(&optarg, ",")) != NULL &&
|
|
u.u_groupc < NGROUPS_MAX) {
|
|
if (u.u_groupv[u.u_groupc][0] != 0) {
|
|
u.u_groupc++;
|
|
}
|
|
}
|
|
if (optarg != NULL) {
|
|
warnx("Truncated list of secondary groups to %d entries", NGROUPS_MAX);
|
|
}
|
|
u.u_flags |= F_SECGROUP;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'S':
|
|
u.u_allow_samba = 1;
|
|
break;
|
|
#endif
|
|
case 'c':
|
|
memsave(&u.u_comment, optarg, strlen(optarg));
|
|
u.u_flags |= F_COMMENT;
|
|
break;
|
|
case 'd':
|
|
memsave(&u.u_home, optarg, strlen(optarg));
|
|
u.u_flags |= F_HOMEDIR;
|
|
break;
|
|
case 'e':
|
|
memsave(&u.u_expire, optarg, strlen(optarg));
|
|
u.u_flags |= F_EXPIRE;
|
|
break;
|
|
case 'f':
|
|
memsave(&u.u_inactive, optarg, strlen(optarg));
|
|
u.u_flags |= F_INACTIVE;
|
|
break;
|
|
case 'g':
|
|
memsave(&u.u_primgrp, optarg, strlen(optarg));
|
|
u.u_flags |= F_GROUP;
|
|
break;
|
|
case 'l':
|
|
(void) strlcpy(newuser, optarg, sizeof(newuser));
|
|
have_new_user = 1;
|
|
u.u_flags |= F_USERNAME;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'L':
|
|
memsave(&u.u_class, optarg, strlen(optarg));
|
|
u.u_flags |= F_CLASS;
|
|
break;
|
|
#endif
|
|
case 'm':
|
|
u.u_flags |= F_MKDIR;
|
|
break;
|
|
case 'o':
|
|
u.u_flags |= F_DUPUID;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'p':
|
|
memsave(&u.u_password, optarg, strlen(optarg));
|
|
u.u_flags |= F_PASSWORD;
|
|
break;
|
|
#endif
|
|
case 's':
|
|
memsave(&u.u_shell, optarg, strlen(optarg));
|
|
u.u_flags |= F_SHELL;
|
|
break;
|
|
case 'u':
|
|
if (!is_number(optarg)) {
|
|
errx(EXIT_FAILURE, "When using [-u uid], the uid must be numeric");
|
|
}
|
|
u.u_uid = atoi(optarg);
|
|
u.u_flags |= F_UID;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
default:
|
|
usermgmt_usage("usermod");
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
if ((u.u_flags & F_MKDIR) && !(u.u_flags & F_HOMEDIR) &&
|
|
!(u.u_flags & F_USERNAME)) {
|
|
warnx("option 'm' useless without 'd' or 'l' -- ignored");
|
|
u.u_flags &= ~F_MKDIR;
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc != 1) {
|
|
usermgmt_usage("usermod");
|
|
}
|
|
checkeuid();
|
|
openlog("usermod", LOG_PID, LOG_USER);
|
|
return moduser(*argv, (have_new_user) ? newuser : *argv, &u, u.u_allow_samba) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define DEL_OPT_EXTENSIONS "Dp:vS"
|
|
#else
|
|
#define DEL_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
int
|
|
userdel(int argc, char **argv)
|
|
{
|
|
struct passwd *pwp;
|
|
user_t u;
|
|
char password[PasswordLength + 1];
|
|
int defaultfield;
|
|
int rmhome;
|
|
int bigD;
|
|
int c;
|
|
|
|
(void) memset(&u, 0, sizeof(u));
|
|
read_defaults(&u);
|
|
defaultfield = bigD = rmhome = 0;
|
|
while ((c = getopt(argc, argv, "r" DEL_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
#ifdef EXTENSIONS
|
|
case 'D':
|
|
bigD = 1;
|
|
break;
|
|
#endif
|
|
#ifdef EXTENSIONS
|
|
case 'S':
|
|
u.u_allow_samba = 1;
|
|
break;
|
|
#endif
|
|
#ifdef EXTENSIONS
|
|
case 'p':
|
|
defaultfield = 1;
|
|
u.u_preserve = (strcmp(optarg, "true") == 0) ? 1 :
|
|
(strcmp(optarg, "yes") == 0) ? 1 :
|
|
atoi(optarg);
|
|
break;
|
|
#endif
|
|
case 'r':
|
|
rmhome = 1;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
default:
|
|
usermgmt_usage("userdel");
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
#ifdef EXTENSIONS
|
|
if (bigD) {
|
|
if (defaultfield) {
|
|
checkeuid();
|
|
return setdefaults(&u) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
(void) printf("preserve\t%s\n", (u.u_preserve) ? "true" : "false");
|
|
return EXIT_SUCCESS;
|
|
}
|
|
#endif
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc != 1) {
|
|
usermgmt_usage("userdel");
|
|
}
|
|
checkeuid();
|
|
if ((pwp = getpwnam(*argv)) == NULL) {
|
|
warnx("No such user `%s'", *argv);
|
|
return EXIT_FAILURE;
|
|
}
|
|
if (rmhome)
|
|
(void)removehomedir(pwp->pw_name, pwp->pw_uid, pwp->pw_dir);
|
|
if (u.u_preserve) {
|
|
u.u_flags |= F_SHELL;
|
|
memsave(&u.u_shell, NOLOGIN, strlen(NOLOGIN));
|
|
(void) memset(password, '*', DES_Len);
|
|
password[DES_Len] = 0;
|
|
memsave(&u.u_password, password, strlen(password));
|
|
u.u_flags |= F_PASSWORD;
|
|
openlog("userdel", LOG_PID, LOG_USER);
|
|
return moduser(*argv, *argv, &u, u.u_allow_samba) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
if (!rm_user_from_groups(*argv)) {
|
|
return 0;
|
|
}
|
|
openlog("userdel", LOG_PID, LOG_USER);
|
|
return moduser(*argv, *argv, NULL, u.u_allow_samba) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define GROUP_ADD_OPT_EXTENSIONS "r:v"
|
|
#else
|
|
#define GROUP_ADD_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
/* add a group */
|
|
int
|
|
groupadd(int argc, char **argv)
|
|
{
|
|
int dupgid;
|
|
int gid;
|
|
int c;
|
|
int lowgid;
|
|
int highgid;
|
|
|
|
gid = -1;
|
|
dupgid = 0;
|
|
lowgid = LowGid;
|
|
highgid = HighGid;
|
|
while ((c = getopt(argc, argv, "g:o" GROUP_ADD_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
case 'g':
|
|
if (!is_number(optarg)) {
|
|
errx(EXIT_FAILURE, "When using [-g gid], the gid must be numeric");
|
|
}
|
|
gid = atoi(optarg);
|
|
break;
|
|
case 'o':
|
|
dupgid = 1;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'r':
|
|
if (sscanf(optarg, "%d..%d", &lowgid, &highgid) != 2) {
|
|
errx(EXIT_FAILURE, "Bad range `%s`", optarg);
|
|
}
|
|
break;
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
default:
|
|
usermgmt_usage("groupadd");
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc != 1) {
|
|
usermgmt_usage("groupadd");
|
|
}
|
|
checkeuid();
|
|
if (gid < 0 && !getnextgid(&gid, lowgid, highgid)) {
|
|
err(EXIT_FAILURE, "can't add group: can't get next gid");
|
|
}
|
|
if (!dupgid && getgrgid((gid_t) gid) != NULL) {
|
|
errx(EXIT_FAILURE, "can't add group: gid %d is a duplicate", gid);
|
|
}
|
|
if (!valid_group(*argv)) {
|
|
warnx("warning - invalid group name `%s'", *argv);
|
|
}
|
|
openlog("groupadd", LOG_PID, LOG_USER);
|
|
if (!creategid(*argv, gid, "")) {
|
|
errx(EXIT_FAILURE, "can't add group: problems with %s file", _PATH_GROUP);
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define GROUP_DEL_OPT_EXTENSIONS "v"
|
|
#else
|
|
#define GROUP_DEL_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
/* remove a group */
|
|
int
|
|
groupdel(int argc, char **argv)
|
|
{
|
|
int c;
|
|
|
|
while ((c = getopt(argc, argv, "" GROUP_DEL_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
default:
|
|
usermgmt_usage("groupdel");
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc != 1) {
|
|
usermgmt_usage("groupdel");
|
|
}
|
|
checkeuid();
|
|
openlog("groupdel", LOG_PID, LOG_USER);
|
|
if (!modify_gid(*argv, NULL)) {
|
|
err(EXIT_FAILURE, "can't change %s file", _PATH_GROUP);
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define GROUP_MOD_OPT_EXTENSIONS "v"
|
|
#else
|
|
#define GROUP_MOD_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
/* modify a group */
|
|
int
|
|
groupmod(int argc, char **argv)
|
|
{
|
|
struct group *grp;
|
|
char buf[MaxEntryLen];
|
|
char *newname;
|
|
char **cpp;
|
|
int dupgid;
|
|
int gid;
|
|
int cc;
|
|
int c;
|
|
|
|
gid = -1;
|
|
dupgid = 0;
|
|
newname = NULL;
|
|
while ((c = getopt(argc, argv, "g:on:" GROUP_MOD_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
case 'g':
|
|
if (!is_number(optarg)) {
|
|
errx(EXIT_FAILURE, "When using [-g gid], the gid must be numeric");
|
|
}
|
|
gid = atoi(optarg);
|
|
break;
|
|
case 'o':
|
|
dupgid = 1;
|
|
break;
|
|
case 'n':
|
|
memsave(&newname, optarg, strlen(optarg));
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
default:
|
|
usermgmt_usage("groupmod");
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc != 1) {
|
|
usermgmt_usage("groupmod");
|
|
}
|
|
checkeuid();
|
|
if (gid < 0 && newname == NULL) {
|
|
err(EXIT_FAILURE, "Nothing to change");
|
|
}
|
|
if (dupgid && gid < 0) {
|
|
err(EXIT_FAILURE, "Duplicate which gid?");
|
|
}
|
|
if ((grp = getgrnam(*argv)) == NULL) {
|
|
err(EXIT_FAILURE, "can't find group `%s' to modify", *argv);
|
|
}
|
|
if (!is_local(*argv, _PATH_GROUP)) {
|
|
errx(EXIT_FAILURE, "Group `%s' must be a local group", *argv);
|
|
}
|
|
if (newname != NULL && !valid_group(newname)) {
|
|
warn("warning - invalid group name `%s'", newname);
|
|
}
|
|
cc = snprintf(buf, sizeof(buf), "%s:%s:%d:",
|
|
(newname) ? newname : grp->gr_name,
|
|
grp->gr_passwd,
|
|
(gid < 0) ? grp->gr_gid : gid);
|
|
for (cpp = grp->gr_mem ; *cpp && cc < sizeof(buf) ; cpp++) {
|
|
cc += snprintf(&buf[cc], sizeof(buf) - cc, "%s%s", *cpp,
|
|
(cpp[1] == NULL) ? "" : ",");
|
|
}
|
|
cc += snprintf(&buf[cc], sizeof(buf) - cc, "\n");
|
|
openlog("groupmod", LOG_PID, LOG_USER);
|
|
if (!modify_gid(*argv, buf)) {
|
|
err(EXIT_FAILURE, "can't change %s file", _PATH_GROUP);
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
/* display user information */
|
|
int
|
|
userinfo(int argc, char **argv)
|
|
{
|
|
struct passwd *pwp;
|
|
struct group *grp;
|
|
char buf[MaxEntryLen];
|
|
char **cpp;
|
|
int exists;
|
|
int cc;
|
|
int i;
|
|
|
|
exists = 0;
|
|
while ((i = getopt(argc, argv, "ev")) != -1) {
|
|
switch(i) {
|
|
case 'e':
|
|
exists = 1;
|
|
break;
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
default:
|
|
usermgmt_usage("userinfo");
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc != 1) {
|
|
usermgmt_usage("userinfo");
|
|
}
|
|
pwp = find_user_info(*argv);
|
|
if (exists) {
|
|
exit((pwp) ? EXIT_SUCCESS : EXIT_FAILURE);
|
|
}
|
|
if (pwp == NULL) {
|
|
errx(EXIT_FAILURE, "can't find user `%s'", *argv);
|
|
}
|
|
(void) printf("login\t%s\n", pwp->pw_name);
|
|
(void) printf("passwd\t%s\n", pwp->pw_passwd);
|
|
(void) printf("uid\t%d\n", pwp->pw_uid);
|
|
for (cc = 0 ; (grp = getgrent()) != NULL ; ) {
|
|
for (cpp = grp->gr_mem ; *cpp ; cpp++) {
|
|
if (strcmp(*cpp, *argv) == 0 && grp->gr_gid != pwp->pw_gid) {
|
|
cc += snprintf(&buf[cc], sizeof(buf) - cc, "%s ", grp->gr_name);
|
|
}
|
|
}
|
|
}
|
|
if ((grp = getgrgid(pwp->pw_gid)) == NULL) {
|
|
(void) printf("groups\t%d %s\n", pwp->pw_gid, buf);
|
|
} else {
|
|
(void) printf("groups\t%s %s\n", grp->gr_name, buf);
|
|
}
|
|
(void) printf("change\t%s", pwp->pw_change ? ctime(&pwp->pw_change) : "NEVER\n");
|
|
#ifdef EXTENSIONS
|
|
(void) printf("class\t%s\n", pwp->pw_class);
|
|
#endif
|
|
(void) printf("gecos\t%s\n", pwp->pw_gecos);
|
|
(void) printf("dir\t%s\n", pwp->pw_dir);
|
|
(void) printf("shell\t%s\n", pwp->pw_shell);
|
|
(void) printf("expire\t%s", pwp->pw_expire ? ctime(&pwp->pw_expire) : "NEVER\n");
|
|
return EXIT_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
#ifdef EXTENSIONS
|
|
/* display user information */
|
|
int
|
|
groupinfo(int argc, char **argv)
|
|
{
|
|
struct group *grp;
|
|
char **cpp;
|
|
int exists;
|
|
int i;
|
|
|
|
exists = 0;
|
|
while ((i = getopt(argc, argv, "ev")) != -1) {
|
|
switch(i) {
|
|
case 'e':
|
|
exists = 1;
|
|
break;
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
default:
|
|
usermgmt_usage("groupinfo");
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc != 1) {
|
|
usermgmt_usage("groupinfo");
|
|
}
|
|
grp = find_group_info(*argv);
|
|
if (exists) {
|
|
exit((grp) ? EXIT_SUCCESS : EXIT_FAILURE);
|
|
}
|
|
if (grp == NULL) {
|
|
errx(EXIT_FAILURE, "can't find group `%s'", *argv);
|
|
}
|
|
(void) printf("name\t%s\n", grp->gr_name);
|
|
(void) printf("passwd\t%s\n", grp->gr_passwd);
|
|
(void) printf("gid\t%d\n", grp->gr_gid);
|
|
(void) printf("members\t");
|
|
for (cpp = grp->gr_mem ; *cpp ; cpp++) {
|
|
(void) printf("%s ", *cpp);
|
|
}
|
|
(void) fputc('\n', stdout);
|
|
return EXIT_SUCCESS;
|
|
}
|
|
#endif
|