newlib-cygwin/winsup/utils/mkpasswd.c

733 lines
18 KiB
C

/* mkpasswd.c:
Copyright 1997, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <ctype.h>
#include <stdlib.h>
#include <wchar.h>
#include <stdio.h>
#include <windows.h>
#include <io.h>
#include <unistd.h>
#include <sys/cygwin.h>
#include <getopt.h>
#include <lmaccess.h>
#include <lmapibuf.h>
#include <sys/fcntl.h>
#include <lmerr.h>
#include <lmcons.h>
static const char version[] = "$Revision$";
SID_IDENTIFIER_AUTHORITY sid_world_auth = {SECURITY_WORLD_SID_AUTHORITY};
SID_IDENTIFIER_AUTHORITY sid_nt_auth = {SECURITY_NT_AUTHORITY};
NET_API_STATUS WINAPI (*netapibufferfree)(PVOID);
NET_API_STATUS WINAPI (*netuserenum)(LPWSTR,DWORD,DWORD,PBYTE*,DWORD,PDWORD,PDWORD,PDWORD);
NET_API_STATUS WINAPI (*netlocalgroupenum)(LPWSTR,DWORD,PBYTE*,DWORD,PDWORD,PDWORD,PDWORD);
NET_API_STATUS WINAPI (*netgetdcname)(LPWSTR,LPWSTR,PBYTE*);
NET_API_STATUS WINAPI (*netusergetinfo)(LPWSTR,LPWSTR,DWORD,PBYTE*);
#ifndef min
#define min(a,b) (((a)<(b))?(a):(b))
#endif
BOOL
load_netapi ()
{
HANDLE h = LoadLibrary ("netapi32.dll");
if (!h)
return FALSE;
if (!(netapibufferfree = (void *) GetProcAddress (h, "NetApiBufferFree")))
return FALSE;
if (!(netuserenum = (void *) GetProcAddress (h, "NetUserEnum")))
return FALSE;
if (!(netlocalgroupenum = (void *) GetProcAddress (h, "NetLocalGroupEnum")))
return FALSE;
if (!(netgetdcname = (void *) GetProcAddress (h, "NetGetDCName")))
return FALSE;
if (!(netusergetinfo = (void *) GetProcAddress (h, "NetUserGetInfo")))
return FALSE;
return TRUE;
}
char *
put_sid (PSID sid)
{
static char s[512];
char t[32];
DWORD i;
strcpy (s, "S-1-");
sprintf(t, "%u", GetSidIdentifierAuthority (sid)->Value[5]);
strcat (s, t);
for (i = 0; i < *GetSidSubAuthorityCount (sid); ++i)
{
sprintf(t, "-%lu", *GetSidSubAuthority (sid, i));
strcat (s, t);
}
return s;
}
void
psx_dir (char *in, char *out)
{
if (isalpha (in[0]) && in[1] == ':')
{
sprintf (out, "/cygdrive/%c", in[0]);
in += 2;
out += strlen (out);
}
while (*in)
{
if (*in == '\\')
*out = '/';
else
*out = *in;
in++;
out++;
}
*out = '\0';
}
void
uni2ansi (LPWSTR wcs, char *mbs, int size)
{
if (wcs)
WideCharToMultiByte (CP_ACP, 0, wcs, -1, mbs, size, NULL, NULL);
else
*mbs = '\0';
}
void
print_win_error(DWORD code)
{
char buf[4096];
if (FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
code,
MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) buf, sizeof (buf), NULL))
fprintf (stderr, "mkpasswd: [%lu] %s", code, buf);
else
fprintf (stderr, "mkpasswd: error %lu", code);
}
void
current_user (int print_sids, int print_cygpath,
const char * passed_home_path, int id_offset, const char * disp_username)
{
char name[UNLEN + 1], *envname, *envdomain;
DWORD len;
HANDLE ptok;
int errpos = 0;
struct {
PSID psid;
int buffer[10];
} tu, tg;
if ((!GetUserName (name, (len = sizeof (name), &len)) && (errpos = __LINE__))
|| !name[0]
|| !(envname = getenv("USERNAME"))
|| strcasecmp (envname, name)
|| (disp_username && strcasecmp(envname, disp_username))
|| (!GetComputerName (name, (len = sizeof (name), &len))
&& (errpos = __LINE__))
|| !(envdomain = getenv("USERDOMAIN"))
|| !envdomain[0]
|| !strcasecmp (envdomain, name)
|| (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &ptok)
&& (errpos = __LINE__))
|| (!GetTokenInformation (ptok, TokenUser, &tu, sizeof tu, &len)
&& (errpos = __LINE__))
|| (!GetTokenInformation (ptok, TokenPrimaryGroup, &tg, sizeof tg, &len)
&& (errpos = __LINE__))
|| (!CloseHandle (ptok) && (errpos = __LINE__)))
{
if (errpos)
{
print_win_error (GetLastError ());
fprintf(stderr, " on line %d\n", errpos);
}
return;
}
int uid = *GetSidSubAuthority (tu.psid, *GetSidSubAuthorityCount(tu.psid) - 1);
int gid = *GetSidSubAuthority (tg.psid, *GetSidSubAuthorityCount(tg.psid) - 1);
char homedir_psx[MAX_PATH] = {0}, homedir_w32[MAX_PATH] = {0};
char *envhomedrive = getenv ("HOMEDRIVE");
char *envhomepath = getenv ("HOMEPATH");
if (passed_home_path[0] == '\0')
{
if (envhomepath && envhomepath[0])
{
if (envhomedrive)
strlcpy (homedir_w32, envhomedrive, sizeof (homedir_w32));
if (envhomepath[0] != '\\')
strlcat (homedir_w32, "\\", sizeof (homedir_w32));
strlcat (homedir_w32, envhomepath, sizeof (homedir_w32));
if (print_cygpath)
cygwin_conv_to_posix_path (homedir_w32, homedir_psx);
else
psx_dir (homedir_w32, homedir_psx);
}
else
{
strlcpy (homedir_psx, "/home/", sizeof (homedir_psx));
strlcat (homedir_psx, envname, sizeof (homedir_psx));
}
}
else
{
strlcpy (homedir_psx, passed_home_path, sizeof (homedir_psx));
strlcat (homedir_psx, envname, sizeof (homedir_psx));
}
printf ("%s:unused_by_nt/2000/xp:%d:%d:%s%s%s%s%s%s%s%s:%s:/bin/bash\n",
envname,
uid + id_offset,
gid + id_offset,
envname,
print_sids ? "," : "",
print_sids ? "U-" : "",
print_sids ? envdomain : "",
print_sids ? "\\" : "",
print_sids ? envname : "",
print_sids ? "," : "",
print_sids ? put_sid (tu.psid) : "",
homedir_psx);
}
int
enum_users (LPWSTR servername, int print_sids, int print_cygpath,
const char * passed_home_path, int id_offset, char *disp_username)
{
USER_INFO_3 *buffer;
DWORD entriesread = 0;
DWORD totalentries = 0;
DWORD resume_handle = 0;
DWORD rc;
char ansi_srvname[256];
WCHAR uni_name[512];
if (servername)
uni2ansi (servername, ansi_srvname, sizeof (ansi_srvname));
do
{
DWORD i;
if (disp_username != NULL)
{
MultiByteToWideChar (CP_ACP, 0, disp_username, -1, uni_name, 512 );
rc = netusergetinfo(servername, (LPWSTR) & uni_name, 3,
(LPBYTE *) &buffer );
entriesread=1;
}
else
rc = netuserenum (servername, 3, FILTER_NORMAL_ACCOUNT,
(LPBYTE *) & buffer, 1024,
&entriesread, &totalentries, &resume_handle);
switch (rc)
{
case ERROR_ACCESS_DENIED:
print_win_error(rc);
exit (1);
case ERROR_MORE_DATA:
case ERROR_SUCCESS:
break;
default:
print_win_error(rc);
exit (1);
}
for (i = 0; i < entriesread; i++)
{
char username[100];
char fullname[100];
char homedir_psx[MAX_PATH];
char homedir_w32[MAX_PATH];
char domain_name[100];
DWORD domname_len = 100;
char psid_buffer[1024];
PSID psid = (PSID) psid_buffer;
DWORD sid_length = 1024;
SID_NAME_USE acc_type;
int uid = buffer[i].usri3_user_id;
int gid = buffer[i].usri3_primary_group_id;
uni2ansi (buffer[i].usri3_name, username, sizeof (username));
uni2ansi (buffer[i].usri3_full_name, fullname, sizeof (fullname));
homedir_w32[0] = homedir_psx[0] = '\0';
if (passed_home_path[0] == '\0')
{
uni2ansi (buffer[i].usri3_home_dir, homedir_w32,
sizeof (homedir_w32));
if (homedir_w32[0] != '\0')
{
if (print_cygpath)
cygwin_conv_to_posix_path (homedir_w32, homedir_psx);
else
psx_dir (homedir_w32, homedir_psx);
}
else
{
strcpy (homedir_psx, "/home/");
strcat (homedir_psx, username);
}
}
else
{
strcpy (homedir_psx, passed_home_path);
strcat (homedir_psx, username);
}
if (print_sids)
{
if (!LookupAccountName (servername ? ansi_srvname : NULL,
username,
psid, &sid_length,
domain_name, &domname_len,
&acc_type))
{
print_win_error(GetLastError ());
continue;
}
else if (acc_type == SidTypeDomain)
{
char domname[356];
strcpy (domname, domain_name);
strcat (domname, "\\");
strcat (domname, username);
sid_length = 1024;
domname_len = 100;
if (!LookupAccountName (servername ? ansi_srvname : NULL,
domname,
psid, &sid_length,
domain_name, &domname_len,
&acc_type))
{
print_win_error(GetLastError ());
continue;
}
}
}
printf ("%s:unused_by_nt/2000/xp:%d:%d:%s%s%s%s%s%s%s%s:%s:/bin/bash\n",
username,
uid + id_offset,
gid + id_offset,
fullname,
print_sids && fullname[0] ? "," : "",
print_sids ? "U-" : "",
print_sids ? domain_name : "",
print_sids && domain_name[0] ? "\\" : "",
print_sids ? username : "",
print_sids ? "," : "",
print_sids ? put_sid (psid) : "",
homedir_psx);
}
netapibufferfree (buffer);
}
while (rc == ERROR_MORE_DATA);
if (servername)
netapibufferfree (servername);
return 0;
}
int
enum_local_groups (int print_sids)
{
LOCALGROUP_INFO_0 *buffer;
DWORD entriesread = 0;
DWORD totalentries = 0;
DWORD resume_handle = 0;
DWORD rc ;
do
{
DWORD i;
rc = netlocalgroupenum (NULL, 0, (LPBYTE *) & buffer, 1024,
&entriesread, &totalentries, &resume_handle);
switch (rc)
{
case ERROR_ACCESS_DENIED:
print_win_error(rc);
exit (1);
case ERROR_MORE_DATA:
case ERROR_SUCCESS:
break;
default:
print_win_error(rc);
exit (1);
}
for (i = 0; i < entriesread; i++)
{
char localgroup_name[100];
char domain_name[100];
DWORD domname_len = 100;
char psid_buffer[1024];
PSID psid = (PSID) psid_buffer;
DWORD sid_length = 1024;
DWORD gid;
SID_NAME_USE acc_type;
uni2ansi (buffer[i].lgrpi0_name, localgroup_name, sizeof (localgroup_name));
if (!LookupAccountName (NULL, localgroup_name, psid,
&sid_length, domain_name, &domname_len,
&acc_type))
{
print_win_error(GetLastError ());
continue;
}
else if (acc_type == SidTypeDomain)
{
char domname[356];
strcpy (domname, domain_name);
strcat (domname, "\\");
strcat (domname, localgroup_name);
sid_length = 1024;
domname_len = 100;
if (!LookupAccountName (NULL, domname,
psid, &sid_length,
domain_name, &domname_len,
&acc_type))
{
print_win_error(GetLastError ());
continue;
}
}
gid = *GetSidSubAuthority (psid, *GetSidSubAuthorityCount(psid) - 1);
printf ("%s:*:%ld:%ld:%s%s::\n", localgroup_name, gid, gid,
print_sids ? "," : "",
print_sids ? put_sid (psid) : "");
}
netapibufferfree (buffer);
}
while (rc == ERROR_MORE_DATA);
return 0;
}
void
print_special (int print_sids,
PSID_IDENTIFIER_AUTHORITY auth, BYTE cnt,
DWORD sub1, DWORD sub2, DWORD sub3, DWORD sub4,
DWORD sub5, DWORD sub6, DWORD sub7, DWORD sub8)
{
char name[256], dom[256];
DWORD len, len2, rid;
PSID sid;
SID_NAME_USE use;
if (AllocateAndInitializeSid (auth, cnt, sub1, sub2, sub3, sub4,
sub5, sub6, sub7, sub8, &sid))
{
if (LookupAccountSid (NULL, sid,
name, (len = 256, &len),
dom, (len2 = 256, &len),
&use))
{
if (sub8)
rid = sub8;
else if (sub7)
rid = sub7;
else if (sub6)
rid = sub6;
else if (sub5)
rid = sub5;
else if (sub4)
rid = sub4;
else if (sub3)
rid = sub3;
else if (sub2)
rid = sub2;
else
rid = sub1;
printf ("%s:*:%lu:%lu:%s%s::\n",
name, rid, rid == 18 ? 544 : rid, /* SYSTEM hack */
print_sids ? "," : "",
print_sids ? put_sid (sid) : "");
}
FreeSid (sid);
}
}
int
usage (FILE * stream, int isNT)
{
fprintf (stream, "Usage: mkpasswd [OPTION]... [domain]\n\n"
"This program prints a /etc/passwd file to stdout\n\n"
"Options:\n");
if (isNT)
fprintf (stream, " -l,--local print local user accounts\n"
" -c,--current print current account, if a domain account\n"
" -d,--domain print domain accounts (from current domain\n"
" if no domain specified)\n"
" -o,--id-offset offset change the default offset (10000) added to uids\n"
" in domain accounts.\n"
" -g,--local-groups print local group information too\n"
" if no domain specified\n"
" -m,--no-mount don't use mount points for home dir\n"
" -s,--no-sids don't print SIDs in GCOS field\n"
" (this affects ntsec)\n");
fprintf (stream, " -p,--path-to-home path use specified path instead of user account home dir\n"
" -u,--username username only return information for the specified user\n"
" -h,--help displays this message\n"
" -v,--version version information and exit\n\n");
if (isNT)
fprintf (stream, "One of `-l', `-d' or `-g' must be given.\n");
return 1;
}
struct option longopts[] = {
{"local", no_argument, NULL, 'l'},
{"current", no_argument, NULL, 'c'},
{"domain", no_argument, NULL, 'd'},
{"id-offset", required_argument, NULL, 'o'},
{"local-groups", no_argument, NULL, 'g'},
{"no-mount", no_argument, NULL, 'm'},
{"no-sids", no_argument, NULL, 's'},
{"path-to-home", required_argument, NULL, 'p'},
{"username", required_argument, NULL, 'u'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'v'},
{0, no_argument, NULL, 0}
};
char opts[] = "lcdo:gsmhp:u:v";
static void
print_version ()
{
const char *v = strchr (version, ':');
int len;
if (!v)
{
v = "?";
len = 1;
}
else
{
v += 2;
len = strchr (v, ' ') - v;
}
printf ("\
mkpasswd (cygwin) %.*s\n\
passwd File Generator\n\
Copyright 1997, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.\n\
Compiled on %s\n\
", len, v, __DATE__);
}
int
main (int argc, char **argv)
{
LPWSTR servername = NULL;
DWORD rc = ERROR_SUCCESS;
WCHAR domain_name[200];
int print_local = 0;
int print_current = 0;
int print_domain = 0;
int print_local_groups = 0;
int domain_name_specified = 0;
int print_sids = 1;
int print_cygpath = 1;
int id_offset = 10000;
int i;
int isNT;
char *disp_username = NULL;
char name[256], passed_home_path[MAX_PATH];
DWORD len;
isNT = (GetVersion () < 0x80000000);
passed_home_path[0] = '\0';
if (!isatty (1))
setmode (1, O_BINARY);
if (isNT && argc == 1)
return usage (stderr, isNT);
else
{
while ((i = getopt_long (argc, argv, opts, longopts, NULL)) != EOF)
switch (i)
{
case 'l':
print_local = 1;
break;
case 'c':
print_current = 1;
break;
case 'd':
print_domain = 1;
break;
case 'o':
id_offset = strtol (optarg, NULL, 10);
break;
case 'g':
print_local_groups = 1;
break;
case 's':
print_sids = 0;
break;
case 'm':
print_cygpath = 0;
break;
case 'p':
if (optarg[0] != '/')
{
fprintf (stderr, "%s: `%s' is not a fully qualified path.\n",
argv[0], optarg);
return 1;
}
strcpy (passed_home_path, optarg);
if (optarg[strlen (optarg)-1] != '/')
strcat (passed_home_path, "/");
break;
case 'u':
disp_username = optarg;
break;
case 'h':
usage (stdout, isNT);
return 0;
case 'v':
print_version ();
return 0;
default:
fprintf (stderr, "Try `%s --help' for more information.\n", argv[0]);
return 1;
}
}
if (!isNT)
{
/* This takes Windows 9x/ME into account. */
if (!disp_username)
{
if (GetUserName (name, (len = 256, &len)))
disp_username = name;
else
/* Same behaviour as in cygwin/shared.cc (memory_init). */
disp_username = (char *) "unknown";
}
if (passed_home_path[0] == '\0')
strcpy (passed_home_path, "/home/");
printf ("%s:*:%ld:%ld:%s:%s%s:/bin/bash\n", disp_username,
DOMAIN_USER_RID_ADMIN,
DOMAIN_ALIAS_RID_ADMINS,
disp_username,
passed_home_path,
disp_username);
return 0;
}
if (!print_local && !print_domain && !print_local_groups)
{
fprintf (stderr, "%s: Specify one of `-l', `-d' or `-g'\n", argv[0]);
return 1;
}
if (optind < argc)
{
if (!print_domain)
{
fprintf (stderr, "%s: A domain name is only accepted "
"when `-d' is given.\n", argv[0]);
return 1;
}
mbstowcs (domain_name, argv[optind], (strlen (argv[optind]) + 1));
domain_name_specified = 1;
}
if (!load_netapi ())
{
print_win_error(GetLastError ());
return 1;
}
if (disp_username == NULL)
{
#if 0
/*
* Get `Everyone' group
*/
print_special (print_sids, &sid_world_auth, 1, SECURITY_WORLD_RID,
0, 0, 0, 0, 0, 0, 0);
#endif
/*
* Get `system' group
*/
print_special (print_sids, &sid_nt_auth, 1, SECURITY_LOCAL_SYSTEM_RID,
0, 0, 0, 0, 0, 0, 0);
/*
* Get `administrators' group
*/
if (!print_local_groups)
print_special (print_sids, &sid_nt_auth, 2, SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0);
if (print_local_groups)
enum_local_groups (print_sids);
}
if (print_domain)
{
if (domain_name_specified)
rc = netgetdcname (NULL, domain_name, (LPBYTE *) & servername);
else
rc = netgetdcname (NULL, NULL, (LPBYTE *) & servername);
if (rc != ERROR_SUCCESS)
{
print_win_error(rc);
return 1;
}
enum_users (servername, print_sids, print_cygpath, passed_home_path,
id_offset, disp_username);
}
if (print_local)
enum_users (NULL, print_sids, print_cygpath, passed_home_path, 0,
disp_username);
if (print_current && !print_domain)
current_user(print_sids, print_cygpath, passed_home_path,
id_offset, disp_username);
if (servername)
netapibufferfree (servername);
return 0;
}