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newlib/winsup/utils/mkgroup.c

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/* mkgroup.c:
Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003 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 <sys/cygwin.h>
#include <getopt.h>
#include <lmaccess.h>
#include <lmapibuf.h>
#include <ntsecapi.h>
#include <ntdef.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 (*netapibufferallocate)(DWORD,PVOID*);
NET_API_STATUS WINAPI (*netapibufferfree)(PVOID);
NET_API_STATUS WINAPI (*netgroupenum)(LPWSTR,DWORD,PBYTE*,DWORD,PDWORD,PDWORD,PDWORD);
NET_API_STATUS WINAPI (*netgroupgetinfo)(LPWSTR,LPWSTR,DWORD,PBYTE*);
NET_API_STATUS WINAPI (*netlocalgroupenum)(LPWSTR,DWORD,PBYTE*,DWORD,PDWORD,PDWORD,PDWORD);
NET_API_STATUS WINAPI (*netlocalgroupgetmembers)(LPWSTR,LPWSTR,DWORD,PBYTE*,DWORD,PDWORD,PDWORD,PDWORD);
NET_API_STATUS WINAPI (*netgetdcname)(LPWSTR,LPWSTR,PBYTE*);
NET_API_STATUS WINAPI (*netgroupgetusers)(LPWSTR,LPWSTR,DWORD,PBYTE*,DWORD,PDWORD,PDWORD,PDWORD);
NTSTATUS NTAPI (*lsaclose)(LSA_HANDLE);
NTSTATUS NTAPI (*lsaopenpolicy)(PLSA_UNICODE_STRING,PLSA_OBJECT_ATTRIBUTES,ACCESS_MASK,PLSA_HANDLE);
NTSTATUS NTAPI (*lsaqueryinformationpolicy)(LSA_HANDLE,POLICY_INFORMATION_CLASS,PVOID*);
NTSTATUS NTAPI (*lsafreememory)(PVOID);
#ifndef min
#define min(a,b) (((a)<(b))?(a):(b))
#endif
BOOL
load_netapi ()
{
HANDLE h = LoadLibrary ("netapi32.dll");
if (!h)
return FALSE;
if (!(netapibufferallocate = (void *) GetProcAddress (h, "NetApiBufferAllocate")))
return FALSE;
if (!(netapibufferfree = (void *) GetProcAddress (h, "NetApiBufferFree")))
return FALSE;
if (!(netgroupenum = (void *) GetProcAddress (h, "NetGroupEnum")))
return FALSE;
if (!(netgroupgetinfo = (void *) GetProcAddress (h, "NetGroupGetInfo")))
return FALSE;
if (!(netgroupgetusers = (void *) GetProcAddress (h, "NetGroupGetUsers")))
return FALSE;
if (!(netlocalgroupenum = (void *) GetProcAddress (h, "NetLocalGroupEnum")))
return FALSE;
if (!(netlocalgroupgetmembers = (void *) GetProcAddress (h, "NetLocalGroupGetMembers")))
return FALSE;
if (!(netgetdcname = (void *) GetProcAddress (h, "NetGetDCName")))
return FALSE;
if (!(h = LoadLibrary ("advapi32.dll")))
return FALSE;
if (!(lsaclose = (void *) GetProcAddress (h, "LsaClose")))
return FALSE;
if (!(lsaopenpolicy = (void *) GetProcAddress (h, "LsaOpenPolicy")))
return FALSE;
if (!(lsaqueryinformationpolicy = (void *) GetProcAddress (h, "LsaQueryInformationPolicy")))
return FALSE;
if (!(lsafreememory = (void *) GetProcAddress (h, "LsaFreeMemory")))
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
enum_local_users (LPWSTR groupname)
{
LOCALGROUP_MEMBERS_INFO_1 *buf1;
DWORD entries = 0;
DWORD total = 0;
DWORD reshdl = 0;
if (!netlocalgroupgetmembers (NULL, groupname,
1, (void *) &buf1,
MAX_PREFERRED_LENGTH,
&entries, &total, &reshdl))
{
unsigned i, first = 1;
for (i = 0; i < entries; ++i)
if (buf1[i].lgrmi1_sidusage == SidTypeUser)
{
char user[256];
if (!first)
printf (",");
first = 0;
uni2ansi (buf1[i].lgrmi1_name, user, sizeof (user));
printf ("%s", user);
}
netapibufferfree (buf1);
}
}
int
enum_local_groups (int print_sids, int print_users, char *disp_groupname)
{
LOCALGROUP_INFO_0 *buffer;
DWORD entriesread = 0;
DWORD totalentries = 0;
DWORD resume_handle = 0;
WCHAR uni_name[512];
DWORD rc;
do
{
DWORD i;
if (disp_groupname != NULL)
{
MultiByteToWideChar (CP_ACP, 0, disp_groupname, -1, uni_name, 512 );
rc = netapibufferallocate(sizeof(LOCALGROUP_INFO_0), (void *) &buffer );
buffer[0].lgrpi0_name = (LPWSTR) & uni_name;
entriesread=1;
}
else
rc = netlocalgroupenum (NULL, 0, (void *) &buffer, 1024,
&entriesread, &totalentries, &resume_handle);
switch (rc)
{
case ERROR_ACCESS_DENIED:
fprintf (stderr, "Access denied\n");
exit (1);
case ERROR_MORE_DATA:
case ERROR_SUCCESS:
break;
default:
fprintf (stderr, "NetLocalGroupEnum() failed with %ld\n", 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))
{
fprintf (stderr, "LookupAccountName(%s) failed with %ld\n",
localgroup_name, 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))
{
fprintf (stderr,
"LookupAccountName(%s) failed with error %ld\n",
localgroup_name, GetLastError ());
continue;
}
}
gid = *GetSidSubAuthority (psid, *GetSidSubAuthorityCount(psid) - 1);
printf ("%s:%s:%ld:", localgroup_name,
print_sids ? put_sid (psid) : "",
gid);
if (print_users)
enum_local_users (buffer[i].lgrpi0_name);
printf ("\n");
}
netapibufferfree (buffer);
}
while (rc == ERROR_MORE_DATA);
return 0;
}
void
enum_users (LPWSTR servername, LPWSTR groupname)
{
GROUP_USERS_INFO_0 *buf1;
DWORD entries = 0;
DWORD total = 0;
DWORD reshdl = 0;
if (!netgroupgetusers (servername, groupname,
0, (void *) &buf1,
MAX_PREFERRED_LENGTH,
&entries, &total, &reshdl))
{
unsigned i, first = 1;
for (i = 0; i < entries; ++i)
{
char user[256];
if (!first)
printf (",");
first = 0;
uni2ansi (buf1[i].grui0_name, user, sizeof (user));
printf ("%s", user);
}
netapibufferfree (buf1);
}
}
void
enum_groups (LPWSTR servername, int print_sids, int print_users, int id_offset,
char *disp_groupname)
{
GROUP_INFO_2 *buffer;
DWORD entriesread = 0;
DWORD totalentries = 0;
DWORD resume_handle = 0;
WCHAR uni_name[512];
DWORD rc;
char ansi_srvname[256];
if (servername)
uni2ansi (servername, ansi_srvname, sizeof (ansi_srvname));
do
{
DWORD i;
if (disp_groupname != NULL)
{
MultiByteToWideChar (CP_ACP, 0, disp_groupname, -1, uni_name, 512 );
rc = netgroupgetinfo(servername, (LPWSTR) & uni_name, 2,
(void *) &buffer );
entriesread=1;
}
else
rc = netgroupenum (servername, 2, (void *) & buffer, 1024,
&entriesread, &totalentries, &resume_handle);
switch (rc)
{
case ERROR_ACCESS_DENIED:
fprintf (stderr, "Access denied\n");
exit (1);
case ERROR_MORE_DATA:
case ERROR_SUCCESS:
break;
default:
fprintf (stderr, "NetGroupEnum() failed with %ld\n", rc);
exit (1);
}
for (i = 0; i < entriesread; i++)
{
char groupname[100];
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 gid = buffer[i].grpi2_group_id;
uni2ansi (buffer[i].grpi2_name, groupname, sizeof (groupname));
if (print_sids)
{
if (!LookupAccountName (servername ? ansi_srvname : NULL,
groupname,
psid, &sid_length,
domain_name, &domname_len,
&acc_type))
{
fprintf (stderr,
"LookupAccountName (%s, %s) failed with error %ld\n",
servername ? ansi_srvname : "NULL",
groupname,
GetLastError ());
continue;
}
else if (acc_type == SidTypeDomain)
{
char domname[356];
strcpy (domname, domain_name);
strcat (domname, "\\");
strcat (domname, groupname);
sid_length = 1024;
domname_len = 100;
if (!LookupAccountName (servername ? ansi_srvname : NULL,
domname,
psid, &sid_length,
domain_name, &domname_len,
&acc_type))
{
fprintf (stderr,
"LookupAccountName(%s,%s) failed with error %ld\n",
servername ? ansi_srvname : "NULL",
domname,
GetLastError ());
continue;
}
}
}
printf ("%s:%s:%u:", groupname,
print_sids ? put_sid (psid) : "",
gid + id_offset);
if (print_users)
enum_users (servername, buffer[i].grpi2_name);
printf ("\n");
}
netapibufferfree (buffer);
}
while (rc == ERROR_MORE_DATA);
}
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:%s:%lu:\n", name,
print_sids ? put_sid (sid) : "",
rid);
}
FreeSid (sid);
}
}
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, "mkgroup: [%lu] %s", code, buf);
else
fprintf (stderr, "mkgroup: error %lu", code);
}
void
current_group (int print_sids, int print_users, int id_offset)
{
char name[UNLEN + 1], *envname, *envdomain;
DWORD len;
HANDLE ptok;
int errpos = 0;
struct {
PSID psid;
int buffer[10];
} tg;
if ((!GetUserName (name, (len = sizeof (name), &len)) && (errpos = __LINE__))
|| !name[0]
|| !(envname = getenv("USERNAME"))
|| strcasecmp (envname, name)
|| (!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, 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 gid = *GetSidSubAuthority (tg.psid, *GetSidSubAuthorityCount(tg.psid) - 1);
printf ("mkgroup_l_d:%s:%u:", print_sids ? put_sid (tg.psid) : "",
gid + id_offset);
if (print_users)
printf("%s", envname);
printf ("\n");
}
int
usage (FILE * stream, int isNT)
{
fprintf (stream, "Usage: mkgroup [OPTION]... [domain]...\n"
"Print /etc/group file to stdout\n\n"
"Options:\n");
if (isNT)
fprintf (stream, " -l,--local print local group information\n"
" -c,--current print current group, if a domain account\n"
" -d,--domain print global group information (from current\n"
" domain if no domains specified)\n"
" -o,--id-offset offset change the default offset (10000) added to gids\n"
" in domain accounts.\n"
" -s,--no-sids don't print SIDs in pwd field\n"
" (this affects ntsec)\n"
" -u,--users print user list in gr_mem field\n"
" -g,--group groupname only return information for the specified group\n");
fprintf (stream, " -h,--help print this message\n"
" -v,--version print version information and exit\n\n");
if (isNT)
fprintf (stream, "One of `-l' or `-d' 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'},
{"no-sids", no_argument, NULL, 's'},
{"users", no_argument, NULL, 'u'},
{"group", required_argument, NULL, 'g'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'v'},
{0, no_argument, NULL, 0}
};
char opts[] = "lcdo:sug:hv";
void
print_version ()
{
const char *v = strchr (version, ':');
int len;
if (!v)
{
v = "?";
len = 1;
}
else
{
v += 2;
len = strchr (v, ' ') - v;
}
printf ("\
mkgroup (cygwin) %.*s\n\
group 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;
DWORD rc = ERROR_SUCCESS;
WCHAR domain_name[100];
int print_local = 0;
int print_current = 0;
int print_domain = 0;
int print_sids = 1;
int print_users = 0;
int domain_specified = 0;
int id_offset = 10000;
char *disp_groupname = NULL;
int isRoot = 0;
int isNT;
int i;
char name[256], dom[256];
DWORD len, len2;
char buf[1024];
PSID psid = NULL;
SID_NAME_USE use;
LSA_OBJECT_ATTRIBUTES oa = { 0, 0, 0, 0, 0, 0 };
LSA_HANDLE lsa = INVALID_HANDLE_VALUE;
NTSTATUS ret;
PPOLICY_PRIMARY_DOMAIN_INFO pdi;
isNT = (GetVersion () < 0x80000000);
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 's':
print_sids = 0;
break;
case 'u':
print_users = 1;
break;
case 'g':
disp_groupname = optarg;
isRoot = !strcmp(disp_groupname, "root");
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;
}
}
/* This takes Windows 9x/ME into account. */
if (!isNT)
{
printf ("all::%ld:\n", DOMAIN_ALIAS_RID_ADMINS);
return 0;
}
if (!print_local && !print_domain)
{
fprintf (stderr, "%s: Specify one of `-l' or `-d'\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;
}
domain_specified = 1;
}
if (!load_netapi ())
{
fprintf (stderr, "Failed loading symbols from netapi32.dll "
"with error %lu\n", GetLastError ());
return 1;
}
if (print_local)
{
if (isRoot)
{
/*
* Very special feature for the oncoming future:
* Create a "root" group account, being actually the local
* Administrators group. Since user name, sid and gid are
* fixed, there's no need to call print_special() for this.
*/
printf ("root:S-1-5-32-544:0:\n");
}
if (disp_groupname == NULL)
{
/*
* Get `system' group
*/
print_special (print_sids, &sid_nt_auth, 1, SECURITY_LOCAL_SYSTEM_RID,
0, 0, 0, 0, 0, 0, 0);
/*
* Get `None' group
*/
len = 256;
GetComputerName (name, &len);
len = 1024;
len2 = 256;
if (LookupAccountName (NULL, name, (PSID) buf, &len, dom, &len, &use))
psid = (PSID) buf;
else
{
ret = lsaopenpolicy (NULL, &oa, POLICY_VIEW_LOCAL_INFORMATION, &lsa);
if (ret == STATUS_SUCCESS && lsa != INVALID_HANDLE_VALUE)
{
ret = lsaqueryinformationpolicy (lsa,
PolicyPrimaryDomainInformation,
(void *) &pdi);
if (ret == STATUS_SUCCESS)
{
if (pdi->Sid)
{
CopySid (1024, (PSID) buf, pdi->Sid);
psid = (PSID) buf;
}
lsafreememory (pdi);
}
lsaclose (lsa);
}
}
if (!psid)
fprintf (stderr,
"WARNING: Group 513 couldn't get retrieved. Try mkgroup -d\n");
else
print_special (print_sids, GetSidIdentifierAuthority (psid), 5,
*GetSidSubAuthority (psid, 0),
*GetSidSubAuthority (psid, 1),
*GetSidSubAuthority (psid, 2),
*GetSidSubAuthority (psid, 3),
513,
0,
0,
0);
}
if (!isRoot)
{
enum_local_groups (print_sids, print_users, disp_groupname);
}
}
i = 1;
if (print_domain)
do
{
if (domain_specified)
{
mbstowcs (domain_name, argv[optind], (strlen (argv[optind]) + 1));
rc = netgetdcname (NULL, domain_name, (void *) &servername);
}
else
rc = netgetdcname (NULL, NULL, (void *) &servername);
if (rc != ERROR_SUCCESS)
{
fprintf (stderr, "Cannot get PDC, code = %ld\n", rc);
return 1;
}
enum_groups (servername, print_sids, print_users, id_offset * i++, disp_groupname);
netapibufferfree (servername);
}
while (++optind < argc);
if (print_current && !print_domain)
current_group (print_sids, print_users, id_offset);
return 0;
}
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