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getuid.c
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getuid.c
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#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
#include <postgres.h>
#include <fmgr.h>
#include <samba-4.0/wbclient.h>
#include <uuid/uuid.h>
#ifdef PG_MODULE_MAGIC
PG_MODULE_MAGIC
;
#endif
PG_FUNCTION_INFO_V1 (get_screenname);
Datum get_screenname ( PG_FUNCTION_ARGS )
{
int32 arg = PG_GETARG_INT32 ( 0 );
uid_t uid = arg;
text* new_text;
wbcErr res;
int32 text_size;
struct wbcDomainSid sid;
enum wbcSidType name_type;
char* domain;
char* screenname;
res = wbcUidToSid ( uid, &sid );
if ( res == 0 ) res = wbcLookupSid ( &sid, ( char ** ) &domain, ( char ** ) &screenname, &name_type );
if ( res == 0 )
{
syslog ( LOG_ERR, "После получения sceenname=%s uid=%d", screenname, uid );
text_size = strlen ( screenname );
new_text = ( text * ) palloc ( text_size + VARHDRSZ );
SET_VARSIZE ( new_text, text_size + VARHDRSZ );
memcpy ( VARDATA ( new_text ), screenname, text_size );
wbcFreeMemory ( domain );
wbcFreeMemory ( screenname );
}
PG_RETURN_TEXT_P ( new_text );
}
PG_FUNCTION_INFO_V1 (get_uid);
Datum get_uid ( PG_FUNCTION_ARGS )
{
char* screenname;
VarChar* name = PG_GETARG_VARCHAR_P ( 0 );
screenname = ( char* ) palloc ( VARSIZE ( name ) + 1 + VARHDRSZ );
bzero ( screenname, VARSIZE ( name ) + 1 + VARHDRSZ );
memcpy ( screenname, VARDATA ( name ), VARSIZE ( name ) - VARHDRSZ );
//syslog( LOG_ERR, "До запроса %s",screenname);
int32 uid = 0;
wbcErr res;
struct wbcDomainSid sid;
uid_t puid;
enum wbcSidType name_type;
char* domain_name = "GEOREC";
res = wbcLookupName ( domain_name, screenname, &sid, &name_type );
if ( res == 0 ) res = wbcSidToUid ( &sid, &puid );
if ( res == 0 )
{
uid = puid;
syslog ( LOG_ERR, "После получения uid=%d name=%s", uid, screenname );
}
PG_RETURN_INT32 ( uid );
}
PG_FUNCTION_INFO_V1 (get_gid);
Datum get_gid ( PG_FUNCTION_ARGS )
{
char* screenname;
VarChar* name = PG_GETARG_VARCHAR_P ( 0 );
screenname = ( char* ) palloc ( VARSIZE ( name ) + 1 + VARHDRSZ );
bzero ( screenname, VARSIZE ( name ) + 1 + VARHDRSZ );
memcpy ( screenname, VARDATA ( name ), VARSIZE ( name ) - VARHDRSZ );
//syslog( LOG_ERR, "До запроса %s",screenname);
int32 gid = 0;
gid_t* _groups;
uint32_t num_groups;
wbcErr res;
res = wbcGetGroups ( screenname, &num_groups, ( gid_t ** ) &_groups );
if ( res == 0 )
{
gid = _groups[0];
syslog ( LOG_ERR, "После получения gid=%d name=%s", gid, screenname );
wbcFreeMemory ( _groups );
}
PG_RETURN_INT32 ( gid );
}
PG_FUNCTION_INFO_V1 (get_sid);
Datum get_sid ( PG_FUNCTION_ARGS )
{
char* screenname;
VarChar* name = PG_GETARG_VARCHAR_P ( 0 );
screenname = ( char* ) palloc ( VARSIZE ( name ) + 1 + VARHDRSZ );
bzero ( screenname, VARSIZE ( name ) + 1 + VARHDRSZ );
memcpy ( screenname, VARDATA ( name ), VARSIZE ( name ) - VARHDRSZ );
//syslog( LOG_ERR, "До запроса %s",screenname);
wbcErr res;
char buf[512] = { '0' };
char* str = "NO_SID";
struct wbcDomainSid sid;
int32 text_size;
enum wbcSidType name_type;
char* domain_name = "GEOREC";
text* new_text;
res = wbcLookupName ( domain_name, screenname, &sid, &name_type );
if ( res == 0 )
{
text_size = wbcSidToStringBuf ( &sid, buf, 512 );
new_text = ( text * ) palloc ( text_size + VARHDRSZ );
SET_VARSIZE ( new_text, text_size + VARHDRSZ );
memcpy ( VARDATA ( new_text ), buf, text_size );
syslog ( LOG_ERR, "После получения sid=%s name=%s, len=%d", buf, screenname, text_size );
}
else
{
text_size = strlen ( str );
new_text = ( text * ) palloc ( text_size + VARHDRSZ );
SET_VARSIZE ( new_text, text_size + VARHDRSZ );
memcpy ( VARDATA ( new_text ), str, text_size );
syslog ( LOG_ERR, "После получения sid=%s name=%s len=%d", str, screenname, text_size );
}
syslog ( LOG_ERR, "В итоге new_text=%s ", VARDATA ( new_text ) );
PG_RETURN_TEXT_P ( new_text );
}
PG_FUNCTION_INFO_V1 (get_uid_from_sid);
Datum get_uid_from_sid ( PG_FUNCTION_ARGS )
{
char* sid_str;
VarChar* name = PG_GETARG_VARCHAR_P ( 0 );
sid_str = ( char* ) palloc ( VARSIZE ( name ) + 1 + VARHDRSZ );
bzero ( sid_str, VARSIZE ( name ) + 1 + VARHDRSZ );
memcpy ( sid_str, VARDATA ( name ), VARSIZE ( name ) - VARHDRSZ );
wbcErr res;
int32 uid = 0;
uid_t puid;
struct wbcDomainSid sid;
res = wbcStringToSid( sid_str, &sid );
if ( res == 0 ) res = wbcSidToUid ( &sid, &puid );
if ( res == 0 )
{
uid = puid;
syslog ( LOG_ERR, "Получения uid=%d из sid=%s", uid, sid_str );
}
else syslog ( LOG_ERR, "ERROR Получения uid=%d из sid=%s", uid, sid_str );
PG_RETURN_INT32 ( uid );
}
PG_FUNCTION_INFO_V1 (get_gid_from_sid);
Datum get_gid_from_sid ( PG_FUNCTION_ARGS )
{
char* sid_str;
VarChar* name = PG_GETARG_VARCHAR_P ( 0 );
sid_str = ( char* ) palloc ( VARSIZE ( name ) + 1 + VARHDRSZ );
bzero ( sid_str, VARSIZE ( name ) + 1 + VARHDRSZ );
memcpy ( sid_str, VARDATA ( name ), VARSIZE ( name ) - VARHDRSZ );
wbcErr res;
int32 gid = 0;
uid_t puid;
struct wbcDomainSid sid;
res = wbcStringToSid( sid_str, &sid );
if ( res == 0 ) res = wbcSidToGid ( &sid, &puid );
if ( res == 0 )
{
gid = puid;
syslog ( LOG_ERR, "Получения gid=%d из sid=%s", gid, sid_str );
}
else syslog ( LOG_ERR, "ERROR Получения gid=%d из sid=%s", gid, sid_str );
PG_RETURN_INT32 ( gid );
}