/*
- Unix SMB/Netbios implementation.
- Version 3.0
+ Unix SMB/CIFS implementation.
tdb utility functions
- Copyright (C) Andrew Tridgell 1992-1998
+ Copyright (C) Andrew Tridgell 1992-1998
+ Copyright (C) Rafal Szczesniak 2002
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
#include "includes.h"
+#include <fnmatch.h>
/* these are little tdb utility functions that are meant to make
dealing with a tdb database a little less cumbersome in Samba */
-/* lock a chain by string */
-int tdb_lock_bystring(TDB_CONTEXT *tdb, char *keyval)
+static SIG_ATOMIC_T gotalarm;
+
+/***************************************************************
+ Signal function to tell us we timed out.
+****************************************************************/
+
+static void gotalarm_sig(void)
{
- TDB_DATA key;
+ gotalarm = 1;
+}
- key.dptr = keyval;
- key.dsize = strlen(keyval)+1;
-
- return tdb_chainlock(tdb, key);
+/***************************************************************
+ Make a TDB_DATA and keep the const warning in one place
+****************************************************************/
+
+TDB_DATA make_tdb_data(const char *dptr, size_t dsize)
+{
+ TDB_DATA ret;
+ ret.dptr = CONST_DISCARD(char *, dptr);
+ ret.dsize = dsize;
+ return ret;
}
-/* unlock a chain by string */
-void tdb_unlock_bystring(TDB_CONTEXT *tdb, char *keyval)
+TDB_DATA string_tdb_data(const char *string)
{
- TDB_DATA key;
+ return make_tdb_data(string, strlen(string));
+}
+
+/****************************************************************************
+ Lock a chain with timeout (in seconds).
+****************************************************************************/
+
+static int tdb_chainlock_with_timeout_internal( TDB_CONTEXT *tdb, TDB_DATA key, unsigned int timeout, int rw_type)
+{
+ /* Allow tdb_chainlock to be interrupted by an alarm. */
+ int ret;
+ gotalarm = 0;
+ tdb_set_lock_alarm(CONST_DISCARD(sig_atomic_t *, &gotalarm));
+
+ if (timeout) {
+ CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig);
+ alarm(timeout);
+ }
- key.dptr = keyval;
- key.dsize = strlen(keyval)+1;
+ if (rw_type == F_RDLCK)
+ ret = tdb_chainlock_read(tdb, key);
+ else
+ ret = tdb_chainlock(tdb, key);
+
+ if (timeout) {
+ alarm(0);
+ CatchSignal(SIGALRM, SIGNAL_CAST SIG_IGN);
+ if (gotalarm) {
+ DEBUG(0,("tdb_chainlock_with_timeout_internal: alarm (%u) timed out for key %s in tdb %s\n",
+ timeout, key.dptr, tdb->name ));
+ /* TODO: If we time out waiting for a lock, it might
+ * be nice to use F_GETLK to get the pid of the
+ * process currently holding the lock and print that
+ * as part of the debugging message. -- mbp */
+ return -1;
+ }
+ }
+
+ return ret;
+}
+
+/****************************************************************************
+ Write lock a chain. Return -1 if timeout or lock failed.
+****************************************************************************/
+
+int tdb_chainlock_with_timeout( TDB_CONTEXT *tdb, TDB_DATA key, unsigned int timeout)
+{
+ return tdb_chainlock_with_timeout_internal(tdb, key, timeout, F_WRLCK);
+}
+
+/****************************************************************************
+ Lock a chain by string. Return -1 if timeout or lock failed.
+****************************************************************************/
+
+int tdb_lock_bystring(TDB_CONTEXT *tdb, const char *keyval, unsigned int timeout)
+{
+ TDB_DATA key = make_tdb_data(keyval, strlen(keyval)+1);
+ return tdb_chainlock_with_timeout_internal(tdb, key, timeout, F_WRLCK);
+}
+
+/****************************************************************************
+ Unlock a chain by string.
+****************************************************************************/
+
+void tdb_unlock_bystring(TDB_CONTEXT *tdb, const char *keyval)
+{
+ TDB_DATA key = make_tdb_data(keyval, strlen(keyval)+1);
+
tdb_chainunlock(tdb, key);
}
-/* fetch a value by a arbitrary blob key, return -1 if not found */
-int tdb_fetch_int_byblob(TDB_CONTEXT *tdb, char *keyval, size_t len)
+/****************************************************************************
+ Read lock a chain by string. Return -1 if timeout or lock failed.
+****************************************************************************/
+
+int tdb_read_lock_bystring(TDB_CONTEXT *tdb, const char *keyval, unsigned int timeout)
{
- TDB_DATA key, data;
- int ret;
+ TDB_DATA key = make_tdb_data(keyval, strlen(keyval)+1);
+
+ return tdb_chainlock_with_timeout_internal(tdb, key, timeout, F_RDLCK);
+}
- key.dptr = keyval;
- key.dsize = len;
- data = tdb_fetch(tdb, key);
- if (!data.dptr || data.dsize != sizeof(int)) return -1;
+/****************************************************************************
+ Read unlock a chain by string.
+****************************************************************************/
+
+void tdb_read_unlock_bystring(TDB_CONTEXT *tdb, const char *keyval)
+{
+ TDB_DATA key = make_tdb_data(keyval, strlen(keyval)+1);
- memcpy(&ret, data.dptr, sizeof(int));
- free(data.dptr);
+ tdb_chainunlock_read(tdb, key);
+}
+
+
+/****************************************************************************
+ Fetch a int32 value by a arbitrary blob key, return -1 if not found.
+ Output is int32 in native byte order.
+****************************************************************************/
+
+int32 tdb_fetch_int32_byblob(TDB_CONTEXT *tdb, const char *keyval, size_t len)
+{
+ TDB_DATA key = make_tdb_data(keyval, len);
+ TDB_DATA data;
+ int32 ret;
+
+ data = tdb_fetch(tdb, key);
+ if (!data.dptr || data.dsize != sizeof(int32)) {
+ SAFE_FREE(data.dptr);
+ return -1;
+ }
+
+ ret = IVAL(data.dptr,0);
+ SAFE_FREE(data.dptr);
return ret;
}
-/* fetch a value by string key, return -1 if not found */
-int tdb_fetch_int(TDB_CONTEXT *tdb, char *keystr)
+/****************************************************************************
+ Fetch a int32 value by string key, return -1 if not found.
+ Output is int32 in native byte order.
+****************************************************************************/
+
+int32 tdb_fetch_int32(TDB_CONTEXT *tdb, const char *keystr)
{
- return tdb_fetch_int_byblob(tdb, keystr, strlen(keystr) + 1);
+ return tdb_fetch_int32_byblob(tdb, keystr, strlen(keystr) + 1);
}
-/* store a value by an arbitary blob key, return 0 on success, -1 on failure */
-int tdb_store_int_byblob(TDB_CONTEXT *tdb, char *keystr, size_t len, int v)
+/****************************************************************************
+ Store a int32 value by an arbitary blob key, return 0 on success, -1 on failure.
+ Input is int32 in native byte order. Output in tdb is in little-endian.
+****************************************************************************/
+
+int tdb_store_int32_byblob(TDB_CONTEXT *tdb, const char *keystr, size_t len, int32 v)
{
- TDB_DATA key, data;
+ TDB_DATA key = make_tdb_data(keystr, len);
+ TDB_DATA data;
+ int32 v_store;
- key.dptr = keystr;
- key.dsize = len;
- data.dptr = (void *)&v;
- data.dsize = sizeof(int);
+ SIVAL(&v_store,0,v);
+ data.dptr = (void *)&v_store;
+ data.dsize = sizeof(int32);
return tdb_store(tdb, key, data, TDB_REPLACE);
}
-/* store a value by string key, return 0 on success, -1 on failure */
-int tdb_store_int(TDB_CONTEXT *tdb, char *keystr, int v)
+/****************************************************************************
+ Store a int32 value by string key, return 0 on success, -1 on failure.
+ Input is int32 in native byte order. Output in tdb is in little-endian.
+****************************************************************************/
+
+int tdb_store_int32(TDB_CONTEXT *tdb, const char *keystr, int32 v)
{
- return tdb_store_int_byblob(tdb, keystr, strlen(keystr) + 1, v);
+ return tdb_store_int32_byblob(tdb, keystr, strlen(keystr) + 1, v);
}
-/* Store a buffer by a null terminated string key. Return 0 on success, -1
- on failure */
-int tdb_store_by_string(TDB_CONTEXT *tdb, char *keystr, void *buffer, int len)
+/****************************************************************************
+ Fetch a uint32 value by a arbitrary blob key, return -1 if not found.
+ Output is uint32 in native byte order.
+****************************************************************************/
+
+BOOL tdb_fetch_uint32_byblob(TDB_CONTEXT *tdb, const char *keyval, size_t len, uint32 *value)
{
- TDB_DATA key, data;
+ TDB_DATA key = make_tdb_data(keyval, len);
+ TDB_DATA data;
- key.dptr = keystr;
- key.dsize = strlen(keystr) + 1;
+ data = tdb_fetch(tdb, key);
+ if (!data.dptr || data.dsize != sizeof(uint32)) {
+ SAFE_FREE(data.dptr);
+ return False;
+ }
+
+ *value = IVAL(data.dptr,0);
+ SAFE_FREE(data.dptr);
+ return True;
+}
+
+/****************************************************************************
+ Fetch a uint32 value by string key, return -1 if not found.
+ Output is uint32 in native byte order.
+****************************************************************************/
+
+BOOL tdb_fetch_uint32(TDB_CONTEXT *tdb, const char *keystr, uint32 *value)
+{
+ return tdb_fetch_uint32_byblob(tdb, keystr, strlen(keystr) + 1, value);
+}
+
+/****************************************************************************
+ Store a uint32 value by an arbitary blob key, return 0 on success, -1 on failure.
+ Input is uint32 in native byte order. Output in tdb is in little-endian.
+****************************************************************************/
+
+BOOL tdb_store_uint32_byblob(TDB_CONTEXT *tdb, const char *keystr, size_t len, uint32 value)
+{
+ TDB_DATA key = make_tdb_data(keystr, len);
+ TDB_DATA data;
+ uint32 v_store;
+ BOOL ret = True;
+
+ SIVAL(&v_store, 0, value);
+ data.dptr = (void *)&v_store;
+ data.dsize = sizeof(uint32);
+
+ if (tdb_store(tdb, key, data, TDB_REPLACE) == -1)
+ ret = False;
+
+ return ret;
+}
- data.dptr = buffer;
- data.dsize = len;
+/****************************************************************************
+ Store a uint32 value by string key, return 0 on success, -1 on failure.
+ Input is uint32 in native byte order. Output in tdb is in little-endian.
+****************************************************************************/
- return tdb_store(tdb, key, data, TDB_REPLACE);
+BOOL tdb_store_uint32(TDB_CONTEXT *tdb, const char *keystr, uint32 value)
+{
+ return tdb_store_uint32_byblob(tdb, keystr, strlen(keystr) + 1, value);
+}
+/****************************************************************************
+ Store a buffer by a null terminated string key. Return 0 on success, -1
+ on failure.
+****************************************************************************/
+
+int tdb_store_bystring(TDB_CONTEXT *tdb, const char *keystr, TDB_DATA data, int flags)
+{
+ TDB_DATA key = make_tdb_data(keystr, strlen(keystr)+1);
+
+ return tdb_store(tdb, key, data, flags);
}
-/* Fetch a buffer using a null terminated string key. Don't forget to call
- free() on the result dptr. */
+/****************************************************************************
+ Fetch a buffer using a null terminated string key. Don't forget to call
+ free() on the result dptr.
+****************************************************************************/
-TDB_DATA tdb_fetch_by_string(TDB_CONTEXT *tdb, char *keystr)
+TDB_DATA tdb_fetch_bystring(TDB_CONTEXT *tdb, const char *keystr)
{
- TDB_DATA key;
+ TDB_DATA key = make_tdb_data(keystr, strlen(keystr)+1);
- key.dptr = keystr;
- key.dsize = strlen(keystr) + 1;
+ return tdb_fetch(tdb, key);
+}
+
+/****************************************************************************
+ Delete an entry using a null terminated string key.
+****************************************************************************/
+
+int tdb_delete_bystring(TDB_CONTEXT *tdb, const char *keystr)
+{
+ TDB_DATA key = make_tdb_data(keystr, strlen(keystr)+1);
- return tdb_fetch(tdb, key);
+ return tdb_delete(tdb, key);
}
-/* Atomic integer change. Returns old value. To create, set initial value in *oldval. */
+/****************************************************************************
+ Atomic integer change. Returns old value. To create, set initial value in *oldval.
+****************************************************************************/
-int tdb_change_int_atomic(TDB_CONTEXT *tdb, char *keystr, int *oldval, int change_val)
+int32 tdb_change_int32_atomic(TDB_CONTEXT *tdb, const char *keystr, int32 *oldval, int32 change_val)
{
- int val;
- int ret = -1;
+ int32 val;
+ int32 ret = -1;
- if (tdb_lock_bystring(tdb, keystr) == -1)
+ if (tdb_lock_bystring(tdb, keystr,0) == -1)
return -1;
- if ((val = tdb_fetch_int(tdb, keystr)) == -1) {
- if (tdb_error(tdb) != TDB_ERR_NOEXIST)
+ if ((val = tdb_fetch_int32(tdb, keystr)) == -1) {
+ /* The lookup failed */
+ if (tdb_error(tdb) != TDB_ERR_NOEXIST) {
+ /* but not because it didn't exist */
goto err_out;
-
+ }
+
+ /* Start with 'old' value */
val = *oldval;
} else {
+ /* It worked, set return value (oldval) to tdb data */
*oldval = val;
- val += change_val;
}
+
+ /* Increment value for storage and return next time */
+ val += change_val;
- if (tdb_store_int(tdb, keystr, val) == -1)
+ if (tdb_store_int32(tdb, keystr, val) == -1)
goto err_out;
ret = 0;
return ret;
}
-/* useful pair of routines for packing/unpacking data consisting of
- integers and strings */
-size_t tdb_pack(char *buf, int bufsize, char *fmt, ...)
+/****************************************************************************
+ Atomic unsigned integer change. Returns old value. To create, set initial value in *oldval.
+****************************************************************************/
+
+BOOL tdb_change_uint32_atomic(TDB_CONTEXT *tdb, const char *keystr, uint32 *oldval, uint32 change_val)
+{
+ uint32 val;
+ BOOL ret = False;
+
+ if (tdb_lock_bystring(tdb, keystr,0) == -1)
+ return False;
+
+ if (!tdb_fetch_uint32(tdb, keystr, &val)) {
+ /* It failed */
+ if (tdb_error(tdb) != TDB_ERR_NOEXIST) {
+ /* and not because it didn't exist */
+ goto err_out;
+ }
+
+ /* Start with 'old' value */
+ val = *oldval;
+
+ } else {
+ /* it worked, set return value (oldval) to tdb data */
+ *oldval = val;
+
+ }
+
+ /* get a new value to store */
+ val += change_val;
+
+ if (!tdb_store_uint32(tdb, keystr, val))
+ goto err_out;
+
+ ret = True;
+
+ err_out:
+
+ tdb_unlock_bystring(tdb, keystr);
+ return ret;
+}
+
+/****************************************************************************
+ Useful pair of routines for packing/unpacking data consisting of
+ integers and strings.
+****************************************************************************/
+
+size_t tdb_pack(char *buf, int bufsize, const char *fmt, ...)
{
va_list ap;
+ uint8 bt;
uint16 w;
uint32 d;
int i;
char *s;
char c;
char *buf0 = buf;
- char *fmt0 = fmt;
+ const char *fmt0 = fmt;
int bufsize0 = bufsize;
va_start(ap, fmt);
while (*fmt) {
switch ((c = *fmt++)) {
- case 'w':
+ case 'b': /* unsigned 8-bit integer */
+ len = 1;
+ bt = (uint8)va_arg(ap, int);
+ if (bufsize && bufsize >= len)
+ SSVAL(buf, 0, bt);
+ break;
+ case 'w': /* unsigned 16-bit integer */
len = 2;
w = (uint16)va_arg(ap, int);
- if (bufsize >= len) {
+ if (bufsize && bufsize >= len)
SSVAL(buf, 0, w);
- }
break;
- case 'd':
+ case 'd': /* signed 32-bit integer (standard int in most systems) */
len = 4;
d = va_arg(ap, uint32);
- if (bufsize >= len) {
+ if (bufsize && bufsize >= len)
SIVAL(buf, 0, d);
- }
break;
- case 'p':
+ case 'p': /* pointer */
len = 4;
p = va_arg(ap, void *);
d = p?1:0;
- if (bufsize >= len) {
+ if (bufsize && bufsize >= len)
SIVAL(buf, 0, d);
- }
break;
- case 'P':
+ case 'P': /* null-terminated string */
s = va_arg(ap,char *);
w = strlen(s);
len = w + 1;
- if (bufsize >= len) {
+ if (bufsize && bufsize >= len)
memcpy(buf, s, len);
- }
break;
- case 'f':
+ case 'f': /* null-terminated string */
s = va_arg(ap,char *);
w = strlen(s);
len = w + 1;
- if (bufsize >= len) {
+ if (bufsize && bufsize >= len)
memcpy(buf, s, len);
- }
break;
- case 'B':
+ case 'B': /* fixed-length string */
i = va_arg(ap, int);
s = va_arg(ap, char *);
len = 4+i;
- if (bufsize >= len) {
+ if (bufsize && bufsize >= len) {
SIVAL(buf, 0, i);
memcpy(buf+4, s, i);
}
}
buf += len;
- bufsize -= len;
+ if (bufsize)
+ bufsize -= len;
+ if (bufsize < 0)
+ bufsize = 0;
}
va_end(ap);
- DEBUG(8,("tdb_pack(%s, %d) -> %d\n",
+ DEBUG(18,("tdb_pack(%s, %d) -> %d\n",
fmt0, bufsize0, (int)PTR_DIFF(buf, buf0)));
return PTR_DIFF(buf, buf0);
}
+/****************************************************************************
+ Useful pair of routines for packing/unpacking data consisting of
+ integers and strings.
+****************************************************************************/
-
-/* useful pair of routines for packing/unpacking data consisting of
- integers and strings */
-
-int tdb_unpack(char *buf, int bufsize, char *fmt, ...)
+int tdb_unpack(char *buf, int bufsize, const char *fmt, ...)
{
va_list ap;
+ uint8 *bt;
uint16 *w;
uint32 *d;
int len;
char *s, **b;
char c;
char *buf0 = buf;
- char *fmt0 = fmt;
+ const char *fmt0 = fmt;
int bufsize0 = bufsize;
va_start(ap, fmt);
while (*fmt) {
switch ((c=*fmt++)) {
+ case 'b':
+ len = 1;
+ bt = va_arg(ap, uint8 *);
+ if (bufsize < len)
+ goto no_space;
+ *bt = SVAL(buf, 0);
+ break;
case 'w':
len = 2;
w = va_arg(ap, uint16 *);
- if (bufsize < len) goto no_space;
+ if (bufsize < len)
+ goto no_space;
*w = SVAL(buf, 0);
break;
case 'd':
len = 4;
d = va_arg(ap, uint32 *);
- if (bufsize < len) goto no_space;
+ if (bufsize < len)
+ goto no_space;
*d = IVAL(buf, 0);
break;
case 'p':
len = 4;
p = va_arg(ap, void **);
- if (bufsize < len) goto no_space;
+ if (bufsize < len)
+ goto no_space;
*p = (void *)IVAL(buf, 0);
break;
case 'P':
s = va_arg(ap,char *);
len = strlen(buf) + 1;
- if (bufsize < len || len > sizeof(pstring)) goto no_space;
+ if (bufsize < len || len > sizeof(pstring))
+ goto no_space;
memcpy(s, buf, len);
break;
case 'f':
s = va_arg(ap,char *);
len = strlen(buf) + 1;
- if (bufsize < len || len > sizeof(fstring)) goto no_space;
+ if (bufsize < len || len > sizeof(fstring))
+ goto no_space;
memcpy(s, buf, len);
break;
case 'B':
i = va_arg(ap, int *);
b = va_arg(ap, char **);
len = 4;
- if (bufsize < len) goto no_space;
+ if (bufsize < len)
+ goto no_space;
*i = IVAL(buf, 0);
- if (! *i) break;
+ if (! *i) {
+ *b = NULL;
+ break;
+ }
len += *i;
- if (bufsize < len) goto no_space;
- *b = (char *)malloc(*i);
- if (! *b) goto no_space;
+ if (bufsize < len)
+ goto no_space;
+ *b = (char *)SMB_MALLOC(*i);
+ if (! *b)
+ goto no_space;
memcpy(*b, buf+4, *i);
break;
default:
va_end(ap);
- DEBUG(8,("tdb_unpack(%s, %d) -> %d\n",
+ DEBUG(18,("tdb_unpack(%s, %d) -> %d\n",
fmt0, bufsize0, (int)PTR_DIFF(buf, buf0)));
return PTR_DIFF(buf, buf0);
no_space:
return -1;
}
+
+
+/**
+ * Pack SID passed by pointer
+ *
+ * @param pack_buf pointer to buffer which is to be filled with packed data
+ * @param bufsize size of packing buffer
+ * @param sid pointer to sid to be packed
+ *
+ * @return length of the packed representation of the whole structure
+ **/
+size_t tdb_sid_pack(char* pack_buf, int bufsize, DOM_SID* sid)
+{
+ int idx;
+ size_t len = 0;
+
+ if (!sid || !pack_buf) return -1;
+
+ len += tdb_pack(pack_buf + len, bufsize - len, "bb", sid->sid_rev_num,
+ sid->num_auths);
+
+ for (idx = 0; idx < 6; idx++) {
+ len += tdb_pack(pack_buf + len, bufsize - len, "b", sid->id_auth[idx]);
+ }
+
+ for (idx = 0; idx < MAXSUBAUTHS; idx++) {
+ len += tdb_pack(pack_buf + len, bufsize - len, "d", sid->sub_auths[idx]);
+ }
+
+ return len;
+}
+
+
+/**
+ * Unpack SID into a pointer
+ *
+ * @param pack_buf pointer to buffer with packed representation
+ * @param bufsize size of the buffer
+ * @param sid pointer to sid structure to be filled with unpacked data
+ *
+ * @return size of structure unpacked from buffer
+ **/
+size_t tdb_sid_unpack(char* pack_buf, int bufsize, DOM_SID* sid)
+{
+ int idx, len = 0;
+
+ if (!sid || !pack_buf) return -1;
+
+ len += tdb_unpack(pack_buf + len, bufsize - len, "bb",
+ &sid->sid_rev_num, &sid->num_auths);
+
+ for (idx = 0; idx < 6; idx++) {
+ len += tdb_unpack(pack_buf + len, bufsize - len, "b", &sid->id_auth[idx]);
+ }
+
+ for (idx = 0; idx < MAXSUBAUTHS; idx++) {
+ len += tdb_unpack(pack_buf + len, bufsize - len, "d", &sid->sub_auths[idx]);
+ }
+
+ return len;
+}
+
+
+/**
+ * Pack TRUSTED_DOM_PASS passed by pointer
+ *
+ * @param pack_buf pointer to buffer which is to be filled with packed data
+ * @param bufsize size of the buffer
+ * @param pass pointer to trusted domain password to be packed
+ *
+ * @return length of the packed representation of the whole structure
+ **/
+size_t tdb_trusted_dom_pass_pack(char* pack_buf, int bufsize, TRUSTED_DOM_PASS* pass)
+{
+ int idx, len = 0;
+
+ if (!pack_buf || !pass) return -1;
+
+ /* packing unicode domain name and password */
+ len += tdb_pack(pack_buf + len, bufsize - len, "d", pass->uni_name_len);
+
+ for (idx = 0; idx < 32; idx++)
+ len += tdb_pack(pack_buf + len, bufsize - len, "w", pass->uni_name[idx]);
+
+ len += tdb_pack(pack_buf + len, bufsize - len, "dPd", pass->pass_len,
+ pass->pass, pass->mod_time);
+
+ /* packing SID structure */
+ len += tdb_sid_pack(pack_buf + len, bufsize - len, &pass->domain_sid);
+
+ return len;
+}
+
+
+/**
+ * Unpack TRUSTED_DOM_PASS passed by pointer
+ *
+ * @param pack_buf pointer to buffer with packed representation
+ * @param bufsize size of the buffer
+ * @param pass pointer to trusted domain password to be filled with unpacked data
+ *
+ * @return size of structure unpacked from buffer
+ **/
+size_t tdb_trusted_dom_pass_unpack(char* pack_buf, int bufsize, TRUSTED_DOM_PASS* pass)
+{
+ int idx, len = 0;
+
+ if (!pack_buf || !pass) return -1;
+
+ /* unpack unicode domain name and plaintext password */
+ len += tdb_unpack(pack_buf, bufsize - len, "d", &pass->uni_name_len);
+
+ for (idx = 0; idx < 32; idx++)
+ len += tdb_unpack(pack_buf + len, bufsize - len, "w", &pass->uni_name[idx]);
+
+ len += tdb_unpack(pack_buf + len, bufsize - len, "dPd", &pass->pass_len, &pass->pass,
+ &pass->mod_time);
+
+ /* unpack domain sid */
+ len += tdb_sid_unpack(pack_buf + len, bufsize - len, &pass->domain_sid);
+
+ return len;
+}
+
+
+/****************************************************************************
+ Log tdb messages via DEBUG().
+****************************************************************************/
+
+static void tdb_log(TDB_CONTEXT *tdb, int level, const char *format, ...)
+{
+ va_list ap;
+ char *ptr = NULL;
+
+ va_start(ap, format);
+ vasprintf(&ptr, format, ap);
+ va_end(ap);
+
+ if (!ptr || !*ptr)
+ return;
+
+ DEBUG(level, ("tdb(%s): %s", tdb->name ? tdb->name : "unnamed", ptr));
+ SAFE_FREE(ptr);
+}
+
+/****************************************************************************
+ Like tdb_open() but also setup a logging function that redirects to
+ the samba DEBUG() system.
+****************************************************************************/
+
+TDB_CONTEXT *tdb_open_log(const char *name, int hash_size, int tdb_flags,
+ int open_flags, mode_t mode)
+{
+ TDB_CONTEXT *tdb;
+
+ if (!lp_use_mmap())
+ tdb_flags |= TDB_NOMMAP;
+
+ tdb = tdb_open_ex(name, hash_size, tdb_flags,
+ open_flags, mode, tdb_log, NULL);
+ if (!tdb)
+ return NULL;
+
+ return tdb;
+}
+
+
+/****************************************************************************
+ Allow tdb_delete to be used as a tdb_traversal_fn.
+****************************************************************************/
+
+int tdb_traverse_delete_fn(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf,
+ void *state)
+{
+ return tdb_delete(the_tdb, key);
+}
+
+
+
+/**
+ * Search across the whole tdb for keys that match the given pattern
+ * return the result as a list of keys
+ *
+ * @param tdb pointer to opened tdb file context
+ * @param pattern searching pattern used by fnmatch(3) functions
+ *
+ * @return list of keys found by looking up with given pattern
+ **/
+TDB_LIST_NODE *tdb_search_keys(TDB_CONTEXT *tdb, const char* pattern)
+{
+ TDB_DATA key, next;
+ TDB_LIST_NODE *list = NULL;
+ TDB_LIST_NODE *rec = NULL;
+ TDB_LIST_NODE *tmp = NULL;
+
+ for (key = tdb_firstkey(tdb); key.dptr; key = next) {
+ /* duplicate key string to ensure null-termination */
+ char *key_str = (char*) SMB_STRNDUP(key.dptr, key.dsize);
+ if (!key_str) {
+ DEBUG(0, ("tdb_search_keys: strndup() failed!\n"));
+ smb_panic("strndup failed!\n");
+ }
+
+ DEBUG(18, ("checking %s for match to pattern %s\n", key_str, pattern));
+
+ next = tdb_nextkey(tdb, key);
+
+ /* do the pattern checking */
+ if (fnmatch(pattern, key_str, 0) == 0) {
+ rec = SMB_MALLOC_P(TDB_LIST_NODE);
+ ZERO_STRUCTP(rec);
+
+ rec->node_key = key;
+
+ DLIST_ADD_END(list, rec, tmp);
+
+ DEBUG(18, ("checking %s matched pattern %s\n", key_str, pattern));
+ } else {
+ free(key.dptr);
+ }
+
+ /* free duplicated key string */
+ free(key_str);
+ }
+
+ return list;
+
+}
+
+
+/**
+ * Free the list returned by tdb_search_keys
+ *
+ * @param node list of results found by tdb_search_keys
+ **/
+void tdb_search_list_free(TDB_LIST_NODE* node)
+{
+ TDB_LIST_NODE *next_node;
+
+ while (node) {
+ next_node = node->next;
+ SAFE_FREE(node->node_key.dptr);
+ SAFE_FREE(node);
+ node = next_node;
+ };
+}
git.samba.org / samba.git / blobdiff