summaryrefslogtreecommitdiff
path: root/source4/lib/registry/common/reg_util.c
blob: 1d1f7703245d38fcd4ec8530cc3b9f96b5351bb2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
/* 
   Unix SMB/CIFS implementation.
   Transparent registry backend handling
   Copyright (C) Jelmer Vernooij			2003-2004.

   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
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "includes.h"
#include "registry.h"

#undef DBGC_CLASS
#define DBGC_CLASS DBGC_REGISTRY

/* Return string description of registry value type */
const char *str_regtype(int type)
{
	switch(type) {
	case REG_SZ: return "STRING";
	case REG_DWORD: return "DWORD";
	case REG_BINARY: return "BINARY";
	}
	return "Unknown";
}

char *reg_val_data_string(TALLOC_CTX *mem_ctx, struct registry_value *v)
{ 
  char *asciip;
  char *ret = NULL;
  int i;

  if(v->data_len == 0) return talloc_strdup(mem_ctx, "");

  switch (v->data_type) {
  case REG_SZ:
	  return talloc_strndup(mem_ctx, v->data_blk, v->data_len);

  case REG_EXPAND_SZ:
	  return talloc_strndup(mem_ctx, v->data_blk, v->data_len);

  case REG_BINARY:
	  ret = talloc(mem_ctx, v->data_len * 3 + 2);
	  asciip = ret;
	  for (i=0; i<v->data_len; i++) { 
		  int str_rem = v->data_len * 3 - (asciip - ret);
		  asciip += snprintf(asciip, str_rem, "%02x", *(uint8_t *)(((char *)v->data_blk)+i));
		  if (i < v->data_len && str_rem > 0)
			  *asciip = ' '; asciip++;	
	  }
	  *asciip = '\0';
	  return ret;

  case REG_DWORD:
	  if (*(int *)v->data_blk == 0)
		  return talloc_strdup(mem_ctx, "0");

	  return talloc_asprintf(mem_ctx, "0x%x", *(int *)v->data_blk);

  case REG_MULTI_SZ:
	/* FIXME */
    break;

  default:
    break;
  } 

  return ret;
}

char *reg_val_description(TALLOC_CTX *mem_ctx, struct registry_value *val) 
{
	return talloc_asprintf(mem_ctx, "%s = %s : %s", val->name?val->name:"<No Name>", str_regtype(val->data_type), reg_val_data_string(mem_ctx, val));
}

BOOL reg_val_set_string(struct registry_value *val, char *str)
{
	/* FIXME */
	return False;
}

WERROR reg_key_get_subkey_val(TALLOC_CTX *mem_ctx, struct registry_key *key, const char *subname, const char *valname, struct registry_value **val)
{
	struct registry_key *k;
	WERROR error = reg_key_get_subkey_by_name(mem_ctx, key, subname, &k);
	if(!W_ERROR_IS_OK(error)) return error;
	
	return reg_key_get_value_by_name(mem_ctx, k, valname, val);
}

/***********************************************************************
 Utility function for splitting the base path of a registry path off
 by setting base and new_path to the apprapriate offsets withing the
 path.
 
 WARNING!!  Does modify the original string!
 ***********************************************************************/

BOOL reg_split_path( char *path, char **base, char **new_path )
{
	char *p;
	
	*new_path = *base = NULL;
	
	if ( !path)
		return False;
	
	*base = path;
	
	p = strchr( path, '\\' );
	
	if ( p ) {
		*p = '\0';
		*new_path = p+1;
	}
	
	return True;
}

/**
 * Replace all \'s with /'s
 */
char *reg_path_win2unix(char *path) 
{
	int i;
	for(i = 0; path[i]; i++) {
		if(path[i] == '\\') path[i] = '/';
	}
	return path;
}
/**
 * Replace all /'s with \'s
 */
char *reg_path_unix2win(char *path) 
{
	int i;
	for(i = 0; path[i]; i++) {
		if(path[i] == '/') path[i] = '\\';
	}
	return path;
}

/* Open a key by name (including the predefined key name!) */
WERROR reg_open_key_abs(TALLOC_CTX *mem_ctx, struct registry_context *handle, const char *name, struct registry_key **result)
{
	struct registry_key *predef;
	WERROR error;
	int predeflength;
	char *predefname;

	if(strchr(name, '\\')) predeflength = strchr(name, '\\')-name;
	else predeflength = strlen(name);

	predefname = strndup(name, predeflength);
	error = reg_get_predefined_key_by_name(handle, predefname, &predef);
	SAFE_FREE(predefname);

	if(!W_ERROR_IS_OK(error)) {
		return error;
	}

	if (strchr(name, '\\')) {
		return reg_open_key(mem_ctx, predef, strchr(name, '\\')+1, result);
	} else {
		*result = predef;
		return WERR_OK;
	}
}

static WERROR get_abs_parent(TALLOC_CTX *mem_ctx, struct registry_context *ctx, const char *path, struct registry_key **parent, const char **name)
{
	char *parent_name;
	WERROR error;
	
	if (strchr(path, '\\') == NULL) {
		return WERR_FOOBAR;
	}
	
	parent_name = talloc_strndup(mem_ctx, path, strrchr(path, '\\')-1-path);

	error = reg_open_key_abs(mem_ctx, ctx, parent_name, parent);
	if (!W_ERROR_IS_OK(error)) {
		return error;
	}
	
	*name = talloc_strdup(mem_ctx, strchr(path, '\\')+1);

	return WERR_OK;
}

WERROR reg_key_del_abs(struct registry_context *ctx, const char *path)
{
	struct registry_key *parent;
	const char *n;
	TALLOC_CTX *mem_ctx = talloc_init("reg_key_del_abs");
	WERROR error;
	
	if (!strchr(path, '\\')) {
		return WERR_FOOBAR;
	}
	
	error = get_abs_parent(mem_ctx, ctx, path, &parent, &n);
	if (W_ERROR_IS_OK(error)) {
		error = reg_key_del(parent, n);
	}

	talloc_destroy(mem_ctx);

	return error;
}

WERROR reg_key_add_abs(TALLOC_CTX *mem_ctx, struct registry_context *ctx, const char *path, uint32 access_mask, SEC_DESC *sec_desc, struct registry_key **result)
{
	struct registry_key *parent;
	const char *n;
	WERROR error;
	
	if (!strchr(path, '\\')) {
		return WERR_FOOBAR;
	}
	
	error = get_abs_parent(mem_ctx, ctx, path, &parent, &n);
	if (W_ERROR_IS_OK(error)) {
		error = reg_key_add_name(mem_ctx, parent, n, access_mask, sec_desc, result);
	}

	return error;
}