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
240
241
|
/* $Id$ */
/***
This file is part of syrep.
syrep 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.
syrep 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 syrep; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
***/
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <time.h>
#include <limits.h>
#include <sys/stat.h>
#include <errno.h>
#include <unistd.h>
#include "context.h"
#include "package.h"
#include "util.h"
int db_context_free(struct syrep_db_context* c) {
if (c) {
if (c->db_id_meta)
c->db_id_meta->close(c->db_id_meta, 0);
if (c->db_md_name)
c->db_md_name->close(c->db_md_name, 0);
if (c->db_name_md)
c->db_name_md->close(c->db_name_md, 0);
if (c->db_md_lastname)
c->db_md_lastname->close(c->db_md_lastname, 0);
if (c->db_name_lastmd)
c->db_name_lastmd->close(c->db_name_lastmd, 0);
if (c->db_version_timestamp)
c->db_version_timestamp->close(c->db_version_timestamp, 0);
if (c->package)
package_remove(c->package);
if (c->origin)
free(c->origin);
free(c);
}
return 0;
}
static DB* open_db(const char*path, int dup) {
int ret;
DB* db;
if ((ret = db_create(&db, NULL, 0))) {
fprintf(stderr, "db_create: %s\n", db_strerror(ret));
return NULL;
}
if (dup)
db->set_flags(db, DB_DUPSORT);
//db->set_pagesize(db, 4096*8);
if ((ret = db->open(db, NULL, path, NULL, DB_BTREE, DB_CREATE, 0664))) {
db->err(db, ret, "open(%s)", path);
db->close(db, 0);
return NULL;
}
return db;
}
struct syrep_db_context* db_context_open(const char *filename, int force) {
struct syrep_db_context *c = NULL;
const char* path;
FILE *f;
if (!(c = malloc(sizeof(struct syrep_db_context))))
goto fail;
memset(c, 0, sizeof(struct syrep_db_context));
if (!(c->package = package_open(filename, force)))
goto fail;
path = package_get_item(c->package, "timestamp", 1);
if ((f = fopen(path, "r"))) {
if (fscanf(f, "%i", &c->timestamp) != 1)
c->timestamp = 0;
fclose(f);
}
if (!c->timestamp)
c->timestamp = time(NULL);
path = package_get_item(c->package, "version", 1);
if ((f = fopen(path, "r"))) {
if (fscanf(f, "%u", &c->version) != 1)
c->version = 0;
fclose(f);
}
path = package_get_item(c->package, "origin", 1);
if ((f = fopen(path, "r"))) {
char hn[256];
if (fgets(hn, sizeof(hn), f)) {
char *nl;
if ((nl = strchr(hn, '\n')))
*nl = 0;
if (hn[0])
c->origin = strdup(hn);
}
fclose(f);
} else
c->version = 0;
if (!c->origin) {
char hn[256];
if (gethostname(hn, sizeof(hn)) < 0)
goto fail;
c->origin = strdup(hn);
}
/* Creating database id_meta */
if (!(c->db_id_meta = open_db(package_get_item(c->package, "id_meta", 1), 0)))
goto fail;
/* Creating database md_name */
if (!(c->db_md_name = open_db(package_get_item(c->package, "md_name", 1), 1)))
goto fail;
/* Creating database name_md */
if (!(c->db_name_md = open_db(package_get_item(c->package, "name_md", 1), 1)))
goto fail;
/* Creating database name_lastmd */
if (!(c->db_name_lastmd = open_db(package_get_item(c->package, "name_lastmd", 1), 0)))
goto fail;
/* Creating database md_lastname */
if (!(c->db_md_lastname = open_db(package_get_item(c->package, "md_lastname", 1), 0)))
goto fail;
/* Creating database version_timestamp */
if (!(c->db_version_timestamp = open_db(package_get_item(c->package, "version_timestamp", 1), 0)))
goto fail;
return c;
fail:
db_context_free(c);
return NULL;
}
int db_context_save(struct syrep_db_context *c, const char *filename) {
FILE *f;
assert(c && c->package);
if (c->db_id_meta)
c->db_id_meta->sync(c->db_id_meta, 0);
if (c->db_md_name)
c->db_md_name->sync(c->db_md_name, 0);
if (c->db_name_md)
c->db_name_md->sync(c->db_name_md, 0);
if (c->db_md_lastname)
c->db_md_lastname->sync(c->db_md_lastname, 0);
if (c->db_name_lastmd)
c->db_name_lastmd->sync(c->db_name_lastmd, 0);
if (c->db_version_timestamp)
c->db_version_timestamp->sync(c->db_version_timestamp, 0);
if (!(f = fopen(package_get_item(c->package, "timestamp", 1), "w+")))
return -1;
fprintf(f, "%i\n", c->timestamp);
fclose(f);
if (!(f = fopen(package_get_item(c->package, "version", 1), "w+")))
return -1;
fprintf(f, "%u\n", c->version);
fclose(f);
if (!(f = fopen(package_get_item(c->package, "origin", 1), "w+")))
return -1;
fprintf(f, "%s\n", c->origin);
fclose(f);
return package_save(c->package, filename);
}
int db_context_origin_warn(struct syrep_db_context *c) {
char hn[256];
assert(c);
if (gethostname(hn, sizeof(hn)) < 0)
return -1;
if (strcmp(hn, c->origin)) {
int q;
if (!(q = question("WARNING: Snapshot is not from local host! Continue?", "ny")))
return -1;
if (q != 'y')
return 1;
}
return 0;
}
|
