2
Samba Unix/Linux SMB client library
3
Distributed SMB/CIFS Server Management Utility
4
Copyright (C) Rafal Szczesniak 2002
6
This program is free software; you can redistribute it and/or modify
7
it under the terms of the GNU General Public License as published by
8
the Free Software Foundation; either version 3 of the License, or
9
(at your option) any later version.
11
This program is distributed in the hope that it will be useful,
12
but WITHOUT ANY WARRANTY; without even the implied warranty of
13
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
GNU General Public License for more details.
16
You should have received a copy of the GNU General Public License
17
along with this program. If not, see <http://www.gnu.org/licenses/>.
25
* @brief This is part of the net tool which is basically command
26
* line wrapper for gencache.c functions (mainly for testing)
32
* These routines are used via gencache_iterate() to display the cache's contents
33
* (print_cache_entry) and to flush it (delete_cache_entry).
34
* Both of them are defined by first arg of gencache_iterate() routine.
36
static void print_cache_entry(const char* keystr, const char* datastr,
37
const time_t timeout, void* dptr)
40
char *alloc_str = NULL;
41
time_t now_t = time(NULL);
42
struct tm timeout_tm, *now_tm;
43
/* localtime returns statically allocated pointer, so timeout_tm
44
has to be copied somewhere else */
46
now_tm = localtime(&timeout);
50
memcpy(&timeout_tm, now_tm, sizeof(struct tm));
51
now_tm = localtime(&now_t);
56
/* form up timeout string depending whether it's today's date or not */
57
if (timeout_tm.tm_year != now_tm->tm_year ||
58
timeout_tm.tm_mon != now_tm->tm_mon ||
59
timeout_tm.tm_mday != now_tm->tm_mday) {
61
timeout_str = asctime(&timeout_tm);
65
timeout_str[strlen(timeout_str) - 1] = '\0'; /* remove tailing CR */
67
if (asprintf(&alloc_str, "%.2d:%.2d:%.2d", timeout_tm.tm_hour,
68
timeout_tm.tm_min, timeout_tm.tm_sec) == -1) {
71
timeout_str = alloc_str;
74
d_printf("Key: %s\t Timeout: %s\t Value: %s %s\n", keystr,
75
timeout_str, datastr, timeout > now_t ? "": "(expired)");
80
static void delete_cache_entry(const char* keystr, const char* datastr,
81
const time_t timeout, void* dptr)
83
if (!gencache_del(keystr))
84
d_fprintf(stderr, "Couldn't delete entry! key = %s\n", keystr);
89
* Parse text representation of timeout value
91
* @param timeout_str string containing text representation of the timeout
92
* @return numeric timeout of time_t type
94
static time_t parse_timeout(const char* timeout_str)
96
char sign = '\0', *number = NULL, unit = '\0';
97
int len, number_begin, number_end;
101
if (timeout_str[0] == '!' || timeout_str[0] == '+') {
102
sign = timeout_str[0];
109
len = strlen(timeout_str);
110
switch (timeout_str[len - 1]) {
115
case 'w': unit = timeout_str[len - 1];
118
/* number detection */
119
len = (sign) ? strlen(&timeout_str[number_begin]) : len;
120
number_end = (unit) ? len - 1 : len;
121
number = SMB_STRNDUP(&timeout_str[number_begin], number_end);
123
/* calculate actual timeout value */
124
timeout = (time_t)atoi(number);
127
case 'm': timeout *= 60; break;
128
case 'h': timeout *= 60*60; break;
129
case 'd': timeout *= 60*60*24; break;
130
case 'w': timeout *= 60*60*24*7; break; /* that's fair enough, I think :) */
134
case '!': timeout = time(NULL) - timeout; break;
136
default: timeout += time(NULL); break;
139
if (number) SAFE_FREE(number);
145
* Add an entry to the cache. If it does exist, then set it.
147
* @param c A net_context structure
148
* @param argv key, value and timeout are passed in command line
149
* @return 0 on success, otherwise failure
151
static int net_cache_add(struct net_context *c, int argc, const char **argv)
153
const char *keystr, *datastr, *timeout_str;
156
if (argc < 3 || c->display_usage) {
157
d_printf("\nUsage: net cache add <key string> <data string> <timeout>\n");
163
timeout_str = argv[2];
165
/* parse timeout given in command line */
166
timeout = parse_timeout(timeout_str);
168
d_fprintf(stderr, "Invalid timeout argument.\n");
172
if (gencache_set(keystr, datastr, timeout)) {
173
d_printf("New cache entry stored successfully.\n");
178
d_fprintf(stderr, "Entry couldn't be added. Perhaps there's already such a key.\n");
184
* Delete an entry in the cache
186
* @param c A net_context structure
187
* @param argv key to delete an entry of
188
* @return 0 on success, otherwise failure
190
static int net_cache_del(struct net_context *c, int argc, const char **argv)
192
const char *keystr = argv[0];
194
if (argc < 1 || c->display_usage) {
195
d_printf("\nUsage: net cache del <key string>\n");
199
if(gencache_del(keystr)) {
200
d_printf("Entry deleted.\n");
204
d_fprintf(stderr, "Couldn't delete specified entry\n");
210
* Get and display an entry from the cache
212
* @param c A net_context structure
213
* @param argv key to search an entry of
214
* @return 0 on success, otherwise failure
216
static int net_cache_get(struct net_context *c, int argc, const char **argv)
218
const char* keystr = argv[0];
219
char* valuestr = NULL;
222
if (argc < 1 || c->display_usage) {
223
d_printf("\nUsage: net cache get <key>\n");
227
if (gencache_get(keystr, &valuestr, &timeout)) {
228
print_cache_entry(keystr, valuestr, timeout, NULL);
233
d_fprintf(stderr, "Failed to find entry\n");
239
* Search an entry/entries in the cache
241
* @param c A net_context structure
242
* @param argv key pattern to match the entries to
243
* @return 0 on success, otherwise failure
245
static int net_cache_search(struct net_context *c, int argc, const char **argv)
249
if (argc < 1 || c->display_usage) {
250
d_printf("Usage: net cache search <pattern>\n");
255
gencache_iterate(print_cache_entry, NULL, pattern);
261
* List the contents of the cache
263
* @param c A net_context structure
264
* @param argv ignored in this functionailty
265
* @return always returns 0
267
static int net_cache_list(struct net_context *c, int argc, const char **argv)
269
const char* pattern = "*";
271
if (c->display_usage) {
274
" List all cache entries.\n");
277
gencache_iterate(print_cache_entry, NULL, pattern);
284
* Flush the whole cache
286
* @param c A net_context structure
287
* @param argv ignored in this functionality
288
* @return always returns 0
290
static int net_cache_flush(struct net_context *c, int argc, const char **argv)
292
const char* pattern = "*";
293
if (c->display_usage) {
296
" Delete all cache entries.\n");
299
gencache_iterate(delete_cache_entry, NULL, pattern);
305
* Entry point to 'net cache' subfunctionality
307
* @param c A net_context structure
308
* @param argv arguments passed to further called functions
309
* @return whatever further functions return
311
int net_cache(struct net_context *c, int argc, const char **argv)
313
struct functable func[] = {
318
"Add new cache entry",
319
"net cache add <key string> <data string> <timeout>\n"
320
" Add new cache entry.\n"
321
" key string\tKey string to add cache data under.\n"
322
" data string\tData to store under given key.\n"
323
" timeout\tTimeout for cache data."
329
"Delete existing cache entry by key",
330
"net cache del <key string>\n"
331
" Delete existing cache entry by key.\n"
332
" key string\tKey string to delete."
338
"Get cache entry by key",
339
"net cache get <key string>\n"
340
" Get cache entry by key.\n"
341
" key string\tKey string to look up cache entry for."
348
"Search entry by pattern",
349
"net cache search <pattern>\n"
350
" Search entry by pattern.\n"
351
" pattern\tPattern to search for in cache."
357
"List all cache entries",
359
" List all cache entries"
365
"Delete all cache entries",
367
" Delete all cache entries"
369
{NULL, NULL, 0, NULL, NULL}
372
return net_run_function(c, argc, argv, "net cache", func);