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, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
26 * @brief This is part of the net tool which is basically command
27 * line wrapper for gencache.c functions (mainly for testing)
33 * These routines are used via gencache_iterate() to display the cache's contents
34 * (print_cache_entry) and to flush it (delete_cache_entry).
35 * Both of them are defined by first arg of gencache_iterate() routine.
37 static void print_cache_entry(const char* keystr, const char* datastr,
38 const time_t timeout, void* dptr)
41 char *alloc_str = NULL;
42 time_t now_t = time(NULL);
43 struct tm timeout_tm, *now_tm;
44 /* localtime returns statically allocated pointer, so timeout_tm
45 has to be copied somewhere else */
47 now_tm = localtime(&timeout);
51 memcpy(&timeout_tm, now_tm, sizeof(struct tm));
52 now_tm = localtime(&now_t);
57 /* form up timeout string depending whether it's today's date or not */
58 if (timeout_tm.tm_year != now_tm->tm_year ||
59 timeout_tm.tm_mon != now_tm->tm_mon ||
60 timeout_tm.tm_mday != now_tm->tm_mday) {
62 timeout_str = asctime(&timeout_tm);
66 timeout_str[strlen(timeout_str) - 1] = '\0'; /* remove tailing CR */
68 asprintf(&alloc_str, "%.2d:%.2d:%.2d", timeout_tm.tm_hour,
69 timeout_tm.tm_min, timeout_tm.tm_sec);
73 timeout_str = alloc_str;
76 d_printf("Key: %s\t Timeout: %s\t Value: %s %s\n", keystr,
77 timeout_str, datastr, timeout > now_t ? "": "(expired)");
82 static void delete_cache_entry(const char* keystr, const char* datastr,
83 const time_t timeout, void* dptr)
85 if (!gencache_del(keystr))
86 d_fprintf(stderr, "Couldn't delete entry! key = %s\n", keystr);
91 * Parse text representation of timeout value
93 * @param timeout_str string containing text representation of the timeout
94 * @return numeric timeout of time_t type
96 static time_t parse_timeout(const char* timeout_str)
98 char sign = '\0', *number = NULL, unit = '\0';
99 int len, number_begin, number_end;
103 if (timeout_str[0] == '!' || timeout_str[0] == '+') {
104 sign = timeout_str[0];
111 len = strlen(timeout_str);
112 switch (timeout_str[len - 1]) {
117 case 'w': unit = timeout_str[len - 1];
120 /* number detection */
121 len = (sign) ? strlen(&timeout_str[number_begin]) : len;
122 number_end = (unit) ? len - 1 : len;
123 number = SMB_STRNDUP(&timeout_str[number_begin], number_end);
125 /* calculate actual timeout value */
126 timeout = (time_t)atoi(number);
129 case 'm': timeout *= 60; break;
130 case 'h': timeout *= 60*60; break;
131 case 'd': timeout *= 60*60*24; break;
132 case 'w': timeout *= 60*60*24*7; break; /* that's fair enough, I think :) */
136 case '!': timeout = time(NULL) - timeout; break;
138 default: timeout += time(NULL); break;
141 if (number) SAFE_FREE(number);
147 * Add an entry to the cache. If it does exist, then set it.
149 * @param argv key, value and timeout are passed in command line
150 * @return 0 on success, otherwise failure
152 static int net_cache_add(int argc, const char **argv)
154 const char *keystr, *datastr, *timeout_str;
158 d_printf("\nUsage: net cache add <key string> <data string> <timeout>\n");
164 timeout_str = argv[2];
166 /* parse timeout given in command line */
167 timeout = parse_timeout(timeout_str);
169 d_fprintf(stderr, "Invalid timeout argument.\n");
173 if (gencache_set(keystr, datastr, timeout)) {
174 d_printf("New cache entry stored successfully.\n");
179 d_fprintf(stderr, "Entry couldn't be added. Perhaps there's already such a key.\n");
185 * Delete an entry in the cache
187 * @param argv key to delete an entry of
188 * @return 0 on success, otherwise failure
190 static int net_cache_del(int argc, const char **argv)
192 const char *keystr = argv[0];
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 argv key to search an entry of
213 * @return 0 on success, otherwise failure
215 static int net_cache_get(int argc, const char **argv)
217 const char* keystr = argv[0];
222 d_printf("\nUsage: net cache get <key>\n");
226 if (gencache_get(keystr, &valuestr, &timeout)) {
227 print_cache_entry(keystr, valuestr, timeout, NULL);
231 d_fprintf(stderr, "Failed to find entry\n");
237 * Search an entry/entries in the cache
239 * @param argv key pattern to match the entries to
240 * @return 0 on success, otherwise failure
242 static int net_cache_search(int argc, const char **argv)
247 d_printf("Usage: net cache search <pattern>\n");
252 gencache_iterate(print_cache_entry, NULL, pattern);
258 * List the contents of the cache
260 * @param argv ignored in this functionailty
261 * @return always returns 0
263 static int net_cache_list(int argc, const char **argv)
265 const char* pattern = "*";
266 gencache_iterate(print_cache_entry, NULL, pattern);
273 * Flush the whole cache
275 * @param argv ignored in this functionality
276 * @return always returns 0
278 static int net_cache_flush(int argc, const char **argv)
280 const char* pattern = "*";
281 gencache_iterate(delete_cache_entry, NULL, pattern);
290 * @param argv ignored in this functionality
291 * @return always returns -1
293 static int net_cache_usage(int argc, const char **argv)
295 d_printf(" net cache add \t add add new cache entry\n");
296 d_printf(" net cache del \t delete existing cache entry by key\n");
297 d_printf(" net cache flush \t delete all entries existing in the cache\n");
298 d_printf(" net cache get \t get cache entry by key\n");
299 d_printf(" net cache search \t search for entries in the cache, by given pattern\n");
300 d_printf(" net cache list \t list all cache entries (just like search for \"*\")\n");
306 * Entry point to 'net cache' subfunctionality
308 * @param argv arguments passed to further called functions
309 * @return whatever further functions return
311 int net_cache(int argc, const char **argv)
313 struct functable func[] = {
314 {"add", net_cache_add},
315 {"del", net_cache_del},
316 {"get", net_cache_get},
317 {"search", net_cache_search},
318 {"list", net_cache_list},
319 {"flush", net_cache_flush},
323 return net_run_function(argc, argv, func, net_cache_usage);