--- /dev/null
+/*
+ Samba Unix/Linux SMB client library
+ Distributed SMB/CIFS Server Management Utility
+ 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
+ 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 "net.h"
+
+/**
+ * @file net_cache.c
+ * @brief This is part of the net tool which is basically command
+ * line wrapper for gencache.c functions (mainly for testing)
+ *
+ **/
+
+
+/*
+ * These routines are used via gencache_iterate() to display the cache's contents
+ * (print_cache_entry) and to flush it (delete_cache_entry).
+ * Both of them are defined by first arg of gencache_iterate() routine.
+ */
+static void print_cache_entry(const char* keystr, const char* datastr,
+ const time_t timeout, void* dptr)
+{
+ char* timeout_str;
+ time_t now_t = time(NULL);
+ struct tm timeout_tm, *now_tm;
+ /* localtime returns statically allocated pointer, so timeout_tm
+ has to be copied somewhere else */
+ memcpy(&timeout_tm, localtime(&timeout), sizeof(struct tm));
+ now_tm = localtime(&now_t);
+
+ /* form up timeout string depending whether it's today's date or not */
+ if (timeout_tm.tm_year != now_tm->tm_year ||
+ timeout_tm.tm_mon != now_tm->tm_mon ||
+ timeout_tm.tm_mday != now_tm->tm_mday) {
+
+ timeout_str = asctime(&timeout_tm);
+ timeout_str[strlen(timeout_str) - 1] = '\0'; /* remove tailing CR */
+ } else
+ asprintf(&timeout_str, "%.2d:%.2d:%.2d", timeout_tm.tm_hour,
+ timeout_tm.tm_min, timeout_tm.tm_sec);
+
+ d_printf("Key: %s\t Timeout: %s\t Value: %s %s\n", keystr,
+ timeout_str, datastr, timeout > now_t ? "": "(expired)");
+}
+
+static void delete_cache_entry(const char* keystr, const char* datastr,
+ const time_t timeout, void* dptr)
+{
+ if (!gencache_del(keystr))
+ d_fprintf(stderr, "Couldn't delete entry! key = %s\n", keystr);
+}
+
+
+/**
+ * Parse text representation of timeout value
+ *
+ * @param timeout_str string containing text representation of the timeout
+ * @return numeric timeout of time_t type
+ **/
+static time_t parse_timeout(const char* timeout_str)
+{
+ char sign = '\0', *number = NULL, unit = '\0';
+ int len, number_begin, number_end;
+ time_t timeout;
+
+ /* sign detection */
+ if (timeout_str[0] == '!' || timeout_str[0] == '+') {
+ sign = timeout_str[0];
+ number_begin = 1;
+ } else {
+ number_begin = 0;
+ }
+
+ /* unit detection */
+ len = strlen(timeout_str);
+ switch (timeout_str[len - 1]) {
+ case 's':
+ case 'm':
+ case 'h':
+ case 'd':
+ case 'w': unit = timeout_str[len - 1];
+ }
+
+ /* number detection */
+ len = (sign) ? strlen(&timeout_str[number_begin]) : len;
+ number_end = (unit) ? len - 1 : len;
+ number = SMB_STRNDUP(&timeout_str[number_begin], number_end);
+
+ /* calculate actual timeout value */
+ timeout = (time_t)atoi(number);
+
+ switch (unit) {
+ case 'm': timeout *= 60; break;
+ case 'h': timeout *= 60*60; break;
+ case 'd': timeout *= 60*60*24; break;
+ case 'w': timeout *= 60*60*24*7; break; /* that's fair enough, I think :) */
+ }
+
+ switch (sign) {
+ case '!': timeout = time(NULL) - timeout; break;
+ case '+':
+ default: timeout += time(NULL); break;
+ }
+
+ if (number) SAFE_FREE(number);
+ return timeout;
+}
+
+
+/**
+ * Add an entry to the cache. If it does exist, then set it.
+ *
+ * @param argv key, value and timeout are passed in command line
+ * @return 0 on success, otherwise failure
+ **/
+static int net_cache_add(int argc, const char **argv)
+{
+ const char *keystr, *datastr, *timeout_str;
+ time_t timeout;
+
+ if (argc < 3) {
+ d_printf("\nUsage: net cache add <key string> <data string> <timeout>\n");
+ return -1;
+ }
+
+ keystr = argv[0];
+ datastr = argv[1];
+ timeout_str = argv[2];
+
+ /* parse timeout given in command line */
+ timeout = parse_timeout(timeout_str);
+ if (!timeout) {
+ d_fprintf(stderr, "Invalid timeout argument.\n");
+ return -1;
+ }
+
+ if (gencache_set(keystr, datastr, timeout)) {
+ d_printf("New cache entry stored successfully.\n");
+ gencache_shutdown();
+ return 0;
+ }
+
+ d_fprintf(stderr, "Entry couldn't be added. Perhaps there's already such a key.\n");
+ gencache_shutdown();
+ return -1;
+}
+
+
+/**
+ * Set new value of an existing entry in the cache. Fail If the entry doesn't
+ * exist.
+ *
+ * @param argv key being searched and new value and timeout to set in the entry
+ * @return 0 on success, otherwise failure
+ **/
+static int net_cache_set(int argc, const char **argv)
+{
+ const char *keystr, *datastr, *timeout_str;
+ time_t timeout;
+
+ if (argc < 3) {
+ d_printf("\nUsage: net cache set <key string> <data string> <timeout>\n");
+ return -1;
+ }
+
+ keystr = argv[0];
+ datastr = argv[1];
+ timeout_str = argv[2];
+
+ /* parse timeout given in command line */
+ timeout = parse_timeout(timeout_str);
+ if (!timeout) {
+ d_fprintf(stderr, "Invalid timeout argument.\n");
+ return -1;
+ }
+
+ if (gencache_set_only(keystr, datastr, timeout)) {
+ d_printf("Cache entry set successfully.\n");
+ gencache_shutdown();
+ return 0;
+ }
+
+ d_fprintf(stderr, "Entry couldn't be set. Perhaps there's no such a key.\n");
+ gencache_shutdown();
+ return -1;
+}
+
+
+/**
+ * Delete an entry in the cache
+ *
+ * @param argv key to delete an entry of
+ * @return 0 on success, otherwise failure
+ **/
+static int net_cache_del(int argc, const char **argv)
+{
+ const char *keystr = argv[0];
+
+ if (argc < 1) {
+ d_printf("\nUsage: net cache del <key string>\n");
+ return -1;
+ }
+
+ if(gencache_del(keystr)) {
+ d_printf("Entry deleted.\n");
+ return 0;
+ }
+
+ d_fprintf(stderr, "Couldn't delete specified entry\n");
+ return -1;
+}
+
+
+/**
+ * Get and display an entry from the cache
+ *
+ * @param argv key to search an entry of
+ * @return 0 on success, otherwise failure
+ **/
+static int net_cache_get(int argc, const char **argv)
+{
+ const char* keystr = argv[0];
+ char* valuestr;
+ time_t timeout;
+
+ if (argc < 1) {
+ d_printf("\nUsage: net cache get <key>\n");
+ return -1;
+ }
+
+ if (gencache_get(keystr, &valuestr, &timeout)) {
+ print_cache_entry(keystr, valuestr, timeout, NULL);
+ return 0;
+ }
+
+ d_fprintf(stderr, "Failed to find entry\n");
+ return -1;
+}
+
+
+/**
+ * Search an entry/entries in the cache
+ *
+ * @param argv key pattern to match the entries to
+ * @return 0 on success, otherwise failure
+ **/
+static int net_cache_search(int argc, const char **argv)
+{
+ const char* pattern;
+
+ if (argc < 1) {
+ d_printf("Usage: net cache search <pattern>\n");
+ return -1;
+ }
+
+ pattern = argv[0];
+ gencache_iterate(print_cache_entry, NULL, pattern);
+ return 0;
+}
+
+
+/**
+ * List the contents of the cache
+ *
+ * @param argv ignored in this functionailty
+ * @return always returns 0
+ **/
+static int net_cache_list(int argc, const char **argv)
+{
+ const char* pattern = "*";
+ gencache_iterate(print_cache_entry, NULL, pattern);
+ gencache_shutdown();
+ return 0;
+}
+
+
+/**
+ * Flush the whole cache
+ *
+ * @param argv ignored in this functionality
+ * @return always returns 0
+ **/
+static int net_cache_flush(int argc, const char **argv)
+{
+ const char* pattern = "*";
+ gencache_iterate(delete_cache_entry, NULL, pattern);
+ gencache_shutdown();
+ return 0;
+}
+
+
+/**
+ * Short help
+ *
+ * @param argv ignored in this functionality
+ * @return always returns -1
+ **/
+static int net_cache_usage(int argc, const char **argv)
+{
+ d_printf(" net cache add \t add add new cache entry\n");
+ d_printf(" net cache set \t set new value for existing cache entry\n");
+ d_printf(" net cache del \t delete existing cache entry by key\n");
+ d_printf(" net cache flush \t delete all entries existing in the cache\n");
+ d_printf(" net cache get \t get cache entry by key\n");
+ d_printf(" net cache search \t search for entries in the cache, by given pattern\n");
+ d_printf(" net cache list \t list all cache entries (just like search for \"*\")\n");
+ return -1;
+}
+
+
+/**
+ * Entry point to 'net cache' subfunctionality
+ *
+ * @param argv arguments passed to further called functions
+ * @return whatever further functions return
+ **/
+int net_cache(int argc, const char **argv)
+{
+ struct functable func[] = {
+ {"add", net_cache_add},
+ {"set", net_cache_set},
+ {"del", net_cache_del},
+ {"get", net_cache_get},
+ {"search", net_cache_search},
+ {"list", net_cache_list},
+ {"flush", net_cache_flush},
+ {NULL, NULL}
+ };
+
+ return net_run_function(argc, argv, func, net_cache_usage);
+}
projects / samba / blobdiff