-/* LibMemcached
- * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
- *
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
- *
- * Summary:
- *
- */
-
+/*
+ +--------------------------------------------------------------------+
+ | libmemcached-awesome - C/C++ Client Library for memcached |
+ +--------------------------------------------------------------------+
+ | Redistribution and use in source and binary forms, with or without |
+ | modification, are permitted under the terms of the BSD license. |
+ | You should have received a copy of the license in a bundled file |
+ | named LICENSE; in case you did not receive a copy you can review |
+ | the terms online at: https://opensource.org/licenses/BSD-3-Clause |
+ +--------------------------------------------------------------------+
+ | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ |
+ | Copyright (c) 2020-2021 Michael Wallner https://awesome.co/ |
+ +--------------------------------------------------------------------+
+*/
+
+#include <fstream>
#include "mem_config.h"
-#include <cerrno>
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-#include <fcntl.h>
-#include <getopt.h>
-#include <inttypes.h>
-#include <iostream>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "libmemcached-1.0/memcached.h"
-
-#include "client_options.h"
-#include "utilities.h"
-
-#define PROGRAM_NAME "memdump"
+#define PROGRAM_NAME "memdump"
#define PROGRAM_DESCRIPTION "Dump all values from one or many servers."
+#define PROGRAM_VERSION "1.1"
-/* Prototypes */
-static void options_parse(int argc, char *argv[]);
-
-static bool opt_binary=0;
-static int opt_verbose= 0;
-static char *opt_servers= NULL;
-static char *opt_hash= NULL;
-static char *opt_username;
-static char *opt_passwd;
-
-/* Print the keys and counter how many were found */
-static memcached_return_t key_printer(const memcached_st *,
- const char *key, size_t key_length,
- void *)
-{
- std::cout.write(key, key_length);
- std::cout << std::endl;
+#include "common/options.hpp"
+#include "common/checks.hpp"
+static memcached_return_t print(const memcached_st *, const char *k, size_t l, void *ctx) {
+ auto out = static_cast<std::ostream *>(ctx);
+ out->write(k, l);
+ out->put('\n');
return MEMCACHED_SUCCESS;
}
-int main(int argc, char *argv[])
-{
- memcached_dump_fn callbacks[1];
-
- callbacks[0]= &key_printer;
-
- options_parse(argc, argv);
-
- if (opt_servers == NULL)
- {
- char *temp;
+int main(int argc, char *argv[]) {
+ client_options opt{PROGRAM_NAME, PROGRAM_VERSION, PROGRAM_DESCRIPTION};
- if ((temp= getenv("MEMCACHED_SERVERS")))
- {
- opt_servers= strdup(temp);
- }
- else if (argc > 1 and argv[--argc])
- {
- opt_servers= strdup(argv[argc]);
- }
-
- if (opt_servers == NULL)
- {
- std::cerr << "No Servers provided" << std::endl;
- exit(EXIT_FAILURE);
+ for (const auto &def : opt.defaults) {
+ switch (def.opt.val) {
+ case 'H': // no need for --hash
+ case 'b': // binary proto not available
+ break;
+ default:
+ opt.add(def);
}
}
- memcached_server_st* servers= memcached_servers_parse(opt_servers);
- if (servers == NULL or memcached_server_list_count(servers) == 0)
- {
- std::cerr << "Invalid server list provided:" << opt_servers << std::endl;
- return EXIT_FAILURE;
- }
+ opt.add("file", 'f', required_argument, "Output to file instead of standard output.");
- memcached_st *memc= memcached_create(NULL);
- if (memc == NULL)
- {
- std::cerr << "Could not allocate a memcached_st structure.\n" << std::endl;
- return EXIT_FAILURE;
- }
- process_hash_option(memc, opt_hash);
-
- memcached_server_push(memc, servers);
- memcached_server_list_free(servers);
- memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
- (uint64_t)opt_binary);
-
- if (opt_username and LIBMEMCACHED_WITH_SASL_SUPPORT == 0)
- {
- memcached_free(memc);
- std::cerr << "--username was supplied, but binary was not built with SASL support." << std::endl;
- return EXIT_FAILURE;
+ if (!opt.parse(argc, argv)) {
+ exit(EXIT_FAILURE);
}
- if (opt_username)
- {
- memcached_return_t ret;
- if (memcached_failed(ret= memcached_set_sasl_auth_data(memc, opt_username, opt_passwd)))
- {
- std::cerr << memcached_last_error_message(memc) << std::endl;
- memcached_free(memc);
- return EXIT_FAILURE;
- }
+ if (opt.isset("quiet") && !opt.isset("file")) {
+ std::cerr << "--quiet operation was requested, but --file was not set.\n";
+ exit(EXIT_FAILURE);
}
- memcached_return_t rc= memcached_dump(memc, callbacks, NULL, 1);
-
- int exit_code= EXIT_SUCCESS;
- if (memcached_failed(rc))
- {
- if (opt_verbose)
- {
- std::cerr << "Failed to dump keys: " << memcached_last_error_message(memc) << std::endl;
- }
- exit_code= EXIT_FAILURE;
+ memcached_st memc;
+ if (!check_memcached(opt, memc)) {
+ exit(EXIT_FAILURE);
}
- memcached_free(memc);
-
- if (opt_servers)
- {
- free(opt_servers);
- }
- if (opt_hash)
- {
- free(opt_hash);
+ if (!opt.apply(&memc)) {
+ exit(EXIT_FAILURE);
}
- return exit_code;
-}
+ memcached_dump_fn cb[1] = {&print};
+ std::ofstream outfile{};
+ std::ostream *outstream = check_ostream(opt, opt.argof("file"), outfile);
-static void options_parse(int argc, char *argv[])
-{
- static struct option long_options[]=
- {
- {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
- {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
- {(OPTIONSTRING)"quiet", no_argument, NULL, OPT_QUIET},
- {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
- {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
- {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
- {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
- {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
- {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
- {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
- {0, 0, 0, 0}
- };
-
- int option_index= 0;
- bool opt_version= false;
- bool opt_help= false;
- while (1)
- {
- int option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
-
- if (option_rv == -1) break;
-
- switch (option_rv)
- {
- case 0:
- break;
+ auto rc = memcached_dump(&memc, cb, outstream, 1);
- case OPT_BINARY:
- opt_binary= true;
- break;
-
- case OPT_VERBOSE: /* --verbose or -v */
- opt_verbose= OPT_VERBOSE;
- break;
-
- case OPT_DEBUG: /* --debug or -d */
- opt_verbose= OPT_DEBUG;
- break;
-
- case OPT_VERSION: /* --version or -V */
- opt_verbose= true;
- break;
-
- case OPT_HELP: /* --help or -h */
- opt_help= true;
- break;
-
- case OPT_SERVERS: /* --servers or -s */
- opt_servers= strdup(optarg);
- break;
-
- case OPT_HASH:
- opt_hash= strdup(optarg);
- break;
-
- case OPT_USERNAME:
- opt_username= optarg;
- break;
-
- case OPT_PASSWD:
- opt_passwd= optarg;
- break;
-
- case OPT_QUIET:
- close_stdio();
- break;
-
- case '?':
- /* getopt_long already printed an error message. */
- exit(1);
- default:
- abort();
+ if (outfile) {
+ if (opt.isset("debug")) {
+ std::cerr << "Flushing " << opt.argof("file") << ".\n";
}
+ outfile.flush();
}
- if (opt_version)
- {
- version_command(PROGRAM_NAME);
- exit(EXIT_SUCCESS);
+ if (MEMCACHED_SUCCESS != rc) {
+ if (!opt.isset("quiet")) {
+ std::cerr << "Failed to dump keys:" << memcached_last_error_message(&memc) << "\n";
+ }
+ memcached_free(&memc);
+ exit(EXIT_FAILURE);
}
- if (opt_help)
- {
- help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, NULL);
- exit(EXIT_SUCCESS);
- }
+ memcached_free(&memc);
+ exit(EXIT_SUCCESS);
}