git.m6w6.name Git - m6w6/libmemcached/blob - clients/memdump.c

   1 /* LibMemcached
   2  * Copyright (C) 2006-2009 Brian Aker
   3  * All rights reserved.
   4  *
   5  * Use and distribution licensed under the BSD license.  See
   6  * the COPYING file in the parent directory for full text.
   7  *
   8  * Summary:
   9  *
  10  */
  11
  12 #include "libmemcached/common.h"
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #include <inttypes.h>
  16 #include <unistd.h>
  17 #include <getopt.h>
  18 #include <sys/types.h>
  19 #include <sys/stat.h>
  20 #include <sys/types.h>
  21 #include <fcntl.h>
  22 #include <errno.h>
  23 #include <strings.h>
  24 #include <string.h>
  25
  26 #include <libmemcached/memcached.h>
  27
  28 #include "client_options.h"
  29 #include "utilities.h"
  30
  31 #define PROGRAM_NAME "memdump"
  32 #define PROGRAM_DESCRIPTION "Dump all values from one or many servers."
  33
  34 /* Prototypes */
  35 static void options_parse(int argc, char *argv[]);
  36
  37 static int opt_binary=0;
  38 static int opt_verbose= 0;
  39 static char *opt_servers= NULL;
  40 static char *opt_hash= NULL;
  41 static char *opt_username;
  42 static char *opt_passwd;
  43
  44 /* Print the keys and counter how many were found */
  45 static memcached_return_t key_printer(const memcached_st *ptr __attribute__((unused)),
  46                                       const char *key, size_t key_length,
  47                                       void *context __attribute__((unused)))
  48 {
  49   printf("%.*s\n", (uint32_t)key_length, key);
  50
  51   return MEMCACHED_SUCCESS;
  52 }
  53
  54 int main(int argc, char *argv[])
  55 {
  56   memcached_st *memc;
  57   memcached_return_t rc;
  58   memcached_server_st *servers;
  59   memcached_dump_fn callbacks[1];
  60
  61   callbacks[0]= &key_printer;
  62
  63   options_parse(argc, argv);
  64
  65   memc= memcached_create(NULL);
  66   process_hash_option(memc, opt_hash);
  67
  68   if (!opt_servers)
  69   {
  70     char *temp;
  71
  72     if ((temp= getenv("MEMCACHED_SERVERS")))
  73       opt_servers= strdup(temp);
  74     else
  75     {
  76       fprintf(stderr, "No Servers provided\n");
  77       exit(1);
  78     }
  79   }
  80
  81   if (opt_servers)
  82     servers= memcached_servers_parse(opt_servers);
  83   else
  84     servers= memcached_servers_parse(argv[--argc]);
  85
  86   memcached_server_push(memc, servers);
  87   memcached_server_list_free(servers);
  88   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
  89                          (uint64_t)opt_binary);
  90   if (!initialize_sasl(memc, opt_username, opt_passwd))
  91   {
  92     memcached_free(memc);
  93     return 1;
  94   }
  95
  96   rc= memcached_dump(memc, callbacks, NULL, 1);
  97
  98   if (rc != MEMCACHED_SUCCESS)
  99   {
 100     fprintf(stderr, "memdump: memcache error %s", memcached_strerror(memc, rc));
 101     if (memc->cached_errno)
 102       fprintf(stderr, " system error %s", strerror(memc->cached_errno));
 103     fprintf(stderr, "\n");
 104   }
 105
 106   memcached_free(memc);
 107
 108   if (opt_servers)
 109     free(opt_servers);
 110   if (opt_hash)
 111     free(opt_hash);
 112
 113   shutdown_sasl();
 114
 115   return 0;
 116 }
 117
 118 static void options_parse(int argc, char *argv[])
 119 {
 120   int option_index= 0;
 121   int option_rv;
 122
 123   static struct option long_options[]=
 124     {
 125       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 126       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 127       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 128       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 129       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 130       {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 131       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 132       {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 133       {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 134       {0, 0, 0, 0}
 135     };
 136
 137   while (1)
 138   {
 139     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 140
 141     if (option_rv == -1) break;
 142
 143     switch (option_rv)
 144     {
 145     case 0:
 146       break;
 147     case OPT_BINARY:
 148       opt_binary = 1;
 149       break;
 150     case OPT_VERBOSE: /* --verbose or -v */
 151       opt_verbose = OPT_VERBOSE;
 152       break;
 153     case OPT_DEBUG: /* --debug or -d */
 154       opt_verbose = OPT_DEBUG;
 155       break;
 156     case OPT_VERSION: /* --version or -V */
 157       version_command(PROGRAM_NAME);
 158       break;
 159     case OPT_HELP: /* --help or -h */
 160       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, NULL);
 161       break;
 162     case OPT_SERVERS: /* --servers or -s */
 163       opt_servers= strdup(optarg);
 164       break;
 165     case OPT_HASH:
 166       opt_hash= strdup(optarg);
 167       break;
 168     case OPT_USERNAME:
 169        opt_username= optarg;
 170        break;
 171     case OPT_PASSWD:
 172        opt_passwd= optarg;
 173        break;
 174     case '?':
 175       /* getopt_long already printed an error message. */
 176       exit(1);
 177     default:
 178       abort();
 179     }
 180   }
 181 }