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 "config.h"
  13
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <inttypes.h>
  17 #include <unistd.h>
  18 #include <getopt.h>
  19 #include <sys/types.h>
  20 #include <sys/stat.h>
  21 #include <sys/types.h>
  22 #include <fcntl.h>
  23 #include <errno.h>
  24 #include <strings.h>
  25 #include <string.h>
  26
  27 #include <libmemcached/memcached.h>
  28
  29 #include "client_options.h"
  30 #include "utilities.h"
  31
  32 #define PROGRAM_NAME "memdump"
  33 #define PROGRAM_DESCRIPTION "Dump all values from one or many servers."
  34
  35 /* Prototypes */
  36 static void options_parse(int argc, char *argv[]);
  37
  38 static int opt_binary=0;
  39 static int opt_verbose= 0;
  40 static char *opt_servers= NULL;
  41 static char *opt_hash= NULL;
  42 static char *opt_username;
  43 static char *opt_passwd;
  44
  45 /* Print the keys and counter how many were found */
  46 static memcached_return_t key_printer(const memcached_st *ptr __attribute__((unused)),
  47                                       const char *key, size_t key_length,
  48                                       void *context __attribute__((unused)))
  49 {
  50   printf("%.*s\n", (uint32_t)key_length, key);
  51
  52   return MEMCACHED_SUCCESS;
  53 }
  54
  55 int main(int argc, char *argv[])
  56 {
  57   memcached_st *memc;
  58   memcached_return_t rc;
  59   memcached_server_st *servers;
  60   memcached_dump_fn callbacks[1];
  61
  62   callbacks[0]= &key_printer;
  63
  64   options_parse(argc, argv);
  65
  66   memc= memcached_create(NULL);
  67   process_hash_option(memc, opt_hash);
  68
  69   if (!opt_servers)
  70   {
  71     char *temp;
  72
  73     if ((temp= getenv("MEMCACHED_SERVERS")))
  74       opt_servers= strdup(temp);
  75     else
  76     {
  77       fprintf(stderr, "No Servers provided\n");
  78       exit(1);
  79     }
  80   }
  81
  82   if (opt_servers)
  83     servers= memcached_servers_parse(opt_servers);
  84   else
  85     servers= memcached_servers_parse(argv[--argc]);
  86
  87   memcached_server_push(memc, servers);
  88   memcached_server_list_free(servers);
  89   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
  90                          (uint64_t)opt_binary);
  91   if (!initialize_sasl(memc, opt_username, opt_passwd))
  92   {
  93     memcached_free(memc);
  94     return 1;
  95   }
  96
  97   rc= memcached_dump(memc, callbacks, NULL, 1);
  98
  99   if (rc != MEMCACHED_SUCCESS)
 100   {
 101     fprintf(stderr, "memdump: memcache error %s", memcached_strerror(memc, rc));
 102     if (memc->cached_errno)
 103       fprintf(stderr, " system error %s", strerror(memc->cached_errno));
 104     fprintf(stderr, "\n");
 105   }
 106
 107   memcached_free(memc);
 108
 109   if (opt_servers)
 110     free(opt_servers);
 111   if (opt_hash)
 112     free(opt_hash);
 113
 114   shutdown_sasl();
 115
 116   return 0;
 117 }
 118
 119 static void options_parse(int argc, char *argv[])
 120 {
 121   int option_index= 0;
 122   int option_rv;
 123
 124   static struct option long_options[]=
 125     {
 126       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 127       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 128       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 129       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 130       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 131       {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 132       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 133       {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 134       {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 135       {0, 0, 0, 0}
 136     };
 137
 138   while (1)
 139   {
 140     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 141
 142     if (option_rv == -1) break;
 143
 144     switch (option_rv)
 145     {
 146     case 0:
 147       break;
 148     case OPT_BINARY:
 149       opt_binary = 1;
 150       break;
 151     case OPT_VERBOSE: /* --verbose or -v */
 152       opt_verbose = OPT_VERBOSE;
 153       break;
 154     case OPT_DEBUG: /* --debug or -d */
 155       opt_verbose = OPT_DEBUG;
 156       break;
 157     case OPT_VERSION: /* --version or -V */
 158       version_command(PROGRAM_NAME);
 159       break;
 160     case OPT_HELP: /* --help or -h */
 161       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, NULL);
 162       break;
 163     case OPT_SERVERS: /* --servers or -s */
 164       opt_servers= strdup(optarg);
 165       break;
 166     case OPT_HASH:
 167       opt_hash= strdup(optarg);
 168       break;
 169     case OPT_USERNAME:
 170        opt_username= optarg;
 171        break;
 172     case OPT_PASSWD:
 173        opt_passwd= optarg;
 174        break;
 175     case '?':
 176       /* getopt_long already printed an error message. */
 177       exit(1);
 178     default:
 179       abort();
 180     }
 181   }
 182 }