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
  42 /* Print the keys and counter how many were found */
  43 static memcached_return_t key_printer(memcached_st *ptr __attribute__((unused)),
  44                                       const char *key, size_t key_length,
  45                                       void *context __attribute__((unused)))
  46 {
  47   printf("%.*s\n", (uint32_t)key_length, key);
  48
  49   return MEMCACHED_SUCCESS;
  50 }
  51
  52 int main(int argc, char *argv[])
  53 {
  54   memcached_st *memc;
  55   memcached_return_t rc;
  56   memcached_server_st *servers;
  57   memcached_dump_fn callbacks[1];
  58
  59   callbacks[0]= &key_printer;
  60
  61   options_parse(argc, argv);
  62
  63   memc= memcached_create(NULL);
  64   process_hash_option(memc, opt_hash);
  65
  66   if (!opt_servers)
  67   {
  68     char *temp;
  69
  70     if ((temp= getenv("MEMCACHED_SERVERS")))
  71       opt_servers= strdup(temp);
  72     else
  73     {
  74       fprintf(stderr, "No Servers provided\n");
  75       exit(1);
  76     }
  77   }
  78
  79   if (opt_servers)
  80     servers= memcached_servers_parse(opt_servers);
  81   else
  82     servers= memcached_servers_parse(argv[--argc]);
  83
  84   memcached_server_push(memc, servers);
  85   memcached_server_list_free(servers);
  86   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
  87                          (uint64_t)opt_binary);
  88
  89   rc= memcached_dump(memc, callbacks, NULL, 1);
  90
  91   if (rc != MEMCACHED_SUCCESS)
  92   {
  93     fprintf(stderr, "memdump: memcache error %s", memcached_strerror(memc, rc));
  94     if (memc->cached_errno)
  95       fprintf(stderr, " system error %s", strerror(memc->cached_errno));
  96     fprintf(stderr, "\n");
  97   }
  98
  99   memcached_free(memc);
 100
 101   if (opt_servers)
 102     free(opt_servers);
 103   if (opt_hash)
 104     free(opt_hash);
 105
 106   return 0;
 107 }
 108
 109 static void options_parse(int argc, char *argv[])
 110 {
 111   int option_index= 0;
 112   int option_rv;
 113
 114   static struct option long_options[]=
 115     {
 116       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 117       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 118       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 119       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 120       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 121       {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 122       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 123       {0, 0, 0, 0}
 124     };
 125
 126   while (1)
 127   {
 128     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 129
 130     if (option_rv == -1) break;
 131
 132     switch (option_rv)
 133     {
 134     case 0:
 135       break;
 136     case OPT_BINARY:
 137       opt_binary = 1;
 138       break;
 139     case OPT_VERBOSE: /* --verbose or -v */
 140       opt_verbose = OPT_VERBOSE;
 141       break;
 142     case OPT_DEBUG: /* --debug or -d */
 143       opt_verbose = OPT_DEBUG;
 144       break;
 145     case OPT_VERSION: /* --version or -V */
 146       version_command(PROGRAM_NAME);
 147       break;
 148     case OPT_HELP: /* --help or -h */
 149       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, NULL);
 150       break;
 151     case OPT_SERVERS: /* --servers or -s */
 152       opt_servers= strdup(optarg);
 153       break;
 154     case OPT_HASH:
 155       opt_hash= strdup(optarg);
 156       break;
 157     case '?':
 158       /* getopt_long already printed an error message. */
 159       exit(1);
 160     default:
 161       abort();
 162     }
 163   }
 164 }