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

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