git.m6w6.name Git - m6w6/libmemcached/blob - clients/memcat.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 <inttypes.h>
  15 #include <string.h>
  16 #include <unistd.h>
  17 #include <getopt.h>
  18 #include <libmemcached/memcached.h>
  19
  20 #include "utilities.h"
  21
  22 #define PROGRAM_NAME "memcat"
  23 #define PROGRAM_DESCRIPTION "Cat a set of key values to stdout."
  24
  25
  26 /* Prototypes */
  27 void options_parse(int argc, char *argv[]);
  28
  29 static int opt_binary= 0;
  30 static int opt_verbose= 0;
  31 static int opt_displayflag= 0;
  32 static char *opt_servers= NULL;
  33 static char *opt_hash= NULL;
  34 static char *opt_username;
  35 static char *opt_passwd;
  36
  37 int main(int argc, char *argv[])
  38 {
  39   memcached_st *memc;
  40   char *string;
  41   size_t string_length;
  42   uint32_t flags;
  43   memcached_return_t rc;
  44   memcached_server_st *servers;
  45
  46   int return_code= 0;
  47
  48   options_parse(argc, argv);
  49
  50   if (!opt_servers)
  51   {
  52     char *temp;
  53
  54     if ((temp= getenv("MEMCACHED_SERVERS")))
  55       opt_servers= strdup(temp);
  56     else
  57     {
  58       fprintf(stderr, "No Servers provided\n");
  59       exit(1);
  60     }
  61   }
  62
  63   memc= memcached_create(NULL);
  64   process_hash_option(memc, opt_hash);
  65
  66   servers= memcached_servers_parse(opt_servers);
  67
  68   memcached_server_push(memc, servers);
  69   memcached_server_list_free(servers);
  70   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
  71                          (uint64_t)opt_binary);
  72
  73   if (!initialize_sasl(memc, opt_username, opt_passwd))
  74   {
  75     memcached_free(memc);
  76     return 1;
  77   }
  78
  79   while (optind < argc)
  80   {
  81     string= memcached_get(memc, argv[optind], strlen(argv[optind]),
  82                           &string_length, &flags, &rc);
  83     if (rc == MEMCACHED_SUCCESS)
  84     {
  85       if (opt_displayflag)
  86       {
  87         if (opt_verbose)
  88           printf("key: %s\nflags: ", argv[optind]);
  89         printf("%x\n", flags);
  90       }
  91       else
  92       {
  93         if (opt_verbose)
  94           printf("key: %s\nflags: %x\nlength: %zu\nvalue: ",
  95                  argv[optind], flags, string_length);
  96         printf("%.*s\n", (int)string_length, string);
  97         free(string);
  98       }
  99     }
 100     else if (rc != MEMCACHED_NOTFOUND)
 101     {
 102       fprintf(stderr, "memcat: %s: memcache error %s",
 103               argv[optind], memcached_strerror(memc, rc));
 104       if (memc->cached_errno)
 105         fprintf(stderr, " system error %s", strerror(memc->cached_errno));
 106       fprintf(stderr, "\n");
 107
 108       return_code= -1;
 109       break;
 110     }
 111     else // Unknown Issue
 112     {
 113       fprintf(stderr, "memcat: %s not found\n", argv[optind]);
 114       return_code= -1;
 115     }
 116     optind++;
 117   }
 118
 119   memcached_free(memc);
 120
 121   if (opt_servers)
 122     free(opt_servers);
 123   if (opt_hash)
 124     free(opt_hash);
 125
 126   shutdown_sasl();
 127
 128   return return_code;
 129 }
 130
 131
 132 void options_parse(int argc, char *argv[])
 133 {
 134   int option_index= 0;
 135   int option_rv;
 136
 137   memcached_programs_help_st help_options[]=
 138   {
 139     {0},
 140   };
 141
 142   static struct option long_options[]=
 143     {
 144       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 145       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 146       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 147       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 148       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 149       {(OPTIONSTRING)"flag", no_argument, &opt_displayflag, OPT_FLAG},
 150       {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 151       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 152       {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 153       {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 154       {0, 0, 0, 0},
 155     };
 156
 157   while (1)
 158   {
 159     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 160     if (option_rv == -1) break;
 161     switch (option_rv)
 162     {
 163     case 0:
 164       break;
 165     case OPT_BINARY:
 166       opt_binary = 1;
 167       break;
 168     case OPT_VERBOSE: /* --verbose or -v */
 169       opt_verbose = OPT_VERBOSE;
 170       break;
 171     case OPT_DEBUG: /* --debug or -d */
 172       opt_verbose = OPT_DEBUG;
 173       break;
 174     case OPT_VERSION: /* --version or -V */
 175       version_command(PROGRAM_NAME);
 176       break;
 177     case OPT_HELP: /* --help or -h */
 178       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 179       break;
 180     case OPT_SERVERS: /* --servers or -s */
 181       opt_servers= strdup(optarg);
 182       break;
 183     case OPT_HASH:
 184       opt_hash= strdup(optarg);
 185       break;
 186     case OPT_USERNAME:
 187       opt_username= optarg;
 188       break;
 189     case OPT_PASSWD:
 190       opt_passwd= optarg;
 191       break;
 192     case '?':
 193       /* getopt_long already printed an error message. */
 194       exit(1);
 195     default:
 196       abort();
 197     }
 198   }
 199 }