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
  35 int main(int argc, char *argv[])
  36 {
  37   memcached_st *memc;
  38   char *string;
  39   size_t string_length;
  40   uint32_t flags;
  41   memcached_return_t rc;
  42   memcached_server_st *servers;
  43
  44   options_parse(argc, argv);
  45
  46   if (!opt_servers)
  47   {
  48     char *temp;
  49
  50     if ((temp= getenv("MEMCACHED_SERVERS")))
  51       opt_servers= strdup(temp);
  52     else
  53     {
  54       fprintf(stderr, "No Servers provided\n");
  55       exit(1);
  56     }
  57   }
  58
  59   memc= memcached_create(NULL);
  60   process_hash_option(memc, opt_hash);
  61
  62   servers= memcached_servers_parse(opt_servers);
  63
  64   memcached_server_push(memc, servers);
  65   memcached_server_list_free(servers);
  66   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
  67                          (uint64_t)opt_binary);
  68
  69   while (optind < argc)
  70   {
  71     string= memcached_get(memc, argv[optind], strlen(argv[optind]),
  72                           &string_length, &flags, &rc);
  73     if (rc == MEMCACHED_SUCCESS)
  74     {
  75       if (opt_displayflag)
  76       {
  77         if (opt_verbose)
  78           printf("key: %s\nflags: ", argv[optind]);
  79         printf("%x\n", flags);
  80       }
  81       else
  82       {
  83         if (opt_verbose)
  84           printf("key: %s\nflags: %x\nlength: %zu\nvalue: ",
  85                  argv[optind], flags, string_length);
  86         printf("%.*s\n", (int)string_length, string);
  87         free(string);
  88       }
  89     }
  90     else if (rc != MEMCACHED_NOTFOUND)
  91     {
  92       fprintf(stderr, "memcat: %s: memcache error %s",
  93               argv[optind], 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     optind++;
  99   }
 100
 101   memcached_free(memc);
 102
 103   if (opt_servers)
 104     free(opt_servers);
 105   if (opt_hash)
 106     free(opt_hash);
 107
 108   return 0;
 109 }
 110
 111
 112 void options_parse(int argc, char *argv[])
 113 {
 114   int option_index= 0;
 115   int option_rv;
 116
 117   memcached_programs_help_st help_options[]=
 118   {
 119     {0},
 120   };
 121
 122   static struct option long_options[]=
 123     {
 124       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 125       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 126       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 127       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 128       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 129       {(OPTIONSTRING)"flag", no_argument, &opt_displayflag, OPT_FLAG},
 130       {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 131       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 132       {0, 0, 0, 0},
 133     };
 134
 135   while (1)
 136   {
 137     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 138     if (option_rv == -1) break;
 139     switch (option_rv)
 140     {
 141     case 0:
 142       break;
 143     case OPT_BINARY:
 144       opt_binary = 1;
 145       break;
 146     case OPT_VERBOSE: /* --verbose or -v */
 147       opt_verbose = OPT_VERBOSE;
 148       break;
 149     case OPT_DEBUG: /* --debug or -d */
 150       opt_verbose = OPT_DEBUG;
 151       break;
 152     case OPT_VERSION: /* --version or -V */
 153       version_command(PROGRAM_NAME);
 154       break;
 155     case OPT_HELP: /* --help or -h */
 156       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 157       break;
 158     case OPT_SERVERS: /* --servers or -s */
 159       opt_servers= strdup(optarg);
 160       break;
 161     case OPT_HASH:
 162       opt_hash= strdup(optarg);
 163       break;
 164     case '?':
 165       /* getopt_long already printed an error message. */
 166       exit(1);
 167     default:
 168       abort();
 169     }
 170   }
 171 }