git.m6w6.name Git - awesomized/libmemcached/blob - clients/memcat.c

   1 #include "libmemcached/common.h"
   2 #include <stdio.h>
   3 #include <inttypes.h>
   4 #include <string.h>
   5 #include <unistd.h>
   6 #include <getopt.h>
   7 #include <libmemcached/memcached.h>
   8
   9 #include "utilities.h"
  10
  11 #define PROGRAM_NAME "memcat"
  12 #define PROGRAM_DESCRIPTION "Cat a set of key values to stdout."
  13
  14
  15 /* Prototypes */
  16 void options_parse(int argc, char *argv[]);
  17
  18 static int opt_binary= 0;
  19 static int opt_verbose= 0;
  20 static int opt_displayflag= 0;
  21 static char *opt_servers= NULL;
  22 static char *opt_hash= NULL;
  23
  24 int main(int argc, char *argv[])
  25 {
  26   memcached_st *memc;
  27   char *string;
  28   size_t string_length;
  29   uint32_t flags;
  30   memcached_return rc;
  31   memcached_server_st *servers;
  32
  33   options_parse(argc, argv);
  34
  35   if (!opt_servers)
  36   {
  37     char *temp;
  38
  39     if ((temp= getenv("MEMCACHED_SERVERS")))
  40       opt_servers= strdup(temp);
  41     else
  42     {
  43       fprintf(stderr, "No Servers provided\n");
  44       exit(1);
  45     }
  46   }
  47
  48   memc= memcached_create(NULL);
  49   process_hash_option(memc, opt_hash);
  50
  51   servers= memcached_servers_parse(opt_servers);
  52
  53   memcached_server_push(memc, servers);
  54   memcached_server_list_free(servers);
  55   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL, opt_binary);
  56
  57   while (optind < argc)
  58   {
  59     string= memcached_get(memc, argv[optind], strlen(argv[optind]),
  60                           &string_length, &flags, &rc);
  61     if (rc == MEMCACHED_SUCCESS)
  62     {
  63       if (opt_displayflag)
  64       {
  65         if (opt_verbose)
  66           printf("key: %s\nflags: ", argv[optind]);
  67         printf("%x\n", flags);
  68       }
  69       else
  70       {
  71         if (opt_verbose)
  72           printf("key: %s\nflags: %x\nlength: %zu\nvalue: ",
  73                  argv[optind], flags, string_length);
  74         printf("%.*s\n", (int)string_length, string);
  75         free(string);
  76       }
  77     }
  78     else if (rc != MEMCACHED_NOTFOUND)
  79     {
  80       fprintf(stderr, "memcat: %s: memcache error %s",
  81               argv[optind], memcached_strerror(memc, rc));
  82       if (memc->cached_errno)
  83         fprintf(stderr, " system error %s", strerror(memc->cached_errno));
  84       fprintf(stderr, "\n");
  85     }
  86     optind++;
  87   }
  88
  89   memcached_free(memc);
  90
  91   if (opt_servers)
  92     free(opt_servers);
  93   if (opt_hash)
  94     free(opt_hash);
  95
  96   return 0;
  97 }
  98
  99
 100 void options_parse(int argc, char *argv[])
 101 {
 102   int option_index= 0;
 103   int option_rv;
 104
 105   memcached_programs_help_st help_options[]=
 106   {
 107     {0},
 108   };
 109
 110   static struct option long_options[]=
 111     {
 112       {"version", no_argument, NULL, OPT_VERSION},
 113       {"help", no_argument, NULL, OPT_HELP},
 114       {"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 115       {"debug", no_argument, &opt_verbose, OPT_DEBUG},
 116       {"servers", required_argument, NULL, OPT_SERVERS},
 117       {"flag", no_argument, &opt_displayflag, OPT_FLAG},
 118       {"hash", required_argument, NULL, OPT_HASH},
 119       {"binary", no_argument, NULL, OPT_BINARY},
 120       {0, 0, 0, 0},
 121     };
 122
 123   while (1)
 124   {
 125     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 126     if (option_rv == -1) break;
 127     switch (option_rv)
 128     {
 129     case 0:
 130       break;
 131     case OPT_BINARY:
 132       opt_binary = 1;
 133       break;
 134     case OPT_VERBOSE: /* --verbose or -v */
 135       opt_verbose = OPT_VERBOSE;
 136       break;
 137     case OPT_DEBUG: /* --debug or -d */
 138       opt_verbose = OPT_DEBUG;
 139       break;
 140     case OPT_VERSION: /* --version or -V */
 141       version_command(PROGRAM_NAME);
 142       break;
 143     case OPT_HELP: /* --help or -h */
 144       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 145       break;
 146     case OPT_SERVERS: /* --servers or -s */
 147       opt_servers= strdup(optarg);
 148       break;
 149     case OPT_HASH:
 150       opt_hash= strdup(optarg);
 151       break;
 152     case '?':
 153       /* getopt_long already printed an error message. */
 154       exit(1);
 155     default:
 156       abort();
 157     }
 158   }
 159 }