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

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