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

   1 #include <stdio.h>
   2 #include <unistd.h>
   3 #include <getopt.h>
   4 #include <memcached.h>
   5
   6 #include "client_options.h"
   7 #include "utilities.h"
   8
   9 #define PROGRAM_NAME "memcat"
  10 #define PROGRAM_DESCRIPTION "Cat a set of key values to stdout."
  11
  12
  13 /* Prototypes */
  14 void options_parse(int argc, char *argv[]);
  15
  16 static int opt_verbose= 0;
  17 static int opt_displayflag= 0;
  18 static char *opt_servers;
  19
  20 int main(int argc, char *argv[])
  21 {
  22   memcached_st *memc;
  23   char *string;
  24   size_t string_length;
  25   uint16_t flags;
  26   memcached_return rc;
  27   memcached_server_st *servers;
  28
  29   options_parse(argc, argv);
  30
  31   if (!opt_servers)
  32   {
  33     char *temp;
  34
  35     if ((temp= getenv("MEMCACHED_SERVERS")))
  36       opt_servers= strdup(temp);
  37     else
  38       exit(1);
  39   }
  40
  41   memc= memcached_create(NULL);
  42
  43   servers= memcached_servers_parse(opt_servers);
  44
  45   memcached_server_push(memc, servers);
  46   memcached_server_list_free(servers);
  47
  48   while (optind < argc)
  49   {
  50     string= memcached_get(memc, argv[optind], strlen(argv[optind]),
  51                           &string_length, &flags, &rc);
  52     if (rc == MEMCACHED_SUCCESS)
  53     {
  54       if (opt_displayflag)
  55       {
  56         if (opt_verbose)
  57           printf("key: %s\nflags: ", argv[optind]);
  58         printf("%x\n", flags);
  59       }
  60       else
  61       {
  62         if (opt_verbose)
  63           printf("key: %s\nflags: %x\nlength: %zu\nvalue: ",
  64                  argv[optind], flags, string_length);
  65         printf("%.*s\n", (int)string_length, string);
  66         free(string);
  67       }
  68     }
  69     else if (rc != MEMCACHED_NOTFOUND)
  70     {
  71       fprintf(stderr, "memcat: %s: memcache error %s\n",
  72               argv[optind], memcached_strerror(memc, rc));
  73     }
  74     optind++;
  75   }
  76
  77   memcached_free(memc);
  78
  79   free(opt_servers);
  80
  81   return 0;
  82 }
  83
  84
  85 void options_parse(int argc, char *argv[])
  86 {
  87   int option_index= 0;
  88   int option_rv;
  89
  90   memcached_programs_help_st help_options[]=
  91   {
  92     {0},
  93   };
  94
  95   static struct option long_options[]=
  96     {
  97       {"version", no_argument, NULL, OPT_VERSION},
  98       {"help", no_argument, NULL, OPT_HELP},
  99       {"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 100       {"debug", no_argument, &opt_verbose, OPT_DEBUG},
 101       {"servers", required_argument, NULL, OPT_SERVERS},
 102       {"flag", no_argument, &opt_displayflag, OPT_FLAG},
 103       {0, 0, 0, 0},
 104     };
 105
 106   while (1)
 107   {
 108     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 109     if (option_rv == -1) break;
 110     switch (option_rv)
 111     {
 112     case 0:
 113       break;
 114     case OPT_VERBOSE: /* --verbose or -v */
 115       opt_verbose = OPT_VERBOSE;
 116       break;
 117     case OPT_DEBUG: /* --debug or -d */
 118       opt_verbose = OPT_DEBUG;
 119       break;
 120     case OPT_VERSION: /* --version or -V */
 121       version_command(PROGRAM_NAME);
 122       break;
 123     case OPT_HELP: /* --help or -h */
 124       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 125       break;
 126     case OPT_SERVERS: /* --servers or -s */
 127       opt_servers= strdup(optarg);
 128       break;
 129     case '?':
 130       /* getopt_long already printed an error message. */
 131       exit(1);
 132     default:
 133       abort();
 134     }
 135   }
 136 }