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