git.m6w6.name Git - awesomized/libmemcached/blob - clients/memcp.cc

   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 "config.h"
  13
  14 #include <iostream>
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17 #include <inttypes.h>
  18 #include <unistd.h>
  19 #include <getopt.h>
  20 #include <sys/types.h>
  21 #include <sys/stat.h>
  22 #include <sys/types.h>
  23 #include <fcntl.h>
  24 #include <errno.h>
  25 #include <strings.h>
  26 #include <string.h>
  27 #include <sys/types.h>
  28 #include <stdlib.h>
  29 #include <limits.h>
  30
  31
  32 #include <libmemcached/memcached.h>
  33
  34 #include "client_options.h"
  35 #include "utilities.h"
  36
  37 #define PROGRAM_NAME "memcp"
  38 #define PROGRAM_DESCRIPTION "Copy a set of files to a memcached cluster."
  39
  40 /* Prototypes */
  41 static void options_parse(int argc, char *argv[]);
  42
  43 static int opt_binary=0;
  44 static int opt_verbose= 0;
  45 static char *opt_servers= NULL;
  46 static char *opt_hash= NULL;
  47 static int opt_method= OPT_SET;
  48 static uint32_t opt_flags= 0;
  49 static time_t opt_expires= 0;
  50 static char *opt_username;
  51 static char *opt_passwd;
  52
  53 static long strtol_wrapper(const char *nptr, int base, bool *error)
  54 {
  55   long val;
  56   char *endptr;
  57
  58   errno= 0;    /* To distinguish success/failure after call */
  59   val= strtol(nptr, &endptr, base);
  60
  61   /* Check for various possible errors */
  62
  63   if ((errno == ERANGE && (val == LONG_MAX || val == LONG_MIN))
  64       || (errno != 0 && val == 0))
  65   {
  66     *error= true;
  67     return EXIT_SUCCESS;
  68   }
  69
  70   if (endptr == nptr)
  71   {
  72     *error= true;
  73     return EXIT_SUCCESS;
  74   }
  75
  76   *error= false;
  77   return val;
  78 }
  79
  80 int main(int argc, char *argv[])
  81 {
  82   memcached_st *memc;
  83   memcached_return_t rc;
  84   memcached_server_st *servers;
  85
  86   int return_code= 0;
  87
  88   options_parse(argc, argv);
  89   initialize_sockets();
  90
  91   memc= memcached_create(NULL);
  92   process_hash_option(memc, opt_hash);
  93
  94   if (!opt_servers)
  95   {
  96     char *temp;
  97
  98     if ((temp= getenv("MEMCACHED_SERVERS")))
  99     {
 100       opt_servers= strdup(temp);
 101     }
 102     else
 103     {
 104       fprintf(stderr, "No Servers provided\n");
 105       exit(1);
 106     }
 107   }
 108
 109   if (opt_servers)
 110     servers= memcached_servers_parse(opt_servers);
 111   else
 112     servers= memcached_servers_parse(argv[--argc]);
 113
 114   memcached_server_push(memc, servers);
 115   memcached_server_list_free(servers);
 116   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
 117                          (uint64_t)opt_binary);
 118
 119   if (opt_username and LIBMEMCACHED_WITH_SASL_SUPPORT == 0)
 120   {
 121     memcached_free(memc);
 122     std::cerr << "--username was supplied, but binary was not built with SASL support." << std::endl;
 123     return EXIT_FAILURE;
 124   }
 125
 126   if (opt_username)
 127   {
 128     memcached_return_t ret;
 129     if (memcached_failed(ret= memcached_set_sasl_auth_data(memc, opt_username, opt_passwd)))
 130     {
 131       std::cerr << memcached_last_error_message(memc) << std::endl;
 132       memcached_free(memc);
 133       return EXIT_FAILURE;
 134     }
 135   }
 136
 137   while (optind < argc)
 138   {
 139     struct stat sbuf;
 140     int fd;
 141     char *ptr;
 142     ssize_t read_length;
 143     char *file_buffer_ptr;
 144
 145     fd= open(argv[optind], O_RDONLY);
 146     if (fd < 0)
 147     {
 148       fprintf(stderr, "memcp: %s: %s\n", argv[optind], strerror(errno));
 149       optind++;
 150       continue;
 151     }
 152
 153     (void)fstat(fd, &sbuf);
 154
 155     ptr= rindex(argv[optind], '/');
 156     if (ptr)
 157       ptr++;
 158     else
 159       ptr= argv[optind];
 160
 161     if (opt_verbose)
 162     {
 163       static const char *opstr[] = { "set", "add", "replace" };
 164       printf("op: %s\nsource file: %s\nlength: %lu\n"
 165              "key: %s\nflags: %x\nexpires: %lu\n",
 166              opstr[opt_method - OPT_SET], argv[optind], (unsigned long)sbuf.st_size,
 167              ptr, opt_flags, (unsigned long)opt_expires);
 168     }
 169
 170     if ((file_buffer_ptr= (char *)malloc(sizeof(char) * (size_t)sbuf.st_size)) == NULL)
 171     {
 172       fprintf(stderr, "malloc: %s\n", strerror(errno));
 173       exit(1);
 174     }
 175
 176     if ((read_length= read(fd, file_buffer_ptr, (size_t)sbuf.st_size)) == -1)
 177     {
 178       fprintf(stderr, "read: %s\n", strerror(errno));
 179       exit(1);
 180     }
 181
 182     if (read_length != sbuf.st_size)
 183     {
 184       fprintf(stderr, "Failure reading from file\n");
 185       exit(1);
 186     }
 187
 188     if (opt_method == OPT_ADD)
 189       rc= memcached_add(memc, ptr, strlen(ptr),
 190                         file_buffer_ptr, (size_t)sbuf.st_size,
 191                         opt_expires, opt_flags);
 192     else if (opt_method == OPT_REPLACE)
 193       rc= memcached_replace(memc, ptr, strlen(ptr),
 194                             file_buffer_ptr, (size_t)sbuf.st_size,
 195                             opt_expires, opt_flags);
 196     else
 197       rc= memcached_set(memc, ptr, strlen(ptr),
 198                         file_buffer_ptr, (size_t)sbuf.st_size,
 199                         opt_expires, opt_flags);
 200
 201     if (rc != MEMCACHED_SUCCESS)
 202     {
 203       fprintf(stderr, "memcp: %s: memcache error %s",
 204               ptr, memcached_strerror(memc, rc));
 205       if (memcached_last_error_errno(memc))
 206         fprintf(stderr, " system error %s", strerror(memcached_last_error_errno(memc)));
 207       fprintf(stderr, "\n");
 208
 209       return_code= -1;
 210     }
 211
 212     free(file_buffer_ptr);
 213     close(fd);
 214     optind++;
 215   }
 216
 217   memcached_free(memc);
 218
 219   if (opt_servers)
 220     free(opt_servers);
 221   if (opt_hash)
 222     free(opt_hash);
 223
 224   return return_code;
 225 }
 226
 227 static void options_parse(int argc, char *argv[])
 228 {
 229   int option_index= 0;
 230   int option_rv;
 231
 232   memcached_programs_help_st help_options[]=
 233   {
 234     {0},
 235   };
 236
 237   static struct option long_options[]=
 238     {
 239       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 240       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 241       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 242       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 243       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 244       {(OPTIONSTRING)"flag", required_argument, NULL, OPT_FLAG},
 245       {(OPTIONSTRING)"expire", required_argument, NULL, OPT_EXPIRE},
 246       {(OPTIONSTRING)"set",  no_argument, NULL, OPT_SET},
 247       {(OPTIONSTRING)"add",  no_argument, NULL, OPT_ADD},
 248       {(OPTIONSTRING)"replace",  no_argument, NULL, OPT_REPLACE},
 249       {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 250       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 251       {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 252       {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 253       {0, 0, 0, 0},
 254     };
 255
 256   while (1)
 257   {
 258     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 259
 260     if (option_rv == -1) break;
 261
 262     switch (option_rv)
 263     {
 264     case 0:
 265       break;
 266     case OPT_BINARY:
 267       opt_binary = 1;
 268       break;
 269     case OPT_VERBOSE: /* --verbose or -v */
 270       opt_verbose = OPT_VERBOSE;
 271       break;
 272     case OPT_DEBUG: /* --debug or -d */
 273       opt_verbose = OPT_DEBUG;
 274       break;
 275     case OPT_VERSION: /* --version or -V */
 276       version_command(PROGRAM_NAME);
 277       break;
 278     case OPT_HELP: /* --help or -h */
 279       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 280       break;
 281     case OPT_SERVERS: /* --servers or -s */
 282       opt_servers= strdup(optarg);
 283       break;
 284     case OPT_FLAG: /* --flag */
 285       {
 286         bool strtol_error;
 287         opt_flags= (uint32_t)strtol_wrapper(optarg, 16, &strtol_error);
 288         if (strtol_error == true)
 289         {
 290           fprintf(stderr, "Bad value passed via --flag\n");
 291           exit(1);
 292         }
 293         break;
 294       }
 295     case OPT_EXPIRE: /* --expire */
 296       {
 297         bool strtol_error;
 298         opt_expires= (time_t)strtol_wrapper(optarg, 16, &strtol_error);
 299         if (strtol_error == true)
 300         {
 301           fprintf(stderr, "Bad value passed via --flag\n");
 302           exit(1);
 303         }
 304       }
 305     case OPT_SET:
 306       opt_method= OPT_SET;
 307       break;
 308     case OPT_REPLACE:
 309       opt_method= OPT_REPLACE;
 310       break;
 311     case OPT_ADD:
 312       opt_method= OPT_ADD;
 313       break;
 314     case OPT_HASH:
 315       opt_hash= strdup(optarg);
 316       break;
 317     case OPT_USERNAME:
 318       opt_username= optarg;
 319       break;
 320     case OPT_PASSWD:
 321       opt_passwd= optarg;
 322       break;
 323    case '?':
 324       /* getopt_long already printed an error message. */
 325       exit(1);
 326     default:
 327       abort();
 328     }
 329   }
 330 }