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 <cerrno>
  15 #include <climits>
  16 #include <cstdio>
  17 #include <cstdlib>
  18 #include <cstdlib>
  19 #include <cstring>
  20 #include <fcntl.h>
  21 #include <getopt.h>
  22 #include <iostream>
  23 #ifdef HAVE_STRINGS_H
  24 #include <strings.h>
  25 #endif
  26 #include <sys/stat.h>
  27 #include <sys/types.h>
  28 #include <sys/types.h>
  29 #include <sys/types.h>
  30 #include <unistd.h>
  31
  32
  33 #include <libmemcached/memcached.h>
  34
  35 #include "client_options.h"
  36 #include "utilities.h"
  37
  38 #define PROGRAM_NAME "memcp"
  39 #define PROGRAM_DESCRIPTION "Copy a set of files to a memcached cluster."
  40
  41 /* Prototypes */
  42 static void options_parse(int argc, char *argv[]);
  43
  44 static bool opt_binary= false;
  45 static int opt_verbose= 0;
  46 static char *opt_servers= NULL;
  47 static char *opt_hash= NULL;
  48 static int opt_method= OPT_SET;
  49 static uint32_t opt_flags= 0;
  50 static time_t opt_expires= 0;
  51 static char *opt_username;
  52 static char *opt_passwd;
  53
  54 static long strtol_wrapper(const char *nptr, int base, bool *error)
  55 {
  56   long val;
  57   char *endptr;
  58
  59   errno= 0;    /* To distinguish success/failure after call */
  60   val= strtol(nptr, &endptr, base);
  61
  62   /* Check for various possible errors */
  63
  64   if ((errno == ERANGE && (val == LONG_MAX || val == LONG_MIN))
  65       || (errno != 0 && val == 0))
  66   {
  67     *error= true;
  68     return EXIT_SUCCESS;
  69   }
  70
  71   if (endptr == nptr)
  72   {
  73     *error= true;
  74     return EXIT_SUCCESS;
  75   }
  76
  77   *error= false;
  78   return val;
  79 }
  80
  81 int main(int argc, char *argv[])
  82 {
  83
  84   options_parse(argc, argv);
  85   initialize_sockets();
  86
  87   memcached_st *memc= memcached_create(NULL);
  88   process_hash_option(memc, opt_hash);
  89
  90   if (opt_servers == NULL)
  91   {
  92     char *temp;
  93
  94     if ((temp= getenv("MEMCACHED_SERVERS")))
  95     {
  96       opt_servers= strdup(temp);
  97     }
  98     else
  99     {
 100       std::cerr << "No Servers provided" << std::endl;
 101       exit(EXIT_FAILURE);
 102     }
 103   }
 104
 105   memcached_server_st *servers;
 106   if (opt_servers)
 107   {
 108     servers= memcached_servers_parse(opt_servers);
 109   }
 110   else
 111   {
 112     servers= memcached_servers_parse(argv[--argc]);
 113   }
 114
 115   memcached_server_push(memc, servers);
 116   memcached_server_list_free(servers);
 117   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
 118                          (uint64_t)opt_binary);
 119
 120   if (opt_username and LIBMEMCACHED_WITH_SASL_SUPPORT == 0)
 121   {
 122     memcached_free(memc);
 123     std::cerr << "--username was supplied, but binary was not built with SASL support." << std::endl;
 124     return EXIT_FAILURE;
 125   }
 126
 127   if (opt_username)
 128   {
 129     memcached_return_t ret;
 130     if (memcached_failed(ret= memcached_set_sasl_auth_data(memc, opt_username, opt_passwd)))
 131     {
 132       std::cerr << memcached_last_error_message(memc) << std::endl;
 133       memcached_free(memc);
 134       return EXIT_FAILURE;
 135     }
 136   }
 137
 138   int exit_code= EXIT_SUCCESS;
 139   while (optind < argc)
 140   {
 141     int fd= open(argv[optind], O_RDONLY);
 142     if (fd < 0)
 143     {
 144       if (opt_verbose)
 145       {
 146         fprintf(stderr, "memcp: %s: %s\n", argv[optind], strerror(errno));
 147         optind++;
 148       }
 149       exit_code= EXIT_FAILURE;
 150       continue;
 151     }
 152
 153     struct stat sbuf;
 154     (void)fstat(fd, &sbuf);
 155
 156     char *ptr= rindex(argv[optind], '/');
 157     if (ptr)
 158     {
 159       ptr++;
 160     }
 161     else
 162     {
 163       ptr= argv[optind];
 164     }
 165
 166     if (opt_verbose)
 167     {
 168       static const char *opstr[] = { "set", "add", "replace" };
 169       printf("op: %s\nsource file: %s\nlength: %lu\n"
 170              "key: %s\nflags: %x\nexpires: %lu\n",
 171              opstr[opt_method - OPT_SET], argv[optind], (unsigned long)sbuf.st_size,
 172              ptr, opt_flags, (unsigned long)opt_expires);
 173     }
 174
 175     char *file_buffer_ptr;
 176     if ((file_buffer_ptr= (char *)malloc(sizeof(char) * (size_t)sbuf.st_size)) == NULL)
 177     {
 178       fprintf(stderr, "malloc: %s\n", strerror(errno));
 179       exit(EXIT_FAILURE);
 180     }
 181
 182     ssize_t read_length;
 183     if ((read_length= read(fd, file_buffer_ptr, (size_t)sbuf.st_size)) == -1)
 184     {
 185       fprintf(stderr, "read: %s\n", strerror(errno));
 186       exit(EXIT_FAILURE);
 187     }
 188
 189     if (read_length != sbuf.st_size)
 190     {
 191       fprintf(stderr, "Failure reading from file\n");
 192       exit(1);
 193     }
 194
 195     memcached_return_t rc;
 196     if (opt_method == OPT_ADD)
 197       rc= memcached_add(memc, ptr, strlen(ptr),
 198                         file_buffer_ptr, (size_t)sbuf.st_size,
 199                         opt_expires, opt_flags);
 200     else if (opt_method == OPT_REPLACE)
 201       rc= memcached_replace(memc, ptr, strlen(ptr),
 202                             file_buffer_ptr, (size_t)sbuf.st_size,
 203                             opt_expires, opt_flags);
 204     else
 205       rc= memcached_set(memc, ptr, strlen(ptr),
 206                         file_buffer_ptr, (size_t)sbuf.st_size,
 207                         opt_expires, opt_flags);
 208
 209     if (rc != MEMCACHED_SUCCESS)
 210     {
 211       fprintf(stderr, "memcp: %s: memcache error %s",
 212               ptr, memcached_strerror(memc, rc));
 213       if (memcached_last_error_errno(memc))
 214         fprintf(stderr, " system error %s", strerror(memcached_last_error_errno(memc)));
 215       fprintf(stderr, "\n");
 216
 217       exit_code= EXIT_FAILURE;
 218     }
 219
 220     free(file_buffer_ptr);
 221     close(fd);
 222     optind++;
 223   }
 224
 225   memcached_free(memc);
 226
 227   if (opt_servers)
 228     free(opt_servers);
 229   if (opt_hash)
 230     free(opt_hash);
 231
 232   return exit_code;
 233 }
 234
 235 static void options_parse(int argc, char *argv[])
 236 {
 237   memcached_programs_help_st help_options[]=
 238   {
 239     {0},
 240   };
 241
 242   static struct option long_options[]=
 243     {
 244       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 245       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 246       {(OPTIONSTRING)"quiet", no_argument, NULL, OPT_QUIET},
 247       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 248       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 249       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 250       {(OPTIONSTRING)"flag", required_argument, NULL, OPT_FLAG},
 251       {(OPTIONSTRING)"expire", required_argument, NULL, OPT_EXPIRE},
 252       {(OPTIONSTRING)"set",  no_argument, NULL, OPT_SET},
 253       {(OPTIONSTRING)"add",  no_argument, NULL, OPT_ADD},
 254       {(OPTIONSTRING)"replace",  no_argument, NULL, OPT_REPLACE},
 255       {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 256       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 257       {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 258       {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 259       {0, 0, 0, 0},
 260     };
 261
 262   bool opt_version= false;
 263   bool opt_help= false;
 264   int option_index= 0;
 265
 266   while (1)
 267   {
 268     int option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 269
 270     if (option_rv == -1)
 271       break;
 272
 273     switch (option_rv)
 274     {
 275     case 0:
 276       break;
 277     case OPT_BINARY:
 278       opt_binary= true;
 279       break;
 280
 281     case OPT_VERBOSE: /* --verbose or -v */
 282       opt_verbose= OPT_VERBOSE;
 283       break;
 284
 285     case OPT_DEBUG: /* --debug or -d */
 286       opt_verbose= OPT_DEBUG;
 287       break;
 288
 289     case OPT_VERSION: /* --version or -V */
 290       opt_version= true;
 291       break;
 292
 293     case OPT_HELP: /* --help or -h */
 294       opt_help= true;
 295       break;
 296
 297     case OPT_SERVERS: /* --servers or -s */
 298       opt_servers= strdup(optarg);
 299       break;
 300
 301     case OPT_FLAG: /* --flag */
 302       {
 303         bool strtol_error;
 304         opt_flags= (uint32_t)strtol_wrapper(optarg, 16, &strtol_error);
 305         if (strtol_error == true)
 306         {
 307           fprintf(stderr, "Bad value passed via --flag\n");
 308           exit(1);
 309         }
 310       }
 311       break;
 312
 313     case OPT_EXPIRE: /* --expire */
 314       {
 315         bool strtol_error;
 316         opt_expires= (time_t)strtol_wrapper(optarg, 16, &strtol_error);
 317         if (strtol_error == true)
 318         {
 319           fprintf(stderr, "Bad value passed via --flag\n");
 320           exit(1);
 321         }
 322       }
 323       break;
 324
 325     case OPT_SET:
 326       opt_method= OPT_SET;
 327       break;
 328
 329     case OPT_REPLACE:
 330       opt_method= OPT_REPLACE;
 331       break;
 332
 333     case OPT_ADD:
 334       opt_method= OPT_ADD;
 335       break;
 336
 337     case OPT_HASH:
 338       opt_hash= strdup(optarg);
 339       break;
 340
 341     case OPT_USERNAME:
 342       opt_username= optarg;
 343       break;
 344
 345     case OPT_PASSWD:
 346       opt_passwd= optarg;
 347       break;
 348
 349     case OPT_QUIET:
 350       close_stdio();
 351       break;
 352
 353     case '?':
 354       /* getopt_long already printed an error message. */
 355       exit(1);
 356     default:
 357       abort();
 358     }
 359   }
 360
 361   if (opt_version)
 362   {
 363     version_command(PROGRAM_NAME);
 364     exit(EXIT_SUCCESS);
 365   }
 366
 367   if (opt_help)
 368   {
 369     help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 370     exit(EXIT_SUCCESS);
 371   }
 372 }