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

   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 "libmemcached/common.h"
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #include <inttypes.h>
  16 #include <unistd.h>
  17 #include <getopt.h>
  18 #include <sys/types.h>
  19 #include <sys/stat.h>
  20 #include <sys/types.h>
  21 #include <fcntl.h>
  22 #include <errno.h>
  23 #include <strings.h>
  24 #include <string.h>
  25
  26 #include <libmemcached/memcached.h>
  27
  28 #include "client_options.h"
  29 #include "utilities.h"
  30
  31 #define PROGRAM_NAME "memcp"
  32 #define PROGRAM_DESCRIPTION "Copy a set of files to a memcached cluster."
  33
  34 /* Prototypes */
  35 static void options_parse(int argc, char *argv[]);
  36
  37 static int opt_binary=0;
  38 static int opt_verbose= 0;
  39 static char *opt_servers= NULL;
  40 static char *opt_hash= NULL;
  41 static int opt_method= OPT_SET;
  42 static uint32_t opt_flags= 0;
  43 static time_t opt_expires= 0;
  44
  45 static long strtol_wrapper(const char *nptr, int base, bool *error)
  46 {
  47   long val;
  48   char *endptr;
  49
  50   errno= 0;    /* To distinguish success/failure after call */
  51   val= strtol(nptr, &endptr, base);
  52
  53   /* Check for various possible errors */
  54
  55   if ((errno == ERANGE && (val == LONG_MAX || val == LONG_MIN))
  56       || (errno != 0 && val == 0))
  57   {
  58     *error= true;
  59     return 0;
  60   }
  61
  62   if (endptr == nptr)
  63   {
  64     *error= true;
  65     return 0;
  66   }
  67
  68   *error= false;
  69   return val;
  70 }
  71
  72 int main(int argc, char *argv[])
  73 {
  74   memcached_st *memc;
  75   memcached_return_t rc;
  76   memcached_server_st *servers;
  77
  78   options_parse(argc, argv);
  79
  80   memc= memcached_create(NULL);
  81   process_hash_option(memc, opt_hash);
  82
  83   if (!opt_servers)
  84   {
  85     char *temp;
  86
  87     if ((temp= getenv("MEMCACHED_SERVERS")))
  88     {
  89       opt_servers= strdup(temp);
  90     }
  91     else
  92     {
  93       fprintf(stderr, "No Servers provided\n");
  94       exit(1);
  95     }
  96   }
  97
  98   if (opt_servers)
  99     servers= memcached_servers_parse(opt_servers);
 100   else
 101     servers= memcached_servers_parse(argv[--argc]);
 102
 103   memcached_server_push(memc, servers);
 104   memcached_server_list_free(servers);
 105   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
 106                          (uint64_t)opt_binary);
 107
 108   while (optind < argc)
 109   {
 110     struct stat sbuf;
 111     int fd;
 112     char *ptr;
 113     ssize_t read_length;
 114     char *file_buffer_ptr;
 115
 116     fd= open(argv[optind], O_RDONLY);
 117     if (fd < 0)
 118     {
 119       fprintf(stderr, "memcp: %s: %s\n", argv[optind], strerror(errno));
 120       optind++;
 121       continue;
 122     }
 123
 124     (void)fstat(fd, &sbuf);
 125
 126     ptr= rindex(argv[optind], '/');
 127     if (ptr)
 128       ptr++;
 129     else
 130       ptr= argv[optind];
 131
 132     if (opt_verbose)
 133     {
 134       static const char *opstr[] = { "set", "add", "replace" };
 135       printf("op: %s\nsource file: %s\nlength: %zu\n"
 136              "key: %s\nflags: %x\nexpires: %llu\n",
 137              opstr[opt_method - OPT_SET], argv[optind], (size_t)sbuf.st_size,
 138              ptr, opt_flags, (unsigned long long)opt_expires);
 139     }
 140
 141     if ((file_buffer_ptr= (char *)malloc(sizeof(char) * (size_t)sbuf.st_size)) == NULL)
 142     {
 143       fprintf(stderr, "malloc: %s\n", strerror(errno));
 144       exit(1);
 145     }
 146
 147     if ((read_length= read(fd, file_buffer_ptr, (size_t)sbuf.st_size)) == -1)
 148     {
 149       fprintf(stderr, "read: %s\n", strerror(errno));
 150       exit(1);
 151     }
 152
 153     if (read_length != sbuf.st_size)
 154     {
 155       fprintf(stderr, "Failure reading from file\n");
 156       exit(1);
 157     }
 158
 159     if (opt_method == OPT_ADD)
 160       rc= memcached_add(memc, ptr, strlen(ptr),
 161                         file_buffer_ptr, (size_t)sbuf.st_size,
 162                         opt_expires, opt_flags);
 163     else if (opt_method == OPT_REPLACE)
 164       rc= memcached_replace(memc, ptr, strlen(ptr),
 165                             file_buffer_ptr, (size_t)sbuf.st_size,
 166                             opt_expires, opt_flags);
 167     else
 168       rc= memcached_set(memc, ptr, strlen(ptr),
 169                         file_buffer_ptr, (size_t)sbuf.st_size,
 170                         opt_expires, opt_flags);
 171
 172     if (rc != MEMCACHED_SUCCESS)
 173     {
 174       fprintf(stderr, "memcp: %s: memcache error %s",
 175               ptr, memcached_strerror(memc, rc));
 176       if (memc->cached_errno)
 177         fprintf(stderr, " system error %s", strerror(memc->cached_errno));
 178       fprintf(stderr, "\n");
 179     }
 180
 181     free(file_buffer_ptr);
 182     close(fd);
 183     optind++;
 184   }
 185
 186   memcached_free(memc);
 187
 188   if (opt_servers)
 189     free(opt_servers);
 190   if (opt_hash)
 191     free(opt_hash);
 192
 193   return 0;
 194 }
 195
 196 static void options_parse(int argc, char *argv[])
 197 {
 198   int option_index= 0;
 199   int option_rv;
 200
 201   memcached_programs_help_st help_options[]=
 202   {
 203     {0},
 204   };
 205
 206   static struct option long_options[]=
 207     {
 208       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 209       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 210       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 211       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 212       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 213       {(OPTIONSTRING)"flag", required_argument, NULL, OPT_FLAG},
 214       {(OPTIONSTRING)"expire", required_argument, NULL, OPT_EXPIRE},
 215       {(OPTIONSTRING)"set",  no_argument, NULL, OPT_SET},
 216       {(OPTIONSTRING)"add",  no_argument, NULL, OPT_ADD},
 217       {(OPTIONSTRING)"replace",  no_argument, NULL, OPT_REPLACE},
 218       {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 219       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 220       {0, 0, 0, 0},
 221     };
 222
 223   while (1)
 224   {
 225     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 226
 227     if (option_rv == -1) break;
 228
 229     switch (option_rv)
 230     {
 231     case 0:
 232       break;
 233     case OPT_BINARY:
 234       opt_binary = 1;
 235       break;
 236     case OPT_VERBOSE: /* --verbose or -v */
 237       opt_verbose = OPT_VERBOSE;
 238       break;
 239     case OPT_DEBUG: /* --debug or -d */
 240       opt_verbose = OPT_DEBUG;
 241       break;
 242     case OPT_VERSION: /* --version or -V */
 243       version_command(PROGRAM_NAME);
 244       break;
 245     case OPT_HELP: /* --help or -h */
 246       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 247       break;
 248     case OPT_SERVERS: /* --servers or -s */
 249       opt_servers= strdup(optarg);
 250       break;
 251     case OPT_FLAG: /* --flag */
 252       {
 253         bool strtol_error;
 254         opt_flags= (uint32_t)strtol_wrapper(optarg, 16, &strtol_error);
 255         if (strtol_error == true)
 256         {
 257           fprintf(stderr, "Bad value passed via --flag\n");
 258           exit(1);
 259         }
 260         break;
 261       }
 262     case OPT_EXPIRE: /* --expire */
 263       {
 264         bool strtol_error;
 265         opt_expires= (time_t)strtol_wrapper(optarg, 16, &strtol_error);
 266         if (strtol_error == true)
 267         {
 268           fprintf(stderr, "Bad value passed via --flag\n");
 269           exit(1);
 270         }
 271       }
 272     case OPT_SET:
 273       opt_method= OPT_SET;
 274       break;
 275     case OPT_REPLACE:
 276       opt_method= OPT_REPLACE;
 277       break;
 278     case OPT_ADD:
 279       opt_method= OPT_ADD;
 280       break;
 281     case OPT_HASH:
 282       opt_hash= strdup(optarg);
 283       break;
 284     case '?':
 285       /* getopt_long already printed an error message. */
 286       exit(1);
 287     default:
 288       abort();
 289     }
 290   }
 291 }