git.m6w6.name Git - m6w6/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       opt_servers= strdup(temp);
  89     else
  90     {
  91       fprintf(stderr, "No Servers provided\n");
  92       exit(1);
  93     }
  94   }
  95
  96   if (opt_servers)
  97     servers= memcached_servers_parse(opt_servers);
  98   else
  99     servers= memcached_servers_parse(argv[--argc]);
 100
 101   memcached_server_push(memc, servers);
 102   memcached_server_list_free(servers);
 103   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
 104                          (uint64_t)opt_binary);
 105
 106   while (optind < argc)
 107   {
 108     struct stat sbuf;
 109     int fd;
 110     char *ptr;
 111     ssize_t read_length;
 112     char *file_buffer_ptr;
 113
 114     fd= open(argv[optind], O_RDONLY);
 115     if (fd < 0)
 116     {
 117       fprintf(stderr, "memcp: %s: %s\n", argv[optind], strerror(errno));
 118       optind++;
 119       continue;
 120     }
 121
 122     (void)fstat(fd, &sbuf);
 123
 124     ptr= rindex(argv[optind], '/');
 125     if (ptr)
 126       ptr++;
 127     else
 128       ptr= argv[optind];
 129
 130     if (opt_verbose)
 131     {
 132       static const char *opstr[] = { "set", "add", "replace" };
 133       printf("op: %s\nsource file: %s\nlength: %zu\n"
 134              "key: %s\nflags: %x\nexpires: %llu\n",
 135              opstr[opt_method - OPT_SET], argv[optind], (size_t)sbuf.st_size,
 136              ptr, opt_flags, (unsigned long long)opt_expires);
 137     }
 138
 139     if ((file_buffer_ptr= (char *)malloc(sizeof(char) * (size_t)sbuf.st_size)) == NULL)
 140     {
 141       fprintf(stderr, "malloc: %s\n", strerror(errno));
 142       exit(1);
 143     }
 144
 145     if ((read_length= read(fd, file_buffer_ptr, (size_t)sbuf.st_size)) == -1)
 146     {
 147       fprintf(stderr, "read: %s\n", strerror(errno));
 148       exit(1);
 149     }
 150
 151     if (read_length != sbuf.st_size)
 152     {
 153       fprintf(stderr, "Failure reading from file\n");
 154       exit(1);
 155     }
 156
 157     if (opt_method == OPT_ADD)
 158       rc= memcached_add(memc, ptr, strlen(ptr),
 159                         file_buffer_ptr, (size_t)sbuf.st_size,
 160                         opt_expires, opt_flags);
 161     else if (opt_method == OPT_REPLACE)
 162       rc= memcached_replace(memc, ptr, strlen(ptr),
 163                             file_buffer_ptr, (size_t)sbuf.st_size,
 164                             opt_expires, opt_flags);
 165     else
 166       rc= memcached_set(memc, ptr, strlen(ptr),
 167                         file_buffer_ptr, (size_t)sbuf.st_size,
 168                         opt_expires, opt_flags);
 169
 170     if (rc != MEMCACHED_SUCCESS)
 171     {
 172       fprintf(stderr, "memcp: %s: memcache error %s",
 173               ptr, memcached_strerror(memc, rc));
 174       if (memc->cached_errno)
 175         fprintf(stderr, " system error %s", strerror(memc->cached_errno));
 176       fprintf(stderr, "\n");
 177     }
 178
 179     free(file_buffer_ptr);
 180     close(fd);
 181     optind++;
 182   }
 183
 184   memcached_free(memc);
 185
 186   if (opt_servers)
 187     free(opt_servers);
 188   if (opt_hash)
 189     free(opt_hash);
 190
 191   return 0;
 192 }
 193
 194 static void options_parse(int argc, char *argv[])
 195 {
 196   int option_index= 0;
 197   int option_rv;
 198
 199   memcached_programs_help_st help_options[]=
 200   {
 201     {0},
 202   };
 203
 204   static struct option long_options[]=
 205     {
 206       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 207       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 208       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 209       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 210       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 211       {(OPTIONSTRING)"flag", required_argument, NULL, OPT_FLAG},
 212       {(OPTIONSTRING)"expire", required_argument, NULL, OPT_EXPIRE},
 213       {(OPTIONSTRING)"set",  no_argument, NULL, OPT_SET},
 214       {(OPTIONSTRING)"add",  no_argument, NULL, OPT_ADD},
 215       {(OPTIONSTRING)"replace",  no_argument, NULL, OPT_REPLACE},
 216       {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 217       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 218       {0, 0, 0, 0},
 219     };
 220
 221   while (1)
 222   {
 223     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 224
 225     if (option_rv == -1) break;
 226
 227     switch (option_rv)
 228     {
 229     case 0:
 230       break;
 231     case OPT_BINARY:
 232       opt_binary = 1;
 233       break;
 234     case OPT_VERBOSE: /* --verbose or -v */
 235       opt_verbose = OPT_VERBOSE;
 236       break;
 237     case OPT_DEBUG: /* --debug or -d */
 238       opt_verbose = OPT_DEBUG;
 239       break;
 240     case OPT_VERSION: /* --version or -V */
 241       version_command(PROGRAM_NAME);
 242       break;
 243     case OPT_HELP: /* --help or -h */
 244       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 245       break;
 246     case OPT_SERVERS: /* --servers or -s */
 247       opt_servers= strdup(optarg);
 248       break;
 249     case OPT_FLAG: /* --flag */
 250       {
 251         bool strtol_error;
 252         opt_flags= (uint32_t)strtol_wrapper(optarg, 16, &strtol_error);
 253         if (strtol_error == true)
 254         {
 255           fprintf(stderr, "Bad value passed via --flag\n");
 256           exit(1);
 257         }
 258         break;
 259       }
 260     case OPT_EXPIRE: /* --expire */
 261       {
 262         bool strtol_error;
 263         opt_expires= (time_t)strtol_wrapper(optarg, 16, &strtol_error);
 264         if (strtol_error == true)
 265         {
 266           fprintf(stderr, "Bad value passed via --flag\n");
 267           exit(1);
 268         }
 269       }
 270     case OPT_SET:
 271       opt_method= OPT_SET;
 272       break;
 273     case OPT_REPLACE:
 274       opt_method= OPT_REPLACE;
 275       break;
 276     case OPT_ADD:
 277       opt_method= OPT_ADD;
 278       break;
 279     case OPT_HASH:
 280       opt_hash= strdup(optarg);
 281       break;
 282     case '?':
 283       /* getopt_long already printed an error message. */
 284       exit(1);
 285     default:
 286       abort();
 287     }
 288   }
 289 }