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 static char *opt_username;
  45 static char *opt_passwd;
  46
  47 static long strtol_wrapper(const char *nptr, int base, bool *error)
  48 {
  49   long val;
  50   char *endptr;
  51
  52   errno= 0;    /* To distinguish success/failure after call */
  53   val= strtol(nptr, &endptr, base);
  54
  55   /* Check for various possible errors */
  56
  57   if ((errno == ERANGE && (val == LONG_MAX || val == LONG_MIN))
  58       || (errno != 0 && val == 0))
  59   {
  60     *error= true;
  61     return 0;
  62   }
  63
  64   if (endptr == nptr)
  65   {
  66     *error= true;
  67     return 0;
  68   }
  69
  70   *error= false;
  71   return val;
  72 }
  73
  74 int main(int argc, char *argv[])
  75 {
  76   memcached_st *memc;
  77   memcached_return_t rc;
  78   memcached_server_st *servers;
  79
  80   int return_code= 0;
  81
  82   options_parse(argc, argv);
  83
  84   memc= memcached_create(NULL);
  85   process_hash_option(memc, opt_hash);
  86
  87   if (!opt_servers)
  88   {
  89     char *temp;
  90
  91     if ((temp= getenv("MEMCACHED_SERVERS")))
  92     {
  93       opt_servers= strdup(temp);
  94     }
  95     else
  96     {
  97       fprintf(stderr, "No Servers provided\n");
  98       exit(1);
  99     }
 100   }
 101
 102   if (opt_servers)
 103     servers= memcached_servers_parse(opt_servers);
 104   else
 105     servers= memcached_servers_parse(argv[--argc]);
 106
 107   memcached_server_push(memc, servers);
 108   memcached_server_list_free(servers);
 109   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
 110                          (uint64_t)opt_binary);
 111   if (!initialize_sasl(memc, opt_username, opt_passwd))
 112   {
 113     memcached_free(memc);
 114     return 1;
 115   }
 116
 117   while (optind < argc)
 118   {
 119     struct stat sbuf;
 120     int fd;
 121     char *ptr;
 122     ssize_t read_length;
 123     char *file_buffer_ptr;
 124
 125     fd= open(argv[optind], O_RDONLY);
 126     if (fd < 0)
 127     {
 128       fprintf(stderr, "memcp: %s: %s\n", argv[optind], strerror(errno));
 129       optind++;
 130       continue;
 131     }
 132
 133     (void)fstat(fd, &sbuf);
 134
 135     ptr= rindex(argv[optind], '/');
 136     if (ptr)
 137       ptr++;
 138     else
 139       ptr= argv[optind];
 140
 141     if (opt_verbose)
 142     {
 143       static const char *opstr[] = { "set", "add", "replace" };
 144       printf("op: %s\nsource file: %s\nlength: %zu\n"
 145              "key: %s\nflags: %x\nexpires: %llu\n",
 146              opstr[opt_method - OPT_SET], argv[optind], (size_t)sbuf.st_size,
 147              ptr, opt_flags, (unsigned long long)opt_expires);
 148     }
 149
 150     if ((file_buffer_ptr= (char *)malloc(sizeof(char) * (size_t)sbuf.st_size)) == NULL)
 151     {
 152       fprintf(stderr, "malloc: %s\n", strerror(errno));
 153       exit(1);
 154     }
 155
 156     if ((read_length= read(fd, file_buffer_ptr, (size_t)sbuf.st_size)) == -1)
 157     {
 158       fprintf(stderr, "read: %s\n", strerror(errno));
 159       exit(1);
 160     }
 161
 162     if (read_length != sbuf.st_size)
 163     {
 164       fprintf(stderr, "Failure reading from file\n");
 165       exit(1);
 166     }
 167
 168     if (opt_method == OPT_ADD)
 169       rc= memcached_add(memc, ptr, strlen(ptr),
 170                         file_buffer_ptr, (size_t)sbuf.st_size,
 171                         opt_expires, opt_flags);
 172     else if (opt_method == OPT_REPLACE)
 173       rc= memcached_replace(memc, ptr, strlen(ptr),
 174                             file_buffer_ptr, (size_t)sbuf.st_size,
 175                             opt_expires, opt_flags);
 176     else
 177       rc= memcached_set(memc, ptr, strlen(ptr),
 178                         file_buffer_ptr, (size_t)sbuf.st_size,
 179                         opt_expires, opt_flags);
 180
 181     if (rc != MEMCACHED_SUCCESS)
 182     {
 183       fprintf(stderr, "memcp: %s: memcache error %s",
 184               ptr, memcached_strerror(memc, rc));
 185       if (memc->cached_errno)
 186         fprintf(stderr, " system error %s", strerror(memc->cached_errno));
 187       fprintf(stderr, "\n");
 188
 189       return_code= -1;
 190     }
 191
 192     free(file_buffer_ptr);
 193     close(fd);
 194     optind++;
 195   }
 196
 197   memcached_free(memc);
 198
 199   if (opt_servers)
 200     free(opt_servers);
 201   if (opt_hash)
 202     free(opt_hash);
 203   shutdown_sasl();
 204
 205   return return_code;
 206 }
 207
 208 static void options_parse(int argc, char *argv[])
 209 {
 210   int option_index= 0;
 211   int option_rv;
 212
 213   memcached_programs_help_st help_options[]=
 214   {
 215     {0},
 216   };
 217
 218   static struct option long_options[]=
 219     {
 220       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 221       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 222       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 223       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 224       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 225       {(OPTIONSTRING)"flag", required_argument, NULL, OPT_FLAG},
 226       {(OPTIONSTRING)"expire", required_argument, NULL, OPT_EXPIRE},
 227       {(OPTIONSTRING)"set",  no_argument, NULL, OPT_SET},
 228       {(OPTIONSTRING)"add",  no_argument, NULL, OPT_ADD},
 229       {(OPTIONSTRING)"replace",  no_argument, NULL, OPT_REPLACE},
 230       {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 231       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 232       {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 233       {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 234       {0, 0, 0, 0},
 235     };
 236
 237   while (1)
 238   {
 239     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 240
 241     if (option_rv == -1) break;
 242
 243     switch (option_rv)
 244     {
 245     case 0:
 246       break;
 247     case OPT_BINARY:
 248       opt_binary = 1;
 249       break;
 250     case OPT_VERBOSE: /* --verbose or -v */
 251       opt_verbose = OPT_VERBOSE;
 252       break;
 253     case OPT_DEBUG: /* --debug or -d */
 254       opt_verbose = OPT_DEBUG;
 255       break;
 256     case OPT_VERSION: /* --version or -V */
 257       version_command(PROGRAM_NAME);
 258       break;
 259     case OPT_HELP: /* --help or -h */
 260       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 261       break;
 262     case OPT_SERVERS: /* --servers or -s */
 263       opt_servers= strdup(optarg);
 264       break;
 265     case OPT_FLAG: /* --flag */
 266       {
 267         bool strtol_error;
 268         opt_flags= (uint32_t)strtol_wrapper(optarg, 16, &strtol_error);
 269         if (strtol_error == true)
 270         {
 271           fprintf(stderr, "Bad value passed via --flag\n");
 272           exit(1);
 273         }
 274         break;
 275       }
 276     case OPT_EXPIRE: /* --expire */
 277       {
 278         bool strtol_error;
 279         opt_expires= (time_t)strtol_wrapper(optarg, 16, &strtol_error);
 280         if (strtol_error == true)
 281         {
 282           fprintf(stderr, "Bad value passed via --flag\n");
 283           exit(1);
 284         }
 285       }
 286     case OPT_SET:
 287       opt_method= OPT_SET;
 288       break;
 289     case OPT_REPLACE:
 290       opt_method= OPT_REPLACE;
 291       break;
 292     case OPT_ADD:
 293       opt_method= OPT_ADD;
 294       break;
 295     case OPT_HASH:
 296       opt_hash= strdup(optarg);
 297       break;
 298     case OPT_USERNAME:
 299       opt_username= optarg;
 300       break;
 301     case OPT_PASSWD:
 302       opt_passwd= optarg;
 303       break;
 304    case '?':
 305       /* getopt_long already printed an error message. */
 306       exit(1);
 307     default:
 308       abort();
 309     }
 310   }
 311 }