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