src/ufsdump.cc

   1 /*
   2  * $Id$
   3  *
   4  * DEBUG: section 00    UFS Store Dump Tool
   5  * AUTHOR: Robert Collins
   6  *
   7  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   8  * ----------------------------------------------------------
   9  *
  10  *  Squid is the result of efforts by numerous individuals from
  11  *  the Internet community; see the CONTRIBUTORS file for full
  12  *  details.   Many organizations have provided support for Squid's
  13  *  development; see the SPONSORS file for full details.  Squid is
  14  *  Copyrighted (C) 2001 by the Regents of the University of
  15  *  California; see the COPYRIGHT file for full details.  Squid
  16  *  incorporates software developed and/or copyrighted by other
  17  *  sources; see the CREDITS file for full details.
  18  *
  19  *  This program is free software; you can redistribute it and/or modify
  20  *  it under the terms of the GNU General Public License as published by
  21  *  the Free Software Foundation; either version 2 of the License, or
  22  *  (at your option) any later version.
  23  *
  24  *  This program is distributed in the hope that it will be useful,
  25  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  26  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  27  *  GNU General Public License for more details.
  28  *
  29  *  You should have received a copy of the GNU General Public License
  30  *  along with this program; if not, write to the Free Software
  31  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  32  *
  33  */
  34
  35 #include "config.h"
  36 #include "StoreMeta.h"
  37 #include "StoreMetaUnpacker.h"
  38 #include "Store.h"
  39 #include "Generic.h"
  40 #include "mgr/Registration.h"
  41
  42 #undef malloc
  43 #undef free
  44
  45 #if HAVE_STDEXCEPT
  46 #include <stdexcept>
  47 #endif
  48 #if HAVE_IOSTREAM
  49 #include <iostream>
  50 #endif
  51 #if HAVE_CASSERT
  52 #include <cassert>
  53 #endif
  54
  55 /* stub functions for parts of squid not factored to be dynamic yet */
  56 void
  57 eventAdd(const char *name, EVH * func, void *arg, double when, int, bool cbdata)
  58 {}
  59
  60 // required by storeKeyPublicByRequest*
  61 // XXX: what pulls in storeKeyPublicByRequest?
  62 const char *urlCanonical(HttpRequest *) { assert(false); return NULL; }
  63
  64 void
  65 storeAppendPrintf(StoreEntry * e, const char *fmt,...)
  66 {
  67     va_list args;
  68     va_start(args, fmt);
  69
  70     assert(false);
  71
  72     va_end(args);
  73 }
  74
  75 void
  76 Mgr::RegisterAction(char const * action, char const * desc, OBJH * handler, int pw_req_flag, int atomic) {}
  77
  78 /* MinGW needs also a stub of death() */
  79 void
  80 death(int sig)
  81 {
  82     std::cout << "Fatal: Signal " <<  sig;
  83     exit(1);
  84 }
  85
  86 void
  87 fatal(const char *message)
  88 {
  89     fprintf(stderr, "FATAL: %s\n", message);
  90     exit(1);
  91 }
  92
  93 /* end stub functions */
  94
  95 struct MetaStd {
  96     time_t timestamp;
  97     time_t lastref;
  98     time_t expires;
  99     time_t lastmod;
 100     size_t swap_file_sz;
 101     uint16_t refcount;
 102     uint16_t flags;
 103 };
 104
 105 struct MetaStdLfs {
 106     time_t timestamp;
 107     time_t lastref;
 108     time_t expires;
 109     time_t lastmod;
 110     uint64_t swap_file_sz;
 111     uint16_t refcount;
 112     uint16_t flags;
 113 };
 114
 115 struct DumpStoreMeta : public unary_function<StoreMeta, void> {
 116     DumpStoreMeta() {}
 117
 118     void operator()(StoreMeta const &x) {
 119         switch (x.getType()) {
 120
 121         case STORE_META_KEY:
 122             std::cout << "MD5: " << storeKeyText((const cache_key *)x.value) << std::endl;
 123             break;
 124
 125         case STORE_META_STD:
 126             std::cout << "STD, Size:" << ((struct MetaStd*)x.value)->swap_file_sz <<
 127                       " Flags: 0x" << std::hex << ((struct MetaStd*)x.value)->flags << std::dec <<
 128                       " Refcount: " << ((struct MetaStd*)x.value)->refcount <<
 129                       std::endl;
 130             break;
 131
 132         case STORE_META_STD_LFS:
 133             std::cout << "STD_LFS, Size: " << ((struct MetaStdLfs*)x.value)->swap_file_sz <<
 134                       " Flags: 0x" << std::hex << ((struct MetaStdLfs*)x.value)->flags << std::dec <<
 135                       " Refcount: " << ((struct MetaStdLfs*)x.value)->refcount <<
 136                       std::endl;
 137             break;
 138
 139         case STORE_META_URL:
 140             assert (((char *)x.value)[x.length - 1] == 0);
 141             std::cout << "URL: " << (char *)x.value << std::endl;
 142             break;
 143
 144         default:
 145             std::cout << "Unknown store meta type: " << (int)x.getType() <<
 146                       " of length " << x.length << std::endl;
 147             break;
 148         }
 149     }
 150 };
 151
 152 int
 153 main(int argc, char *argv[])
 154 {
 155     int fd = -1;
 156     StoreMeta *metadata = NULL;
 157
 158     try {
 159         if (argc != 2)
 160             throw std::runtime_error("No filename provided");
 161
 162         fd = open (argv[1], O_RDONLY | O_BINARY);
 163
 164         if (fd < 0)
 165             throw std::runtime_error("Could not open file.");
 166
 167         char tempbuf[SM_PAGE_SIZE];
 168
 169         int len = read(fd, tempbuf, SM_PAGE_SIZE);
 170
 171         if (len < 0)
 172             throw std::runtime_error("Could not read header into memory.");
 173
 174         close (fd);
 175
 176         fd = -1;
 177
 178         int hdr_len;
 179
 180         StoreMetaUnpacker aBuilder(tempbuf, len, &hdr_len);
 181
 182         metadata = aBuilder.createStoreMeta ();
 183
 184         cache_key key[SQUID_MD5_DIGEST_LENGTH];
 185
 186         memset(key, '\0', SQUID_MD5_DIGEST_LENGTH);
 187
 188         DumpStoreMeta dumper;
 189
 190         for_each(*metadata, dumper);
 191
 192
 193         return 0;
 194     } catch (std::runtime_error error) {
 195         std::cout << "Failed : " << error.what() << std::endl;
 196
 197         if (fd >= 0)
 198             close(fd);
 199
 200         if (metadata)
 201             StoreMeta::FreeList(&metadata);
 202
 203         return 1;
 204     }
 205 }