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 #undef malloc
  41 #undef free
  42
  43 #if HAVE_STDEXCEPT
  44 #include <stdexcept>
  45 #endif
  46 #if HAVE_IOSTREAM
  47 #include <iostream>
  48 #endif
  49 #if HAVE_CASSERT
  50 #include <cassert>
  51 #endif
  52
  53 /* stub functions for parts of squid not factored to be dynamic yet */
  54 void
  55 eventAdd(const char *name, EVH * func, void *arg, double when, int, bool cbdata)
  56 {}
  57
  58 // required by storeKeyPublicByRequest*
  59 // XXX: what pulls in storeKeyPublicByRequest?
  60 const char *urlCanonical(HttpRequest *) { assert(false); return NULL; }
  61
  62 void
  63 storeAppendPrintf(StoreEntry * e, const char *fmt,...)
  64 {
  65     va_list args;
  66     va_start(args, fmt);
  67
  68     assert(false);
  69
  70     va_end(args);
  71 }
  72
  73 #include "CacheManager.h"
  74 CacheManager*
  75 CacheManager::GetInstance()
  76 {
  77     assert(false);
  78     return NULL;
  79 }
  80
  81 void
  82 CacheManager::registerAction(char const * action, char const * desc, OBJH * handler, int pw_req_flag, int atomic) {}
  83
  84 /* MinGW needs also a stub of death() */
  85 void
  86 death(int sig)
  87 {
  88     std::cout << "Fatal: Signal " <<  sig;
  89     exit(1);
  90 }
  91
  92 void
  93 fatal(const char *message)
  94 {
  95     fprintf(stderr, "FATAL: %s\n", message);
  96     exit(1);
  97 }
  98
  99 /* end stub functions */
 100
 101 struct MetaStd {
 102     time_t timestamp;
 103     time_t lastref;
 104     time_t expires;
 105     time_t lastmod;
 106     size_t swap_file_sz;
 107     u_short refcount;
 108     u_short flags;
 109 };
 110
 111 struct MetaStdLfs {
 112     time_t timestamp;
 113     time_t lastref;
 114     time_t expires;
 115     time_t lastmod;
 116     uint64_t swap_file_sz;
 117     u_short refcount;
 118     u_short flags;
 119 };
 120
 121 struct DumpStoreMeta : public unary_function<StoreMeta, void> {
 122     DumpStoreMeta() {}
 123
 124     void operator()(StoreMeta const &x) {
 125         switch (x.getType()) {
 126
 127         case STORE_META_KEY:
 128             std::cout << "MD5: " << storeKeyText((const cache_key *)x.value) << std::endl;
 129             break;
 130
 131         case STORE_META_STD:
 132             std::cout << "STD, Size:" << ((struct MetaStd*)x.value)->swap_file_sz <<
 133                       " Flags: 0x" << std::hex << ((struct MetaStd*)x.value)->flags << std::dec <<
 134                       " Refcount: " << ((struct MetaStd*)x.value)->refcount <<
 135                       std::endl;
 136             break;
 137
 138         case STORE_META_STD_LFS:
 139             std::cout << "STD_LFS, Size: " << ((struct MetaStdLfs*)x.value)->swap_file_sz <<
 140                       " Flags: 0x" << std::hex << ((struct MetaStdLfs*)x.value)->flags << std::dec <<
 141                       " Refcount: " << ((struct MetaStdLfs*)x.value)->refcount <<
 142                       std::endl;
 143             break;
 144
 145         case STORE_META_URL:
 146             assert (((char *)x.value)[x.length - 1] == 0);
 147             std::cout << "URL: " << (char *)x.value << std::endl;
 148             break;
 149
 150         default:
 151             std::cout << "Unknown store meta type: " << (int)x.getType() <<
 152                       " of length " << x.length << std::endl;
 153             break;
 154         }
 155     }
 156 };
 157
 158 int
 159 main(int argc, char *argv[])
 160 {
 161     int fd = -1;
 162     StoreMeta *metadata = NULL;
 163
 164     try {
 165         if (argc != 2)
 166             throw std::runtime_error("No filename provided");
 167
 168         fd = open (argv[1], O_RDONLY | O_BINARY);
 169
 170         if (fd < 0)
 171             throw std::runtime_error("Could not open file.");
 172
 173         char tempbuf[SM_PAGE_SIZE];
 174
 175         int len = read(fd, tempbuf, SM_PAGE_SIZE);
 176
 177         if (len < 0)
 178             throw std::runtime_error("Could not read header into memory.");
 179
 180         close (fd);
 181
 182         fd = -1;
 183
 184         int hdr_len;
 185
 186         StoreMetaUnpacker aBuilder(tempbuf, len, &hdr_len);
 187
 188         metadata = aBuilder.createStoreMeta ();
 189
 190         cache_key key[SQUID_MD5_DIGEST_LENGTH];
 191
 192         memset(key, '\0', SQUID_MD5_DIGEST_LENGTH);
 193
 194         DumpStoreMeta dumper;
 195
 196         for_each(*metadata, dumper);
 197
 198
 199         return 0;
 200     } catch (std::runtime_error error) {
 201         std::cout << "Failed : " << error.what() << std::endl;
 202
 203         if (fd >= 0)
 204             close(fd);
 205
 206         if (metadata)
 207             StoreMeta::FreeList(&metadata);
 208
 209         return 1;
 210     }
 211 }