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 "squid.h"
  36 #include "StoreMeta.h"
  37 #include "StoreMetaUnpacker.h"
  38 #include "Store.h"
  39 #include "store_key_md5.h"
  40 #include "Generic.h"
  41 #include "mgr/Registration.h"
  42
  43 #undef malloc
  44 #undef free
  45
  46 #if HAVE_STDEXCEPT
  47 #include <stdexcept>
  48 #endif
  49 #if HAVE_IOSTREAM
  50 #include <iostream>
  51 #endif
  52 #if HAVE_CASSERT
  53 #include <cassert>
  54 #endif
  55
  56 /* stub functions for parts of squid not factored to be dynamic yet */
  57 void
  58 eventAdd(const char *name, EVH * func, void *arg, double when, int, bool cbdata)
  59 {}
  60
  61 // required by storeKeyPublicByRequest*
  62 // XXX: what pulls in storeKeyPublicByRequest?
  63 const char *urlCanonical(HttpRequest *) { assert(false); return NULL; }
  64
  65 void
  66 storeAppendPrintf(StoreEntry * e, const char *fmt,...)
  67 {
  68     va_list args;
  69     va_start(args, fmt);
  70
  71     assert(false);
  72
  73     va_end(args);
  74 }
  75
  76 void
  77 Mgr::RegisterAction(char const * action, char const * desc, OBJH * handler, int pw_req_flag, int atomic) {}
  78
  79 /* MinGW needs also a stub of death() */
  80 void
  81 death(int sig)
  82 {
  83     std::cout << "Fatal: Signal " <<  sig;
  84     exit(1);
  85 }
  86
  87 void
  88 fatal(const char *message)
  89 {
  90     fprintf(stderr, "FATAL: %s\n", message);
  91     exit(1);
  92 }
  93
  94 /* end stub functions */
  95
  96 struct MetaStd {
  97     time_t timestamp;
  98     time_t lastref;
  99     time_t expires;
 100     time_t lastmod;
 101     size_t swap_file_sz;
 102     uint16_t refcount;
 103     uint16_t flags;
 104 };
 105
 106 struct MetaStdLfs {
 107     time_t timestamp;
 108     time_t lastref;
 109     time_t expires;
 110     time_t lastmod;
 111     uint64_t swap_file_sz;
 112     uint16_t refcount;
 113     uint16_t flags;
 114 };
 115
 116 struct DumpStoreMeta : public unary_function<StoreMeta, void> {
 117     DumpStoreMeta() {}
 118
 119     void operator()(StoreMeta const &x) {
 120         switch (x.getType()) {
 121
 122         case STORE_META_KEY:
 123             std::cout << "MD5: " << storeKeyText((const cache_key *)x.value) << std::endl;
 124             break;
 125
 126         case STORE_META_STD:
 127             std::cout << "STD, Size:" << ((struct MetaStd*)x.value)->swap_file_sz <<
 128                       " Flags: 0x" << std::hex << ((struct MetaStd*)x.value)->flags << std::dec <<
 129                       " Refcount: " << ((struct MetaStd*)x.value)->refcount <<
 130                       std::endl;
 131             break;
 132
 133         case STORE_META_STD_LFS:
 134             std::cout << "STD_LFS, Size: " << ((struct MetaStdLfs*)x.value)->swap_file_sz <<
 135                       " Flags: 0x" << std::hex << ((struct MetaStdLfs*)x.value)->flags << std::dec <<
 136                       " Refcount: " << ((struct MetaStdLfs*)x.value)->refcount <<
 137                       std::endl;
 138             break;
 139
 140         case STORE_META_URL:
 141             assert (((char *)x.value)[x.length - 1] == 0);
 142             std::cout << "URL: " << (char *)x.value << std::endl;
 143             break;
 144
 145         default:
 146             std::cout << "Unknown store meta type: " << (int)x.getType() <<
 147                       " of length " << x.length << std::endl;
 148             break;
 149         }
 150     }
 151 };
 152
 153 int
 154 main(int argc, char *argv[])
 155 {
 156     int fd = -1;
 157     StoreMeta *metadata = NULL;
 158
 159     try {
 160         if (argc != 2)
 161             throw std::runtime_error("No filename provided");
 162
 163         fd = open (argv[1], O_RDONLY | O_BINARY);
 164
 165         if (fd < 0)
 166             throw std::runtime_error("Could not open file.");
 167
 168         char tempbuf[SM_PAGE_SIZE];
 169
 170         int len = read(fd, tempbuf, SM_PAGE_SIZE);
 171
 172         if (len < 0)
 173             throw std::runtime_error("Could not read header into memory.");
 174
 175         close (fd);
 176
 177         fd = -1;
 178
 179         int hdr_len;
 180
 181         StoreMetaUnpacker aBuilder(tempbuf, len, &hdr_len);
 182
 183         metadata = aBuilder.createStoreMeta ();
 184
 185         cache_key key[SQUID_MD5_DIGEST_LENGTH];
 186
 187         memset(key, '\0', SQUID_MD5_DIGEST_LENGTH);
 188
 189         DumpStoreMeta dumper;
 190
 191         for_each(*metadata, dumper);
 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 }