src/ufsdump.cc

   1 /*
   2  * DEBUG: section 00    UFS Store Dump Tool
   3  * AUTHOR: Robert Collins
   4  *
   5  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   6  * ----------------------------------------------------------
   7  *
   8  *  Squid is the result of efforts by numerous individuals from
   9  *  the Internet community; see the CONTRIBUTORS file for full
  10  *  details.   Many organizations have provided support for Squid's
  11  *  development; see the SPONSORS file for full details.  Squid is
  12  *  Copyrighted (C) 2001 by the Regents of the University of
  13  *  California; see the COPYRIGHT file for full details.  Squid
  14  *  incorporates software developed and/or copyrighted by other
  15  *  sources; see the CREDITS file for full details.
  16  *
  17  *  This program is free software; you can redistribute it and/or modify
  18  *  it under the terms of the GNU General Public License as published by
  19  *  the Free Software Foundation; either version 2 of the License, or
  20  *  (at your option) any later version.
  21  *
  22  *  This program is distributed in the hope that it will be useful,
  23  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  *  GNU General Public License for more details.
  26  *
  27  *  You should have received a copy of the GNU General Public License
  28  *  along with this program; if not, write to the Free Software
  29  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  30  *
  31  */
  32
  33 #include "squid.h"
  34 #include "Generic.h"
  35 #include "mgr/Registration.h"
  36 #include "Store.h"
  37 #include "store_key_md5.h"
  38 #include "StoreMeta.h"
  39 #include "StoreMetaUnpacker.h"
  40
  41 #undef malloc
  42 #undef free
  43
  44 #if HAVE_STDEXCEPT
  45 #include <stdexcept>
  46 #endif
  47 #if HAVE_IOSTREAM
  48 #include <iostream>
  49 #endif
  50 #if HAVE_CASSERT
  51 #include <cassert>
  52 #endif
  53
  54 /* stub functions for parts of squid not factored to be dynamic yet */
  55 void
  56 eventAdd(const char *name, EVH * func, void *arg, double when, int, bool cbdata)
  57 {}
  58
  59 // required by storeKeyPublicByRequest*
  60 // XXX: what pulls in storeKeyPublicByRequest?
  61 const char *urlCanonical(HttpRequest *) { assert(false); return NULL; }
  62
  63 void
  64 storeAppendPrintf(StoreEntry * e, const char *fmt,...)
  65 {
  66     va_list args;
  67     va_start(args, fmt);
  68
  69     assert(false);
  70
  71     va_end(args);
  72 }
  73
  74 void
  75 Mgr::RegisterAction(char const * action, char const * desc, OBJH * handler, int pw_req_flag, int atomic) {}
  76
  77 /* MinGW needs also a stub of death() */
  78 void
  79 death(int sig)
  80 {
  81     std::cout << "Fatal: Signal " <<  sig;
  82     exit(1);
  83 }
  84
  85 void
  86 fatal(const char *message)
  87 {
  88     fprintf(stderr, "FATAL: %s\n", message);
  89     exit(1);
  90 }
  91
  92 /* end stub functions */
  93
  94 struct MetaStd {
  95     time_t timestamp;
  96     time_t lastref;
  97     time_t expires;
  98     time_t lastmod;
  99     size_t swap_file_sz;
 100     uint16_t refcount;
 101     uint16_t flags;
 102 };
 103
 104 struct MetaStdLfs {
 105     time_t timestamp;
 106     time_t lastref;
 107     time_t expires;
 108     time_t lastmod;
 109     uint64_t swap_file_sz;
 110     uint16_t refcount;
 111     uint16_t flags;
 112 };
 113
 114 struct DumpStoreMeta : public unary_function<StoreMeta, void> {
 115     DumpStoreMeta() {}
 116
 117     void operator()(StoreMeta const &x) {
 118         switch (x.getType()) {
 119
 120         case STORE_META_KEY:
 121             std::cout << "MD5: " << storeKeyText((const cache_key *)x.value) << std::endl;
 122             break;
 123
 124         case STORE_META_STD:
 125             std::cout << "STD, Size:" << ((struct MetaStd*)x.value)->swap_file_sz <<
 126                       " Flags: 0x" << std::hex << ((struct MetaStd*)x.value)->flags << std::dec <<
 127                       " Refcount: " << ((struct MetaStd*)x.value)->refcount <<
 128                       std::endl;
 129             break;
 130
 131         case STORE_META_STD_LFS:
 132             std::cout << "STD_LFS, Size: " << ((struct MetaStdLfs*)x.value)->swap_file_sz <<
 133                       " Flags: 0x" << std::hex << ((struct MetaStdLfs*)x.value)->flags << std::dec <<
 134                       " Refcount: " << ((struct MetaStdLfs*)x.value)->refcount <<
 135                       std::endl;
 136             break;
 137
 138         case STORE_META_URL:
 139             assert (((char *)x.value)[x.length - 1] == 0);
 140             std::cout << "URL: " << (char *)x.value << std::endl;
 141             break;
 142
 143         default:
 144             std::cout << "Unknown store meta type: " << (int)x.getType() <<
 145                       " of length " << x.length << std::endl;
 146             break;
 147         }
 148     }
 149 };
 150
 151 int
 152 main(int argc, char *argv[])
 153 {
 154     int fd = -1;
 155     StoreMeta *metadata = NULL;
 156
 157     try {
 158         if (argc != 2)
 159             throw std::runtime_error("No filename provided");
 160
 161         fd = open (argv[1], O_RDONLY | O_BINARY);
 162
 163         if (fd < 0)
 164             throw std::runtime_error("Could not open file.");
 165
 166         char tempbuf[SM_PAGE_SIZE];
 167
 168         int len = read(fd, tempbuf, SM_PAGE_SIZE);
 169
 170         if (len < 0)
 171             throw std::runtime_error("Could not read header into memory.");
 172
 173         close (fd);
 174
 175         fd = -1;
 176
 177         int hdr_len;
 178
 179         StoreMetaUnpacker aBuilder(tempbuf, len, &hdr_len);
 180
 181         metadata = aBuilder.createStoreMeta ();
 182
 183         cache_key key[SQUID_MD5_DIGEST_LENGTH];
 184
 185         memset(key, '\0', SQUID_MD5_DIGEST_LENGTH);
 186
 187         DumpStoreMeta dumper;
 188
 189         for_each(*metadata, dumper);
 190
 191         return 0;
 192     } catch (std::runtime_error error) {
 193         std::cout << "Failed : " << error.what() << std::endl;
 194
 195         if (fd >= 0)
 196             close(fd);
 197
 198         if (metadata)
 199             StoreMeta::FreeList(&metadata);
 200
 201         return 1;
 202     }
 203 }