tools/winedump/dump.c

   1 /*
   2  *      File dumping utility
   3  *
   4  *      Copyright 2001,2007 Eric Pouech
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdlib.h>
  25 #include <stdarg.h>
  26 #include <stdio.h>
  27 #ifdef HAVE_UNISTD_H
  28 # include <unistd.h>
  29 #endif
  30 #include <time.h>
  31 #ifdef HAVE_SYS_TYPES_H
  32 # include <sys/types.h>
  33 #endif
  34 #ifdef HAVE_SYS_STAT_H
  35 # include <sys/stat.h>
  36 #endif
  37 #ifdef HAVE_SYS_MMAN_H
  38 #include <sys/mman.h>
  39 #endif
  40 #include <fcntl.h>
  41
  42 #include "windef.h"
  43 #include "winbase.h"
  44 #include "winedump.h"
  45
  46 static void*                    dump_base;
  47 static unsigned long            dump_total_len;
  48
  49 void dump_data( const unsigned char *ptr, unsigned int size, const char *prefix )
  50 {
  51     unsigned int i, j;
  52
  53     printf( "%s%08x: ", prefix, 0 );
  54     if (!ptr)
  55     {
  56         printf("NULL\n");
  57         return;
  58     }
  59     for (i = 0; i < size; i++)
  60     {
  61         printf( "%02x%c", ptr[i], (i % 16 == 7) ? '-' : ' ' );
  62         if ((i % 16) == 15)
  63         {
  64             printf( " " );
  65             for (j = 0; j < 16; j++)
  66                 printf( "%c", isprint(ptr[i-15+j]) ? ptr[i-15+j] : '.' );
  67             if (i < size-1) printf( "\n%s%08x: ", prefix, i + 1 );
  68         }
  69     }
  70     if (i % 16)
  71     {
  72         printf( "%*s ", 3 * (16-(i%16)), "" );
  73         for (j = 0; j < i % 16; j++)
  74             printf( "%c", isprint(ptr[i-(i%16)+j]) ? ptr[i-(i%16)+j] : '.' );
  75     }
  76     printf( "\n" );
  77 }
  78
  79 static char* dump_want_n(unsigned sz)
  80 {
  81     static char         buffer[4 * 1024];
  82     static unsigned     idx;
  83     char*               ret;
  84
  85     assert(sz < sizeof(buffer));
  86     if (idx + sz >= sizeof(buffer)) idx = 0;
  87     ret = &buffer[idx];
  88     idx += sz;
  89     return ret;
  90 }
  91
  92 const char *get_time_str(unsigned long _t)
  93 {
  94     const time_t    t = (const time_t)_t;
  95     const char      *str = ctime(&t);
  96     size_t          len;
  97     char*           buf;
  98
  99     if (!str) return "not valid time";
 100
 101     len = strlen(str);
 102     /* FIXME: I don't get the same values from MS' pedump running under Wine...
 103      * I wonder if Wine isn't broken wrt to GMT settings...
 104      */
 105     if (len && str[len-1] == '\n') len--;
 106     buf = dump_want_n(len + 1);
 107     if (buf)
 108     {
 109         memcpy( buf, str, len );
 110         buf[len] = 0;
 111     }
 112     return buf;
 113 }
 114
 115 unsigned int strlenW( const WCHAR *str )
 116 {
 117     const WCHAR *s = str;
 118     while (*s) s++;
 119     return s - str;
 120 }
 121
 122 void dump_unicode_str( const WCHAR *str, int len )
 123 {
 124     if (len == -1) len = strlenW( str );
 125     printf( "L\"");
 126     while (len-- > 0 && *str)
 127     {
 128         WCHAR c = *str++;
 129         switch (c)
 130         {
 131         case '\n': printf( "\\n" ); break;
 132         case '\r': printf( "\\r" ); break;
 133         case '\t': printf( "\\t" ); break;
 134         case '"':  printf( "\\\"" ); break;
 135         case '\\': printf( "\\\\" ); break;
 136         default:
 137             if (c >= ' ' && c <= 126) putchar(c);
 138             else printf( "\\u%04x",c);
 139         }
 140     }
 141     printf( "\"" );
 142 }
 143
 144 const char* get_symbol_str(const char* symname)
 145 {
 146     char*       tmp;
 147     const char* ret;
 148
 149     if (!symname) return "(nil)";
 150     if (globals.do_demangle)
 151     {
 152         parsed_symbol   symbol;
 153
 154         symbol_init(&symbol, symname);
 155         if (!symbol_demangle(&symbol))
 156             ret = symname;
 157         else if (symbol.flags & SYM_DATA)
 158         {
 159             ret = tmp = dump_want_n(strlen(symbol.arg_text[0]) + 1);
 160             if (tmp) strcpy(tmp, symbol.arg_text[0]);
 161         }
 162         else
 163         {
 164             unsigned int i, len, start = symbol.flags & SYM_THISCALL ? 1 : 0;
 165
 166             len = strlen(symbol.return_text) + 3 /* ' __' */ +
 167                 strlen(symbol_get_call_convention(&symbol)) + 1 /* ' ' */+
 168                 strlen(symbol.function_name) + 1 /* ')' */;
 169             if (!symbol.argc || (symbol.argc == 1 && symbol.flags & SYM_THISCALL))
 170                 len += 4 /* "void" */;
 171             else for (i = start; i < symbol.argc; i++)
 172                 len += (i > start ? 2 /* ", " */ : 0 /* "" */) + strlen(symbol.arg_text[i]);
 173             if (symbol.varargs) len += 5 /* ", ..." */;
 174             len += 2; /* ")\0" */
 175
 176             ret = tmp = dump_want_n(len);
 177             if (tmp)
 178             {
 179                 sprintf(tmp, "%s __%s %s(",
 180                         symbol.return_text,
 181                         symbol_get_call_convention(&symbol),
 182                         symbol.function_name);
 183                 if (!symbol.argc || (symbol.argc == 1 && symbol.flags & SYM_THISCALL))
 184                     strcat(tmp, "void");
 185                 else for (i = start; i < symbol.argc; i++)
 186                 {
 187                     if (i > start) strcat(tmp, ", ");
 188                     strcat(tmp, symbol.arg_text[i]);
 189                 }
 190                 if (symbol.varargs) strcat(tmp, ", ...");
 191                 strcat(tmp, ")");
 192             }
 193         }
 194         symbol_clear(&symbol);
 195     }
 196     else ret = symname;
 197     return ret;
 198 }
 199
 200 const char* get_guid_str(const GUID* guid)
 201 {
 202     char* str;
 203
 204     str = dump_want_n(39);
 205     if (str)
 206         sprintf(str, "{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
 207                 guid->Data1, guid->Data2, guid->Data3,
 208                 guid->Data4[0], guid->Data4[1], guid->Data4[2], guid->Data4[3],
 209                 guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
 210     return str;
 211 }
 212
 213 const void*     PRD(unsigned long prd, unsigned long len)
 214 {
 215     return (prd + len > dump_total_len) ? NULL : (const char*)dump_base + prd;
 216 }
 217
 218 unsigned long Offset(const void* ptr)
 219 {
 220     if (ptr < dump_base) {printf("<<<<<ptr below\n");return 0;}
 221     if ((const char *)ptr >= (const char*)dump_base + dump_total_len) {printf("<<<<<ptr above\n");return 0;}
 222     return (const char *)ptr - (const char *)dump_base;
 223 }
 224
 225 static const struct dumper
 226 {
 227     enum FileSig        kind;
 228     enum FileSig        (*get_kind)(void);
 229     file_dumper         dumper; /* default dump tool */
 230 }
 231 dumpers[] =
 232 {
 233     {SIG_DOS,           get_kind_exec,  dos_dump},
 234     {SIG_PE,            get_kind_exec,  pe_dump},
 235     {SIG_DBG,           get_kind_dbg,   dbg_dump},
 236     {SIG_PDB,           get_kind_pdb,   pdb_dump},
 237     {SIG_NE,            get_kind_exec,  ne_dump},
 238     {SIG_LE,            get_kind_exec,  le_dump},
 239     {SIG_COFFLIB,       get_kind_lib,   lib_dump},
 240     {SIG_MDMP,          get_kind_mdmp,  mdmp_dump},
 241     {SIG_LNK,           get_kind_lnk,   lnk_dump},
 242     {SIG_EMF,           get_kind_emf,   emf_dump},
 243     {SIG_FNT,           get_kind_fnt,   fnt_dump},
 244     {SIG_MSFT,          get_kind_msft,  msft_dump},
 245     {SIG_UNKNOWN,       NULL,           NULL} /* sentinel */
 246 };
 247
 248 BOOL dump_analysis(const char *name, file_dumper fn, enum FileSig wanted_sig)
 249 {
 250     int                 fd;
 251     BOOL                ret = TRUE;
 252     struct stat         s;
 253     const struct dumper *dpr;
 254
 255     setbuf(stdout, NULL);
 256
 257     fd = open(name, O_RDONLY | O_BINARY);
 258     if (fd == -1) fatal("Can't open file");
 259
 260     if (fstat(fd, &s) < 0) fatal("Can't get size");
 261     dump_total_len = s.st_size;
 262
 263 #ifdef HAVE_MMAP
 264     if ((dump_base = mmap(NULL, dump_total_len, PROT_READ, MAP_PRIVATE, fd, 0)) == (void *)-1)
 265 #endif
 266     {
 267         if (!(dump_base = malloc( dump_total_len ))) fatal( "Out of memory" );
 268         if ((unsigned long)read( fd, dump_base, dump_total_len ) != dump_total_len) fatal( "Cannot read file" );
 269     }
 270
 271     printf("Contents of %s: %ld bytes\n\n", name, dump_total_len);
 272
 273     for (dpr = dumpers; dpr->kind != SIG_UNKNOWN; dpr++)
 274     {
 275         if (dpr->get_kind() == dpr->kind &&
 276             (wanted_sig == SIG_UNKNOWN || wanted_sig == dpr->kind))
 277         {
 278             if (fn) fn(); else dpr->dumper();
 279             break;
 280         }
 281     }
 282     if (dpr->kind == SIG_UNKNOWN)
 283     {
 284         printf("Can't get a suitable file signature, aborting\n");
 285         ret = FALSE;
 286     }
 287
 288     if (ret) printf("Done dumping %s\n", name);
 289 #ifdef HAVE_MMAP
 290     if (munmap(dump_base, dump_total_len) == -1)
 291 #endif
 292     {
 293         free( dump_base );
 294     }
 295     close(fd);
 296
 297     return ret;
 298 }
 299
 300 void    dump_file(const char* name)
 301 {
 302     dump_analysis(name, NULL, SIG_UNKNOWN);
 303 }