Sweden-Number/tools/winedump/dump.c

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/*
* File dumping utility
*
* Copyright 2001,2005 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <time.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#include <fcntl.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "winedump.h"
#include "pe.h"
#ifndef O_BINARY
# define O_BINARY 0
#endif
static void* dump_base;
static unsigned long dump_total_len;
void dump_data( const unsigned char *ptr, unsigned int size, const char *prefix )
{
unsigned int i, j;
printf( "%s%08x: ", prefix, 0 );
if (!ptr)
{
printf("NULL\n");
return;
}
for (i = 0; i < size; i++)
{
printf( "%02x%c", ptr[i], (i % 16 == 7) ? '-' : ' ' );
if ((i % 16) == 15)
{
printf( " " );
for (j = 0; j < 16; j++)
printf( "%c", isprint(ptr[i-15+j]) ? ptr[i-15+j] : '.' );
if (i < size-1) printf( "\n%s%08x: ", prefix, i + 1 );
}
}
if (i % 16)
{
printf( "%*s ", 3 * (16-(i%16)), "" );
for (j = 0; j < i % 16; j++)
printf( "%c", isprint(ptr[i-(i%16)+j]) ? ptr[i-(i%16)+j] : '.' );
}
printf( "\n" );
}
const char* get_time_str(DWORD _t)
{
time_t t = (time_t)_t;
const char *str = ctime(&t);
size_t len = strlen(str);
static char buf[128];
/* FIXME: I don't get the same values from MS' pedump running under Wine...
* I wonder if Wine isn't broken wrt to GMT settings...
*/
if (len && str[len-1] == '\n') len--;
if (len >= sizeof(buf)) len = sizeof(buf) - 1;
memcpy( buf, str, len );
buf[len] = 0;
return buf;
}
unsigned int strlenW( const WCHAR *str )
{
const WCHAR *s = str;
while (*s) s++;
return s - str;
}
void dump_unicode_str( const WCHAR *str, int len )
{
if (len == -1) len = strlenW( str );
printf( "L\"");
while (len-- > 0 && *str)
{
WCHAR c = *str++;
switch (c)
{
case '\n': printf( "\\n" ); break;
case '\r': printf( "\\r" ); break;
case '\t': printf( "\\t" ); break;
case '"': printf( "\\\"" ); break;
case '\\': printf( "\\\\" ); break;
default:
if (c >= ' ' && c <= 126) putchar(c);
else printf( "\\u%04x",c);
}
}
printf( "\"" );
}
void* PRD(unsigned long prd, unsigned long len)
{
return (prd + len > dump_total_len) ? NULL : (char*)dump_base + prd;
}
unsigned long Offset(void* ptr)
{
if (ptr < dump_base) {printf("<<<<<ptr below\n");return 0;}
if ((char *)ptr >= (char*)dump_base + dump_total_len) {printf("<<<<<ptr above\n");return 0;}
return (char*)ptr - (char*)dump_base;
}
static void do_dump( enum FileSig sig, void* pmt )
{
if (sig == SIG_NE)
{
ne_dump( dump_base, dump_total_len );
return;
}
if (sig == SIG_LE)
{
le_dump( dump_base, dump_total_len );
return;
}
pe_dump(pmt);
}
static enum FileSig check_headers(void** pmt)
{
WORD* pw;
DWORD* pdw;
IMAGE_DOS_HEADER* dh;
enum FileSig sig;
pw = PRD(0, sizeof(WORD));
if (!pw) {printf("Can't get main signature, aborting\n"); return 0;}
*pmt = NULL;
switch (*pw)
{
case IMAGE_DOS_SIGNATURE:
sig = SIG_DOS;
dh = PRD(0, sizeof(IMAGE_DOS_HEADER));
if (dh && dh->e_lfanew >= sizeof(*dh)) /* reasonable DOS header ? */
{
/* the signature is the first DWORD */
pdw = PRD(dh->e_lfanew, sizeof(DWORD));
if (pdw)
{
if (*pdw == IMAGE_NT_SIGNATURE)
{
*pmt = PRD(dh->e_lfanew, sizeof(DWORD)+sizeof(IMAGE_FILE_HEADER));
sig = SIG_PE;
}
else if (*(WORD *)pdw == IMAGE_OS2_SIGNATURE)
{
sig = SIG_NE;
}
else if (*(WORD *)pdw == IMAGE_VXD_SIGNATURE)
{
sig = SIG_LE;
}
else
{
printf("No PE Signature found\n");
}
}
else
{
printf("Can't get the extented signature, aborting\n");
}
}
break;
case 0x4944: /* "DI" */
sig = SIG_DBG;
break;
case 0x444D: /* "MD" */
pdw = PRD(0, sizeof(DWORD));
if (pdw && *pdw == 0x504D444D) /* "MDMP" */
sig = SIG_MDMP;
else
sig = SIG_UNKNOWN;
break;
default:
printf("No known main signature (%.2s/%x), aborting\n", (char*)pw, *pw);
sig = SIG_UNKNOWN;
}
return sig;
}
int dump_analysis(const char* name, void (*fn)(enum FileSig, void*), enum FileSig wanted_sig)
{
int fd;
enum FileSig effective_sig;
int ret = 1;
struct stat s;
void* pmt;
setbuf(stdout, NULL);
fd = open(name, O_RDONLY | O_BINARY);
if (fd == -1) fatal("Can't open file");
if (fstat(fd, &s) < 0) fatal("Can't get size");
dump_total_len = s.st_size;
#ifdef HAVE_MMAP
if ((dump_base = mmap(NULL, dump_total_len, PROT_READ, MAP_PRIVATE, fd, 0)) == (void *)-1)
#endif
{
if (!(dump_base = malloc( dump_total_len ))) fatal( "Out of memory" );
if ((unsigned long)read( fd, dump_base, dump_total_len ) != dump_total_len) fatal( "Cannot read file" );
}
effective_sig = check_headers(&pmt);
if (effective_sig == SIG_UNKNOWN)
{
printf("Can't get a recognized file signature, aborting\n");
ret = 0;
}
else if (wanted_sig == SIG_UNKNOWN || wanted_sig == effective_sig)
{
switch (effective_sig)
{
case SIG_UNKNOWN: /* shouldn't happen... */
ret = 0; break;
case SIG_PE:
case SIG_NE:
case SIG_LE:
printf("Contents of \"%s\": %ld bytes\n\n", name, dump_total_len);
(*fn)(effective_sig, pmt);
break;
case SIG_DBG:
dump_separate_dbg();
break;
case SIG_DOS:
ret = 0; break;
case SIG_MDMP:
mdmp_dump();
break;
}
}
else
{
printf("Can't get a suitable file signature, aborting\n");
ret = 0;
}
if (ret) printf("Done dumping %s\n", name);
#ifdef HAVE_MMAP
if (munmap(dump_base, dump_total_len) == -1)
#endif
{
free( dump_base );
}
close(fd);
return ret;
}
void dump_file(const char* name)
{
dump_analysis(name, do_dump, SIG_UNKNOWN);
}