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