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more gmdb2 work, reorged mdbhandle

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brianb
2003-01-01 22:29:39 +00:00
parent 3c0d61076d
commit cc362c42e9
28 changed files with 893 additions and 181 deletions
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177
src/gmdb2/debug.c
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@@ -1,3 +1,20 @@
/* MDB Tools - A library for reading MS Access database file
* Copyright (C) 2000 Brian Bruns
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "gmdb.h"
#include <glade/glade.h>
extern GtkWidget *app;
@@ -131,6 +148,7 @@ GtkTextBuffer *buffer;
GtkTextIter iter;
GtkWidget *entry;
GtkTextView *textview;
gchar *s;
if (!mdb) return;
@@ -138,21 +156,33 @@ GtkTextView *textview;
entry = glade_xml_get_widget (xml, "debug_entry");
textview = glade_xml_get_widget (xml, "debug_textview");
page = atol(gtk_entry_get_text(GTK_ENTRY(entry)));
s = g_strdup(gtk_entry_get_text(GTK_ENTRY(entry)));
if (!strncmp(s,"0x",2)) {
page = 0;
for (i=2;i<strlen(s);i++) {
page *= 16;
if (isupper(s[i]))
s[i] -= 0x20;
page += s[i] > '9' ? s[i] - 'a' + 10 : s[i] - '0';
}
} else {
page = atol(gtk_entry_get_text(GTK_ENTRY(entry)));
}
if (page>gmdb_get_max_page(mdb) || page<0) {
gmdb_info_msg("Page entered is outside valid page range.");
}
gmdb_debug_clear(xml);
pos = lseek(mdb->fd, 0, SEEK_CUR);
lseek(mdb->fd, page * mdb->pg_size, SEEK_SET);
pos = lseek(mdb->f->fd, 0, SEEK_CUR);
lseek(mdb->f->fd, page * mdb->fmt->pg_size, SEEK_SET);
fbuf = (unsigned char *) malloc(mdb->pg_size);
tbuf = (unsigned char *) malloc( (mdb->pg_size / 16) * 80);
memset(tbuf, 0, (mdb->pg_size / 16) * 80);
length = read(mdb->fd, fbuf, mdb->pg_size);
if (length<mdb->pg_size) {
fbuf = (unsigned char *) malloc(mdb->fmt->pg_size);
tbuf = (unsigned char *) malloc( (mdb->fmt->pg_size / 16) * 80);
memset(tbuf, 0, (mdb->fmt->pg_size / 16) * 80);
length = read(mdb->f->fd, fbuf, mdb->fmt->pg_size);
if (length<mdb->fmt->pg_size) {
}
i = 0;
while (i<length) {
@@ -191,8 +221,8 @@ gmdb_get_max_page(MdbHandle *mdb)
{
struct stat st;
assert( fstat(mdb->fd, &st)!=-1 );
return st.st_size/mdb->pg_size;
assert( fstat(mdb->f->fd, &st)!=-1 );
return st.st_size/mdb->fmt->pg_size;
}
gchar *
gmdb_val_to_str(GMdbValStr *valstr, gint val)
@@ -293,10 +323,99 @@ GtkTreeIter *node;
gmdb_debug_add_item(store, node, str, offset+1, offset+3);
}
void
gmdb_debug_dissect_row(GtkTreeStore *store, GtkTreeIter *parent, char *fbuf, int offset, int end)
{
gchar str[100];
int bitmask_sz;
int num_cols, var_cols, var_cols_loc, fixed_end, eod_ptr;
int i;
num_cols = fbuf[offset];
snprintf(str, 100, "Num columns: %u", num_cols);
gmdb_debug_add_item(store, parent, str, offset, offset);
bitmask_sz = ((num_cols-1) / 8) + 1;
var_cols_loc = end - bitmask_sz;
var_cols = fbuf[var_cols_loc];
fixed_end = offset + fbuf[var_cols_loc - 1] - 1; /* work even if 0 b/c of EOD */
snprintf(str, 100, "Fixed columns");
gmdb_debug_add_item(store, parent, str, offset + 1, fixed_end);
for (i=0;i<var_cols;i++) {
}
eod_ptr = var_cols_loc - var_cols - 1;
for (i=0;i<var_cols;i++) {
snprintf(str, 100, "Var col %d", var_cols-i);
gmdb_debug_add_item(store, parent, str, offset + fbuf[var_cols_loc - i - 1], offset + fbuf[var_cols_loc - i - 2] - 1);
}
snprintf(str, 100, "End of data (EOD): 0x%02x (%u)", fbuf[eod_ptr], fbuf[eod_ptr]);
gmdb_debug_add_item(store, parent, str, eod_ptr, eod_ptr);
for (i=0;i<var_cols;i++) {
snprintf(str, 100, "Var col %d offset: 0x%02x (%u)", var_cols-i,fbuf[eod_ptr+i+1], fbuf[eod_ptr+i+1]);
gmdb_debug_add_item(store, parent, str, eod_ptr + i + 1, eod_ptr + i + 1);
}
snprintf(str, 100, "Num var cols: %u", var_cols);
gmdb_debug_add_item(store, parent, str, var_cols_loc, var_cols_loc);
snprintf(str, 100, "Null mask");
gmdb_debug_add_item(store, parent, str, var_cols_loc + 1, end);
}
void
gmdb_debug_dissect_leaf_pg(GtkTreeStore *store, char *fbuf, int offset, int len)
{
gchar str[100];
guint32 tdef;
tdef = get_uint32(&fbuf[offset+4]);
snprintf(str, 100, "Parents TDEF page: 0x%06x (%lu)", tdef,tdef);
gmdb_debug_add_item(store, NULL, str, offset+4, offset+7);
snprintf(str, 100, "Previous leaf page: 0x%06x (%lu)", get_uint32(&fbuf[offset+8]),get_uint32(&fbuf[offset+8]));
gmdb_debug_add_item(store, NULL, str, offset+8, offset+11);
snprintf(str, 100, "Next leaf page: 0x%06x (%lu)", get_uint32(&fbuf[offset+12]),get_uint32(&fbuf[offset+12]));
gmdb_debug_add_item(store, NULL, str, offset+12, offset+15);
}
void
gmdb_debug_dissect_data_pg(GtkTreeStore *store, char *fbuf, int offset, int len)
{
gchar str[100];
int num_rows, i, row_start, row_end;
guint32 tdef;
GtkTreeIter *container;
snprintf(str, 100, "Page free space: %u",
get_uint16(&fbuf[offset+2]));
gmdb_debug_add_item(store, NULL, str, offset+2, offset+3);
tdef = get_uint32(&fbuf[offset+4]);
snprintf(str, 100, "Parents TDEF page: 0x%06x (%lu)", tdef,tdef);
gmdb_debug_add_item(store, NULL, str, offset+4, offset+7);
num_rows = get_uint16(&fbuf[offset+8]);
snprintf(str, 100, "Num rows: %u", num_rows);
gmdb_debug_add_item(store, NULL, str, offset+8, offset+9);
for (i=0;i<num_rows;i++) {
row_start = get_uint16(&fbuf[offset+10+(2*i)]);
snprintf(str, 100, "Row %d offset: 0x%02x (%u)",
i+1, row_start, row_start) ;
gmdb_debug_add_item(store, NULL, str, offset+10+(2*i),
offset+10+(2*i)+1);
}
for (i=0;i<num_rows;i++) {
row_start = get_uint16(&fbuf[offset+10+(2*i)]);
if (i==0)
row_end = mdb->fmt->pg_size - 1;
else
row_end = get_uint16(&fbuf[offset+10+(i-1)*2])
& 0x0FFF - 1;
snprintf(str, 100, "Row %d", i+1);
container = gmdb_debug_add_item(store, NULL, str, row_start, row_end);
/* usage pages have parent id of 0 (database) and do not
* follow normal row format */
if (tdef)
gmdb_debug_dissect_row(store, container, fbuf, row_start, row_end);
}
}
void
gmdb_debug_dissect_tabledef_pg(GtkTreeStore *store, char *fbuf, int offset, int len)
{
gchar str[100];
guint32 i, num_idx, num_cols;
guint32 i, num_idx, num_cols, idx_entries;
int newbase;
GtkTreeIter *node, *container;
@@ -321,8 +440,8 @@ GtkTreeIter *node, *container;
snprintf(str, 100, "# of Columns: %u",
get_uint16(&fbuf[offset+25]));
gmdb_debug_add_item(store, NULL, str, offset+25, offset+26);
snprintf(str, 100, "# of Index Entries: %lu",
get_uint32(&fbuf[offset+27]));
idx_entries = get_uint32(&fbuf[offset+27]);
snprintf(str, 100, "# of Index Entries: %lu", idx_entries);
gmdb_debug_add_item(store, NULL, str, offset+27, offset+30);
num_idx = get_uint32(&fbuf[offset+31]);
@@ -361,6 +480,34 @@ GtkTreeIter *node, *container;
node = gmdb_debug_add_item(store, container, str, newbase + 1, newbase + namelen);
newbase += namelen + 1;
}
container = gmdb_debug_add_item(store, NULL, "Index definition 1", -1, -1);
for (i=0;i<num_idx;i++) {
snprintf(str, 100, "Index %d", i+1);
node = gmdb_debug_add_item(store, container, str, newbase+(i*39), newbase+(i*39)+38);
//gmdb_debug_dissect_index2(store, container, fbuf, newbase+(i*39));
}
newbase += num_idx * 39;
container = gmdb_debug_add_item(store, NULL, "Index definition 2", -1, -1);
for (i=0;i<idx_entries;i++) {
snprintf(str, 100, "Index %d", i+1);
node = gmdb_debug_add_item(store, container, str, newbase+(i*20), newbase+(i*20)+19);
}
newbase += idx_entries * 20;
container = gmdb_debug_add_item(store, NULL, "Index Names", -1, -1);
for (i=0;i<idx_entries;i++) {
char *tmpstr;
int namelen;
namelen = fbuf[newbase];
tmpstr = malloc(namelen + 1);
strncpy(tmpstr, &fbuf[newbase+1], namelen);
tmpstr[namelen]=0;
snprintf(str, 100, "Index %d: %s", i+1, tmpstr);
node = gmdb_debug_add_item(store, container, str, newbase+1, newbase+namelen);
free(tmpstr);
newbase += namelen + 1;
}
}
void gmdb_debug_dissect(GtkTreeStore *store, char *fbuf, int offset, int len)
{
@@ -375,7 +522,7 @@ gchar str[100];
//gmdb_debug_dissect_dbpage(store, fbuf, 1, len);
break;
case 0x01:
//gmdb_debug_dissect_dbpage(store, fbuf, 1, len);
gmdb_debug_dissect_data_pg(store, fbuf, 0, len);
break;
case 0x02:
gmdb_debug_dissect_tabledef_pg(store, fbuf, 0, len);
@@ -384,7 +531,7 @@ gchar str[100];
//gmdb_debug_dissect_dbpage(store, fbuf, 1, len);
break;
case 0x04:
//gmdb_debug_dissect_dbpage(store, fbuf, 1, len);
gmdb_debug_dissect_leaf_pg(store, fbuf, 0, len);
break;
}
}