GPtrArray *mdb_read_catalog (MdbHandle *mdb, int objtype)
{
MdbCatalogEntry *entry, msysobj;
MdbTableDef *table;
char obj_id[256];
char obj_name[256];
char obj_type[256];
char obj_flags[256];
int type;
if (!mdb) return NULL;
if (mdb->catalog) mdb_free_catalog(mdb);
mdb->catalog = g_ptr_array_new();
mdb->num_catalog = 0;
/* dummy up a catalog entry so we may read the table def */
memset(&msysobj, 0, sizeof(MdbCatalogEntry));
msysobj.mdb = mdb;
msysobj.object_type = MDB_TABLE;
msysobj.table_pg = 2;
strcpy(msysobj.object_name, "MSysObjects");
/* mdb_table_dump(&msysobj); */
table = mdb_read_table(&msysobj);
if (!table) return NULL;
mdb_read_columns(table);
mdb_bind_column_by_name(table, "Id", obj_id, NULL);
mdb_bind_column_by_name(table, "Name", obj_name, NULL);
mdb_bind_column_by_name(table, "Type", obj_type, NULL);
mdb_bind_column_by_name(table, "Flags", obj_flags, NULL);
mdb_rewind_table(table);
while (mdb_fetch_row(table)) {
type = atoi(obj_type);
if (objtype==MDB_ANY || type == objtype) {
entry = (MdbCatalogEntry *) g_malloc0(sizeof(MdbCatalogEntry));
entry->mdb = mdb;
strcpy(entry->object_name, obj_name);
entry->object_type = (type & 0x7F);
entry->table_pg = atol(obj_id) & 0x00FFFFFF;
entry->flags = atol(obj_flags);
mdb->num_catalog++;
g_ptr_array_add(mdb->catalog, entry);
}
}
mdb_free_tabledef(table);
return mdb->catalog;
}
void dump_ole(MdbTableDef *table, char *colname, char *sargname)
{
char ole_data[200000];
int len;
MdbSarg sarg;
char *sargcol, *sargop, *sargval;
mdb_bind_column_by_name(table, colname, ole_data, &len);
if (sargname) {
sargcol = strtok(sargname," ");
sargop = strtok(NULL," ");
sargval = strtok(NULL," ");
printf("col %s op %s val %s\n",sargcol,sargop,sargval);
sarg.op = MDB_EQUAL; /* only support = for now, sorry */
strcpy(sarg.value.s, sargval);
mdb_add_sarg_by_name(table, sargcol, &sarg);
}
mdb_rewind_table(table);
while (mdb_fetch_row(table)) {
mdb_buffer_dump(ole_data, 0, len);
printf("---\n");
}
}
int
main(int argc, char **argv)
{
MdbHandle *mdb;
MdbTableDef *table;
char *colname, *tabname;
char *colval;
int colnum;
char *sargname = NULL;
char *updstr = NULL;
char data[255];
int len;
if (argc<4) {
fprintf(stderr,"Usage: %s <file> <table> <sargs> <updstr>\n",argv[0]);
exit(1);
}
mdb = mdb_open(argv[1], MDB_WRITABLE);
tabname = argv[2];
sargname = argv[3];
updstr = g_strdup(argv[4]);
table = mdb_read_table_by_name(mdb, tabname, MDB_TABLE);
if (table) {
mdb_read_columns(table);
mdb_read_indices(table);
printf("updstr %s\n",updstr);
colname = strtok(updstr,"=");
colval = strtok(NULL,"=");
colnum = mdb_bind_column_by_name(table, colname, data, &len);
printf("column %d\n", colnum);
read_to_row(table, sargname);
printf("current value of %s is %s, changing to %s\n", colname, data, colval);
len = strlen(colval);
strcpy(data,colval);
mdb_update_row(table);
mdb_free_tabledef(table);
}
mdb_close(mdb);
return 0;
}
/**
* mdb_get_relationships
* @mdb: Handle to open MDB database file
* @tablename: Name of the table to process. Process all tables if NULL.
*
* Generates relationships by reading the MSysRelationships table.
* 'szColumn' contains the column name of the child table.
* 'szObject' contains the table name of the child table.
* 'szReferencedColumn' contains the column name of the parent table.
* 'szReferencedObject' contains the table name of the parent table.
* 'grbit' contains integrity constraints.
*
* Returns: a string stating that relationships are not supported for the
* selected backend, or a string containing SQL commands for setting up
* the relationship, tailored for the selected backend.
* Returns NULL on last iteration.
* The caller is responsible for freeing this string.
*/
static char *
mdb_get_relationships(MdbHandle *mdb, const gchar *dbnamespace, const char* tablename)
{
unsigned int i;
gchar *text = NULL; /* String to be returned */
static char *bound[5]; /* Bound values */
static MdbTableDef *table; /* Relationships table */
int backend = 0; /* Backends: 1=oracle, 2=postgres */
char *quoted_table_1, *quoted_column_1,
*quoted_table_2, *quoted_column_2,
*constraint_name, *quoted_constraint_name;
long grbit;
if (!strcmp(mdb->backend_name, "oracle")) {
backend = 1;
} else if (!strcmp(mdb->backend_name, "postgres")) {
backend = 2;
} else {
if (is_init == 0) { /* the first time through */
is_init = 1;
return (char *) g_strconcat(
"-- relationships are not implemented for ",
mdb->backend_name, "\n", NULL);
} else { /* the second time through */
is_init = 0;
return NULL;
}
}
if (is_init == 0) {
table = mdb_read_table_by_name(mdb, "MSysRelationships", MDB_TABLE);
if ((!table) || (table->num_rows == 0)) {
fprintf(stderr, "No MSysRelationships\n");
return NULL;
}
mdb_read_columns(table);
for (i=0;i<5;i++) {
bound[i] = (char *) g_malloc0(MDB_BIND_SIZE);
}
mdb_bind_column_by_name(table, "szColumn", bound[0], NULL);
mdb_bind_column_by_name(table, "szObject", bound[1], NULL);
mdb_bind_column_by_name(table, "szReferencedColumn", bound[2], NULL);
mdb_bind_column_by_name(table, "szReferencedObject", bound[3], NULL);
mdb_bind_column_by_name(table, "grbit", bound[4], NULL);
mdb_rewind_table(table);
is_init = 1;
}
else {
if (!table) {
fprintf(stderr, "table is NULL\n");
}
if (table->cur_row >= table->num_rows) { /* past the last row */
for (i=0;i<5;i++)
g_free(bound[i]);
is_init = 0;
return NULL;
}
}
while (1) {
if (!mdb_fetch_row(table)) {
for (i=0;i<5;i++)
g_free(bound[i]);
is_init = 0;
return NULL;
}
if (!tablename || !strcmp(bound[1], tablename))
break;
}
quoted_table_1 = mdb->default_backend->quote_schema_name(dbnamespace, bound[1]);
quoted_column_1 = mdb->default_backend->quote_schema_name(dbnamespace, bound[0]);
quoted_table_2 = mdb->default_backend->quote_schema_name(dbnamespace, bound[3]);
quoted_column_2 = mdb->default_backend->quote_schema_name(dbnamespace, bound[2]);
grbit = atoi(bound[4]);
constraint_name = g_strconcat(bound[1], "_", bound[0], "_fk", NULL);
quoted_constraint_name = mdb->default_backend->quote_schema_name(dbnamespace, constraint_name);
free(constraint_name);
if (grbit & 0x00000002) {
text = g_strconcat(
"-- Relationship from ", quoted_table_1,
" (", quoted_column_1, ")"
" to ", quoted_table_2, "(", quoted_column_2, ")",
" does not enforce integrity.\n", NULL);
} else {
switch (backend) {
case 1: /* oracle */
case 2: /* postgres */
text = g_strconcat(
"ALTER TABLE ", quoted_table_1,
" ADD CONSTRAINT ", quoted_constraint_name,
" FOREIGN KEY (", quoted_column_1, ")"
" REFERENCES ", quoted_table_2, "(", quoted_column_2, ")",
(grbit & 0x00000100) ? " ON UPDATE CASCADE" : "",
(grbit & 0x00001000) ? " ON DELETE CASCADE" : "",
";\n", NULL);
break;
}
}
free(quoted_table_1);
free(quoted_column_1);
free(quoted_table_2);
free(quoted_column_2);
free(quoted_constraint_name);
return (char *)text;
}
int
main(int argc, char **argv)
{
MdbHandle *mdb;
MdbTableDef *table;
gchar name[256];
gchar *propColName;
void *buf;
int col_num;
int found = 0;
if (argc < 3) {
fprintf(stderr,"Usage: %s <file> <object name> [<prop col>]\n",
argv[0]);
return 1;
}
if (argc < 4)
propColName = "LvProp";
else
propColName = argv[3];
mdb_init();
mdb = mdb_open(argv[1], MDB_NOFLAGS);
if (!mdb) {
mdb_exit();
return 1;
}
table = mdb_read_table_by_name(mdb, "MSysObjects", MDB_ANY);
if (!table) {
mdb_close(mdb);
mdb_exit();
return 1;
}
mdb_read_columns(table);
mdb_rewind_table(table);
mdb_bind_column_by_name(table, "Name", name, NULL);
buf = g_malloc(MDB_BIND_SIZE);
col_num = mdb_bind_column_by_name(table, propColName, buf, NULL);
if (col_num < 1) {
g_free(buf);
mdb_free_tabledef(table);
mdb_close(mdb);
mdb_exit();
printf("Column %s not found in MSysObjects!\n", argv[3]);
return 1;
}
while(mdb_fetch_row(table)) {
if (!strcmp(name, argv[2])) {
found = 1;
break;
}
}
if (found) {
MdbColumn *col = g_ptr_array_index(table->columns, col_num-1);
size_t size;
void *kkd = mdb_ole_read_full(mdb, col, &size);
dump_kkd(mdb, kkd, size);
free(kkd);
}
g_free(buf);
mdb_free_tabledef(table);
mdb_close(mdb);
mdb_exit();
return 0;
}