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patches 00-14 from David Mansfield

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This commit is contained in:
brianb
2004-01-06 00:42:07 +00:00
parent 8592cf5db5
commit 11b43644dc
12 changed files with 293 additions and 166 deletions
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39
src/libmdb/table.c
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@@ -157,14 +157,14 @@ read_pg_if_n(MdbHandle *mdb, unsigned char *buf, int *cur_pos, int len)
GPtrArray *mdb_read_columns(MdbTableDef *table)
{
MdbHandle *mdb = table->entry->mdb;
MdbFormatConstants *fmt = mdb->fmt;
MdbColumn col, *pcol;
int len, i,j;
unsigned char low_byte, high_byte;
int cur_col, cur_name;
int name_sz;
GSList *slist = NULL;
MdbHandle *mdb = table->entry->mdb;
MdbFormatConstants *fmt = mdb->fmt;
MdbColumn col, *pcol;
int len, i,j;
unsigned char low_byte, high_byte;
int cur_col, cur_name;
int name_sz;
GSList *slist = NULL;
table->columns = g_ptr_array_new();
@@ -182,23 +182,28 @@ GSList *slist = NULL;
buffer_dump(mdb->pg_buf, cur_col ,cur_col + 18); */
#endif
memset(&col, 0, sizeof(col));
col.col_num = mdb->pg_buf[cur_col + fmt->col_num_offset];
read_pg_if(mdb, &cur_col, 0);
col.col_type = mdb->pg_buf[cur_col];
read_pg_if(mdb, &cur_col, fmt->col_num_offset); // col_num_offset == 1
col.col_num = mdb->pg_buf[cur_col + fmt->col_num_offset];
/* FIXME: can this be right in Jet3 and Jet4? */
if (col.col_type == MDB_NUMERIC) {
read_pg_if(mdb, &cur_col, 11);
col.col_prec = mdb->pg_buf[cur_col + 11];
read_pg_if(mdb, &cur_col, 12);
col.col_scale = mdb->pg_buf[cur_col + 12];
}
read_pg_if(mdb, &cur_col, 13);
read_pg_if(mdb, &cur_col, fmt->col_fixed_offset); // col_fixed_offset == 13 or 15
col.is_fixed = mdb->pg_buf[cur_col + fmt->col_fixed_offset] &
0x01 ? 1 : 0;
0x01 ? 1 : 0;
if (col.col_type != MDB_BOOL) {
read_pg_if(mdb, &cur_col, 17);
read_pg_if(mdb, &cur_col, fmt->col_size_offset); // col_size_offset == 16 or 23
low_byte = mdb->pg_buf[cur_col + fmt->col_size_offset];
read_pg_if(mdb, &cur_col, 18);
read_pg_if(mdb, &cur_col, fmt->col_size_offset + 1);
high_byte = mdb->pg_buf[cur_col + fmt->col_size_offset + 1];
col.col_size += high_byte * 256 + low_byte;
} else
@@ -239,13 +244,13 @@ GSList *slist = NULL;
/* read the next pg */
mdb_read_pg(mdb, mdb_pg_get_int32(mdb,4));
cur_name = 8 - (fmt->pg_size - cur_name);
if (len % 2) cur_name++;
/* get the rest of the name */
for (j=0;j<len;j+=2) {
for (j=len;j<name_sz;j++) {
if (!(j%2))
pcol->name[j/2] = mdb->pg_buf[cur_name + j];
}
memcpy(&pcol->name[len], &mdb->pg_buf[cur_name], name_sz - len);
}
pcol->name[name_sz]='\0';
pcol->name[name_sz/2]='\0';
cur_name += name_sz;
} else if (IS_JET3(mdb)) {