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Fix bug in read_pg_if_n

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whydoubt 2004-06-11 21:57:19 +00:00
parent 402e6be097
commit 2a6d21ce6d
2 changed files with 11 additions and 9 deletions
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3
ChangeLog
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@ -1,3 +1,6 @@
Fri Jun 11 16:56:06 CDT 200 Jeff Smith <whydoubt@yahoo.com>
* src/libmdb/table.c: Fix bug in read_pg_if_n
Fri Jun 11 08:52:14 CDT 2004 Jeff Smith <whydoubt@yahoo.com>
* src/libmdb/data.c:
* src/libmdb/backend.c:

17
src/libmdb/table.c
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@ -142,18 +142,17 @@ read_pg_if_16(MdbHandle *mdb, int *cur_pos)
guint16
read_pg_if_n(MdbHandle *mdb, unsigned char *buf, int *cur_pos, int len)
{
int half;
if (*cur_pos + len < mdb->fmt->pg_size) {
memcpy(buf, &mdb->pg_buf[*cur_pos], len);
return 0;
} else {
int half = mdb->fmt->pg_size - *cur_pos;
memcpy(buf, &mdb->pg_buf[*cur_pos], half);
mdb_read_pg(mdb, mdb_pg_get_int32(mdb,4));
memcpy(buf + half, &mdb->pg_buf[8], len - half);
*cur_pos = 8 - half;
return 1;
}
half = (mdb->fmt->pg_size - *cur_pos - 1);
memcpy(buf, &mdb->pg_buf[*cur_pos], half);
mdb_read_pg(mdb, mdb_pg_get_int32(mdb,4));
memcpy(buf, &mdb->pg_buf[8], len - half);
*cur_pos = 8 - (mdb->fmt->pg_size - (*cur_pos));
return 1;
}
GPtrArray *mdb_read_columns(MdbTableDef *table)
@ -187,7 +186,7 @@ GPtrArray *mdb_read_columns(MdbTableDef *table)
read_pg_if(mdb, &cur_col, 0);
col.col_type = mdb->pg_buf[cur_col];
read_pg_if(mdb, &cur_col, cur_col + fmt->col_num_offset); // col_num_offset == 1 or 5
read_pg_if(mdb, &cur_col, fmt->col_num_offset); // col_num_offset == 1 or 5
col.col_num = mdb->pg_buf[cur_col + fmt->col_num_offset];
//fprintf(stdout,"----- column %d -----\n",col.col_num);