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fix for flag 0x0000 memo fields

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This commit is contained in:
brianb
2002-05-01 18:26:41 +00:00
parent b8bb42ae2b
commit 03a3fe4f6d
2 changed files with 37 additions and 1 deletions
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2
include/mdbtools.h
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@@ -35,7 +35,7 @@
#define MDB_MAX_IDX_COLS 10
#define MDB_CATALOG_PG 18
#define MDB_MEMO_OVERHEAD 12
#define MDB_BIND_SIZE 2048
#define MDB_BIND_SIZE 4096
enum {
MDB_VER_JET3 = 0,

36
src/libmdb/data.c
View File

@@ -444,6 +444,42 @@ guint16 len;
/* make sure to swap page back */
mdb_swap_pgbuf(mdb);
return text;
} else if (memo_flags == 0x0000) {
memo_row = mdb->pg_buf[start+4];
lval_pg = mdb_get_int24(mdb, start+5);
#if MDB_DEBUG
printf("Reading LVAL page %06x\n", lval_pg);
#endif
/* swap the alt and regular page buffers, so we can call get_int16 */
mdb_swap_pgbuf(mdb);
text[0]='\0';
do {
if(mdb_read_pg(mdb, lval_pg) != mdb->pg_size) {
/* Failed to read */
return "";
}
if (memo_row) {
row_stop = mdb_get_int16(mdb, 10 + (memo_row - 1) * 2) & 0x0FFF;
} else {
row_stop = mdb->pg_size - 1;
}
row_start = mdb_get_int16(mdb, 10 + memo_row * 2);
#if MDB_DEBUG
printf("row num %d row start %d row stop %d\n", memo_row, row_start, row_stop);
#endif
len = row_stop - row_start;
strncat(text, &mdb->pg_buf[row_start+4],
strlen(text) + len - 4 > MDB_BIND_SIZE ?
MDB_BIND_SIZE - strlen(text) :
len - 4);
/* find next lval page */
memo_row = mdb->pg_buf[row_start];
lval_pg = mdb_get_int24(mdb, row_start+1);
} while (lval_pg);
/* make sure to swap page back */
mdb_swap_pgbuf(mdb);
return text;
} else {
fprintf(stderr,"Unhandled memo field flags = %04x\n", memo_flags);
return "";