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Bounds check mdb_bind_column()

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Return -1 to report out of bounds column number.
This commit is contained in:
James Woodcock 2020-10-24 13:27:34 +01:00
parent ebf999f8c3
commit a7885f2680
2 changed files with 20 additions and 9 deletions
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2
include/mdbtools.h
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@ -509,7 +509,7 @@ void mdb_data_dump(MdbTableDef *table);
void mdb_date_to_tm(double td, struct tm *t);
void mdb_tm_to_date(struct tm *t, double *td);
char *mdb_uuid_to_string(const void *buf, int start);
void mdb_bind_column(MdbTableDef *table, int col_num, void *bind_ptr, int *len_ptr);
int mdb_bind_column(MdbTableDef *table, int col_num, void *bind_ptr, int *len_ptr);
int mdb_rewind_table(MdbTableDef *table);
int mdb_fetch_row(MdbTableDef *table);
int mdb_is_fixed_col(MdbColumn *col);

27
src/libmdb/data.c
View File

@ -73,20 +73,31 @@ void mdb_set_boolean_fmt_words(MdbHandle *mdb)
mdb->boolean_true_value = boolean_true_word;
}
void mdb_bind_column(MdbTableDef *table, int col_num, void *bind_ptr, int *len_ptr)
int mdb_bind_column(MdbTableDef *table, int col_num, void *bind_ptr, int *len_ptr)
{
MdbColumn *col;
MdbColumn *col = NULL;
/*
** the column arrary is 0 based, so decrement to get 1 based parameter
*/
col=g_ptr_array_index(table->columns, col_num - 1);
if (bind_ptr)
col->bind_ptr = bind_ptr;
if (len_ptr)
col->len_ptr = len_ptr;
col_num--;
if (col_num >= 0 && col_num < (int)table->num_cols) {
col=g_ptr_array_index(table->columns, col_num);
if (col) {
if (bind_ptr)
col->bind_ptr = bind_ptr;
if (len_ptr)
col->len_ptr = len_ptr;
return 0;
}
}
return -1;
}
int
mdb_bind_column_by_name(MdbTableDef *table, gchar *col_name, void *bind_ptr, int *len_ptr)
{