int
WriteNativeFieldList(FieldList list,
FILE *file)
{
long num_fields; /* number of fields */
long i; /* loop index */
if (file == NULL)
{
DebugMsg(1, "WriteNativeFieldList: NULL file pointer.");
return FALSE;
}
num_fields = FieldListLength(list);
if (fwrite(&num_fields, sizeof(long), 1, file) != 1)
{
DebugMsg(1, "WriteNativeFieldList: couldn't write number of fields.");
return FALSE;
}
for (i = 0; i < num_fields; i++)
if (!WriteNativeFieldSpec(list[i], file))
{
DebugMsg(2, "WriteNativeFieldList: couldn't write field spec.");
return FALSE;
}
return TRUE; /* Success. */
}
int
AddField(FieldList *list, /* variable containing field list */
FieldSpec *field) /* specification of field */
{
int n; /* length of list */
FieldList new_list; /* new field list */
/* Check for bad argument. */
if (field == NULL || list == NULL)
return FALSE;
/* Extend list with 1 new pointer plus terminating NULL. */
if (*list == NULL)
{
n = 0;
new_list = (FieldList) malloc(2 * sizeof(**list));
}
else
{
n = FieldListLength(*list);
new_list = (FieldList) realloc(*list, (n+2) * sizeof(**list));
}
if (new_list == NULL) /* Allocation failure. */
return FALSE;
new_list[n] = field;
new_list[n+1] = NULL;
*list = new_list;
return TRUE;
}