Category : C Source Code
Archive   : TC-DBF.ZIP
Filename : D_GETREC.C

/*
** file: d_getrec.c
** purpose: routine to get a record from a dbiii file and place in memory at
** location pointed to by DBF.record_prt.
** ussage: d = (struct DBF *)malloc(sizeof(struct DBF));
** strcpy(d->filename,"filename.dbf");
** d_open(d);
** d_getrec(d,(long)record);
** ... access record as desired ...
** d_close(d);
** free(d);
** notes: compile with "tcc -c d_getrec". include this file in dbf.lib
** see dbf.h for structure of DBF
** returns: 0 if successfull
** RECNO_TOO_BIG if record is not in database
** author: Mark Sadler
** revised: 6/6/87
*/
#include
#include "dbf.h"

int d_getrec(struct DBF *d,unsigned long int r)
{
if(r > d->records)
return(RECNO_TOO_BIG);
if (r > 0L)
{
fseek(d->file_ptr,((long)d->header_length + ((r - 1L) * d->record_length)),0);
fread(d->record_ptr,d->record_length,1,d->file_ptr);
d->current_record = r;
return(0);
}
return(RECNO_TOO_BIG);
}