NAME
sc_append_record - Append a record to a file
SYNOPSIS
#include <opensc.h>
int sc_append_record(struct sc_card *card,
const unsigned char *buf, size_t buflen,
unsigned long flags);
DESCRIPTION
This function appends a record that is buflen bytes long from the
buffer pointed to by buf to a record-structured elementary file (EF) on
card. The function corresponds to the ISO 7816 APPEND RECORD function.
Call sc_select_file() first to select the file to write to.
RETURN VALUE
Returns the number of bytes written if successful, or a negative value
in case of error.