SC_WRITE_RECORD(3)           OpenSC API reference           SC_WRITE_RECORD(3)



NAME
       sc_write_record - Write a record to a file

SYNOPSIS
           #include <opensc.h>

           int sc_write_record(struct sc_card *card, unsigned int record,
                               const unsigned char *buf, size_t buflen,
                               unsigned long flags);



DESCRIPTION
       This function writes 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 WRITE RECORD function. Call
       sc_select_file() first to select the file to write to.

       record specifies the ID of the record to be written, or, if flags is
       set to SC_RECORD_BY_REC_NR, the record number. If record is set to
       zero, the current record will be read.

       This function is used for newly created files only; for updating or
       appending to existing files, see the sc_update_record() and
       sc_append_record() functions, respectively.

RETURN VALUE
       Returns the number of bytes written if successful, or a negative value
       in case of error.



opensc                            02/16/2010                SC_WRITE_RECORD(3)
