sc_update_record man page on SuSE

sc_update_record man page on SuSE

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SC_UPDATE_RECORD(3)	     OpenSC API reference	   SC_UPDATE_RECORD(3)

NAME
       sc_update_record - Write a record to an existing file

SYNOPSIS
	   #include <opensc.h>

	   int sc_update_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 UPDATE 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 can be used for overwriting existing records only; for
       appending to files, see the sc_append_record() function.

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

opensc				  08/27/2008		   SC_UPDATE_RECORD(3)

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