sc_connect_card.3

读写Smart卡加解密接口的程序

.TH sc_connect_card 3 "April 2003" "OpenSC Programmer's Manual
.SH NAME
sc_connect_card \- connect to smart card in reader
.SH SYNOPSIS
.nf
.B #include <opensc.h>
.sp
.BI "int sc_connect_card(sc_reader_t *" reader ",
.BI "                    int " slot ", sc_card_t **" card ");
.fi
.SH DESCRIPTION
This function connects to a card in a reader, resets the card
and retrieves the ATR (Answer To Reset). Based on the ATR, it
tries to auto-detect which card driver to use.
.PP
The \fIslot\fP parameter identifies the card reader's slot.
Slots are numbered consecutively, starting at \fB0\fP.
.PP
If OpenSC was able to connect to the card, a pointer to the
\fBsc_card_t\fP object is stored in the location pointer to
by the \fIcard\fP parameter. The card handle should be
released with \fBsc_disconnect_card\fP(3) when no longer in used.
.SH RETURN VALUE
If an error occurred, a negative error code is returned, as described
in \fbsc_error\fP(3). Otherwise, the function will return 0.
.SH SEE ALSO
.BR sc_establish_context (3),
.BR sc_disconnect_card (3).
.SH AUTHOR
This manual page was written by Olaf Kirch <[e-mail]>