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.\"Generated by db2man.xsl. Don't modify this, modify the source.
.de Sh \" Subsection
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.PP
\fB\\$1\fR
.PP
..
.de Sp \" Vertical space (when we can't use .PP)
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.de Ip \" List item
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.TH "SC_GET_DATA" 3 "" "" "OpenSC API Reference"
.SH NAME
sc_get_data \- Get a primitive data object from a card
.SH "SYNOPSIS"
.PP
.nf
#include <opensc\&.h>
int sc_get_data(sc_card_t *card, unsigned int tag,
unsigned char *buf, size_t buflen);
.fi
.SH "DESCRIPTION"
.PP
This function is used to retrieve a primitive data object from\fIcard\fR\&. It corresponds to the GET DATA command in theISO 7816 standard\&. The data is stored in\fIbuf\fR, which is \fIbuflen\fR bytes long\&.
.PP
The \fItag\fR parameter specifies the object to be retrieved\&. Refer to the standard for the correct values to use\&.
.SH "RETURN VALUE"
.PP
Returns 0 if successful, or a negative value in case of error\&.
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