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.\"Generated by db2man.xsl. Don't modify this, modify the source.
.de Sh \" Subsection
.br
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\fB\\$1\fR
.PP
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.de Sp \" Vertical space (when we can't use .PP)
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.de Ip \" List item
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..
.TH "SC_ASN1_FIND_TAG" 3 "" "" "OpenSC API Reference"
.SH NAME
sc_asn1_find_tag \- Find a tag in an ASN.1 stream
.SH "SYNOPSIS"
.PP
.nf
#include <opensc\&.h>
const unsigned char *sc_asn1_find_tag(struct sc_context *ctx,
const unsigned char *buf, size_t buflen,
unsigned int tag_in, size_t *taglen_in);
.fi
.SH "DESCRIPTION"
.PP
This function tries to find an ASN\&.1 tag matching \fItag_in\fR in the buffer pointed to by \fIbuf\fR, which is of size \fIbuflen\fR\&. The buffer should contain a series of ASN\&.1 entries\&.
.SH "RETURN VALUE"
.PP
If the specified tag was not found, NULL is returned\&. If found, the address where it was found is returned, and \fItaglen_in\fR is set to the length of the found tag\&.
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