sc_asn1_find_tag

Langue: en

Autres versions - même langue

Version: 02/26/2009 (fedora - 06/07/09)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

sc_asn1_find_tag - Find a tag in an ASN.1 stream

SYNOPSIS

 #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);

DESCRIPTION

This function tries to find an ASN.1 tag matching tag_in in the buffer pointed to by buf, which is of size buflen. The buffer should contain a series of ASN.1 entries.

RETURN VALUE

If the specified tag was not found, NULL is returned. If found, the address where it was found is returned, and taglen_in is set to the length of the found tag.