1SC_ASN1_FIND_TAG(3)          OpenSC API reference          SC_ASN1_FIND_TAG(3)
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NAME

6       sc_asn1_find_tag - Find a tag in an ASN.1 stream
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SYNOPSIS

9          #include <opensc.h>
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11          const unsigned char *sc_asn1_find_tag(struct sc_context *ctx,
12                                                const unsigned char *buf, size_t buflen,
13                                                unsigned int tag_in, size_t *taglen_in);
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DESCRIPTION

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

23       If the specified tag was not found, NULL is returned. If found, the
24       address where it was found is returned, and taglen_in is set to the
25       length of the found tag.
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29opensc                            05/04/2007               SC_ASN1_FIND_TAG(3)
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