The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
asn1_parser2tree – API function Synopsis#include <libtasn1.h> int asn1_parser2tree(const char * file, asn1_node * definitions, char * error_desc); Argumentsconst char * file specify the path and the name of file that contains ASN.1 declarations. asn1_node * definitions return the pointer to the structure created from "file" ASN.1 declarations. char * error_desc return the error description or…
asn1_parser2array – API function Synopsis#include <libtasn1.h> int asn1_parser2array(const char * inputFileName, const char * outputFileName, const char * vectorName, char * error_desc); Argumentsconst char * inputFileName specify the path and the name of file that contains ASN.1 declarations. const char * outputFileName specify the path and the name of file that will contain the C…
asn1_octet_der – API function Synopsis#include <libtasn1.h> void asn1_octet_der(const unsigned char * str, int str_len, unsigned char * der, int * der_len); Argumentsconst unsigned char * str the input data. int str_len STR length (str[0]..str[*str_len-1]). unsigned char * der encoded string returned. int * der_len number of meaningful bytes of DER (der[0]..der[der_len-1]).DescriptionCreates a length-value DER encoding…
asn1_number_of_elements – API function Synopsis#include <libtasn1.h> int asn1_number_of_elements(asn1_node element, const char * name, int * num); Argumentsasn1_node element pointer to the root of an ASN1 structure. const char * name the name of a sub-structure of ROOT. int * num pointer to an integer where the result will be storedDescriptionCounts the number of elements of…
asn1_length_der – API function Synopsis#include <libtasn1.h> void asn1_length_der(unsigned long int len, unsigned char * der, int * der_len); Argumentsunsigned long int len value to convert. unsigned char * der buffer to hold the returned encoding (may be NULL). int * der_len number of meaningful bytes of ANS (der[0]..der[der_len-1]).DescriptionCreates the DER encoding of the provided length…
asn1_get_tag_der – API function Synopsis#include <libtasn1.h> int asn1_get_tag_der(const unsigned char * der, int der_len, unsigned char * cls, int * len, unsigned long * tag); Argumentsconst unsigned char * der DER data to decode. int der_len Length of DER data to decode. unsigned char * cls Output variable containing decoded class. int * len Output…
asn1_get_octet_der – API function Synopsis#include <libtasn1.h> int asn1_get_octet_der(const unsigned char * der, int der_len, int * ret_len, unsigned char * str, int str_size, int * str_len); Argumentsconst unsigned char * der DER data to decode containing the OCTET SEQUENCE. int der_len The length of the der data to decode. int * ret_len Output variable containing…
asn1_get_object_id_der – API function Synopsis#include <libtasn1.h> int asn1_get_object_id_der(const unsigned char * der, int der_len, int * ret_len, char * str, int str_size); Argumentsconst unsigned char * der DER data to decode containing the OBJECT IDENTIFIER int der_len Length of DER data to decode. int * ret_len Output variable containing the length of the DER data….
asn1_get_length_der – API function Synopsis#include <libtasn1.h> long asn1_get_length_der(const unsigned char * der, int der_len, int * len); Argumentsconst unsigned char * der DER data to decode. int der_len Length of DER data to decode. int * len Output variable containing the length of the DER length field.DescriptionExtract a length field from DER data. ReturnsReturn the…
asn1_get_length_ber – API function Synopsis#include <libtasn1.h> long asn1_get_length_ber(const unsigned char * ber, int ber_len, int * len); Argumentsconst unsigned char * ber BER data to decode. int ber_len Length of BER data to decode. int * len Output variable containing the length of the BER length field.DescriptionExtract a length field from BER data. The difference…
asn1_get_bit_der – API function Synopsis#include <libtasn1.h> int asn1_get_bit_der(const unsigned char * der, int der_len, int * ret_len, unsigned char * str, int str_size, int * bit_len); Argumentsconst unsigned char * der DER data to decode containing the BIT SEQUENCE. int der_len Length of DER data to decode. int * ret_len Output variable containing the length…
asn1_find_structure_from_oid – API function Synopsis#include <libtasn1.h> const char * asn1_find_structure_from_oid(asn1_node definitions, const char * oidValue); Argumentsasn1_node definitions ASN1 definitions const char * oidValue value of the OID to search (e.g. "1.2.3.4").DescriptionSearch the structure that is defined just after an OID definition. ReturnsNULL when oidValue not found, otherwise the pointer to a constant string that contains…
asn1_find_node – API function Synopsis#include <libtasn1.h> asn1_node asn1_find_node(asn1_node pointer, const char * name); Argumentsasn1_node pointer NODE_ASN element pointer. const char * name null terminated string with the element’s name to find.DescriptionSearches for an element called name starting from pointer . The name is composed by differents identifiers separated by dots. When * pointer has a…
asn1_expand_octet_string – API function Synopsis#include <libtasn1.h> int asn1_expand_octet_string(asn1_node definitions, asn1_node * element, const char * octetName, const char * objectName); Argumentsasn1_node definitions ASN1 definitions asn1_node * element pointer to an ASN1 structure const char * octetName name of the OCTECT STRING field to expand. const char * objectName name of the OBJECT IDENTIFIER field to…
asn1_expand_any_defined_by – API function Synopsis#include <libtasn1.h> int asn1_expand_any_defined_by(asn1_node definitions, asn1_node * element); Argumentsasn1_node definitions ASN1 definitions asn1_node * element pointer to an ASN1 structureDescriptionExpands every "ANY DEFINED BY" element of a structure created from a DER decoding process (asn1_der_decoding function). The element ANY must be defined by an OBJECT IDENTIFIER. The type used to expand…
asn1_encode_simple_der – API function Synopsis#include <libtasn1.h> int asn1_encode_simple_der(unsigned int etype, const unsigned char * str, unsigned int str_len, unsigned char * tl, unsigned int * tl_len); Argumentsunsigned int etype The type of the string to be encoded (ASN1_ETYPE_) const unsigned char * str the string data. unsigned int str_len the string length unsigned char *…
asn1_dup_node – API function Synopsis#include <libtasn1.h> asn1_node asn1_dup_node(asn1_node src, const char * src_name); Argumentsasn1_node src Source asn1 node. const char * src_name Field name in source node.DescriptionCreate a deep copy of a asn1_node variable. This function will return an exact copy of the provided structure. ReturnsReturn NULL on failure. CopyrightCopyright © 2006-2015 Free Software Foundation,…
asn1_der_decoding_startEnd – API function Synopsis#include <libtasn1.h> int asn1_der_decoding_startEnd(asn1_node element, const void * ider, int ider_len, const char * name_element, int * start, int * end); Argumentsasn1_node element pointer to an ASN1 element const void * ider vector that contains the DER encoding. int ider_len number of bytes of * ider : ider [0].. ider [len-1]…
asn1_der_decoding_element – API function Synopsis#include <libtasn1.h> int asn1_der_decoding_element(asn1_node * structure, const char * elementName, const void * ider, int len, char * errorDescription); Argumentsasn1_node * structure pointer to an ASN1 structure const char * elementName name of the element to fill const void * ider vector that contains the DER encoding of the whole structure….
asn1_der_decoding2 – API function Synopsis#include <libtasn1.h> int asn1_der_decoding2(asn1_node * element, const void * ider, int * max_ider_len, unsigned int flags, char * errorDescription); Argumentsasn1_node * element pointer to an ASN1 structure. const void * ider vector that contains the DER encoding. int * max_ider_len pointer to an integer giving the information about the maximal number…