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ldap_matchingrule2str ()
  • >> ldap_matchingrule2str (3) ( Разные man: Библиотечные вызовы )
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    NAME

    ldap_str2syntax, ldap_syntax2str, ldap_syntax2name, ldap_syntax_free,
    ldap_str2matchingrule, ldap_matchingrule2str, ldap_matchingrule2name,
    ldap_matchingrule_free,
    ldap_str2attributetype, ldap_attributetype2str,
    ldap_attributetype2name, ldap_attributetype_free,
    ldap_str2objectclass, ldap_objectclass2str, ldap_objectclass2name,
    ldap_objectclass_free,
    ldap_scherr2str - Schema definition handling routines
     
    

    LIBRARY

    OpenLDAP LDAP (libldap, -lldap)
     
    

    SYNOPSIS

    #include <ldap.h>
    #include <ldap_schema.h>
    
    LDAPSyntax * ldap_str2syntax(s, code, errp, flags)
    const char * s;
    int * code;
    const char ** errp;
    const int flags;
    
    char * ldap_syntax2str(syn)
    const LDAPSyntax * syn;
    
    const char * ldap_syntax2name(syn)
    LDAPSyntax * syn;
    
    ldap_syntax_free(syn)
    LDAPSyntax * syn;
    
    LDAPMatchingRule * ldap_str2matchingrule(s, code, errp, flags)
    const char * s;
    int * code;
    const char ** errp;
    const int flags;
    
    char * ldap_matchingrule2str(mr);
    const LDAPMatchingRule * mr;
    
    const char * ldap_matchingrule2name(mr)
    LDAPMatchingRule * mr;
    
    ldap_matchingrule_free(mr)
    LDAPMatchingRule * mr;
    
    LDAPAttributeType * ldap_str2attributetype(s, code, errp, flags)
    const char * s;
    int * code;
    const char ** errp;
    const int flags;
    
    char * ldap_attributetype2str(at)
    const LDAPAttributeType * at;
    
    const char * ldap_attributetype2name(at)
    LDAPAttributeType * at;
    
    ldap_attributetype_free(at)
    LDAPAttributeType * at;
    
    LDAPObjectClass * ldap_str2objectclass(s, code, errp, flags)
    const char * s;
    int * code;
    const char ** errp;
    const int flags;
    
    char * ldap_objectclass2str(oc)
    const LDAPObjectClass * oc;
    
    const char * ldap_objectclass2name(oc)
    LDAPObjectClass * oc;
    
    ldap_objectclass_free(oc)
    LDAPObjectClass * oc;
    
    char * ldap_scherr2str(code)
    int code;
    
     

    DESCRIPTION

    These routines are used to parse schema definitions in the syntax defined in RFC 2252 into structs and handle these structs. These routines handle four kinds of definitions: syntaxes, matching rules, attribute types and object classes. For each definition kind, four routines are provided.

    ldap_str2xxx() takes a definition in RFC 2252 format in argument s as a NUL-terminated string and returns, if possible, a pointer to a newly allocated struct of the appropriate kind. The caller is responsible for freeing the struct by calling ldap_xxx_free() when not needed any longer. The routine returns NULL if some problem happened. In this case, the integer pointed at by argument code will receive an error code (see below the description of ldap_scherr2str() for an explanation of the values) and a pointer to a NUL-terminated string will be placed where requested by argument errp , indicating where in argument s the error happened, so it must not be freed by the caller. Argument flags is a bit mask of parsing options controlling the relaxation of the syntax recognized. The following values are defined:

    LDAP_SCHEMA_ALLOW_NONE
    strict parsing according to RFC 2252.
    LDAP_SCHEMA_ALLOW_NO_OID
    permit definitions that do not contain an initial OID.
    LDAP_SCHEMA_ALLOW_QUOTED
    permit quotes around some items that should not have them.
    LDAP_SCHEMA_ALLOW_DESCR
    permit a descr instead of a numeric OID in places where the syntax expect the latter.
    LDAP_SCHEMA_ALLOW_DESCR_PREFIX
    permit that the initial numeric OID contains a prefix in descr format.
    LDAP_SCHEMA_ALLOW_ALL
    be very liberal, include all options.

    The structures returned are as follows:

    
    typedef struct ldap_schema_extension_item {
            char *lsei_name;        /* Extension name */
            char **lsei_values;     /* Extension values */
    } LDAPSchemaExtensionItem;
    
    typedef struct ldap_syntax {
            char *syn_oid;          /* OID */
            char **syn_names;       /* Names */
            char *syn_desc;         /* Description */
            LDAPSchemaExtensionItem **syn_extensions; /* Extension */
    } LDAPSyntax;
    
    typedef struct ldap_matchingrule {
            char *mr_oid;           /* OID */
            char **mr_names;        /* Names */
            char *mr_desc;          /* Description */
            int  mr_obsolete;       /* Is obsolete? */
            char *mr_syntax_oid;    /* Syntax of asserted values */
            LDAPSchemaExtensionItem **mr_extensions; /* Extensions */
    } LDAPMatchingRule;
    
    typedef struct ldap_attributetype {
            char *at_oid;           /* OID */
            char **at_names;        /* Names */
            char *at_desc;          /* Description */
            int  at_obsolete;       /* Is obsolete? */
            char *at_sup_oid;       /* OID of superior type */
            char *at_equality_oid;  /* OID of equality matching rule */
            char *at_ordering_oid;  /* OID of ordering matching rule */
            char *at_substr_oid;    /* OID of substrings matching rule */
            char *at_syntax_oid;    /* OID of syntax of values */
            int  at_syntax_len;     /* Suggested minimum maximum length */
            int  at_single_value;   /* Is single-valued?  */
            int  at_collective;     /* Is collective? */
            int  at_no_user_mod;    /* Are changes forbidden through LDAP? */
            int  at_usage;          /* Usage, see below */
            LDAPSchemaExtensionItem **at_extensions; /* Extensions */
    } LDAPAttributeType;
    
    typedef struct ldap_objectclass {
            char *oc_oid;           /* OID */
            char **oc_names;        /* Names */
            char *oc_desc;          /* Description */
            int  oc_obsolete;       /* Is obsolete? */
            char **oc_sup_oids;     /* OIDs of superior classes */
            int  oc_kind;           /* Kind, see below */
            char **oc_at_oids_must; /* OIDs of required attribute types */
            char **oc_at_oids_may;  /* OIDs of optional attribute types */
            LDAPSchemaExtensionItem **oc_extensions; /* Extensions */
    } LDAPObjectClass;
    
    

    Some integer fields (those described with a question mark) have a truth value, for these fields the possible values are:

    LDAP_SCHEMA_NO
    The answer to the question is no.
    LDAP_SCHEMA_YES
    The answer to the question is yes.

    For attribute types, the following usages are possible:

    LDAP_SCHEMA_USER_APPLICATIONS
    the attribute type is non-operational.
    LDAP_SCHEMA_DIRECTORY_OPERATION
    the attribute type is operational and is pertinent to the directory itself, i.e. it has the same value on all servers that master the entry containing this attribute type.
    LDAP_SCHEMA_DISTRIBUTED_OPERATION
    the attribute type is operational and is pertinent to replication, shadowing or other distributed directory aspect. TBC.
    LDAP_SCHEMA_DSA_OPERATION
    the attribute type is operational and is pertinent to the directory server itself, i.e. it may have different values for the same entry when retrieved from different servers that master the entry.

    Object classes can be of three kinds:

    LDAP_SCHEMA_ABSTRACT
    the object class is abstract, i.e. there cannot be entries of this class alone.
    LDAP_SCHEMA_STRUCTURAL
    the object class is structural, i.e. it describes the main role of the entry. On some servers, once the entry is created the set of structural object classes assigned cannot be changed: none of those present can be removed and none other can be added.
    LDAP_SCHEMA_AUXILIARY
    the object class is auxiliary, i.e. it is intended to go with other, structural, object classes. These can be added or removed at any time if attribute types are added or removed at the same time as needed by the set of object classes resulting from the operation.

    Routines ldap_xxx2name() return a canonical name for the definition.

    Routines ldap_xxx2str() return a string representation in the format described by RFC 2252 of the struct passed in the argument. The string is a newly allocated string that must be freed by the caller. These routines may return NULL if no memory can be allocated for the string.

    ldap_scherr2str() returns a NUL-terminated string with a text description of the error found. This is a pointer to a static area, so it must not be freed by the caller. The argument code comes from one of the parsing routines and can adopt the following values:

    LDAP_SCHERR_OUTOFMEM
    Out of memory.
    LDAP_SCHERR_UNEXPTOKEN
    Unexpected token.
    LDAP_SCHERR_NOLEFTPAREN
    Missing opening parenthesis.
    LDAP_SCHERR_NORIGHTPAREN
    Missing closing parenthesis.
    LDAP_SCHERR_NODIGIT
    Expecting digit.
    LDAP_SCHERR_BADNAME
    Expecting a name.
    LDAP_SCHERR_BADDESC
    Bad description.
    LDAP_SCHERR_BADSUP
    Bad superiors.
    LDAP_SCHERR_DUPOPT
    Duplicate option.
    LDAP_SCHERR_EMPTY
    Unexpected end of data.

     

    SEE ALSO

    ldap(3)  

    ACKNOWLEDGEMENTS

    OpenLDAP is developed and maintained by The OpenLDAP Project (http://www.openldap.org/). OpenLDAP is derived from University of Michigan LDAP 3.3 Release.


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    SEE ALSO
    ACKNOWLEDGEMENTS


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