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hesiod_getservbyname (3)
  • >> hesiod_getservbyname (3) ( Linux man: Библиотечные вызовы )
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    NAME

    hesiod_getservbyname, hesiod_free_servent - Hesiod functions for retrieving service information
     
    

    SYNOPSIS

    #include <hesiod.h>
    
    struct servent *hesiod_getservbyname(void *context,
    const char *name, const char *proto)
    void hesiod_free_servent(void *context, struct servent *serv)
    
    cc file.c -lhesiod
    
     

    DESCRIPTION

    This family of functions allows you to retrieve service to port mappings using Hesiod. To perform lookups, you need an initialized Hesiod context; see hesiod(3) for details. Information is returned in the same format as by getservbyname. It is the caller's responsibility to call hesiod_free_servent with the returned service entry to free the resources used by the service entry.

    Hesiod queries for service information are made using the ``service'' Hesiod type, using the service name as the Hesiod name. The corresponding records should be space-separated lists of strings giving the service name, protocol, port number (in decimal), and zero or more aliases for the service. There may be multiple records per service name; hesiod_getservbyname will pick the first one whose protocol matches proto.  

    RETURN VALUES

    On failure, hesiod_getservbyname returns NULL and sets the global variable errno to indicate the error.  

    ERRORS

    hesiod_getservbyname may fail for any of the reasons the routine hesiod_resolve may fail.  

    SEE ALSO

    hesiod(3)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    ERRORS
    SEE ALSO


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