NAME

       ldns_buffer_limit, ldns_buffer_set_limit, ldns_buffer_capacity, ldns_buffer_set_capacity,
       ldns_buffer_reserve, ldns_buffer_at, ldns_buffer_begin, ldns_buffer_end,
       ldns_buffer_current - buffer limits and pointers

SYNOPSIS

       #include <stdint.h>
       #include <stdbool.h>

       #include <ldns/ldns.h>

       size_t ldns_buffer_limit(const ldns_buffer *buffer);

       void ldns_buffer_set_limit(ldns_buffer *buffer, size_t limit);

       size_t ldns_buffer_capacity(const ldns_buffer *buffer);

       bool ldns_buffer_set_capacity(ldns_buffer *buffer, size_t capacity);

       bool ldns_buffer_reserve(ldns_buffer *buffer, size_t amount);

       uint8_t * ldns_buffer_at(const ldns_buffer *buffer, size_t at);

       uint8_t * ldns_buffer_begin(const ldns_buffer *buffer);

       uint8_t * ldns_buffer_end(const ldns_buffer *buffer);

       uint8_t * ldns_buffer_current(const ldns_buffer *buffer);

DESCRIPTION

       ldns_buffer_limit() returns the maximum size of the buffer \param[in] buffer
              Returns the size

       ldns_buffer_set_limit() changes the buffer's limit.  If the buffer's position is greater
              than the new limit the position is set to the limit.
              buffer: the buffer
              limit: the new limit

       ldns_buffer_capacity() returns the number of bytes the buffer can hold.
              buffer: the buffer
              Returns the number of bytes

       ldns_buffer_set_capacity() changes the buffer's capacity.  The data is reallocated so any
              pointers to the data may become invalid.  The buffer's limit is set to the buffer's
              new capacity.
              buffer: the buffer
              capacity: the capacity to use
              Returns whether this failed or succeeded

       ldns_buffer_reserve() ensures BUFFER can contain at least AMOUNT more bytes.  The buffer's
              capacity is increased if necessary using buffer_set_capacity().

              The buffer's limit is always set to the (possibly increased) capacity.
              buffer: the buffer
              amount: amount to use
              Returns whether this failed or succeeded

       ldns_buffer_at() returns a pointer to the data at the indicated position.
              buffer: the buffer
              at: position
              Returns the pointer to the data

       ldns_buffer_begin() returns a pointer to the beginning of the buffer (the data at position
              0).
              buffer: the buffer
              Returns the pointer

       ldns_buffer_end() returns a pointer to the end of the buffer (the data at the buffer's
              limit).
              buffer: the buffer
              Returns the pointer

       ldns_buffer_current() returns a pointer to the data at the buffer's current position.
              buffer: the buffer
              Returns the pointer

AUTHOR

       The ldns team at NLnet Labs.

REPORTING BUGS

       Please report bugs to ldns-team@nlnetlabs.nl or in our bugzilla at
       http://www.nlnetlabs.nl/bugs/index.html

COPYRIGHT

       Copyright (c) 2004 - 2006 NLnet Labs.

       Licensed under the BSD License. There is NO warranty; not even for MERCHANTABILITY or
       FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO

       ldns_buffer.  And perldoc Net::DNS, RFC1034, RFC1035, RFC4033, RFC4034  and RFC4035.

REMARKS

       This manpage was automatically generated from the ldns source code.

                                           30 May 2006                                    ldns(3)