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LEARN ABOUT DEBIAN
ldns_buffer_reserve
ldns(3) Library Functions Manual ldns(3)
NAME
ldns_buffer_limit, ldns_buffer_set_limit, ldns_buffer_capacity, ldns_buffer_set_capacity, ldns_buffer_reserve, ldns_buffer_at, ldns_buf-
fer_begin, ldns_buffer_end, ldns_buffer_current-
SYNOPSIS
#include <stdint.h>
#include <stdbool.h>
#include <ldns/ldns.h>
size_t ldns_buffer_limit(ldns_buffer *buffer);
void ldns_buffer_set_limit(ldns_buffer *buffer, size_t limit);
size_t ldns_buffer_capacity(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(ldns_buffer *buffer);
uint8_t * ldns_buffer_current(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 buf-
fer_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. Which consists out of Jelte Jansen and Miek Gieben.
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 automaticly generated from the ldns source code by use of Doxygen and some perl.
30 May 2006 ldns(3)