Network Routines
[Apache Portability Runtime library]


Modules

 Socket option definitions
 IP Protocol Definitions for use when creating sockets

Data Structures

struct  apr_sockaddr_t
struct  apr_hdtr_t

Defines

#define APR_MAX_SECS_TO_LINGER   30
#define MAX_SECS_TO_LINGER   APR_MAX_SECS_TO_LINGER
#define APRMAXHOSTLEN   256
#define APR_ANYADDR   "0.0.0.0"
#define APR_IPV4_ADDR_OK   0x01
#define APR_IPV6_ADDR_OK   0x02
#define APR_INET   AF_INET
#define APR_UNSPEC   0
#define APR_INET6   AF_INET6
#define apr_inet_addr   inet_addr
#define APR_SENDFILE_DISCONNECT_SOCKET   1

Typedefs

typedef apr_socket_t apr_socket_t
typedef apr_hdtr_t apr_hdtr_t
typedef in_addr apr_in_addr_t
typedef apr_ipsubnet_t apr_ipsubnet_t
typedef apr_uint16_t apr_port_t
typedef apr_sockaddr_t apr_sockaddr_t

Enumerations

enum  apr_shutdown_how_e { APR_SHUTDOWN_READ, APR_SHUTDOWN_WRITE, APR_SHUTDOWN_READWRITE }
enum  apr_interface_e { APR_LOCAL, APR_REMOTE }

Functions

apr_status_t apr_socket_create (apr_socket_t **new_sock, int family, int type, apr_pool_t *cont)
apr_status_t apr_socket_create_ex (apr_socket_t **new_sock, int family, int type, int protocol, apr_pool_t *cont)
apr_status_t apr_socket_shutdown (apr_socket_t *thesocket, apr_shutdown_how_e how)
apr_status_t apr_shutdown (apr_socket_t *thesocket, apr_shutdown_how_e how)
apr_status_t apr_socket_close (apr_socket_t *thesocket)
apr_status_t apr_socket_bind (apr_socket_t *sock, apr_sockaddr_t *sa)
apr_status_t apr_bind (apr_socket_t *sock, apr_sockaddr_t *sa)
apr_status_t apr_socket_listen (apr_socket_t *sock, apr_int32_t backlog)
apr_status_t apr_listen (apr_socket_t *sock, apr_int32_t backlog)
apr_status_t apr_socket_accept (apr_socket_t **new_sock, apr_socket_t *sock, apr_pool_t *connection_pool)
apr_status_t apr_accept (apr_socket_t **new_sock, apr_socket_t *sock, apr_pool_t *connection_pool)
apr_status_t apr_socket_connect (apr_socket_t *sock, apr_sockaddr_t *sa)
apr_status_t apr_connect (apr_socket_t *sock, apr_sockaddr_t *sa)
apr_status_t apr_sockaddr_info_get (apr_sockaddr_t **sa, const char *hostname, apr_int32_t family, apr_port_t port, apr_int32_t flags, apr_pool_t *p)
apr_status_t apr_getnameinfo (char **hostname, apr_sockaddr_t *sa, apr_int32_t flags)
apr_status_t apr_parse_addr_port (char **addr, char **scope_id, apr_port_t *port, const char *str, apr_pool_t *p)
apr_status_t apr_gethostname (char *buf, int len, apr_pool_t *cont)
apr_status_t apr_socket_data_get (void **data, const char *key, apr_socket_t *sock)
apr_status_t apr_socket_data_set (apr_socket_t *sock, void *data, const char *key, apr_status_t(*cleanup)(void *))
apr_status_t apr_socket_send (apr_socket_t *sock, const char *buf, apr_size_t *len)
apr_status_t apr_send (apr_socket_t *sock, const char *buf, apr_size_t *len)
apr_status_t apr_socket_sendv (apr_socket_t *sock, const struct iovec *vec, apr_int32_t nvec, apr_size_t *len)
apr_status_t apr_sendv (apr_socket_t *sock, const struct iovec *vec, apr_int32_t nvec, apr_size_t *len)
apr_status_t apr_socket_sendto (apr_socket_t *sock, apr_sockaddr_t *where, apr_int32_t flags, const char *buf, apr_size_t *len)
apr_status_t apr_sendto (apr_socket_t *sock, apr_sockaddr_t *where, apr_int32_t flags, const char *buf, apr_size_t *len)
apr_status_t apr_socket_recvfrom (apr_sockaddr_t *from, apr_socket_t *sock, apr_int32_t flags, char *buf, apr_size_t *len)
apr_status_t apr_recvfrom (apr_sockaddr_t *from, apr_socket_t *sock, apr_int32_t flags, char *buf, apr_size_t *len)
apr_status_t apr_socket_sendfile (apr_socket_t *sock, apr_file_t *file, apr_hdtr_t *hdtr, apr_off_t *offset, apr_size_t *len, apr_int32_t flags)
apr_status_t apr_sendfile (apr_socket_t *sock, apr_file_t *file, apr_hdtr_t *hdtr, apr_off_t *offset, apr_size_t *len, apr_int32_t flags)
apr_status_t apr_socket_recv (apr_socket_t *sock, char *buf, apr_size_t *len)
apr_status_t apr_recv (apr_socket_t *sock, char *buf, apr_size_t *len)
apr_status_t apr_socket_opt_set (apr_socket_t *sock, apr_int32_t opt, apr_int32_t on)
apr_status_t apr_setsocketopt (apr_socket_t *sock, apr_int32_t opt, apr_int32_t on)
apr_status_t apr_socket_timeout_set (apr_socket_t *sock, apr_interval_time_t t)
apr_status_t apr_socket_opt_get (apr_socket_t *sock, apr_int32_t opt, apr_int32_t *on)
apr_status_t apr_getsocketopt (apr_socket_t *sock, apr_int32_t opt, apr_int32_t *on)
apr_status_t apr_socket_timeout_get (apr_socket_t *sock, apr_interval_time_t *t)
apr_status_t apr_socket_atmark (apr_socket_t *sock, int *atmark)
apr_status_t apr_socket_addr_get (apr_sockaddr_t **sa, apr_interface_e which, apr_socket_t *sock)
apr_status_t apr_sockaddr_port_set (apr_sockaddr_t *sockaddr, apr_port_t port)
apr_status_t apr_sockaddr_port_get (apr_port_t *port, apr_sockaddr_t *sockaddr)
apr_status_t apr_sockaddr_ip_set (apr_sockaddr_t *sockaddr, const char *addr)
apr_status_t apr_sockaddr_ip_get (char **addr, apr_sockaddr_t *sockaddr)
int apr_sockaddr_equal (const apr_sockaddr_t *addr1, const apr_sockaddr_t *addr2)
apr_status_t apr_socket_from_file (apr_socket_t **newsock, apr_file_t *file)
apr_status_t apr_getservbyname (apr_sockaddr_t *sockaddr, const char *servname)
apr_status_t apr_ipsubnet_create (apr_ipsubnet_t **ipsub, const char *ipstr, const char *mask_or_numbits, apr_pool_t *p)
int apr_ipsubnet_test (apr_ipsubnet_t *ipsub, apr_sockaddr_t *sa)
apr_status_t apr_socket_accept_filter (apr_socket_t *sock, char *name, char *args)
apr_status_t apr_socket_protocol_get (apr_socket_t *sock, int *protocol)
apr_status_t apr_socket_inherit_set (apr_socket_t *thesocket)
void apr_socket_set_inherit (apr_socket_t *skt)
apr_status_t apr_socket_inherit_unset (apr_socket_t *thesocket)
void apr_socket_unset_inherit (apr_socket_t *skt)

Define Documentation

#define APR_ANYADDR   "0.0.0.0"

Default 'any' address

#define APR_INET   AF_INET

Not all platforms have these defined, so we'll define them here The default values come from FreeBSD 4.1.1

#define apr_inet_addr   inet_addr

The specific declaration of inet_addr's ... some platforms fall back inet_network (this is not good, but necessary)

#define APR_IPV4_ADDR_OK   0x01

See also:
apr_sockaddr_info_get()

#define APR_IPV6_ADDR_OK   0x02

See also:
apr_sockaddr_info_get()

#define APR_MAX_SECS_TO_LINGER   30

Maximum seconds to linger

#define APR_SENDFILE_DISCONNECT_SOCKET   1

Support reusing the socket on platforms which support it (from disconnect, specifically Win32.

Remarks:
Optional flag passed into apr_socket_sendfile()

#define APR_UNSPEC   0

Let the system decide which address family to use

#define APRMAXHOSTLEN   256

Maximum hostname length

#define MAX_SECS_TO_LINGER   APR_MAX_SECS_TO_LINGER

Deprecated:
See also:
APR_MAX_SECS_TO_LINGER


Typedef Documentation

typedef struct apr_hdtr_t apr_hdtr_t

A structure to encapsulate headers and trailers for apr_socket_sendfile

typedef struct in_addr apr_in_addr_t

A structure to represent in_addr

typedef struct apr_ipsubnet_t apr_ipsubnet_t

A structure to represent an IP subnet

typedef apr_uint16_t apr_port_t

Remarks:
use apr_uint16_t just in case some system has a short that isn't 16 bits...

typedef struct apr_sockaddr_t apr_sockaddr_t

Remarks:
It's defined here as I think it should all be platform safe...
See also:
apr_sockaddr_t

typedef struct apr_socket_t apr_socket_t

A structure to represent sockets


Enumeration Type Documentation

enum apr_interface_e

Enum to tell us if we're interested in remote or local socket

enum apr_shutdown_how_e

Define what type of socket shutdown should occur.

Enumerator:
APR_SHUTDOWN_READ  no longer allow read request
APR_SHUTDOWN_WRITE  no longer allow write requests
APR_SHUTDOWN_READWRITE  no longer allow read or write requests


Function Documentation

apr_status_t apr_accept ( apr_socket_t **  new_sock,
apr_socket_t sock,
apr_pool_t connection_pool 
)

Deprecated:
See also:
apr_socket_accept

apr_status_t apr_bind ( apr_socket_t sock,
apr_sockaddr_t sa 
)

Deprecated:
See also:
apr_socket_bind

apr_status_t apr_connect ( apr_socket_t sock,
apr_sockaddr_t sa 
)

Deprecated:
See also:
apr_socket_connect

apr_status_t apr_gethostname ( char *  buf,
int  len,
apr_pool_t cont 
)

Get name of the current machine

Parameters:
buf A buffer to store the hostname in.
len The maximum length of the hostname that can be stored in the buffer provided. The suggested length is APRMAXHOSTLEN + 1.
cont The pool to use.
Remarks:
If the buffer was not large enough, an error will be returned.

apr_status_t apr_getnameinfo ( char **  hostname,
apr_sockaddr_t sa,
apr_int32_t  flags 
)

Look up the host name from an apr_sockaddr_t.

Parameters:
hostname The hostname.
sa The apr_sockaddr_t.
flags Special processing flags.

apr_status_t apr_getservbyname ( apr_sockaddr_t sockaddr,
const char *  servname 
)

Given an apr_sockaddr_t and a service name, set the port for the service

Parameters:
sockaddr The apr_sockaddr_t that will have its port set
servname The name of the service you wish to use

apr_status_t apr_getsocketopt ( apr_socket_t sock,
apr_int32_t  opt,
apr_int32_t *  on 
)

Deprecated:
See also:
apr_socket_opt_set

apr_status_t apr_ipsubnet_create ( apr_ipsubnet_t **  ipsub,
const char *  ipstr,
const char *  mask_or_numbits,
apr_pool_t p 
)

Build an ip-subnet representation from an IP address and optional netmask or number-of-bits.

Parameters:
ipsub The new ip-subnet representation
ipstr The input IP address string
mask_or_numbits The input netmask or number-of-bits string, or NULL
p The pool to allocate from

int apr_ipsubnet_test ( apr_ipsubnet_t ipsub,
apr_sockaddr_t sa 
)

Test the IP address in an apr_sockaddr_t against a pre-built ip-subnet representation.

Parameters:
ipsub The ip-subnet representation
sa The socket address to test
Returns:
non-zero if the socket address is within the subnet, 0 otherwise

apr_status_t apr_listen ( apr_socket_t sock,
apr_int32_t  backlog 
)

Deprecated:
See also:
apr_socket_listen

apr_status_t apr_parse_addr_port ( char **  addr,
char **  scope_id,
apr_port_t port,
const char *  str,
apr_pool_t p 
)

Parse hostname/IP address with scope id and port.

Any of the following strings are accepted: 8080 (just the port number) www.apache.org (just the hostname) www.apache.org:8080 (hostname and port number) [fe80::1]:80 (IPv6 numeric address string only) [fe80::1eth0] (IPv6 numeric address string and scope id)

Invalid strings: (empty string) [abc] (not valid IPv6 numeric address string) abc:65536 (invalid port number)

Parameters:
addr The new buffer containing just the hostname. On output, *addr will be NULL if no hostname/IP address was specfied.
scope_id The new buffer containing just the scope id. On output, *scope_id will be NULL if no scope id was specified.
port The port number. On output, *port will be 0 if no port was specified. ### FIXME: 0 is a legal port (per RFC 1700). this should ### return something besides zero if the port is missing.
str The input string to be parsed.
p The pool from which *addr and *scope_id are allocated.
Remarks:
If scope id shouldn't be allowed, check for scope_id != NULL in addition to checking the return code. If addr/hostname should be required, check for addr == NULL in addition to checking the return code.

apr_status_t apr_recv ( apr_socket_t sock,
char *  buf,
apr_size_t *  len 
)

Deprecated:
See also:
apr_socket_recv

apr_status_t apr_recvfrom ( apr_sockaddr_t from,
apr_socket_t sock,
apr_int32_t  flags,
char *  buf,
apr_size_t *  len 
)

Deprecated:
See also:
apr_socket_recvfrom

apr_status_t apr_send ( apr_socket_t sock,
const char *  buf,
apr_size_t *  len 
)

Deprecated:
See also:
apr_socket_send

apr_status_t apr_sendfile ( apr_socket_t sock,
apr_file_t file,
apr_hdtr_t hdtr,
apr_off_t *  offset,
apr_size_t *  len,
apr_int32_t  flags 
)

Deprecated:
See also:
apr_socket_sendfile

apr_status_t apr_sendto ( apr_socket_t sock,
apr_sockaddr_t where,
apr_int32_t  flags,
const char *  buf,
apr_size_t *  len 
)

Deprecated:
See also:
apr_socket_sendto

apr_status_t apr_sendv ( apr_socket_t sock,
const struct iovec *  vec,
apr_int32_t  nvec,
apr_size_t *  len 
)

Deprecated:
See also:
apr_socket_sendv

apr_status_t apr_setsocketopt ( apr_socket_t sock,
apr_int32_t  opt,
apr_int32_t  on 
)

Deprecated:
See also:
apr_socket_opt_set

apr_status_t apr_shutdown ( apr_socket_t thesocket,
apr_shutdown_how_e  how 
)

Deprecated:
See also:
apr_socket_shutdown

int apr_sockaddr_equal ( const apr_sockaddr_t addr1,
const apr_sockaddr_t addr2 
)

See if the IP addresses in two APR socket addresses are equivalent. Appropriate logic is present for comparing IPv4-mapped IPv6 addresses with IPv4 addresses.

Parameters:
addr1 One of the APR socket addresses.
addr2 The other APR socket address.
Remarks:
The return value will be non-zero if the addresses are equivalent.

apr_status_t apr_sockaddr_info_get ( apr_sockaddr_t **  sa,
const char *  hostname,
apr_int32_t  family,
apr_port_t  port,
apr_int32_t  flags,
apr_pool_t p 
)

Create apr_sockaddr_t from hostname, address family, and port.

Parameters:
sa The new apr_sockaddr_t.
hostname The hostname or numeric address string to resolve/parse, or NULL to build an address that corresponds to 0.0.0.0 or ::
family The address family to use, or APR_UNSPEC if the system should decide.
port The port number.
flags Special processing flags:
       APR_IPV4_ADDR_OK          first query for IPv4 addresses; only look
                                 for IPv6 addresses if the first query failed;
                                 only valid if family is APR_UNSPEC and hostname
                                 isn't NULL; mutually exclusive with
                                 APR_IPV6_ADDR_OK
       APR_IPV6_ADDR_OK          first query for IPv6 addresses; only look
                                 for IPv4 addresses if the first query failed;
                                 only valid if family is APR_UNSPEC and hostname
                                 isn't NULL and APR_HAVE_IPV6; mutually exclusive
                                 with APR_IPV4_ADDR_OK
 
p The pool for the apr_sockaddr_t and associated storage.

apr_status_t apr_sockaddr_ip_get ( char **  addr,
apr_sockaddr_t sockaddr 
)

Return the IP address (in numeric address string format) in an APR socket address. APR will allocate storage for the IP address string from the pool of the apr_sockaddr_t.

Parameters:
addr The IP address.
sockaddr The socket address to reference.

apr_status_t apr_sockaddr_ip_set ( apr_sockaddr_t sockaddr,
const char *  addr 
)

Set the IP address in an APR socket address.

Parameters:
sockaddr The socket address to use
addr The IP address to attach to the socket. Use APR_ANYADDR to use any IP addr on the machine.
Deprecated:
See also:
apr_sockaddr_info_get

apr_status_t apr_sockaddr_port_get ( apr_port_t port,
apr_sockaddr_t sockaddr 
)

Return the port in an APR socket address.

Parameters:
port The port from the socket address.
sockaddr The socket address to reference.
Deprecated:
Access port field directly.

apr_status_t apr_sockaddr_port_set ( apr_sockaddr_t sockaddr,
apr_port_t  port 
)

Set the port in an APR socket address.

Parameters:
sockaddr The socket address to set.
port The port to be stored in the socket address.
Deprecated:
See also:
apr_sockaddr_info_get

apr_status_t apr_socket_accept ( apr_socket_t **  new_sock,
apr_socket_t sock,
apr_pool_t connection_pool 
)

Accept a new connection request

Parameters:
new_sock A copy of the socket that is connected to the socket that made the connection request. This is the socket which should be used for all future communication.
sock The socket we are listening on.
connection_pool The pool for the new socket.

apr_status_t apr_socket_accept_filter ( apr_socket_t sock,
char *  name,
char *  args 
)

Set an OS level accept filter.

Parameters:
sock The socket to put the accept filter on.
name The accept filter
args Any extra args to the accept filter. Passing NULL here removes the accept filter.

apr_status_t apr_socket_addr_get ( apr_sockaddr_t **  sa,
apr_interface_e  which,
apr_socket_t sock 
)

Return an apr_sockaddr_t from an apr_socket_t

Parameters:
sa The returned apr_sockaddr_t.
which Which interface do we want the apr_sockaddr_t for?
sock The socket to use

apr_status_t apr_socket_atmark ( apr_socket_t sock,
int *  atmark 
)

Query the specified socket if at the OOB/Urgent data mark

Parameters:
sock The socket to query
atmark Is set to true if socket is at the OOB/urgent mark, otherwise is set to false.

apr_status_t apr_socket_bind ( apr_socket_t sock,
apr_sockaddr_t sa 
)

Bind the socket to its associated port

Parameters:
sock The socket to bind
sa The socket address to bind to
Remarks:
This may be where we will find out if there is any other process using the selected port.

apr_status_t apr_socket_close ( apr_socket_t thesocket  ) 

Close a socket.

Parameters:
thesocket The socket to close

apr_status_t apr_socket_connect ( apr_socket_t sock,
apr_sockaddr_t sa 
)

Issue a connection request to a socket either on the same machine or a different one.

Parameters:
sock The socket we wish to use for our side of the connection
sa The address of the machine we wish to connect to. If NULL, APR assumes that the sockaddr_in in the apr_socket is completely filled out.

apr_status_t apr_socket_create ( apr_socket_t **  new_sock,
int  family,
int  type,
apr_pool_t cont 
)

Create a socket.

Remarks:
With APR 1.0, this function follows the prototype of apr_socket_create_ex.
Parameters:
new_sock The new socket that has been set up.
family The address family of the socket (e.g., APR_INET).
type The type of the socket (e.g., SOCK_STREAM).
cont The pool to use

apr_status_t apr_socket_create_ex ( apr_socket_t **  new_sock,
int  family,
int  type,
int  protocol,
apr_pool_t cont 
)

Create a socket.

Remarks:
With APR 1.0, this function is deprecated and apr_socket_create follows this prototype.
Parameters:
new_sock The new socket that has been set up.
family The address family of the socket (e.g., APR_INET).
type The type of the socket (e.g., SOCK_STREAM).
protocol The protocol of the socket (e.g., APR_PROTO_TCP).
cont The pool to use

apr_status_t apr_socket_data_get ( void **  data,
const char *  key,
apr_socket_t sock 
)

Return the data associated with the current socket

Parameters:
data The user data associated with the socket.
key The key to associate with the user data.
sock The currently open socket.

apr_status_t apr_socket_data_set ( apr_socket_t sock,
void *  data,
const char *  key,
apr_status_t(*)(void *)  cleanup 
)

Set the data associated with the current socket.

Parameters:
sock The currently open socket.
data The user data to associate with the socket.
key The key to associate with the data.
cleanup The cleanup to call when the socket is destroyed.

apr_status_t apr_socket_from_file ( apr_socket_t **  newsock,
apr_file_t file 
)

Convert a File type to a socket so that it can be used in a poll operation.

Parameters:
newsock the newly created socket which represents a file.
file the file to mask as a socket.
Warning:
This is not available on all platforms. Platforms that have the ability to poll files for data to be read/written/exceptions will have the APR_FILES_AS_SOCKETS macro defined as true.
Deprecated:
This function has been deprecated, because of the new poll implementation.

apr_status_t apr_socket_inherit_set ( apr_socket_t thesocket  ) 

Set a socket to be inherited by child processes.

apr_status_t apr_socket_inherit_unset ( apr_socket_t thesocket  ) 

Unset a socket from being inherited by child processes.

apr_status_t apr_socket_listen ( apr_socket_t sock,
apr_int32_t  backlog 
)

Listen to a bound socket for connections.

Parameters:
sock The socket to listen on
backlog The number of outstanding connections allowed in the sockets listen queue. If this value is less than zero, the listen queue size is set to zero.

apr_status_t apr_socket_opt_get ( apr_socket_t sock,
apr_int32_t  opt,
apr_int32_t *  on 
)

Query socket options for the specified socket

Parameters:
sock The socket to query
opt The option we would like to query. One of:
            APR_SO_DEBUG      --  turn on debugging information 
            APR_SO_KEEPALIVE  --  keep connections active
            APR_SO_LINGER     --  lingers on close if data is present
            APR_SO_NONBLOCK   --  Turns blocking on/off for socket
            APR_SO_REUSEADDR  --  The rules used in validating addresses
                                  supplied to bind should allow reuse
                                  of local addresses.
            APR_SO_SNDBUF     --  Set the SendBufferSize
            APR_SO_RCVBUF     --  Set the ReceiveBufferSize
            APR_SO_DISCONNECTED -- Query the disconnected state of the socket.
                                  (Currently only used on Windows)
 
on Socket option returned on the call.

apr_status_t apr_socket_opt_set ( apr_socket_t sock,
apr_int32_t  opt,
apr_int32_t  on 
)

Setup socket options for the specified socket

Parameters:
sock The socket to set up.
opt The option we would like to configure. One of:
            APR_SO_DEBUG      --  turn on debugging information 
            APR_SO_KEEPALIVE  --  keep connections active
            APR_SO_LINGER     --  lingers on close if data is present
            APR_SO_NONBLOCK   --  Turns blocking on/off for socket
            APR_SO_REUSEADDR  --  The rules used in validating addresses
                                  supplied to bind should allow reuse
                                  of local addresses.
            APR_SO_SNDBUF     --  Set the SendBufferSize
            APR_SO_RCVBUF     --  Set the ReceiveBufferSize
 
on Value for the option.

apr_status_t apr_socket_protocol_get ( apr_socket_t sock,
int *  protocol 
)

Return the protocol of the socket.

Parameters:
sock The socket to query.
protocol The returned protocol (e.g., APR_PROTO_TCP).

apr_status_t apr_socket_recv ( apr_socket_t sock,
char *  buf,
apr_size_t *  len 
)

Read data from a network.

Parameters:
sock The socket to read the data from.
buf The buffer to store the data in.
len On entry, the number of bytes to receive; on exit, the number of bytes received.
Remarks:
 This functions acts like a blocking read by default.  To change 
 this behavior, use apr_socket_timeout_set().
 The number of bytes actually sent is stored in argument 3.
It is possible for both bytes to be received and an APR_EOF or other error to be returned.

 APR_EINTR is never returned.
 

apr_status_t apr_socket_recvfrom ( apr_sockaddr_t from,
apr_socket_t sock,
apr_int32_t  flags,
char *  buf,
apr_size_t *  len 
)

Parameters:
from The apr_sockaddr_t to fill in the recipient info
sock The socket to use
flags The flags to use
buf The buffer to use
len The length of the available buffer

apr_status_t apr_socket_send ( apr_socket_t sock,
const char *  buf,
apr_size_t *  len 
)

Send data over a network.

Parameters:
sock The socket to send the data over.
buf The buffer which contains the data to be sent.
len On entry, the number of bytes to send; on exit, the number of bytes sent.
Remarks:
 This functions acts like a blocking write by default.  To change 
 this behavior, use apr_socket_timeout_set().
It is possible for both bytes to be sent and an error to be returned.

 APR_EINTR is never returned.
 

apr_status_t apr_socket_sendfile ( apr_socket_t sock,
apr_file_t file,
apr_hdtr_t hdtr,
apr_off_t *  offset,
apr_size_t *  len,
apr_int32_t  flags 
)

Send a file from an open file descriptor to a socket, along with optional headers and trailers

Parameters:
sock The socket to which we're writing
file The open file from which to read
hdtr A structure containing the headers and trailers to send
offset Offset into the file where we should begin writing
len (input) - Number of bytes to send from the file (output) - Number of bytes actually sent, including headers, file, and trailers
flags APR flags that are mapped to OS specific flags
Remarks:
This functions acts like a blocking write by default. To change this behavior, use apr_socket_timeout_set(). The number of bytes actually sent is stored in argument 5.

apr_status_t apr_socket_sendto ( apr_socket_t sock,
apr_sockaddr_t where,
apr_int32_t  flags,
const char *  buf,
apr_size_t *  len 
)

Parameters:
sock The socket to send from
where The apr_sockaddr_t describing where to send the data
flags The flags to use
buf The data to send
len The length of the data to send

apr_status_t apr_socket_sendv ( apr_socket_t sock,
const struct iovec *  vec,
apr_int32_t  nvec,
apr_size_t *  len 
)

Send multiple packets of data over a network.

Parameters:
sock The socket to send the data over.
vec The array of iovec structs containing the data to send
nvec The number of iovec structs in the array
len Receives the number of bytes actually written
Remarks:
 This functions acts like a blocking write by default.  To change 
 this behavior, use apr_socket_timeout_set().
 The number of bytes actually sent is stored in argument 3.
It is possible for both bytes to be sent and an error to be returned.

 APR_EINTR is never returned.
 

void apr_socket_set_inherit ( apr_socket_t skt  ) 

Deprecated:
See also:
apr_socket_inherit_set

apr_status_t apr_socket_shutdown ( apr_socket_t thesocket,
apr_shutdown_how_e  how 
)

Shutdown either reading, writing, or both sides of a socket.

Parameters:
thesocket The socket to close
how How to shutdown the socket. One of:
            APR_SHUTDOWN_READ         no longer allow read requests
            APR_SHUTDOWN_WRITE        no longer allow write requests
            APR_SHUTDOWN_READWRITE    no longer allow read or write requests 
 
See also:
apr_shutdown_how_e
Remarks:
This does not actually close the socket descriptor, it just controls which calls are still valid on the socket.

apr_status_t apr_socket_timeout_get ( apr_socket_t sock,
apr_interval_time_t t 
)

Query socket timeout for the specified socket

Parameters:
sock The socket to query
t Socket timeout returned from the query.

apr_status_t apr_socket_timeout_set ( apr_socket_t sock,
apr_interval_time_t  t 
)

Setup socket timeout for the specified socket

Parameters:
sock The socket to set up.
t Value for the timeout.
   t > 0  -- read and write calls return APR_TIMEUP if specified time
             elapsess with no data read or written
   t == 0 -- read and write calls never block
   t < 0  -- read and write calls block
 

void apr_socket_unset_inherit ( apr_socket_t skt  ) 

Deprecated:
See also:
apr_socket_inherit_unset


Generated on Mon Nov 26 11:47:27 2007 for Apache Portable Runtime by  doxygen 1.5.2