pixma_bjnp.c Added bjnp_sockaddr_t, a union that makes all explicit typecasts for sockaddr_xxx unnecessary

This makes the code much cleaner
merge-requests/1/head
Louis Lagendijk 2012-08-25 12:38:22 +02:00
rodzic 177fde920c
commit d929acb1b2
2 zmienionych plików z 130 dodań i 120 usunięć

Wyświetl plik

@ -97,7 +97,7 @@
/* static data */
static device_t device[BJNP_NO_DEVICES];
static bjnp_device_t device[BJNP_NO_DEVICES];
static int bjnp_no_devices = 0;
/*
@ -122,30 +122,26 @@ u8tohex (char *string, uint8_t *value, int len )
string[2 * len ] = '\0';
}
static int sa_is_equal( const struct sockaddr * sa1, const struct sockaddr * sa2)
static int sa_is_equal( const bjnp_sockaddr_t * sa1, const bjnp_sockaddr_t * sa2)
{
if ((sa1 == NULL) || (sa2 == NULL) )
return 0;
if (sa1->sa_family == sa2-> sa_family)
if (sa1->sa.sa_family == sa2-> sa.sa_family)
{
if( sa1 -> sa_family == AF_INET)
if( sa1 -> sa.sa_family == AF_INET)
{
const struct sockaddr_in *sa1_4 = (const struct sockaddr_in *) sa1;
const struct sockaddr_in *sa2_4 = (const struct sockaddr_in *) sa2;
if ( (sa1_4->sin_port == sa2_4->sin_port) &&
(sa1_4->sin_addr.s_addr == sa2_4->sin_addr.s_addr))
if ( (sa1->ipv4.sin_port == sa2->ipv4.sin_port) &&
(sa1->ipv4.sin_addr.s_addr == sa2->ipv4.sin_addr.s_addr))
{
return 1;
}
}
#ifdef ENABLE_IPV6
else if (sa1 -> sa_family == AF_INET6 )
else if (sa1 -> sa.sa_family == AF_INET6 )
{
const struct sockaddr_in6 *sa1_6 = ( const struct sockaddr_in6 *) sa1;
const struct sockaddr_in6 *sa2_6 = ( const struct sockaddr_in6 *) sa2;
if ( (sa1_6->sin6_port == sa2_6->sin6_port) &&
(memcmp(&(sa1_6->sin6_addr), &(sa2_6->sin6_addr), sizeof(sa1_6->sin6_addr)) == 0))
if ( (sa1-> ipv6.sin6_port == sa2->ipv6.sin6_port) &&
(memcmp(&(sa1->ipv6.sin6_addr), &(sa2->ipv6.sin6_addr), sizeof(struct in6_addr)) == 0))
{
return 1;
}
@ -155,6 +151,23 @@ static int sa_is_equal( const struct sockaddr * sa1, const struct sockaddr * sa2
return 0;
}
static int
sa_size( const bjnp_sockaddr_t *sa)
{
switch (sa -> sa.sa_family)
{
case AF_INET:
return (sizeof(struct sockaddr_in) );
case AF_INET6:
return (sizeof(struct sockaddr_in6) );
default:
/* should not occur */
return sizeof( bjnp_sockaddr_t );
}
}
static int
parse_IEEE1284_to_model (char *scanner_id, char *model)
{
@ -265,7 +278,7 @@ bjnp_open_tcp (int devno)
int val;
int domain;
domain = device[devno].addr -> sa_family;
domain = device[devno].addr -> sa.sa_family;
if ((sock = socket (domain, SOCK_STREAM, 0)) < 0)
{
@ -299,7 +312,7 @@ bjnp_open_tcp (int devno)
fcntl (sock, F_SETFD, FD_CLOEXEC);
if (connect
(sock, device[devno].addr, sizeof(struct sockaddr_storage )) != 0)
(sock, &(device[devno].addr->in), sa_size(device[devno].addr) )!= 0)
{
PDBG (pixma_dbg
(LOG_CRIT, "bjnp_open_tcp: Can not connect to scanner: %s\n",
@ -468,19 +481,17 @@ bjnp_setup_udp_socket ( const int dev_no )
char addr_string[256];
int port;
struct sockaddr * addr = device[dev_no].addr;
if ( addr->sa_family == AF_INET)
bjnp_sockaddr_t * addr = device[dev_no].addr;
if ( addr->sa.sa_family == AF_INET)
{
struct sockaddr_in *addr_ipv4 = (struct sockaddr_in *) addr;
inet_ntop( AF_INET, &(addr_ipv4 -> sin_addr.s_addr), addr_string, 256);
port = ntohs (addr_ipv4->sin_port);
inet_ntop( AF_INET, &(addr -> ipv4.sin_addr.s_addr), addr_string, 256);
port = ntohs (addr->ipv4.sin_port);
}
#ifdef ENABLE_IPV6
else if (addr->sa_family == AF_INET6)
else if (addr->sa.sa_family == AF_INET6)
{
struct sockaddr_in6 *addr_ipv6 = (struct sockaddr_in6 *) addr;
inet_ntop( AF_INET6, &(addr_ipv6->sin6_addr), addr_string, 256);
port = ntohs (addr_ipv6->sin6_port);
inet_ntop( AF_INET6, &(addr->ipv6.sin6_addr), addr_string, 256);
port = ntohs (addr->ipv6.sin6_port);
}
#endif
else
@ -492,7 +503,7 @@ bjnp_setup_udp_socket ( const int dev_no )
PDBG (pixma_dbg (LOG_DEBUG, "setup_udp_socket: Setting up the UDP socket to: %s port %d\n",
addr_string, port ) );
if ((sockfd = socket (addr->sa_family, SOCK_DGRAM, IPPROTO_UDP)) == -1)
if ((sockfd = socket (addr->sa.sa_family, SOCK_DGRAM, IPPROTO_UDP)) == -1)
{
PDBG (pixma_dbg
(LOG_CRIT, "setup_udp_socket: can not open socket - %s\n",
@ -501,7 +512,7 @@ bjnp_setup_udp_socket ( const int dev_no )
}
if (connect
(sockfd, device[dev_no].addr, sizeof(struct sockaddr_storage) )!= 0)
(sockfd, &(device[dev_no].addr->sa), sa_size(device[dev_no].addr) )!= 0)
{
PDBG (pixma_dbg
(LOG_CRIT, "setup_udp_socket: connect failed- %s\n",
@ -634,7 +645,7 @@ get_scanner_id (const int dev_no, char *model)
}
static void
get_scanner_name(const struct sockaddr *scanner_sa, char *host)
get_scanner_name(const bjnp_sockaddr_t *scanner_sa, char *host)
{
/*
* Parse identify command responses to ip-address
@ -643,9 +654,7 @@ get_scanner_name(const struct sockaddr *scanner_sa, char *host)
struct addrinfo *results;
struct addrinfo *result;
const struct sockaddr_in * scanner_sa4;
#ifdef ENABLE_IPV6
const struct sockaddr_in6 * scanner_sa6;
char tmp_addr[INET6_ADDRSTRLEN + 1];
char ip_address[INET6_ADDRSTRLEN + 3];
#else
@ -655,22 +664,20 @@ get_scanner_name(const struct sockaddr *scanner_sa, char *host)
int match = 0;
char service[64];
switch (scanner_sa -> sa_family)
switch (scanner_sa -> sa.sa_family)
{
case AF_INET:
scanner_sa4 = (const struct sockaddr_in *) scanner_sa;
inet_ntop( AF_INET, &(scanner_sa4 -> sin_addr.s_addr), ip_address, sizeof(ip_address ) );
sprintf(service, "%d", ntohs( scanner_sa4 -> sin_port ));
inet_ntop( AF_INET, &(scanner_sa -> ipv4.sin_addr.s_addr), ip_address, sizeof(ip_address ) );
sprintf(service, "%d", ntohs( scanner_sa -> ipv4.sin_port ));
break;
#ifdef ENABLE_IPV6
case AF_INET6:
scanner_sa6 = (const struct sockaddr_in6 *) scanner_sa;
inet_ntop( AF_INET6, scanner_sa6 -> sin6_addr.s6_addr, tmp_addr, sizeof(tmp_addr) );
if (IN6_IS_ADDR_LINKLOCAL(scanner_sa6 -> sin6_addr.s6_addr) )
sprintf(ip_address, "[%s%%%d]", tmp_addr, scanner_sa6 -> sin6_scope_id);
inet_ntop( AF_INET6, scanner_sa -> ipv6.sin6_addr.s6_addr, tmp_addr, sizeof(tmp_addr) );
if (IN6_IS_ADDR_LINKLOCAL(scanner_sa -> ipv6.sin6_addr.s6_addr) )
sprintf(ip_address, "[%s%%%d]", tmp_addr, scanner_sa -> ipv6.sin6_scope_id);
else
sprintf(ip_address, "[%s]", tmp_addr);
sprintf(service, "%d", ntohs( scanner_sa6 -> sin6_port)) ;
sprintf(service, "%d", ntohs( scanner_sa -> ipv6.sin6_port)) ;
break;
#endif
default:
@ -680,7 +687,7 @@ get_scanner_name(const struct sockaddr *scanner_sa, char *host)
/* do reverse name lookup, if hostname can not be found return ip-address */
if( (error = getnameinfo( scanner_sa, sizeof(struct sockaddr_storage),
if( (error = getnameinfo( &(scanner_sa -> sa) , sa_size( scanner_sa),
host, BJNP_HOST_MAX , NULL, 0, NI_NAMEREQD) ) != 0 )
{
PDBG (pixma_dbg(LOG_INFO, "Using IP-address as reverse lookup failed: %s\n", gai_strerror(error) ) );
@ -690,7 +697,7 @@ get_scanner_name(const struct sockaddr *scanner_sa, char *host)
else
{
/* some buggy routers return rubbish if reverse lookup fails, so
* we do a forward lookup on the received name to see if it matches */
* we do a forward lookup on the received name to see if the result matches */
if (getaddrinfo(host , service, NULL, &results) == 0)
{
@ -698,7 +705,7 @@ get_scanner_name(const struct sockaddr *scanner_sa, char *host)
while (result != NULL)
{
if(sa_is_equal( scanner_sa, result-> ai_addr))
if(sa_is_equal( scanner_sa, (bjnp_sockaddr_t *)result-> ai_addr))
{
/* found match, good */
PDBG (pixma_dbg (LOG_INFO,
@ -713,7 +720,7 @@ get_scanner_name(const struct sockaddr *scanner_sa, char *host)
if (match != 1)
{
PDBG (pixma_dbg (LOG_INFO,
"Forward lookup for %s succeeded, IP-address however not found, using IP-address %s instead\n",
"Forward lookup for %s succeeded, IP-address does not match, using IP-address %s instead\n",
host, ip_address));
strcpy (host, ip_address);
}
@ -727,14 +734,14 @@ get_scanner_name(const struct sockaddr *scanner_sa, char *host)
}
}
static int create_broadcast_socket( const struct sockaddr * local_addr )
static int create_broadcast_socket( const bjnp_sockaddr_t * local_addr )
{
int sockfd = -1;
int broadcast = 1;
int ipv6_v6only = 1;
if ((sockfd = socket (local_addr-> sa_family, SOCK_DGRAM, 0)) == -1)
if ((sockfd = socket (local_addr-> sa.sa_family, SOCK_DGRAM, 0)) == -1)
{
PDBG (pixma_dbg
(LOG_CRIT, "create_broadcast_socket: can not open socket - %s",
@ -757,7 +764,7 @@ static int create_broadcast_socket( const struct sockaddr * local_addr )
};
/* For an IPv6 socket, bind to v6 only so a V6 socket can co-exist with a v4 socket */
if ( (local_addr -> sa_family == AF_INET6) && ( setsockopt
if ( (local_addr -> sa.sa_family == AF_INET6) && ( setsockopt
(sockfd, IPPROTO_IPV6, IPV6_V6ONLY, (const char *) &ipv6_v6only,
sizeof (ipv6_v6only)) != 0) )
{
@ -770,8 +777,8 @@ static int create_broadcast_socket( const struct sockaddr * local_addr )
};
if (bind
(sockfd, local_addr,
(socklen_t) sizeof (struct sockaddr_storage)) != 0)
(sockfd, &(local_addr->in),
(socklen_t) sa_size( local_addr)) != 0)
{
PDBG (pixma_dbg
(LOG_CRIT,
@ -784,8 +791,8 @@ static int create_broadcast_socket( const struct sockaddr * local_addr )
}
static int
prepare_socket(const char *if_name, const struct sockaddr *local_sa,
const struct sockaddr *broadcast_sa, struct sockaddr_storage * dest_sa)
prepare_socket(const char *if_name, const bjnp_sockaddr_t *local_sa,
const bjnp_sockaddr_t *broadcast_sa, bjnp_sockaddr_t * dest_sa)
{
/*
* Prepare a socket for broadcast or multicast
@ -798,8 +805,7 @@ prepare_socket(const char *if_name, const struct sockaddr *local_sa,
*/
int socket = -1;
struct sockaddr_storage local_sa_s;
memset( &local_sa_s, 0, sizeof(local_sa_s) );
bjnp_sockaddr_t local_sa_copy;
if ( local_sa == NULL )
{
@ -808,18 +814,17 @@ prepare_socket(const char *if_name, const struct sockaddr *local_sa,
if_name));
return -1;
}
switch( local_sa -> sa_family )
memset( &local_sa_copy, 0, sizeof(local_sa_copy) );
memcpy( &local_sa_copy, local_sa, sa_size(local_sa) );
switch( local_sa_copy.sa.sa_family )
{
case AF_INET:
{
const struct sockaddr_in * broadcast_sa_4 = (const struct sockaddr_in *) broadcast_sa;
struct sockaddr_in *dest_sa_4 = (struct sockaddr_in *) dest_sa;
local_sa_copy.ipv4.sin_port = htons(BJNP_PORT_SCAN);
struct sockaddr_in *local_sa_4 = (struct sockaddr_in *) &local_sa_s;
memcpy(local_sa_4, local_sa, sizeof(struct sockaddr_in) );
local_sa_4-> sin_port = htons(BJNP_PORT_SCAN);
if (local_sa_4 -> sin_addr.s_addr == htonl (INADDR_LOOPBACK) )
if (local_sa_copy.ipv4.sin_addr.s_addr == htonl (INADDR_LOOPBACK) )
{
/* not a valid interface */
@ -828,34 +833,31 @@ prepare_socket(const char *if_name, const struct sockaddr *local_sa,
if_name));
return -1;
}
/* send broadcasts to the broadcast address of the interface */
memcpy(dest_sa, broadcast_sa, sa_size(dest_sa) );
dest_sa -> ipv4.sin_port = htons(BJNP_PORT_SCAN);
if ( (socket = create_broadcast_socket( &local_sa_copy) ) != -1)
{
PDBG (pixma_dbg (LOG_INFO, "%s is IPv4 capable, sending broadcast, socket = %d\n",
if_name, socket));
}
else
{
memcpy(dest_sa_4, broadcast_sa_4, sizeof(struct sockaddr_in));
dest_sa_4 -> sin_port = htons(BJNP_PORT_SCAN);
if ( (socket = create_broadcast_socket( (struct sockaddr *)local_sa_4) ) != -1)
{
PDBG (pixma_dbg (LOG_INFO, "%s is IPv4 capable, sending broadcast, socket = %d\n",
if_name, socket));
}
else
{
PDBG (pixma_dbg (LOG_INFO, "%s is IPv4 capable, but failed to create a socket.\n",
if_name));
return -1;
}
PDBG (pixma_dbg (LOG_INFO, "%s is IPv4 capable, but failed to create a socket.\n",
if_name));
return -1;
}
}
break;
#ifdef ENABLE_IPV6
case AF_INET6:
{
struct sockaddr_in6 *dest_sa_6 = (struct sockaddr_in6 *) dest_sa;
struct sockaddr_in6 *local_sa_6 = (struct sockaddr_in6 *) &local_sa_s;
local_sa_copy.ipv6.sin6_port = htons(BJNP_PORT_SCAN);
memcpy(local_sa_6, local_sa, sizeof(struct sockaddr_in6) );
local_sa_6-> sin6_port = htons(BJNP_PORT_SCAN);
if (IN6_IS_ADDR_LOOPBACK( local_sa_6 -> sin6_addr.s6_addr ) )
if (IN6_IS_ADDR_LOOPBACK( local_sa_copy.ipv6.sin6_addr.s6_addr ) )
{
/* not a valid interface */
@ -866,10 +868,10 @@ prepare_socket(const char *if_name, const struct sockaddr *local_sa,
}
else
{
dest_sa_6 -> sin6_family = AF_INET6;
dest_sa_6 -> sin6_port = htons(BJNP_PORT_SCAN);
inet_pton(AF_INET6, "ff02::1", dest_sa_6 -> sin6_addr.s6_addr);
if ( (socket = create_broadcast_socket( (struct sockaddr *) local_sa_6) ) != -1)
dest_sa -> ipv6.sin6_family = AF_INET6;
dest_sa -> ipv6.sin6_port = htons(BJNP_PORT_SCAN);
inet_pton(AF_INET6, "ff02::1", dest_sa -> ipv6.sin6_addr.s6_addr);
if ( (socket = create_broadcast_socket( &local_sa_copy ) ) != -1)
{
PDBG (pixma_dbg (LOG_INFO, "%s is IPv6 capable, sending broadcast, socket = %d\n",
if_name, socket));
@ -892,7 +894,7 @@ prepare_socket(const char *if_name, const struct sockaddr *local_sa,
}
static int
bjnp_send_broadcast (int sockfd, struct sockaddr_storage * broadcast_addr,
bjnp_send_broadcast (int sockfd, const bjnp_sockaddr_t * broadcast_addr,
struct BJNP_command cmd, int size)
{
int num_bytes;
@ -901,8 +903,8 @@ bjnp_send_broadcast (int sockfd, struct sockaddr_storage * broadcast_addr,
/* usebroadcast address of interface */
if ((num_bytes = sendto (sockfd, &cmd, size, 0,
(struct sockaddr *) broadcast_addr,
sizeof ( struct sockaddr_storage ) ) ) != size)
&(broadcast_addr->in),
sa_size( broadcast_addr)) ) != size)
{
PDBG (pixma_dbg (LOG_INFO,
"bjnp_send_broadcast: Socket: %d: sent only %x = %d bytes of packet, error = %s\n",
@ -1461,7 +1463,7 @@ bjnp_allocate_device (SANE_String_Const devname, const char *mac_address_string
/* we check for matching addresses as wel as matching mac_addresses as */
/* an IPv6 host can have multiple adresses */
if ( (sa_is_equal( device[i].addr, cur -> ai_addr) ) ||
if ( (sa_is_equal( device[i].addr, (bjnp_sockaddr_t *)cur -> ai_addr) ) ||
( strcmp( device[i].mac_address, mac_address_string ) == 0 ) )
{
freeaddrinfo(res);
@ -1503,10 +1505,9 @@ bjnp_allocate_device (SANE_String_Const devname, const char *mac_address_string
#endif
device[*dn].tcp_socket = -1;
/* both a struct sockaddr_in and a sockaddr_in6 fit in sockaddr_storage */
device[*dn].addr = (struct sockaddr *) malloc(sizeof ( struct sockaddr_storage) );
memset( device[*dn].addr, 0, sizeof( struct sockaddr ) );
memcpy(device[*dn].addr, res-> ai_addr, sizeof(struct sockaddr_storage) );
device[*dn].addr = (bjnp_sockaddr_t *) malloc(sizeof ( bjnp_sockaddr_t) );
memset( device[*dn].addr, 0, sizeof( bjnp_sockaddr_t ) );
memcpy(device[*dn].addr, res-> ai_addr, sizeof( bjnp_sockaddr_t ) );
device[*dn].session_id = 0;
device[*dn].serial = -1;
@ -1636,8 +1637,8 @@ sanei_bjnp_find_devices (const char **conf_devices,
char scanner_host[256];
char uri[256];
int dev_no;
struct sockaddr_storage broadcast_addr[BJNP_SOCK_MAX];
struct sockaddr_storage scanner_sa;
bjnp_sockaddr_t broadcast_addr[BJNP_SOCK_MAX];
bjnp_sockaddr_t scanner_sa;
socklen_t socklen;
char mac_address_string[BJNP_SERIAL_MAX];
@ -1687,8 +1688,8 @@ sanei_bjnp_find_devices (const char **conf_devices,
if ( ! (interface -> ifa_flags & IFF_POINTOPOINT) &&
( (socket_fd[no_sockets] =
prepare_socket( interface -> ifa_name,
interface -> ifa_addr,
interface -> ifa_broadaddr,
(bjnp_sockaddr_t *) interface -> ifa_addr,
(bjnp_sockaddr_t *) interface -> ifa_broadaddr,
&broadcast_addr[no_sockets] ) ) != -1 ) )
{
/* track highest used socket for later use in select */
@ -1707,24 +1708,20 @@ sanei_bjnp_find_devices (const char **conf_devices,
/* we have no easy way to find interfaces with their broadcast addresses. */
/* use global broadcast and all-hosts instead */
{
struct sockaddr_storage local;
struct sockaddr_in * local_4 = (struct sockaddr_in *) &local;
struct sockaddr_in bc_addr_4;
bjnp_sockaddr_t local;
bjnp_sockaddr_t bc_addr;
#ifdef ENABLE_IPV6
struct sockaddr_in6 * local_6 = (struct sockaddr_in6 *) &local;
#endif
memset( &local, 0, sizeof( local) );
local_4 -> sin_family = AF_INET;
local_4 -> sin_addr.s_addr = htonl (INADDR_ANY);
local -> ipv4.sin_family = AF_INET;
local -> ipv4.sin_addr.s_addr = htonl (INADDR_ANY);
bc_addr_4.sin_family = AF_INET;
bc_addr_4.sin_port = htons(BJNP_PORT_SCAN);
bc_addr_4.sin_addr.s_addr = htonl (INADDR_BROADCAST);
bc_addr.ipv4.sin_family = AF_INET;
bc_addr.ipv4.sin_port = htons(BJNP_PORT_SCAN);
bc_addr.ipv4.sin_addr.s_addr = htonl (INADDR_BROADCAST);
socket_fd[no_sockets] = prepare_socket( "any_interface",
(struct sockaddr *) &local,
(struct sockaddr *) &bc_addr_4,
&local,
&bc_addr,
&broadcast_addr[no_sockets] );
if (socket_fd[no_sockets] >= 0)
{
@ -1736,11 +1733,11 @@ sanei_bjnp_find_devices (const char **conf_devices,
no_sockets++;
}
#ifdef ENABLE_IPV6
local_6 -> sin6_family = AF_INET6;
local_6 -> sin6_addr = in6addr_any;
local -> ipv6.sin6_family = AF_INET6;
local -> ipv6.sin6_addr = in6addr_any;
socket_fd[no_sockets] = prepare_socket( "any_interface",
(struct sockaddr *) &local,
&local,
NULL,
&broadcast_addr[no_sockets] );
if (socket_fd[no_sockets] >= 0)
@ -1786,7 +1783,7 @@ sanei_bjnp_find_devices (const char **conf_devices,
socklen = sizeof(scanner_sa);
if ((numbytes =
recvfrom (socket_fd[i], resp_buf, sizeof (resp_buf), 0,
(struct sockaddr *) &scanner_sa, &socklen ) ) == -1)
&(scanner_sa.in), &socklen ) ) == -1)
{
PDBG (pixma_dbg
(LOG_INFO, "find_devices: no data received"));
@ -1821,7 +1818,7 @@ sanei_bjnp_find_devices (const char **conf_devices,
/* scanner found, get IP-address and hostname */
u8tohex( mac_address_string, disc_resp -> mac_addr, sizeof(disc_resp -> mac_addr) );
get_scanner_name( (struct sockaddr *) &scanner_sa, scanner_host);
get_scanner_name( &scanner_sa, scanner_host);
/* construct URI */
sprintf (uri, "%s://%s:%d", BJNP_METHOD, scanner_host,

Wyświetl plik

@ -55,6 +55,10 @@
* BJNP definitions
*/
/* selection of options */
/* This works now, disable when it gives you problems */
#define PIXMA_BJNP_USE_STATUS 1
/* sizes */
#define BJNP_PRINTBUF_MAX 1400 /* size of printbuffer */
@ -70,22 +74,22 @@
#define BJNP_ARGS_MAX 128 /* max length of argument string */
#define BJNP_SERIAL_MAX 16 /* maximum length of serial number */
#define BJNP_NO_DEVICES 16 /* max number of open devices */
#define BJNP_SCAN_BUF_MAX 65536 /* size of scanner data intermediate buffer */
/* timers */
#define BJNP_BROADCAST_INTERVAL 10 /* ms between broadcasts */
#define BJNP_BC_RESPONSE_TIMEOUT 500 /* waiting time for broadc. responses */
#define BJNP_SCAN_BUF_MAX 65536 /* size of scanner data intermediate buffer */
#define BJNP_TIMEOUT_UDP 2 /* standard UDP timeout in seconds */
#define BJNP_TIMEOUT_TCP 4 /* standard TCP timeout in seconds */
#define USLEEP_MS 1000 /* sleep for 1 msec */
#define BJNP_TIMEOUT_UDP 2 /* standard UDP timeout */
#define BJNP_TIMEOUT_TCP 4 /* standard TCP timeout */
/* retries */
#define BJNP_MAX_SELECT_ATTEMPTS 3 /* max nr of retries on select (EINTR) */
#define BJNP_MAX_BROADCAST_ATTEMPTS 2 /* number of broadcast packets to be sent */
#define BJNP_UDP_RETRY_MAX 3 /* max nt of retries on a udp command */
#define BJNP_RESTART_POLL -1 /* lost poll dialog, restart dialog */
/* This works now, disable when it gives you problems */
#define PIXMA_BJNP_USE_STATUS 1
/* resturn values */
#define BJNP_RESTART_POLL -1 /* lost poll dialog, restart dialog */
/* loglevel definitions */
@ -285,6 +289,15 @@ typedef enum
BJNP_POLL_STATUS_RECEIVED = 2
} BJNP_polling_status_e;
typedef union
{
struct sockaddr_storage storage;
struct sockaddr sa;
struct sockaddr_in in;
struct sockaddr_in ipv4;
struct sockaddr_in6 ipv6;
} bjnp_sockaddr_t;
/*
* Device information for opened devices
*/
@ -295,7 +308,7 @@ typedef struct device_s
int active; /* connection is active (has open tcp connection */
int tcp_socket; /* open tcp socket for communcation to scannner */
int udp_socket; /* open udp socket for communication to scanner */
struct sockaddr * addr; /* ip-address of the scanner */
bjnp_sockaddr_t * addr; /* ip-address of the scanner */
int session_id; /* session id used in bjnp protocol for TCP packets */
int16_t serial; /* sequence number of command */
int bjnp_timeout; /* timeout (msec) for next poll command */
@ -309,5 +322,5 @@ typedef struct device_s
uint32_t dialog; /* poll dialog */
uint32_t status_key; /* key of last received status message */
#endif
} device_t;
} bjnp_device_t;