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#include "timeoutconn.h"
#include "error.h"
#include "iopause.h"
#include "ip.h"
#include "ndelay.h"
#include "socket_if.h"
/**
@file timeoutconn.c
@author djb, fefe, feh
@source qmail
@brief socket read/write timeout handling; return code of iopause considered
*/
int timeoutconn4(int s, char ip[4], uint16 port, unsigned int timeout)
{
struct taia now;
struct taia deadline;
iopause_fd x;
unsigned int p = 0;
if (socket_connect4(s, ip, port) == -1) {
if ((errno != EWOULDBLOCK) && (errno != EINPROGRESS)) return -1;
x.fd = s;
x.events = IOPAUSE_WRITE;
taia_now(&now);
taia_uint(&deadline, timeout);
taia_add(&deadline, &now, &deadline);
for (;;) {
taia_now(&now);
iopause(&x, 1, &deadline, &now);
if (x.revents) break; /* 's' available */
if (taia_less(&deadline, &now)) {
errno = ETIMEDOUT; /* note that connect attempt is continuing */
return -1;
}
p++;
}
if (!socket_connected(s)) return -1;
}
if (ndelay_off(s) == -1) return -1;
return 0;
}
int timeoutconn6(int s, char ip[16], uint16 port, unsigned int timeout, uint32 netif)
{
struct taia now;
struct taia deadline;
iopause_fd x;
unsigned int p = 0;
if (socket_connect6(s, ip, port, netif) == -1) {
if ((errno != EWOULDBLOCK) && (errno != EINPROGRESS)) return -1;
x.fd = s;
x.events = IOPAUSE_WRITE;
taia_now(&now);
taia_uint(&deadline, timeout);
taia_add(&deadline, &now, &deadline);
for (;;) {
taia_now(&now);
iopause(&x, 1, &deadline, &now);
if (x.revents) break; /* 's' available */
if (taia_less(&deadline, &now)) {
errno = ETIMEDOUT; /* note that connect attempt is continuing */
return -1;
}
p++;
}
if (!socket_connected(s)) return -1;
}
if (ndelay_off(s) == -1) return -1;
return 0;
}
int timeoutconn(int s, char ip[16], uint16 port, unsigned int timeout, uint32 netif)
{
struct taia now;
struct taia deadline;
iopause_fd x;
unsigned int p = 0;
int r;
if (ip6_isv4mapped(ip))
r = socket_connect4(s, ip + 12, port);
else
r = socket_connect6(s, ip, port, netif);
if (r == -1) {
if ((errno != EWOULDBLOCK) && (errno != EINPROGRESS)) return -1;
x.fd = s;
x.events = IOPAUSE_WRITE;
taia_now(&now);
taia_uint(&deadline, timeout);
taia_add(&deadline, &now, &deadline);
for (;;) {
taia_now(&now);
iopause(&x, 1, &deadline, &now);
if (x.revents) break; /* 's' available */
if (taia_less(&deadline, &now)) {
errno = ETIMEDOUT; /* note that connect attempt is continuing */
return -1;
}
p++;
}
if (!socket_connected(s)) return -1;
}
if (ndelay_off(s) == -1) return -1;
return 0;
}
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