Commit a319f7c1 authored by Karl Heuer's avatar Karl Heuer

(Fopen_network_stream): Use getaddrinfo.

parent bab630c9
......@@ -841,7 +841,7 @@ DEFUN ("set-process-window-size", Fset_process_window_size,
CHECK_NATNUM (height, 0);
CHECK_NATNUM (width, 0);
if (set_window_size (XINT (XPROCESS (process)->infd),
XINT (height), XINT(width)) <= 0)
XINT (height), XINT (width)) <= 0)
return Qnil;
else
return Qt;
......@@ -1815,15 +1815,22 @@ Fourth arg SERVICE is name of the service desired, or an integer\n\
{
Lisp_Object proc;
register int i;
#ifndef HAVE_GETADDRINFO
struct sockaddr_in address;
struct servent *svc_info;
struct hostent *host_info_ptr, host_info;
char *(addr_list[2]);
IN_ADDR numeric_addr;
int s, outch, inch;
char errstring[80];
int port;
struct hostent host_info_fixed;
int port;
#else /* ! HAVE_GETADDRINFO */
struct addrinfo hints, *res, *lres;
int ret = 0;
int xerrno = 0;
char *portstring, portbuf [128];
#endif /* ! HAVE_GETADDRINFO */
int s, outch, inch;
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
int retry = 0;
int count = specpdl_ptr - specpdl;
......@@ -1836,6 +1843,23 @@ Fourth arg SERVICE is name of the service desired, or an integer\n\
GCPRO4 (name, buffer, host, service);
CHECK_STRING (name, 0);
CHECK_STRING (host, 0);
#ifdef HAVE_GETADDRINFO
/*
* SERVICE can either be a string or int.
* Convert to a C string for later use by getaddrinfo.
*/
if (INTEGERP (service))
{
sprintf (portbuf, "%d", XINT (service));
portstring = portbuf;
}
else
{
CHECK_STRING (service, 0);
portstring = XSTRING (service)->data;
}
#else /* ! HAVE_GETADDRINFO */
if (INTEGERP (service))
port = htons ((unsigned short) XINT (service));
else
......@@ -1846,6 +1870,8 @@ Fourth arg SERVICE is name of the service desired, or an integer\n\
error ("Unknown service \"%s\"", XSTRING (service)->data);
port = svc_info->s_port;
}
#endif /* ! HAVE_GETADDRINFO */
/* Slow down polling to every ten seconds.
Some kernels have a bug which causes retrying connect to fail
......@@ -1855,6 +1881,91 @@ Fourth arg SERVICE is name of the service desired, or an integer\n\
#endif
#ifndef TERM
#ifdef HAVE_GETADDRINFO
{
immediate_quit = 1;
QUIT;
memset (&hints, 0, sizeof (hints));
hints.ai_flags = AI_NUMERICHOST;
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = 0;
ret = getaddrinfo (XSTRING (host)->data, portstring, &hints, &res);
if (!ret) /* numeric */
{
freeaddrinfo (res);
hints.ai_flags = AI_CANONNAME;
}
else /* non-numeric */
{
hints.ai_flags = 0;
}
ret = getaddrinfo (XSTRING (host)->data, portstring, &hints, &res);
if (ret)
{
error ("%s/%s %s", XSTRING (host)->data, portstring,
gai_strerror (ret));
}
immediate_quit = 0;
}
for (lres = res; lres ; lres = lres->ai_next)
{
s = socket (lres->ai_family, lres->ai_socktype, lres->ai_protocol);
if (s < 0)
report_file_error ("error creating socket", Fcons (name, Qnil));
/* Kernel bugs (on Ultrix at least) cause lossage (not just EINTR)
when connect is interrupted. So let's not let it get interrupted.
Note we do not turn off polling, because polling is only used
when not interrupt_input, and thus not normally used on the systems
which have this bug. On systems which use polling, there's no way
to quit if polling is turned off. */
if (interrupt_input)
unrequest_sigio ();
loop:
immediate_quit = 1;
QUIT;
ret = connect (s, lres->ai_addr, lres->ai_addrlen);
if (ret == -1 && errno != EISCONN)
{
xerrno = errno;
immediate_quit = 0;
if (errno == EINTR)
goto loop;
if (errno == EADDRINUSE && retry < 20)
{
/* A delay here is needed on some FreeBSD systems,
and it is harmless, since this retrying takes time anyway
and should be infrequent. */
Fsleep_for (make_number (1), Qnil);
retry++;
goto loop;
}
close (s);
}
if (ret == 0) /* We got a valid connect */
break;
} /* address loop */
freeaddrinfo (res);
if (ret != 0)
{
if (interrupt_input)
request_sigio ();
errno = xerrno;
report_file_error ("connection failed",
Fcons (host, Fcons (name, Qnil)));
}
#else /* ! HAVE_GETADDRINFO */
while (1)
{
#ifdef TRY_AGAIN
......@@ -1945,6 +2056,7 @@ Fourth arg SERVICE is name of the service desired, or an integer\n\
report_file_error ("connection failed",
Fcons (host, Fcons (name, Qnil)));
}
#endif /* ! HAVE_GETADDRINFO */
immediate_quit = 0;
......@@ -2807,7 +2919,7 @@ read_process_output (proc, channel)
if (vs)
{
if (!vs->iosb[0])
return(0); /* Really weird if it does this */
return (0); /* Really weird if it does this */
if (!(vs->iosb[0] & 1))
return -1; /* I/O error */
}
......
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