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SPDX: license tags (mostly by guesswork)
[exim.git]
/
src
/
src
/
transports
/
smtp_socks.c
diff --git
a/src/src/transports/smtp_socks.c
b/src/src/transports/smtp_socks.c
index 41dc781473236fa489e1dbf2732b0d5a61addaf6..353a6961885471e4f48e6cb72800331e50039304 100644
(file)
--- a/
src/src/transports/smtp_socks.c
+++ b/
src/src/transports/smtp_socks.c
@@
-2,8
+2,10
@@
* Exim - an Internet mail transport agent *
*************************************************/
* Exim - an Internet mail transport agent *
*************************************************/
+/* Copyright (c) The Exim Maintainers 2021 - 2022 */
/* Copyright (c) Jeremy Harris 2015 - 2018 */
/* See the file NOTICE for conditions of use and distribution. */
/* Copyright (c) Jeremy Harris 2015 - 2018 */
/* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-only */
/* SOCKS version 5 proxy, client-mode */
/* SOCKS version 5 proxy, client-mode */
@@
-160,20
+162,10
@@
socks_opts * sd;
socks_opts * lim = &proxies[nproxies];
long rnd, weights;
unsigned pri;
socks_opts * lim = &proxies[nproxies];
long rnd, weights;
unsigned pri;
-static BOOL srandomed = FALSE;
if (nproxies == 1) /* shortcut, if we have only 1 server */
return (proxies[0].is_failed ? -1 : 0);
if (nproxies == 1) /* shortcut, if we have only 1 server */
return (proxies[0].is_failed ? -1 : 0);
-/* init random */
-if (!srandomed)
- {
- struct timeval tv;
- gettimeofday(&tv, NULL);
- srandom((unsigned int)(tv.tv_usec/1000));
- srandomed = TRUE;
- }
-
/* scan for highest pri */
for (pri = 0, sd = proxies; sd < lim; sd++)
if (!sd->is_failed && sd->priority > pri)
/* scan for highest pri */
for (pri = 0, sd = proxies; sd < lim; sd++)
if (!sd->is_failed && sd->priority > pri)
@@
-186,11
+178,11
@@
for (weights = 0, sd = proxies; sd < lim; sd++)
if (weights == 0) /* all servers failed */
return -1;
if (weights == 0) /* all servers failed */
return -1;
-for (rnd = random
() % weights
, i = 0; i < nproxies; i++)
+for (rnd = random
_number(weights)
, i = 0; i < nproxies; i++)
{
sd = &proxies[i];
if (!sd->is_failed && sd->priority == pri)
{
sd = &proxies[i];
if (!sd->is_failed && sd->priority == pri)
- if ((rnd -= sd->weight) <
=
0)
+ if ((rnd -= sd->weight) < 0)
return i;
}
return i;
}
@@
-230,7
+222,7
@@
const uschar * state;
uschar buf[24];
socks_opts proxies[32]; /* max #proxies handled */
unsigned nproxies;
uschar buf[24];
socks_opts proxies[32]; /* max #proxies handled */
unsigned nproxies;
-socks_opts * sob;
+socks_opts * sob
= NULL
;
unsigned size;
blob early_data;
unsigned size;
blob early_data;
@@
-267,6
+259,7
@@
for (nproxies = 0;
while ((option = string_nextinlist(&proxy_spec, &subsep, NULL, 0)))
socks_option(sob, option);
}
while ((option = string_nextinlist(&proxy_spec, &subsep, NULL, 0)))
socks_option(sob, option);
}
+if (!sob) return -1;
/* Set up the socks protocol method-selection message,
for sending on connection */
/* Set up the socks protocol method-selection message,
for sending on connection */
@@
-282,7
+275,7
@@
for(;;)
{
int idx;
host_item proxy;
{
int idx;
host_item proxy;
-
int proxy_af
;
+
smtp_connect_args sc = {.sock = -1}
;
if ((idx = socks_get_proxy(proxies, nproxies)) < 0)
{
if ((idx = socks_get_proxy(proxies, nproxies)) < 0)
{
@@
-294,11
+287,16
@@
for(;;)
/* bodge up a host struct for the proxy */
proxy.address = proxy.name = sob->proxy_host;
/* bodge up a host struct for the proxy */
proxy.address = proxy.name = sob->proxy_host;
- proxy_af = Ustrchr(sob->proxy_host, ':') ? AF_INET6 : AF_INET;
+ proxy.port = sob->port;
+
+ sc.tblock = tb;
+ sc.ob = ob;
+ sc.host = &proxy;
+ sc.host_af = Ustrchr(sob->proxy_host, ':') ? AF_INET6 : AF_INET;
+ sc.interface = interface;
/*XXX we trust that the method-select command is idempotent */
/*XXX we trust that the method-select command is idempotent */
- if ((fd = smtp_sock_connect(&proxy, proxy_af, sob->port,
- interface, tb, sob->timeout, &early_data)) >= 0)
+ if ((fd = smtp_sock_connect(&sc, sob->timeout, &early_data)) >= 0)
{
proxy_local_address = string_copy(proxy.address);
proxy_local_port = sob->port;
{
proxy_local_address = string_copy(proxy.address);
proxy_local_port = sob->port;
@@
-330,7
+328,7
@@
if ( buf[0] != 5
)
goto proxy_err;
)
goto proxy_err;
-
{
+ {
union sockaddr_46 sin;
(void) ip_addr(&sin, host_af, host->address, port);
union sockaddr_46 sin;
(void) ip_addr(&sin, host_af, host->address, port);
@@
-353,7
+351,7
@@
if ( buf[0] != 5
&sin.v4.sin_port, sizeof(sin.v4.sin_port));
size = 4+sizeof(sin.v4.sin_addr.s_addr)+sizeof(sin.v4.sin_port);
}
&sin.v4.sin_port, sizeof(sin.v4.sin_port));
size = 4+sizeof(sin.v4.sin_addr.s_addr)+sizeof(sin.v4.sin_port);
}
-
}
+ }
state = US"connect";
HDEBUG(D_transport|D_acl|D_v)
state = US"connect";
HDEBUG(D_transport|D_acl|D_v)