tidying

[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..5aff62c15761eabba25c23d113e78d1ca6d91341 100644 (file)
--- a/src/src/transports/smtp_socks.c
+++ b/src/src/transports/smtp_socks.c
@@ -3,6 +3,7 @@
 *************************************************/
 
 /* Copyright (c) Jeremy Harris 2015 - 2018 */
+/* Copyright (c) The Exim Maintainers 2021 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* SOCKS version 5 proxy, client-mode */
@@ -160,20 +161,10 @@ socks_opts * sd;
 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);
 
-/* 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)
@@ -186,11 +177,11 @@ for (weights = 0, sd = proxies; sd < lim; sd++)
 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)
-    if ((rnd -= sd->weight) <= 0)
+    if ((rnd -= sd->weight) < 0)
       return i;
   }
 
@@ -230,7 +221,7 @@ const uschar * state;
 uschar buf[24];
 socks_opts proxies[32];                        /* max #proxies handled */
 unsigned nproxies;
-socks_opts * sob;
+socks_opts * sob = NULL;
 unsigned size;
 blob early_data;
 
@@ -267,6 +258,7 @@ for (nproxies = 0;
   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 */
@@ -330,7 +322,7 @@ if (  buf[0] != 5
    )
   goto proxy_err;
 
-  {
+ {
   union sockaddr_46 sin;
   (void) ip_addr(&sin, host_af, host->address, port);
 
@@ -353,7 +345,7 @@ 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);
     }
-  }
+ }
 
 state = US"connect";
 HDEBUG(D_transport|D_acl|D_v)