tests: run the SOCKS test server on a dynamic port number

Closes #5266

1 files changed, 14 insertions, 6 deletions

diff --git a/tests/server/socksd.c b/tests/server/socksd.c
index 813eca665..e6e9c12b0 100644
--- a/tests/server/socksd.c
+++ b/tests/server/socksd.c
@@ -883,6 +883,7 @@ int main(int argc, char *argv[])
   curl_socket_t msgsock = CURL_SOCKET_BAD;
   int wrotepidfile = 0;
   const char *pidname = ".socksd.pid";
+  const char *portfile = NULL;
   bool juggle_again;
   int error;
   int arg = 1;
@@ -903,6 +904,11 @@ int main(int argc, char *argv[])
       if(argc>arg)
         pidname = argv[arg++];
     }
+    else if(!strcmp("--portfile", argv[arg])) {
+      arg++;
+      if(argc>arg)
+        portfile = argv[arg++];
+    }
     else if(!strcmp("--config", argv[arg])) {
       arg++;
       if(argc>arg)
@@ -943,12 +949,6 @@ int main(int argc, char *argv[])
       if(argc>arg) {
         char *endptr;
         unsigned long ulnum = strtoul(argv[arg], &endptr, 10);
-        if((endptr != argv[arg] + strlen(argv[arg])) ||
-           ((ulnum != 0UL) && ((ulnum < 1025UL) || (ulnum > 65535UL)))) {
-          fprintf(stderr, "socksd: invalid --port argument (%s)\n",
-                  argv[arg]);
-          return 0;
-        }
         port = curlx_ultous(ulnum);
         arg++;
       }
@@ -961,6 +961,7 @@ int main(int argc, char *argv[])
            " --version\n"
            " --logfile [file]\n"
            " --pidfile [file]\n"
+           " --portfile [file]\n"
            " --ipv4\n"
            " --ipv6\n"
            " --bindonly\n"
@@ -1013,6 +1014,13 @@ int main(int argc, char *argv[])
     goto socks5_cleanup;
   }
 
+  if(portfile) {
+    wrotepidfile = write_portfile(portfile, port);
+    if(!wrotepidfile) {
+      goto socks5_cleanup;
+    }
+  }
+
   do {
     juggle_again = incoming(sock);
   } while(juggle_again);