nwbind: use build date in server information

Keep the server information fields semantically distinct after replacing
the legacy KOAN/14-Jun-03 strings.

The revision string now reports the Mars NWE release version, for
example:

  Mars NWE 0.99.pl28

and the separate revision-date field is populated from a CMake-provided
build date in the traditional NetWare-style format, for example:

  27-May-26

The build date can be overridden through CMake for reproducible builds;
otherwise it defaults to the current UTC build date.

src/CMakeLists.txt

@@ -18,6 +18,7 @@ add_definitions(
         -D_VERS_H_=${VERSION_MAJOR}
         -D_VERS_L_=${VERSION_MINOR}
         -D_VERS_P_=${VERSION_PATCH}
+        -DMARS_NWE_BUILD_DATE=\"${MARS_NWE_BUILD_DATE}\"
     )
 
 IF(MARS_NWE_QUOTA_SUPPORT)

src/nwbind.c

@@ -1,5 +1,9 @@
 /* nwbind.c */
 
+#ifndef MARS_NWE_BUILD_DATE
+#define MARS_NWE_BUILD_DATE "unknown"
+#endif
+
 /* NCP Bindery SUB-SERVER */
 /* authentification and some message and queue handling */
 
@@ -1748,17 +1752,13 @@ static void handle_fxx(int gelen, int func)
                   } break;
 
      case 0xc9 :  { /* GET FILE SERVER DESCRIPTION STRINGs */
-                   char *company       = "KoanSoftware.com";
-                   char *revision      = "Version %d.%d.pl%d [KOAN]";	// (M@K)
-                   char revision_date[64];
-                   char *copyright     = "(C)M.Stover";
+                   char *company       = "www.disconnected-by-peer.at";
+                   char *revision      = "Mars NWE %d.%d.pl%d";
+                   char *revision_date = MARS_NWE_BUILD_DATE;
+                   char *copyright     = "(C) Martin Stover and contributors";
+
                    int  k=strlen(company)+1;
                    int  l;
-		 
-                   snprintf(revision_date, sizeof(revision_date),
-                            "mars-nwe-%d.%d.pl%d",
-                            _VERS_H_, _VERS_L_, _VERS_P_);
-                   revision_date[sizeof(revision_date)-1] = '\0';
 
                    memset(responsedata, 0, 512);
                    strcpy(responsedata,   company);