diff -aur samba-3.0.9.ori/source/utils/smbcacls.c samba-3.0.9/source/utils/smbcacls.c
--- samba-3.0.9.ori/source/utils/smbcacls.c	2004-12-19 18:48:25.000000000 +0100
+++ samba-3.0.9/source/utils/smbcacls.c	2004-12-27 18:39:21.265450084 +0100
@@ -826,15 +826,16 @@
 	pstrcpy(filename, poptGetArg(pc));
 
 	all_string_sub(path,"/","\\",0);
+	if(strncmp(path, "\\\\", 2)) {
+		printf("Invalid argument: %s\n", path);
+		return -1;
+	}
 
 	fstrcpy(server,path+2);
 	share = strchr_m(server,'\\');
 	if (!share) {
-		share = strchr_m(server,'/');
-		if (!share) {
-			printf("Invalid argument: %s\n", share);
-			return -1;
-		}
+		printf("Invalid argument: %s\n", share);
+		return -1;
 	}
 
 	*share = 0;
diff -aur samba-3.0.9.ori/source/utils/smbcquotas.c samba-3.0.9/source/utils/smbcquotas.c
--- samba-3.0.9.ori/source/utils/smbcquotas.c	2004-11-16 04:03:32.000000000 +0100
+++ samba-3.0.9/source/utils/smbcquotas.c	2004-12-27 18:40:38.320023516 +0100
@@ -491,15 +491,16 @@
 	pstrcpy(path, poptGetArg(pc));
 
 	all_string_sub(path,"/","\\",0);
+	if(strncmp(path, "\\\\", 2)) {
+		printf("Invalid argument: %s\n", path);
+		exit(EXIT_PARSE_ERROR);
+	}
 
 	pstrcpy(server,path+2);
 	share = strchr_m(server,'\\');
 	if (!share) {
-		share = strchr_m(server,'/');
-		if (!share) {
-			printf("Invalid argument: %s\n", share);
-			exit(EXIT_PARSE_ERROR);
-		}
+		printf("Invalid argument: %s\n", share);
+		exit(EXIT_PARSE_ERROR);
 	}
 
 	*share = 0;