Fix malware regression for cmdline scanner introduced in PP/08.

Notification from Dr Andrew Aitchison.

(Also: make the PP/08 description more complete)

1 files changed, 2 insertions, 1 deletions

diff --git a/src/src/malware.c b/src/src/malware.c
index f82bef63e..6e8b3f36d 100644
--- a/src/src/malware.c
+++ b/src/src/malware.c
@@ -1098,7 +1098,8 @@ static int malware_internal(uschar **listptr, uschar *eml_filename, BOOL faking)
             "malware filename does not fit in buffer [malware_internal() cmdline]");
         return DEFER;
         }
-      p = Ustrrchr(eml_filename, '/');
+      Ustrcpy(file_name, eml_filename);
+      p = Ustrrchr(file_name, '/');
       if (p)
         *p = '\0';
       fits = string_format(commandline, sizeof(commandline), CS cmdline_scanner, file_name);