[exim-cvs] Fix ClamAV command send

Commit:     9614a79a3fa1dde3f72c92c7638b590457e84240
Parent:     60a4ceafecdf10647d01127bdae8252fc5b84508
Author:     Jeremy Harris <jgh146exb@???>
AuthorDate: Mon Aug 9 13:58:48 2021 +0100
Committer:  Jeremy Harris <jgh146exb@???>
CommitDate: Mon Aug 9 13:58:48 2021 +0100

    Fix ClamAV command send

    Broken-by: 64cc4714ab
---
 src/src/malware.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/src/malware.c b/src/src/malware.c
index a6e354b..e696f7a 100644
--- a/src/src/malware.c
+++ b/src/src/malware.c
@@ -1559,7 +1559,11 @@ badseek:  err = errno;
       if (!use_scan_command)
     { cmd_str.data = US"zINSTREAM"; cmd_str.len = 10; }
       else
-    cmd_str.data = string_sprintf("SCAN %s\n%n", eml_filename, &cmd_str.len);
+    {
+    int n;
+    cmd_str.data = string_sprintf("SCAN %s\n%n", eml_filename, &n);
+    cmd_str.len = n;        /* .len is a size_t */
+    }

       /* We have some network servers specified */
       if (num_servers)
@@ -1816,7 +1820,7 @@ badseek:  err = errno;
       if (*p) ++p;

       /* colon in returned output? */
-      if(!(p = Ustrchr(av_buffer,':')))
+      if (!(p = Ustrchr(av_buffer,':')))
     return m_panic_defer(scanent, CUS callout_address, string_sprintf(
           "ClamAV returned malformed result (missing colon): %s",
           av_buffer));