From: Heiko Schlittermann (HS12-RIPE) <hs@schlittermann.de>
Date: Fri, 9 Dec 2016 22:56:09 +0000 (+0100)
Subject: Constify config_filename
X-Git-Tag: exim-4_91_RC1~148^2~42^2~11
X-Git-Url: https://git.exim.org/users/heiko/exim.git/commitdiff_plain/007bc90f5bb03143434c0528e551c1b2f81d3636?ds=sidebyside

Constify config_filename
---

diff --git a/src/src/globals.c b/src/src/globals.c
index b862015a2..23bd6900c 100644
--- a/src/src/globals.c
+++ b/src/src/globals.c
@@ -508,7 +508,7 @@ int     clmacro_count          = 0;
 uschar *clmacros[MAX_CLMACROS];
 BOOL    config_changed         = FALSE;
 FILE   *config_file            = NULL;
-uschar *config_filename        = NULL;
+const uschar *config_filename  = NULL;
 int     config_lineno          = 0;
 #ifdef CONFIGURE_GROUP
 gid_t   config_gid             = CONFIGURE_GROUP;
diff --git a/src/src/globals.h b/src/src/globals.h
index b3747a84a..6e6a5c224 100644
--- a/src/src/globals.h
+++ b/src/src/globals.h
@@ -281,7 +281,7 @@ extern uschar *clmacros[];             /* Copy of them, for re-exec */
 extern int     connection_max_messages;/* Max down one SMTP connection */
 extern BOOL    config_changed;         /* True if -C used */
 extern FILE   *config_file;            /* Configuration file */
-extern uschar *config_filename;        /* Configuration file name */
+extern const uschar *config_filename;  /* Configuration file name */
 extern gid_t   config_gid;             /* Additional group owner */
 extern int     config_lineno;          /* Line number */
 extern uschar *config_main_filelist;   /* List of possible config files */
diff --git a/src/src/readconf.c b/src/src/readconf.c
index 27a834b3f..9c3f1a4bc 100644
--- a/src/src/readconf.c
+++ b/src/src/readconf.c
@@ -27,7 +27,7 @@ static void readconf_options_auths(void);
 
 typedef struct config_file_item {
   struct config_file_item *next;
-  uschar *filename;
+  const uschar *filename;
   FILE *file;
   int lineno;
 } config_file_item;