crawl_folders.h: Base header on implementation.

[nmh] / sbr / m_backup.c

diff --git a/sbr/m_backup.c b/sbr/m_backup.c
index c34c40974343f1b92e0de5c685090d916f05fc38..e8cb84bd8567b3c7c39514c770b7147477892873 100644 (file)
--- a/sbr/m_backup.c
+++ b/sbr/m_backup.c
@@ -1,28 +1,29 @@
-
-/*
- * m_backup.c -- construct a backup file
+/* m_backup.c -- construct a backup file
  *
  * This code is Copyright (c) 2002, by the authors of nmh.  See the
  * COPYRIGHT file in the root directory of the nmh distribution for
  * complete copyright information.
  */
 
-#include <h/mh.h>
+#include "h/mh.h"
+#include "r1bindex.h"
+#include "m_backup.h"
+#include "m_mktemp.h"
 
 
 char *
-m_backup (char *file)
+m_backup (const char *file)
 {
-    char *cp;
+    const char *cp;
     static char buffer[BUFSIZ];
 
-    if ((cp = r1bindex(file, '/')) == file)
+    if ((cp = r1bindex((char *) file, '/')) == file)
        snprintf(buffer, sizeof(buffer), "%s%s",
                BACKUP_PREFIX, cp);
     else
        snprintf(buffer, sizeof(buffer), "%.*s%s%s", (int)(cp - file), file,
                BACKUP_PREFIX, cp);
 
-    unlink(buffer);
+    (void) m_unlink(buffer);
     return buffer;
 }