diplodocus.org Git - nmh/blob - docs/historical/mh-6.8.5/sbr/m_backup.c

   1 /* m_backup.c - construct a backup file */
   2
   3 #include "../h/mh.h"
   4 #include <stdio.h>
   5
   6
   7 char   *m_backup (file)
   8 register char   *file;
   9 {
  10     register char  *cp;
  11     static char buffer[BUFSIZ];
  12
  13     if ((cp = r1bindex (file, '/')) == file)
  14         (void) sprintf (buffer, "%s%s", SBACKUP, cp);
  15     else
  16         (void) sprintf (buffer, "%.*s%s%s", cp - file, file, SBACKUP, cp);
  17     (void) (unlink (buffer));
  18
  19     return buffer;
  20 }