cvs commit: src/lib/libutil Makefile clean_environment.3 clean_environment.c

[Tim Kientzle]

kientzle    2004/02/26 14:41:47 PST

  FreeBSD src repository

  Modified files:
    lib/libutil          Makefile 
  Added files:
    lib/libutil          clean_environment.3 clean_environment.c 
  Log:
  Add a clean_environment call to libutil.
  
  This function removes all environment variables except
  the ones listed on a "whitelist."
  
  The function accepts two whitelist arguments.
  If the first is NULL, a built-in default list will be
  used.  This allows callers to get a variety of behaviors:
    * Default screening: provide NULL for both lists
    * Custom screening: provide a custom list for the first argument
    * Modified default screening: provide NULL for first arg,
       list of additional variables to preserve in the second arg
  
  Idea from: Jacques Vidrine
  
  MFC after: 2 weeks
  
  Revision  Changes    Path
  1.54      +4 -4      src/lib/libutil/Makefile
  1.1       +86 -0     src/lib/libutil/clean_environment.3 (new)
  1.1       +121 -0    src/lib/libutil/clean_environment.c (new)