gdb/environ.h

   1
   2 /* We manipulate environments represented as these structures.  */
   3
   4 struct environ
   5 {
   6   /* Number of usable slots allocated in VECTOR.
   7      VECTOR always has one slot not counted here,
   8      to hold the terminating zero.  */
   9   int allocated;
  10   /* A vector of slots, ALLOCATED + 1 of them.
  11      The first few slots contain strings "VAR=VALUE"
  12      and the next one contains zero.
  13      Then come some unused slots.  */
  14   char **vector;
  15 };
  16
  17 struct environ *make_environ ();
  18 void free_environ ();
  19 void init_environ ();
  20 char *get_in_environ ();
  21 void set_in_environ ();
  22 void unset_in_environ ();
  23 char **environ_vector ();