package/busybox/patches/250-ash_export-n.patch

   1 --- a/shell/ash.c
   2 +++ b/shell/ash.c
   3 @@ -11875,8 +11875,17 @@
   4         const char *p;
   5         char **aptr;
   6         int flag = argv[0][0] == 'r'? VREADONLY : VEXPORT;
   7 +       int mask = ~0;
   8 +       int nopt;
   9 +       while ((nopt = nextopt("np"))) {
  10 +               if (nopt == 'n') {
  11 +                               mask = ~flag;
  12 +               } else { /* p */
  13 +                       break;
  14 +               }
  15 +       }
  16
  17 -       if (nextopt("p") != 'p') {
  18 +       if (nopt != 'p') {
  19                 aptr = argptr;
  20                 name = *aptr;
  21                 if (name) {
  22 @@ -11888,10 +11897,12 @@
  23                                         vp = *findvar(hashvar(name), name);
  24                                         if (vp) {
  25                                                 vp->flags |= flag;
  26 +                                               vp->flags &= mask;
  27                                                 continue;
  28                                         }
  29                                 }
  30                                 setvar(name, p, flag);
  31 +                               setvar(name, p, flag & mask);
  32                         } while ((name = *++aptr) != NULL);
  33                         return 0;
  34                 }