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--- a/shell/ash.c
+++ b/shell/ash.c
@@ -12159,8 +12159,17 @@ exportcmd(int argc UNUSED_PARAM, char **
const char *p;
char **aptr;
int flag = argv[0][0] == 'r' ? VREADONLY : VEXPORT;
+ int mask = ~0;
+ int nopt;
+ while ((nopt = nextopt("np"))) {
+ if (nopt == 'n') {
+ mask = ~flag;
+ } else { /* p */
+ break;
+ }
+ }
- if (nextopt("p") != 'p') {
+ if (nopt != 'p') {
aptr = argptr;
name = *aptr;
if (name) {
@@ -12172,10 +12181,12 @@ exportcmd(int argc UNUSED_PARAM, char **
vp = *findvar(hashvar(name), name);
if (vp) {
vp->flags |= flag;
+ vp->flags &= mask;
continue;
}
}
setvar(name, p, flag);
+ setvar(name, p, flag & mask);
} while ((name = *++aptr) != NULL);
return 0;
}
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