diff options
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/shell/hush.c b/shell/hush.c index 55e581e16..f6da826d3 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -2287,7 +2287,18 @@ static struct variable *set_vars_and_save_old(char **strings) if (var_pp) { var_p = *var_pp; if (var_p->flg_read_only) { + char **p; bb_error_msg("%s: readonly variable", *s); + /* + * "VAR=V BLTIN" unsets VARs after BLTIN completes. + * If VAR is readonly, leaving it in the list + * after asssignment error (msg above) + * causes doubled error message later, on unset. + */ + debug_printf_env("removing/freeing '%s' element\n", *s); + free(*s); + p = s; + do { *p = p[1]; p++; } while (*p); goto next; } /* Remove variable from global linked list */ |