diff options
| -rw-r--r-- | shell/hush.c | 52 |
1 files changed, 25 insertions, 27 deletions
diff --git a/shell/hush.c b/shell/hush.c index da10a09..92c79b8 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -2423,35 +2423,33 @@ static void set_vars_and_save_old(char **strings) char *eq; eq = strchr(*s, '='); - if (eq) { - var_pp = get_ptr_to_local_var(*s, eq - *s); - 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; - } - /* below, set_local_var() with nest level will - * "shadow" (remove) this variable from - * global linked list. - */ - } - debug_printf_env("%s: env override '%s'/%u\n", __func__, *s, G.var_nest_level); - set_local_var(*s, (G.var_nest_level << SETFLAG_VARLVL_SHIFT) | SETFLAG_EXPORT); - } else if (HUSH_DEBUG) { + if (HUSH_DEBUG && !eq) bb_error_msg_and_die("BUG in varexp4"); + var_pp = get_ptr_to_local_var(*s, eq - *s); + 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; + } + /* below, set_local_var() with nest level will + * "shadow" (remove) this variable from + * global linked list. + */ } + debug_printf_env("%s: env override '%s'/%u\n", __func__, *s, G.var_nest_level); + set_local_var(*s, (G.var_nest_level << SETFLAG_VARLVL_SHIFT) | SETFLAG_EXPORT); s++; next: ; } |