ash: fix a SEGV in ${#1}
function old new delta
varvalue 760 805 +45
evalvar 648 603 -45
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash.c b/shell/ash.c
index 90fb00f..c5ad969 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -6746,6 +6746,14 @@
len = strlen(p);
if (!(subtype == VSPLUS || subtype == VSLENGTH))
memtodest(p, len, syntax, quotes);
+#if ENABLE_UNICODE_SUPPORT
+ if (subtype == VSLENGTH && len > 0) {
+ reinit_unicode_for_ash();
+ if (unicode_status == UNICODE_ON) {
+ len = unicode_strlen(p);
+ }
+ }
+#endif
return len;
}
@@ -6829,15 +6837,7 @@
varunset(p, var, 0, 0);
if (subtype == VSLENGTH) {
- ssize_t n = varlen;
- if (n > 0) {
- reinit_unicode_for_ash();
- if (unicode_status == UNICODE_ON) {
- const char *val = lookupvar(var);
- n = unicode_strlen(val);
- }
- }
- cvtnum(n > 0 ? n : 0);
+ cvtnum(varlen > 0 ? varlen : 0);
goto record;
}