lib/vsprintf: print '?' for illegal Unicode sequence
Commit 0e66c10a7d80 ("lib: vsprintf: avoid overflow printing UTF16
strings") broke the Unicode unit tests: an illegal UTF16 code point
should be printed as '?'.
Fixes: 0e66c10a7d80 ("lib: vsprintf: avoid overflow printing UTF16 strings")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index de5db1a..1b6c154 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -288,6 +288,8 @@
for (i = 0; i < len && buf + utf16_utf8_strnlen(str, 1) <= end; ++i) {
s32 s = utf16_get(&str);
+ if (s < 0)
+ s = '?';
utf8_put(s, &buf);
}
for (; len < field_width; --field_width)