The number of bytes in an utf-8 string is an upper limit for the number of words in the equivalent utf-16 string. In so far the inumbant coding works correctly. For non-ASCII characters the utf-16 string is shorter. With the patch only the necessary buffer size is allocated for the load options.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- v2 no change --- cmd/bootefi.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/cmd/bootefi.c b/cmd/bootefi.c index e169f5edc0..a0a8a7cdac 100644 --- a/cmd/bootefi.c +++ b/cmd/bootefi.c @@ -116,18 +116,20 @@ static void set_load_options(struct efi_loaded_image *loaded_image_info, { size_t size; const char *env = env_get(env_var); + u16 *pos;
loaded_image_info->load_options = NULL; loaded_image_info->load_options_size = 0; if (!env) return; - size = strlen(env) + 1; + size = utf8_utf16_strlen(env) + 1; loaded_image_info->load_options = calloc(size, sizeof(u16)); if (!loaded_image_info->load_options) { printf("ERROR: Out of memory\n"); return; } - utf8_to_utf16(loaded_image_info->load_options, (u8 *)env, size); + pos = loaded_image_info->load_options; + utf8_utf16_strcpy(&pos, env); loaded_image_info->load_options_size = size * 2; }