gsm_utils.c: in 7bit decoding, first check if the last character was an extension character before doing anything else
diff --git a/src/gsm/gsm_utils.c b/src/gsm/gsm_utils.c
index 6af0a5f..8b1fae0 100644
--- a/src/gsm/gsm_utils.c
+++ b/src/gsm/gsm_utils.c
@@ -146,15 +146,15 @@
(user_data[((i + shift) * 7) >> 3] >>
(((i + shift) * 7) & 7))) & 0x7f;
- if (c == 0x1b && i + 1 < septet_l) {
- next_is_ext = 1;
- continue;
- }
-
/* this is an extension character */
if (next_is_ext) {
next_is_ext = 0;
*(text++) = gsm_7bit_alphabet[0x7f + c];
+ continue;
+ }
+
+ if (c == 0x1b && i + 1 < septet_l) {
+ next_is_ext = 1;
} else {
*(text++) = gsm_septet_lookup(c);
}