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-rw-r--r--src/gsm/gsm29118.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/gsm/gsm29118.c b/src/gsm/gsm29118.c
index ca210fbf..56e74738 100644
--- a/src/gsm/gsm29118.c
+++ b/src/gsm/gsm29118.c
@@ -196,9 +196,14 @@ static int msgb_sgsap_name_put(struct msgb *msg, enum sgsap_iei iei, const char
{
uint8_t buf[APN_MAXLEN];
uint8_t len;
+ int rc;
+
/* encoding is like DNS names, which is like APN fields */
memset(buf, 0, sizeof(buf));
- len = osmo_apn_from_str(buf, sizeof(buf), name);
+ rc = osmo_apn_from_str(buf, sizeof(buf), name);
+ if (rc < 0)
+ return -1;
+ len = (uint8_t)rc;
/* Note: While the VLR-Name (see 3GPP TS 29.118, chapter 9.4.22) has
* a flexible length, the MME-Name has a fixed size of 55 octets. (see