laforge has submitted this change and it was merged. ( 
https://gerrit.osmocom.org/c/osmo-msc/+/13489 )

Change subject: libmsc/db.c: warn user about SMS text truncation
......................................................................

libmsc/db.c: warn user about SMS text truncation

In general, neither TP-User-Data nor decoded text should be
truncated. If the SMSC's database for some reason does contain
such weird messages, let's at least let the user know about it.

Change-Id: I75e852ebe44ba4784572cbffa029e13f0d3c430c
---
M src/libmsc/db.c
1 file changed, 10 insertions(+), 0 deletions(-)

Approvals:
  laforge: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/src/libmsc/db.c b/src/libmsc/db.c
index a12889b..705af61 100644
--- a/src/libmsc/db.c
+++ b/src/libmsc/db.c
@@ -229,6 +229,7 @@
 {
        const unsigned char *user_data;
        unsigned int user_data_len;
+       unsigned int text_len;
        const char *text;

        /* Retrieve TP-UDL (User-Data-Length) in octets (regardless of DCS) */
@@ -247,6 +248,15 @@
                memcpy(sms->user_data, user_data, user_data_len);
        }

+       /* Retrieve the text length (excluding '\0') */
+       text_len = dbi_result_get_field_length(result, "text");
+       if (text_len >= sizeof(sms->text)) {
+               LOGP(DDB, LOGL_ERROR,
+                    "SMS text length %u is too big, truncating to %zu\n",
+                    text_len, sizeof(sms->text) - 1);
+               /* OSMO_STRLCPY_ARRAY() does truncation for us */
+       }
+
        /* Retrieve the text parsed from TP-UD (User-Data) */
        text = dbi_result_get_string(result, "text");
        if (text)

--
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Gerrit-Project: osmo-msc
Gerrit-Branch: master
Gerrit-Change-Id: I75e852ebe44ba4784572cbffa029e13f0d3c430c
Gerrit-Change-Number: 13489
Gerrit-PatchSet: 8
Gerrit-Owner: fixeria <[email protected]>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <[email protected]>
Gerrit-MessageType: merged

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