Hello Jenkins Builder,

I'd like you to reexamine a change.  Please visit

    https://gerrit.osmocom.org/4354

to look at the new patch set (#2).

Make osmo_apn_to_str() more robust

Previously it would crash on NULL input. Let's handle it gracefully
instead. Corresponding test case is also added.

Change-Id: I587153e49d1c92128fac3ae5c124adba9592378e
---
M src/gsm/apn.c
M tests/gprs/gprs_test.c
2 files changed, 10 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/54/4354/2

diff --git a/src/gsm/apn.c b/src/gsm/apn.c
index 8d4b2bf..f8303db 100644
--- a/src/gsm/apn.c
+++ b/src/gsm/apn.c
@@ -53,6 +53,9 @@
        char *str = out_str;
        size_t rest_chars = apn_enc_len;
 
+       if (!apn_enc)
+               return NULL;
+
        while (rest_chars > 0 && apn_enc[0]) {
                size_t label_size = apn_enc[0];
                if (label_size + 1 > rest_chars)
diff --git a/tests/gprs/gprs_test.c b/tests/gprs/gprs_test.c
index be80e5c..6f16fb2 100644
--- a/tests/gprs/gprs_test.c
+++ b/tests/gprs/gprs_test.c
@@ -91,6 +91,13 @@
        }
 
        {
+               /* NULL input */
+               uint8_t input[] = { 0x1, 65 };
+               char *output = "LOL";
+               OSMO_ASSERT(osmo_apn_to_str(output, NULL, ARRAY_SIZE(input) - 
1) == NULL);
+       }
+
+       {
                uint8_t input[] = { 0x3, 65, 66, 67, 0x2, 90, 122 };
                const char *output = "ABC.Zz";
                char tmp[strlen(output) + 1];

-- 
To view, visit https://gerrit.osmocom.org/4354
To unsubscribe, visit https://gerrit.osmocom.org/settings

Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I587153e49d1c92128fac3ae5c124adba9592378e
Gerrit-PatchSet: 2
Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Owner: Max <[email protected]>
Gerrit-Reviewer: Jenkins Builder

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