diff options
Diffstat (limited to 'src/lib/ndpi_utils.c')
| -rw-r--r-- | src/lib/ndpi_utils.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/lib/ndpi_utils.c b/src/lib/ndpi_utils.c index 9b0339c3c..3637561d0 100644 --- a/src/lib/ndpi_utils.c +++ b/src/lib/ndpi_utils.c @@ -1063,9 +1063,12 @@ int ndpi_flow2json(struct ndpi_detection_module_struct *ndpi_struct, ndpi_serialize_string_string(serializer, "cipher", ndpi_cipher2str(flow->protos.stun_ssl.ssl.server_cipher)); if(flow->l4.tcp.tls_sha1_certificate_fingerprint[0] != '\0') { - for(i=0, off=0; i<20; i++) - off += snprintf(&buf[off], sizeof(buf)-off,"%s%02X", (i > 0) ? ":" : "", - flow->l4.tcp.tls_sha1_certificate_fingerprint[i] & 0xFF); + for(i=0, off=0; i<20; i++) { + int rc = snprintf(&buf[off], sizeof(buf)-off,"%s%02X", (i > 0) ? ":" : "", + flow->l4.tcp.tls_sha1_certificate_fingerprint[i] & 0xFF); + + if(rc <= 0) break; else off += rc; + } ndpi_serialize_string_string(serializer, "fingerprint", buf); } |