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| author |   mbalmer <mbalmer@openbsd.org> | 2007-11-27 10:06:55 +0000 |
|---|---|---|
| committer | mbalmer <mbalmer@openbsd.org> | 2007-11-27 10:06:55 +0000 |
| commit | 93a5de57e6bfa282ec3b6cba0b5df3cc15738da4 (patch) | |
| tree | 472dc49fed472b0f1736a35f69c9df0f1e6e734b | |
| parent | fix typo (diff) | |
| download | wireguard-openbsd-93a5de57e6bfa282ec3b6cba0b5df3cc15738da4.tar.xz wireguard-openbsd-93a5de57e6bfa282ec3b6cba0b5df3cc15738da4.zip | |
Only checksum the NMEA sentence if it as GPRMC message.
suggested by otto.
| -rw-r--r-- | sys/kern/tty_nmea.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/sys/kern/tty_nmea.c b/sys/kern/tty_nmea.c index 2ff72855f69..83e41a897ac 100644 --- a/sys/kern/tty_nmea.c +++ b/sys/kern/tty_nmea.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tty_nmea.c,v 1.23 2007/11/26 19:14:38 mbalmer Exp $ */ +/* $OpenBSD: tty_nmea.c,v 1.24 2007/11/27 10:06:55 mbalmer Exp $ */ /* * Copyright (c) 2006, 2007 Marc Balmer <mbalmer@openbsd.org> @@ -242,6 +242,10 @@ nmea_scan(struct nmea *np, struct tty *tp) } } + /* we only look at the GPRMC message */ + if (strcmp(fld[0], "GPRMC")) + return; + /* if we have a checksum, verify it */ if (cs != NULL) { msgcksum = 0; @@ -265,10 +269,7 @@ nmea_scan(struct nmea *np, struct tty *tp) return; } } - - /* check message type */ - if (!strcmp(fld[0], "GPRMC")) - nmea_gprmc(np, tp, fld, fldcnt); + nmea_gprmc(np, tp, fld, fldcnt); } /* Decode the recommended minimum specific GPS/TRANSIT data. */ |