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| author | Chris Kuethe <chris.kuethe@gmail.com> | 2009-03-04 16:57:09 +0000 |
|---|---|---|
| committer | Chris Kuethe <chris.kuethe@gmail.com> | 2009-03-04 16:57:09 +0000 |
| commit | 56764b0b48fdcfbe32df1294306bd6982e274b75 (patch) | |
| tree | 3755aa31e6e3f4f2919839502bc2ba23d6e14eed /monitor_italk.c | |
| parent | 8a1f58de43ea5552e9fea97620f1a30c359e2b28 (diff) | |
| download | gpsd-56764b0b48fdcfbe32df1294306bd6982e274b75.tar.gz | |
fix another bug in the italk decoder.
bad PRN_STATUS messages can cause gpsd to run off the end of allocated
space for SV info leading to a bus error later on when we try
recalculate the DOPs.
Diffstat (limited to 'monitor_italk.c')
| -rw-r--r-- | monitor_italk.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/monitor_italk.c b/monitor_italk.c index 61e87ca4..6c7cbaa7 100644 --- a/monitor_italk.c +++ b/monitor_italk.c @@ -186,7 +186,9 @@ static void display_itk_prnstatus(unsigned char *buf, size_t len) if (len < 62) return; - nchan = (unsigned int)((len - 10 - 52) / 10); + nchan = (unsigned int)getleuw(buf, 7 +50); + if (nchan > MAXCHANNELS) + nchan = MAXCHANNELS; for (i = 0; i < nchan; i++) { unsigned int off = 7+ 52 + 10 * i; unsigned short fl; |