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Fix SIGFPE crash

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the minimal count and also min may stay at zero and then we divide by
zero causing a SIGFPE.

Closes #48
This commit is contained in:
Baruch Even
2014-11-12 07:51:31 +02:00
parent 3f066b0c70
commit defd00276c
1 changed files with 5 additions and 3 deletions
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8
src/rtl_433.c
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@@ -929,8 +929,10 @@ static void classify_signal() {
}
}
}
min_new = min_new / count_min;
max_new = max_new / count_max;
if (count_min != 0 && count_max != 0) {
min_new = min_new / count_min;
max_new = max_new / count_max;
}
delta = (min - min_new)*(min - min_new) + (max - max_new)*(max - max_new);
min = min_new;
@@ -947,7 +949,7 @@ static void classify_signal() {
}
}
/* 50% decision limit */
if (max/min > 1) {
if (min != 0 && max/min > 1) {
fprintf(stderr, "Pulse coding: Short pulse length %d - Long pulse length %d\n", min, max);
signal_type = 2;
} else {