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Avoid undefined behaviour parsing double

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This commit is contained in:
Andrea Mazzoleni 2026-03-19 12:59:03 +01:00
parent 1d2ab288d1
commit 8ee24aa26c
1 changed files with 6 additions and 2 deletions
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8
cmdline/snapraid.c
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@ -1100,13 +1100,17 @@ int snapraid_main(int argc, char* argv[])
plan100 = SCRUB_FULL;
} else {
double plan_double = strtod(optarg, &e);
plan100 = plan_double * 100;
if (!e || *e || plan100 > 10000) {
if (!e || *e != 0
|| !isfinite(plan_double)
|| plan_double < 0
|| plan_double > 100
) {
/* LCOV_EXCL_START */
log_fatal(EUSER, "Invalid plan/percentage '%s'\n", optarg);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
plan100 = plan_double * 100;
}
break;
case 'o' :