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cmdparse: check if stratum in local directive is valid

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This commit is contained in:
Miroslav Lichvar 2016-04-06 16:38:14 +02:00
parent a9049569af
commit 4d1c795804
1 changed files with 2 additions and 1 deletions
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3
cmdparse.c
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@ -238,7 +238,8 @@ CPS_ParseLocal(char *line, int *stratum, int *orphan, double *distance)
line = CPS_SplitWord(line);
if (!strcasecmp(cmd, "stratum")) {
if (sscanf(line, "%d%n", stratum, &n) != 1)
if (sscanf(line, "%d%n", stratum, &n) != 1 ||
*stratum >= NTP_MAX_STRATUM || *stratum <= 0)
return 0;
} else if (!strcasecmp(cmd, "orphan")) {
*orphan = 1;