ITWorx Pulse release export
bd774932d5
Public source validation / validate (push) Failing after 3m8s
35 lines
1016 B
Go
35 lines
1016 B
Go
package hostcollect
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import (
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"fmt"
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"math"
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"strings"
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)
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// maxUptimeSeconds is the bound internal/host enforces (100 years). Rejecting here
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// keeps an implausible reading from failing normalization later, where the cause is
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// harder to see.
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const maxUptimeSeconds = 100 * 365 * 24 * 60 * 60
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// parseUptime reads the first field of /proc/uptime, the seconds since boot. The
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// second field (idle time summed over cores) is intentionally unused.
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func parseUptime(data []byte) (float64, error) {
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fields := strings.Fields(string(data))
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if len(fields) == 0 {
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return 0, errBadUptime
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}
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seconds, ok := parseFloat(fields[0])
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if !ok || seconds < 0 || seconds > maxUptimeSeconds || math.IsNaN(seconds) || math.IsInf(seconds, 0) {
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return 0, errBadUptime
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}
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return seconds, nil
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}
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func (c *Collector) uptimeSeconds() (float64, error) {
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data, err := readLimited(c.procPath("uptime"), maxProcessFileBytes)
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if err != nil {
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return 0, fmt.Errorf("hostcollect: read uptime: %w", err)
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}
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return parseUptime(data)
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}
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