SUSE/saptune

package system

// Gather information about kernel cmdline

import (
    "os"
    "strings"
)

// ParseCmdline parse /proc/cmdline into key(string) - value(string) pairs.
// return value for given boot option or 'NA', if not available
func ParseCmdline(fileName, option string) string {
    opt := "NA"
    cmdLine, err := os.ReadFile(fileName)
    if err != nil {
        WarningLog("ParseCmdline: failed to read  %s: %v", fileName, err)
        return opt
    }
    for _, param := range strings.Fields(string(cmdLine)) {
        fields := strings.Split(param, "=")
        if fields[0] == option {
            if len(fields) > 1 {
                opt = fields[1]
            } else {
                opt = option
            }
        }
    }
    return opt
}