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65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
//go:build !windows
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// +build !windows
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package plugin
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import (
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"debug/elf"
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"debug/macho"
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"debug/pe"
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"fmt"
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"os"
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"os/user"
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"runtime"
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"strconv"
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"syscall"
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)
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// additionalNotesAboutCommand tries to get additional information about a command that might help diagnose
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// why it won't run correctly. It runs as a best effort only.
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func additionalNotesAboutCommand(path string) string {
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notes := ""
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stat, err := os.Stat(path)
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if err != nil {
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return notes
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}
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notes += "\nAdditional notes about plugin:\n"
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notes += fmt.Sprintf(" Path: %s\n", path)
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notes += fmt.Sprintf(" Mode: %s\n", stat.Mode())
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statT, ok := stat.Sys().(*syscall.Stat_t)
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if ok {
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currentUsername := "?"
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if u, err := user.LookupId(strconv.FormatUint(uint64(os.Getuid()), 10)); err == nil {
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currentUsername = u.Username
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}
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currentGroup := "?"
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if g, err := user.LookupGroupId(strconv.FormatUint(uint64(os.Getgid()), 10)); err == nil {
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currentGroup = g.Name
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}
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username := "?"
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if u, err := user.LookupId(strconv.FormatUint(uint64(statT.Uid), 10)); err == nil {
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username = u.Username
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}
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group := "?"
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if g, err := user.LookupGroupId(strconv.FormatUint(uint64(statT.Gid), 10)); err == nil {
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group = g.Name
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}
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notes += fmt.Sprintf(" Owner: %d [%s] (current: %d [%s])\n", statT.Uid, username, os.Getuid(), currentUsername)
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notes += fmt.Sprintf(" Group: %d [%s] (current: %d [%s])\n", statT.Gid, group, os.Getgid(), currentGroup)
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}
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if elfFile, err := elf.Open(path); err == nil {
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notes += fmt.Sprintf(" ELF architecture: %s (current architecture: %s)\n", elfFile.Machine, runtime.GOARCH)
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} else if machoFile, err := macho.Open(path); err == nil {
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notes += fmt.Sprintf(" MachO architecture: %s (current architecture: %s)\n", machoFile.Cpu, runtime.GOARCH)
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} else if peFile, err := pe.Open(path); err == nil {
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machine, ok := peTypes[peFile.Machine]
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if !ok {
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machine = "unknown"
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}
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notes += fmt.Sprintf(" PE architecture: %s (current architecture: %s)\n", machine, runtime.GOARCH)
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}
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return notes
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}
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