4b1bb1293e
This migrates uses of github.com/opencontainers/runc/libcontainer/user
to the new github.com/moby/sys/user module, which was extracted from
runc at commit [opencontainers/runc@a3a0ec48c4].
This is the initial release of the module, which is a straight copy, but
some changes may be made in the next release (such as fixing camel-casing
in some fields and functions (Uid -> UID).
[opencontainers/runc@a3a0ec48c4]: a3a0ec48c4
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
44 lines
781 B
Go
44 lines
781 B
Go
//go:build gofuzz
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// +build gofuzz
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package user
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import (
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"io"
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"strings"
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)
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func IsDivisbleBy(n int, divisibleby int) bool {
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return (n % divisibleby) == 0
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}
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func FuzzUser(data []byte) int {
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if len(data) == 0 {
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return -1
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}
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if !IsDivisbleBy(len(data), 5) {
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return -1
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}
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var divided [][]byte
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chunkSize := len(data) / 5
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for i := 0; i < len(data); i += chunkSize {
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end := i + chunkSize
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divided = append(divided, data[i:end])
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}
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_, _ = ParsePasswdFilter(strings.NewReader(string(divided[0])), nil)
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var passwd, group io.Reader
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group = strings.NewReader(string(divided[1]))
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_, _ = GetAdditionalGroups([]string{string(divided[2])}, group)
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passwd = strings.NewReader(string(divided[3]))
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_, _ = GetExecUser(string(divided[4]), nil, passwd, group)
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return 1
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}
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