STRLCPY/cdebug

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README.md

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128	128
129	129		The secret sauce is the symlink + PATH modification + chroot-ing.
130	130
	131	+	## F.A.Q
	132	+
	133	+	Q: Running `cdebug exec` fails with `rm: cannot remove '/proc/1/root/nix': Permission denied` or
	134	+	`ln: /proc/1/root/.cdebug-XXXXXXXX: Permission denied`.
	135	+
	136	+	Chances are your target container has been started with elevated permissions while you're trying to run a non-privileged debugger sidecar. Try `cdebug exec --privileged` instead.
	137	+
131	138		## Similar tools
132	139
133	140		- [`docker-slim debug`](https://github.com/docker-slim/docker-slim) - a PoC `debug` command for DockerSlim (contributed by [D4N](https://github.com/D4N))
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cmd/exec/exec.go

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3	3		import (
4	4		"bytes"
5	5		"context"
	6	+	"encoding/json"
6	7		"fmt"
7	8		"io"
8	9		"strings"
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174	175		AttachStderr: true,
175	176		},
176	177		&container.HostConfig{
177		-	Privileged: opts.privileged,
	178	+	Privileged: target.HostConfig.Privileged \|\| opts.privileged,
	179	+	CapAdd: target.HostConfig.CapAdd,
	180	+	CapDrop: target.HostConfig.CapDrop,
	181	+
178	182		AutoRemove: opts.autoRemove,
179	183
180	184		NetworkMode: container.NetworkMode(nsMode),
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367	371		return
368	372		}
369	373
	374	+	func pprint(v any) {
	375	+	b, _ := json.MarshalIndent(v, "", " ")
	376	+	fmt.Println(string(b))
	377	+	}
	378	+