mirror of https://github.com/containers/podman.git
57 lines
2.0 KiB
Go
57 lines
2.0 KiB
Go
package define
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import (
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"math"
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"strings"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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)
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const (
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// ExecErrorCodeGeneric is the default error code to return from an exec session if libpod failed
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// prior to calling the runtime
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ExecErrorCodeGeneric = 125
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// ExecErrorCodeCannotInvoke is the error code to return when the runtime fails to invoke a command
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// an example of this can be found by trying to execute a directory:
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// `podman exec -l /etc`
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ExecErrorCodeCannotInvoke = 126
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// ExecErrorCodeNotFound is the error code to return when a command cannot be found
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ExecErrorCodeNotFound = 127
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// ErrorConmonRead is a bogus value that can neither be a valid PID or exit code. It is
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// used because conmon will send a negative value when sending a PID back over a pipe FD
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// to signify something went wrong in the runtime. We need to differentiate between that
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// value and a failure on the podman side of reading that value. Thus, we use ErrorConmonRead
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ErrorConmonRead = math.MinInt32 - 1
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)
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// TranslateExecErrorToExitCode takes an error and checks whether it
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// has a predefined exit code associated. If so, it returns that, otherwise it returns
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// the exit code originally stated in libpod.Exec()
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func TranslateExecErrorToExitCode(originalEC int, err error) int {
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if errors.Cause(err) == ErrOCIRuntimePermissionDenied {
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return ExecErrorCodeCannotInvoke
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}
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if errors.Cause(err) == ErrOCIRuntimeNotFound {
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return ExecErrorCodeNotFound
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}
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return originalEC
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}
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// ExitCode reads the error message when failing to executing container process
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// and then returns 0 if no error, ExecErrorCodeNotFound if command does not exist, or ExecErrorCodeCannotInvoke for
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// all other errors
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func ExitCode(err error) int {
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if err == nil {
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return 0
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}
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e := strings.ToLower(err.Error())
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logrus.Debugf("ExitCode msg: %q", e)
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if strings.Contains(e, "not found") ||
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strings.Contains(e, "no such file") {
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return ExecErrorCodeNotFound
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}
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return ExecErrorCodeCannotInvoke
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}
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