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http: avoid crash when asked for multiple file ranges

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R=adg
CC=golang-dev
https://golang.org/cl/4289076
This commit is contained in:
Russ Cox 2011-03-27 23:35:31 -04:00
parent 59a8926829
commit 732f2fa2c1
1 changed files with 4 additions and 1 deletions
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5
src/pkg/http/fs.go
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@ -154,7 +154,10 @@ func serveFile(w ResponseWriter, r *Request, name string, redirect bool) {
// handle Content-Range header.
// TODO(adg): handle multiple ranges
ranges, err := parseRange(r.Header.Get("Range"), size)
if err != nil || len(ranges) > 1 {
if err == nil && len(ranges) > 1 {
err = os.ErrorString("multiple ranges not supported")
}
if err != nil {
Error(w, err.String(), StatusRequestedRangeNotSatisfiable)
return
}