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http: protect io.WriteString in Request/Response.Write with error checking,

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since they were causing a silent program exit (too many EPIPE's).

R=rsc
CC=golang-dev
https://golang.org/cl/204062
This commit is contained in:
Petar Maymounkov 2010-02-09 17:42:51 -08:00 committed by Russ Cox
parent d4ad8e8ce3
commit c5287ecb9c
2 changed files with 13 additions and 4 deletions
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5
src/pkg/http/request.go
View File

@ -171,7 +171,10 @@ func (req *Request) Write(w io.Writer) os.Error {
// from Request, and introduce Request methods along the lines of
// Response.{GetHeader,AddHeader} and string constants for "Host",
// "User-Agent" and "Referer".
writeSortedKeyValue(w, req.Header, reqExcludeHeader)
err := writeSortedKeyValue(w, req.Header, reqExcludeHeader)
if err != nil {
return err
}
io.WriteString(w, "\r\n")

12
src/pkg/http/response.go
View File

@ -459,7 +459,10 @@ func (resp *Response) Write(w io.Writer) os.Error {
}
// Rest of header
writeSortedKeyValue(w, resp.Header, respExcludeHeader)
err := writeSortedKeyValue(w, resp.Header, respExcludeHeader)
if err != nil {
return err
}
// End-of-header
io.WriteString(w, "\r\n")
@ -494,7 +497,7 @@ func (resp *Response) Write(w io.Writer) os.Error {
return nil
}
func writeSortedKeyValue(w io.Writer, kvm map[string]string, exclude map[string]int) {
func writeSortedKeyValue(w io.Writer, kvm map[string]string, exclude map[string]int) os.Error {
kva := make([]string, len(kvm))
i := 0
for k, v := range kvm {
@ -506,6 +509,9 @@ func writeSortedKeyValue(w io.Writer, kvm map[string]string, exclude map[string]
kva = kva[0:i]
sort.SortStrings(kva)
for _, l := range kva {
io.WriteString(w, l)
if _, err := io.WriteString(w, l); err != nil {
return err
}
}
return nil
}