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net: fix crash in DialIP

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Reported by jan.newmarch.

Fixes #1130.

R=r
CC=golang-dev
https://golang.org/cl/2212043
This commit is contained in:
Russ Cox 2010-09-24 16:50:50 -04:00
parent daf64bf567
commit b031b5cfde
1 changed files with 1 additions and 1 deletions
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2
src/pkg/net/iprawsock.go
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@ -288,7 +288,7 @@ func readProtocols() {
func netProtoSplit(netProto string) (net string, proto int, err os.Error) {
onceReadProtocols.Do(readProtocols)
i := last(netProto, ':')
if i+1 >= len(netProto) { // no colon
if i < 0 { // no colon
return "", 0, os.ErrorString("no IP protocol specified")
}
net = netProto[0:i]