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net/http: check for nil, nil return from DialContext as well as Dial 

Change-Id: I3b6dd9c40b3c10db2eda6a25b9d556c9c3733bbc
GitHub-Last-Rev: fd9b0c4193
GitHub-Pull-Request: golang/go#57448
Reviewed-on: https://go-review.googlesource.com/c/go/+/458876
Reviewed-by: Javad Rajabzadeh <ja7ad@live.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
This commit is contained in:
fangguizhen 2023-01-03 18:18:35 +00:00 committed by Gopher Robot
parent 85e84a49e4
commit eea26e8e68
1 changed files with 5 additions and 1 deletions
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6
src/net/http/transport.go
View File

@ -1180,7 +1180,11 @@ var zeroDialer net.Dialer
func (t *Transport) dial(ctx context.Context, network, addr string) (net.Conn, error) {
if t.DialContext != nil {
return t.DialContext(ctx, network, addr)
c, err := t.DialContext(ctx, network, addr)
if c == nil && err == nil {
err = errors.New("net/http: Transport.DialContext hook returned (nil, nil)")
}
return c, err
}
if t.Dial != nil {
c, err := t.Dial(network, addr)