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Fix potential null pointer exceptions in msg.go

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This commit adds conditions in msg.go file to check if the header 'HeaderDispositionNotificationTo' key exists in the map 'm.genHeader' before trying to associate it with a value. This prevents potential null pointer exceptions.
This commit is contained in:
Winni Neessen 2023-11-29 17:26:58 +01:00
parent fd313e23b6
commit da21550dc9
Signed by: wneessen
GPG key ID: 5F3AF39B820C119D
1 changed files with 6 additions and 2 deletions
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4
msg.go
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@ -520,7 +520,9 @@ func (m *Msg) RequestMDNTo(t ...string) error {
} }
tl = append(tl, a.String()) tl = append(tl, a.String())
} }
if _, ok := m.genHeader[HeaderDispositionNotificationTo]; ok {
m.genHeader[HeaderDispositionNotificationTo] = tl m.genHeader[HeaderDispositionNotificationTo] = tl
}
return nil return nil
} }
@ -541,7 +543,9 @@ func (m *Msg) RequestMDNAddTo(t string) error {
var tl []string var tl []string
tl = append(tl, m.genHeader[HeaderDispositionNotificationTo]...) tl = append(tl, m.genHeader[HeaderDispositionNotificationTo]...)
tl = append(tl, a.String()) tl = append(tl, a.String())
if _, ok := m.genHeader[HeaderDispositionNotificationTo]; ok {
m.genHeader[HeaderDispositionNotificationTo] = tl m.genHeader[HeaderDispositionNotificationTo] = tl
}
return nil return nil
} }