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lib: drop support for CURLAUTH_DIGEST_IE

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This bit was used to do Digest authentication like Internet Explorer
before version 7 (released on October 18, 2006). Presumably no one uses
this anymore and since it is hard to use and does broken auth, starting
in 8.21.0 this bit does nothing (except setting the actual Digest bit).

Closes #21486
This commit is contained in:
Daniel Stenberg 2026-05-02 22:50:10 +02:00
parent 10d4b34e5c
commit 37b2403f48
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GPG key ID: 5CC908FDB71E12C2
5 changed files with 9 additions and 49 deletions
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10
lib/setopt.c
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@ -240,17 +240,9 @@ static CURLcode httpauth(struct Curl_easy *data, bool proxy,
if(auth != CURLAUTH_NONE) {
int bitcheck = 0;
bool authbits = FALSE;
/* the DIGEST_IE bit is only used to set a special marker, for all the
rest we need to handle it as normal DIGEST */
bool iestyle = !!(auth & CURLAUTH_DIGEST_IE);
if(proxy)
data->state.authproxy.iestyle = iestyle;
else
data->state.authhost.iestyle = iestyle;
if(auth & CURLAUTH_DIGEST_IE) {
auth |= CURLAUTH_DIGEST; /* set standard digest bit */
auth &= ~CURLAUTH_DIGEST_IE; /* unset ie digest bit */
auth &= ~CURLAUTH_DIGEST_IE; /* drop the legacy bit */
}
/* switch off bits we cannot support */