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dirmngr: Allow conf files to disable default keyservers.

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* dirmngr/server.c (ensure_keyserver): Detect special value "none"
(cmd_keyserver): Ignore "none" and "hkp://none".
--

GnuPG-bug-id: 6708
This commit is contained in:
Werner Koch 2023-09-06 09:36:47 +02:00
parent 362a6dfb0a
commit 0aa32e2429
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
3 changed files with 23 additions and 5 deletions
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22
dirmngr/server.c
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@ -2202,6 +2202,7 @@ ensure_keyserver (ctrl_t ctrl)
uri_item_t plain_items = NULL;
uri_item_t ui;
strlist_t sl;
int none_seen = 1;
if (ctrl->server_local->keyservers)
return 0; /* Already set for this session. */
@ -2214,6 +2215,11 @@ ensure_keyserver (ctrl_t ctrl)
for (sl = opt.keyserver; sl; sl = sl->next)
{
if (!strcmp (sl->d, "none"))
{
none_seen = 1;
continue;
}
err = make_keyserver_item (sl->d, &item);
if (err)
goto leave;
@ -2229,6 +2235,12 @@ ensure_keyserver (ctrl_t ctrl)
}
}
if (none_seen && !plain_items && !onion_items)
{
err = gpg_error (GPG_ERR_NO_KEYSERVER);
goto leave;
}
/* Decide which to use. Note that the session has no keyservers
yet set. */
if (onion_items && !onion_items->next && plain_items && !plain_items->next)
@ -2299,8 +2311,7 @@ cmd_keyserver (assuan_context_t ctx, char *line)
gpg_error_t err = 0;
int clear_flag, add_flag, help_flag, host_flag, resolve_flag;
int dead_flag, alive_flag;
uri_item_t item = NULL; /* gcc 4.4.5 is not able to detect that it
is always initialized. */
uri_item_t item = NULL;
clear_flag = has_option (line, "--clear");
help_flag = has_option (line, "--help");
@ -2366,13 +2377,16 @@ cmd_keyserver (assuan_context_t ctx, char *line)
if (add_flag)
{
err = make_keyserver_item (line, &item);
if (!strcmp (line, "none") || !strcmp (line, "hkp://none"))
err = 0;
else
err = make_keyserver_item (line, &item);
if (err)
goto leave;
}
if (clear_flag)
release_ctrl_keyservers (ctrl);
if (add_flag)
if (add_flag && item)
{
item->next = ctrl->server_local->keyservers;
ctrl->server_local->keyservers = item;