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CURLOPT_DEFAULT_PROTOCOL: added

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- Add new option CURLOPT_DEFAULT_PROTOCOL to allow specifying a default
protocol for schemeless URLs.

- Add new tool option --proto-default to expose
CURLOPT_DEFAULT_PROTOCOL.

In the case of schemeless URLs libcurl will behave in this way:

When the option is used libcurl will use the supplied default.

When the option is not used, libcurl will follow its usual plan of
guessing from the hostname and falling back to 'http'.
This commit is contained in:
Nathaniel Waisbrot 2015-08-22 21:49:26 -04:00 • committed by Jay Satiro
parent 22cb631198
commit 9756d1da76
21 changed files with 287 additions and 36 deletions
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8
docs/libcurl/opts/CURLOPT_URL.3
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@ -40,9 +40,11 @@ libcurl doesn't validate the syntax or use this variable until the transfer is
issued. Even if you set a crazy value here, \fIcurl_easy_setopt(3)\fP will
still return \fICURLE_OK\fP.
If the given URL lacks the scheme (such as "http://" or "ftp://" etc) then
libcurl will attempt to resolve the protocol based on one of the following
given host names: HTTP, FTP, DICT, LDAP, IMAP, POP3 or SMTP
If the given URL is missing a scheme name (such as "http://" or "ftp://" etc)
then libcurl will make a guess based on the host. If the outermost sub-domain
name matches DICT, FTP, IMAP, LDAP, POP3 or SMTP then that protocol will be
used, otherwise HTTP will be used. Since 7.45.0 guessing can be disabled by
setting a default protocol, see \fICURLOPT_DEFAULT_PROTOCOL(3)\fP for details.
Should the protocol, either that specified by the scheme or deduced by libcurl
from the host name, not be supported by libcurl then