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URL-SYNTAX: mention how FILE:// access can access network on windows 

Closes #6314
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Daniel Stenberg 2020-12-12 22:23:19 +01:00
parent b90c23d580
commit 7ba2577988
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docs/URL-SYNTAX.md
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@ -200,9 +200,16 @@ curl only allows the hostname part of a FILE URL to be one out of these three
alternatives: `localhost`, `127.0.0.1` or blank ("", zero characters).
Anything else will make curl fail to parse the URL.
On Windows, curl accepts that the FILE URL's path starts with a "drive
letter". That's a single letter `a` to `z` followed by a colon or a pipe
character (`|`).
### Windows-specific FILE details
curl accepts that the FILE URL's path starts with a "drive letter". That's a
single letter `a` to `z` followed by a colon or a pipe character (`|`).
The Windows operating system itself will convert some file accesses to perform
network accesses over SMB/CIFS, through several different file path patterns.
This way, a `file://` URL passed to curl *might* be converted into a network
access inadvertently and unknowingly to curl. This is a Windows feature curl
cannot control or disable.
## IMAP