Too many changes to list. Basically, FTP is nearly there and error
reporting is kinda sorted out. Now HTTP needs to catch up...

Imported libfetch into the tree. It compiles, but there's still some
work to do. I especially need help with the man page.

MFH @ 186335

1. Update fetch to consistently return 1 on error, as the man page states,
rather than usually returning 1 but in a few instances using a sysexits(3)
return value.

2. Remove a few unused varia

1. Update fetch to consistently return 1 on error, as the man page states,
rather than usually returning 1 but in a few instances using a sysexits(3)
return value.

2. Remove a few unused variables from libfetch.

PR: docs/122470 (1, only)
Reviewed by: des

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As several people pointed out, I did all the ctype casts the wrong
way (not for the first time...)

Noticed by: bde, ru ++
MFC after: 1 week

Old patch I had lying around: correctly cast the argument to is*().
IWBNI gcc could warn about this the way it warns about printf() abuse.

MFC after: 1 week

Clean up namespace violations.

MFC after: 1 week

Update copyright years.

style(9): add parentheses to sizeof even when not strictly required.

MFC after: 3 days

Initialization paranoia.

Add SSL support + slight cleanup.

Submitted by: Henry Whincup <henry@techiebod.com> (in principle)

Reindent, and add parentheses to return statements. Some functions in
ftp.c and http.c now have exceedingly long lines due to deep nesting;
this will be corrected by reorganizing the code in a later

Reindent, and add parentheses to return statements. Some functions in
ftp.c and http.c now have exceedingly long lines due to deep nesting;
this will be corrected by reorganizing the code in a later revision.

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Eliminate a redundant loop.

Remove VT100 escapes from debugging messages now that they're enabled by
default.

PR: 32988
MFC after: 3 days

Introduce a fetchDebug global. Change the DEBUG macro so it only runs the
debugging code if fetchDebug is set.

PR: bin/32615
MFC after: 1 week

Add __FBSDID()s to libfetch

The fix for schemeless and hostless URLs (rev. 1.27) broke the schemeless
proxy specification, which seems to be valid according to the man page.

Change the logic to consider "hostname:port" a hostn

The fix for schemeless and hostless URLs (rev. 1.27) broke the schemeless
proxy specification, which seems to be valid according to the man page.

Change the logic to consider "hostname:port" a hostname and port instead
of a file URL.

Approved by: des

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Unbreak parsing URLs that have a host part but no document part.
While we're here, fix a snprintf() usage warning.

Handle shemeless, hostless URLs correctly.

Add rudimentary support for an authentication callback function.

Apply 'const' liberally.

Fix some other minor glitches.

Avoid a segfault (due to an unitialized pointer) when parsing URLs that have
no scheme or host part.

Clean up the whitespace encoding code.

Use CHECK_FLAG

If the scheme is HTTP or HTTPS, percent-escape whitespace in the document
part.

Submitted by: green