rtsp: skip malformed RTSP interleaved frame data

Some IP cameras send malformed RTSP interleaved frames sometimes, which
can cause curl_easy_perform return 1 (CURLE_UNSUPPORTED_PROTOCOL)

rtsp: skip malformed RTSP interleaved frame data

Some IP cameras send malformed RTSP interleaved frames sometimes, which
can cause curl_easy_perform return 1 (CURLE_UNSUPPORTED_PROTOCOL). This
change attempts to skip clearly incorrect RTSP interleaving frame data.

Closes #10808

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lib: add `bufq` and `dynhds`

Adding `bufq`:
- at init() time configured to hold up to `n` chunks of `m` bytes each.
- various methods for reading from and writing to it.
- `peek`

lib: add `bufq` and `dynhds`

Adding `bufq`:
- at init() time configured to hold up to `n` chunks of `m` bytes each.
- various methods for reading from and writing to it.
- `peek` support to get access to buffered data without copy
- `pass` support to allow buffer flushing on write if it becomes full
- use case: IO buffers for dynamic reads and writes that do not blow up
- distinct from `dynbuf` in that:
- it maintains a read position
- writes on a full bufq return CURLE_AGAIN instead of nuking itself
- Init options:
- SOFT_LIMIT: allow writes into a full bufq
- NO_SPARES: free empty chunks right away
- a `bufc_pool` that can keep a number of spare chunks to
be shared between different `bufq` instances

Adding `dynhds`:
- a straightforward list of name+value pairs as used for HTTP headers
- headers can be appended dynamically
- headers can be removed again
- headers can be replaced
- headers can be looked up
- http/1.1 formatting into a `dynbuf`
- configured at init() with limits on header counts and total string
sizes
- use case: pass a HTTP request or response around without being version
specific
- express a HTTP request without a curl easy handle (used in h2 proxy
tunnels)
- future extension possibilities:
- conversions of `dynhds` to nghttp2/nghttp3 name+value arrays

Closes #10720

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pytest: improvements for suitable curl and error output

- will check built curl for http and https support and
skip all tests if not there
- will dump stdout/stderr/trace output on

pytest: improvements for suitable curl and error output

- will check built curl for http and https support and
skip all tests if not there
- will dump stdout/stderr/trace output on errored responses

Closes #10829

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lib: use correct printf flags for sockets and timediffs

Introduces CURL_FORMAT_SOCKET_T for outputting socket numbers.

Fixes #10737
Reported-by: Gisle Vanem
Closes #10855

telnet: make MSVC ignore warning for assignment within conditional

Follow-up to d92a5007b60e0af7d

Closes #10859

ws: handle reads before EAGAIN better

Reported-by: simplerobot on github
Fixes #10831
Closes #10856

test1592: add flaky keyword

Closes #10860

lib/sha256.c: typo fix in comment (duplicated "is available")

Closes #10851

tests: update tests/httpd references to tests/http

tests/httpd was renamed to tests/http in #10654. This patch updates some
references in the README

Closes #10854

telnet: simplify the implementation of str_is_nonascii()

There is no need to traverse the string twice.

Closes #10852

curl_easy_getinfo.3: typo fix (duplicated "from the")

Closes #10850

wolfssl.yml: bump to version 5.6.0

Closes #10843

RELEASE-NOTES: synced

docs/cmdline-opts: document the dotless config path

The real xdg config path is $XDG_CONFIG_HOME/curlrc, without the dot.
The dotless name seems preferable, so let's match the documentat

docs/cmdline-opts: document the dotless config path

The real xdg config path is $XDG_CONFIG_HOME/curlrc, without the dot.
The dotless name seems preferable, so let's match the documentation to
the behavior.

Closes #10849

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HTTP-COOKIES.md: mention the #HttpOnly_ prefix

Fixes #10847
Reported-by: Harry Sintonen
Closes #10848

dynbuf: never allocate larger than "toobig"

As dynbufs always have a fixed maximum size which they are not allowed
to grow larger than, making sure that it never allocates a larger buffe

dynbuf: never allocate larger than "toobig"

As dynbufs always have a fixed maximum size which they are not allowed
to grow larger than, making sure that it never allocates a larger buffer
makes sure the buffer does not allocate memory that will never be used.

Closes #10845

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ftplistparser: replace realloc with dynbuf

Closes #10844

ftplistparser: use ISDIGIT()

Closes #10844

ftplistparser: move out private data from public struct

The public 'curl_fileinfo' struct contained three fields that are for
internal purposes only. This change makes them unused in the

ftplistparser: move out private data from public struct

The public 'curl_fileinfo' struct contained three fields that are for
internal purposes only. This change makes them unused in the public
struct.

The new private struct fields are also renamed to make this separation
more obvious internally.

Closes #10844

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openssl: fix indents - white space edits only

Closes #10840

url: remove call to Curl_llist_destroy in Curl_close

A list that is created with a NULL "destructor" does not need to be
destroyed. Not calling it is faster than calling it.

Clo

url: remove call to Curl_llist_destroy in Curl_close

A list that is created with a NULL "destructor" does not need to be
destroyed. Not calling it is faster than calling it.

Closes #10846

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multi: remove PENDING + MSGSENT handles from the main linked list

As they are not driving transfers or any socket activity, the main loop
does not need to iterate over these handles. A p

multi: remove PENDING + MSGSENT handles from the main linked list

As they are not driving transfers or any socket activity, the main loop
does not need to iterate over these handles. A performance improvement.

They are instead only held in their own separate lists.

'data->multi' is kept a pointer to the multi handle as long as the easy
handle is actually part of it even when the handle is moved to the
pending/msgsent lists. It needs to know which multi handle it belongs
to, if for example curl_easy_cleanup() is called before the handle is
removed from the multi handle.

Alll 'data->multi' pointers of handles still part of the multi handle
gets cleared by curl_multi_cleanup() which "orphans" all previously
attached easy handles.

This is take 2. The first version was reverted for the 8.0.1 release.

Assisted-by: Stefan Eissing
Closes #10801

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tests/http: add timeout to running curl in test cases

- we had a CI case once where `curl` seemingly did not
return and it was hard to guess what happened.
- make curl execution in

tests/http: add timeout to running curl in test cases

- we had a CI case once where `curl` seemingly did not
return and it was hard to guess what happened.
- make curl execution in test cases time out after 60 seconds

Closes #10783

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RELEASE-PROCEDURE: update to new schedule

Ref: https://curl.se/mail/lib-2023-03/0062.html

Assisted-by: Andy Alt
Assisted-by: Dan Frandrich

Closes #10827

doc: curl_mime_init() strong easy handle binding has been relaxed in 7.87.0

Reported-by: Chloe Kudryavtsev
Fixes #10834
Closes #10835