… LEAmDNS2

…ard}`, (esp8266#7024)

as proposed by esp8266#6972 (comment).
@ttytyper 's changes have been incorporate into this PR
The build flag ARDUINO_SONOFF_... should now appear as ARDUINO_ESP8266_SONOFF_...
@ttytyper, @mcspr, and @d-a-v thanks!

* Update LEAmDNS.cpp (issue esp8266#6982)

Check m_pUDPContext before calling functions to reset WiFi event callbacks, stop probing ... to close esp8266#6982

* Update LEAmDNS.cpp

Co-authored-by: Earle F. Philhower, III <earlephilhower@yahoo.com>

…xcessive yields (esp8266#6802)

* optimistic_yield is a yield, not a delay, and avoids yielding if last yield has occurred recently enough.

* Suppress an unused argument warning.

Co-authored-by: Earle F. Philhower, III <earlephilhower@yahoo.com>

Updated eboot.ld to not fill with zeros through the CS field
on its way to the CRC.
Added size test to elf2bin.py

* Code size optimisation of ESP.getResetReason()

doing if/else snakes for something that is a switch/case
is wasteful, as it repeatedly evaluates the same if() condition.
Also repeating strcpy_P is adding code bloat.

This simplification reduces size from 111 to 41 bytes.

* add break statement also to default case

sendRequest has a major problem when sending a big payload, the comparator in the IF loop has its two operators changed, so the last part of payload is never sent

* add Low-Power demo

Updated eboot.ld to not fill with zeros through the CS field
on its way to the CRC.
Added size test to elf2bin.py

…ion.

Greatly reduces error rate (half, or 0 zero errors, depends on in/out ranges) for round-trip mapping at the same performance.

… x us, but yield only every x us between optimistic_yield calls.

…rval_us can overflow - 26s at 160MHz CPU clock.

… with a literal parameter value.

…uino>, have to resort to preprocessor definition for inlining.

Changed ets_putc to ets_uart_putc1 to better newline handling.

…t-update

Updated stack offsets for postmortem stack dump.

Fix WMath's map() implementation for inverse/round-trip mapping

Fixes esp8266#7043

Two slightly different custom routines were implemented by hand in
dtostrf (an AVR-lib non-ISO function) and Print.  This resulted in
inconsistent output of float/double vars when rounding was needed.

Replace them all with a call to sprintf(), removing the duplicated, not
quite correct code.

Print(String(float)) and Print(float) now generate the same output.

Fixes esp8266#6984

When a directory index is requested with an explicit index.html, follow
the original webserver order and check for: index.htm, index.htm.gz,
index.html, index.html.gz, in order.

Fixes the regressions introduced in 9f2cfb8 and 6768116

Use sprintf to output floats in Print/dtostrf

Corrected stack start and end in stack_thunk_dump_stack().

allow versions 0.0.* to be special

…log limitation and other fixes (esp8266#6887)

* upstream lwIP is now downloaded by a makefile, not subsubmoduled

* lwip2: upstream lwIP not sub-sub-modules anymore
lwip2: Allow IPv4 and IPv6 DNS and SNTP server configured via DHCP to co-exist (patch against upstream)

* lwip2: enable tcp-listen-with-backlog feature

* lwip2 submodule update:
- enable more efficient chksum algorithm thanks to Richard Allen
- enable tcp listener with backlog

* more comments, fix backlog management, fix API
* move default value definition in .cpp
because one must not believe it can be redefined before including WiFiServer.h

* improved backlog handling, it is no more a breaking change

* configTime(tzsec,dstsec,): fix UTC/local management
This PR also remove dead code since probably newlib updates
The NTP-TZ-DST example is also updated
* restore sntp_set_timezone_in_seconds()
fixes esp8266#6678
* +configTzTime()

Fix optimistic_yield to not yield on each call after x µs

…sp8266#7093)

* restore dtostrf+fix when float printing is disabled at link time

* fix include file

* fix with proposal per review

* always use dtostrf

* Fix/enable UDP packet reassembly

UdpContext didn't care about pbuf chaining when receiving datagrams, leading
to fragments delivered to the application as individual packets.

* Provide pbuf_get_contiguous for backwards compatibility with LwIP 1.4

Implementation copied verbatim from LwIP 2.1.2

* Cosmetic changes to meet coding style

Co-authored-by: david gauchard <gauchard@laas.fr>
Co-authored-by: Develo <deveyes@gmail.com>

Minor changes which should not affect us, but keeping in sync with
upstream nevertheless.

* Add path args

* Add example

* Update code format

* Add missing include

* Fix codestyle and unsigned int

* fix unsigned int

* Remove tabs

* use vector<>.resize

* rename j to requestUriIndex

* using assert checking the path argument index

* Add missing include "assert.h"

* The order no longer matters.
Path arguments may not contain the value '/'
Updated the example

* make pathArg return a const

* Update PathArgServer.ino

fix trailing space

* const String&

* Add regex support

* Fix to match templating

* Add Uri with support for staticUri, regexUri and globUri

* Update example

* Add deconstructor to remove _uri pointer

* Add newline to end of files

* Suppress gcc warnings (unused params)

* Replace regex with regex.h

* Use the standard STASSID/PSK settings for example

Make the example match the existing examples which allow setting
the SSID/PSK in the local platform.txt file.

* Use 115.2Kbaud for example, match others

Co-authored-by: david gauchard <gauchard@laas.fr>
Co-authored-by: Earle F. Philhower, III <earlephilhower@yahoo.com>

* Add fileCreation/getCreation create-time accessors

For SDFS and LittleFS, enable a creation time accessor for files and Dir
iterators, similar to the existing fileTime/getLastWrite calls.

Remove spurious Dir::getLastWrite method (the proper and only documented
way is really Dir::fileTime).

Update json to point to new mklittlefs which copies the creation date of
files to the image.

Fixes esp8266#6992

* Remove malloc(), use stack vars for temp names

LFS filenames are limited in size and generally very small.  Use a stack
variable instead of a dynamic allocation when performing full-path
computations.

* Replace "Creation" w/"CreationTime" in FS accessor

Per review, `getCreation` -> `getCreationTime`, `fileCreation` ->
`fileCreationTime`.

The names `fileTime()` and `getLastWrite()` are inherited from ESP32
implementation and unchanged.

* Add creation time to listfiles SD example

* Enable SdFat's sateTime callback for timestamping

SdFat requries the dateTimeCallback call (global for everything) to
update dates and times on created files.

Because the callback signature doesn't have space for us to provide
any parameters, we cannot get the the File, Dir, or FS object's
dateTimeCB member.  Instead, just go with `time(null)` as the callback
function which is right in all but the most esoteric cases.

* Correct DOS year/month offset in dateTime callback

* Fix docs to match new xxxCreationTime() API names

Co-authored-by: Develo <deveyes@gmail.com>

* Resolved issue esp8266#3359

Made severing connections optional as per the patch
in the issue.
Also fixed a minor spacing issue.

* Renamed sever to close and added information to readme

Also my editor automatically removed some odd whitespace at the
end of a few lines.

Previously, when the path was a directory, but didn't have a slash at
the end, a 0 byte response would be sent when using LittleFS. Now, it
will return a 404, like was always the case when using SPIFFS.

* Update Uri.h

* Add a simple test for the new constructor

Convert a c-str to a FPSTR in the example to have a section
of code in our CI that will catch any future breaks of this specific
kind.

Co-authored-by: Earle F. Philhower, III <earlephilhower@yahoo.com>

…ns (esp8266#7096)

* fix backlog limit handling, and allow ephemeral TCP connections
* do not retain empty connections

* Addition to UdpContext needed for LEAmDNS2

* simple TZ api: bypass sprintf/sscanf: + 7KB

* ^#

* Fix merge conflict

* Fix merge conflict

Co-authored-by: Earle F. Philhower, III <earlephilhower@yahoo.com>

* Set a value for SSDP notify interval, default to 1200 seconds.

* Changed uint8_t to uint32_t

Co-authored-by: david gauchard <gauchard@laas.fr>

* udp: fix again pbuf management
* Process rx buffer size, cache it, because _rx_buf->tot_len is *not* the total size

…7133)

* MultiDelegate breaking change and improvements.

The event-multiplexer specialization no longer removes items based on invoke return value.
This is mitigated by new iterators and erase(iterator). Check the documentation comments for
details.

* MultiDelegate: constness on return type warning fix.

* EspSoftwareSerial: Conform to C++ 17 and later.

* EspSoftwareSerial: Resolve g++ 9's c++17 deprecation warnings.

* EspSoftwareSerial, Delegate.h: gcc 9.2 is very strict about template inheritance of ctor and assignment operators, needing a lot

of code duplication, this commit provides that.

* Delegate.h, fix both ambiguous operator= and infinite ctor recursion.

* EspSoftwareSerial release 6.7.2

* EspSoftwareSerial: Use compile-time flash pin deduction, enables ESP8285.

* EspSoftwareSerial release 6.8.0 for ESP8285 support.

* Fix RST links

* Update links to PlatformIO

* Use 2nd stack for update signature verification

Fixes esp8266#7145

When doing a signed update, the signature calculation can use a lot of
stack, so move it silently to the BearSSL second stack.

Also fix a memory leak of signature-bytes found by @JiriBilek

* Reset state on any error condition in Updater::end

As found by @d-a-v, if the malloc() used to get the BearSSL stack does
not succeed, abort() immediately.

* Pull GPIO initialization into its own 'weak' function.

By pulling GPIO init into its own weak function, it can be overridden by the user. This is important in cases when GPIOs should not toggle during reboot, exceptions or other crashes. Fixes esp8266#7041.

* Add prototype for resetPins()

The ESP8285H16 is reported to have 2MB of flash, so add an option the
the Generic 8285 board for 2MB.

Fixes esp8266#7161

* Add way to force follow redirections in `HTTPClient`

* Follow other client implementations about `HTTP_CODE_FOUND`; Small rewrite of `sendRequest` function of `HTTPClient`

* Better names for follow redirection modes in `HTTPClient`

Also changed a bit order of the enums (0 element to be DISABLED)

* Rewrite `sendRequest` to remove recursion

Also got rid of unnecessary `redirectCount` field. Now redirect counting and limiting is handled in `sendRequest` directly.

* Use new `setFollowRedirects` of `HTTPClient` instead deprecated one.

* More explanatory comment for `followRedirects_t` in HTTPClient

…ld (esp8266#7170)

* Attribute `__real_system_restart_local()` as `(noreturn)`
* As well as `abort()`.
* Aggragate two decls into `coredecls.h`.

Set Tone maximum frequency to 20KHz (was 5KHz)

Co-authored-by: Stephan Hadinger <stephan.hadinger@gmail.com>
Co-authored-by: david gauchard <gauchard@laas.fr>

* expose hidden WebServer's chunked API

* wifi: ARP gratuitous API for wifi station mode

* fix with lwip1

* update comment

* update API to allow changing interval on the fly

* update API

* remove debug lines

* mock lwIP's etharp_request()

* unsigned interval

* use scheduled ticker

* ticker: +attach_ms_scheduled_accurate
ticker: +comment
gratuitous: use attach_ms_scheduled_accurate

* move to experimental namespace

* fix for lwIP-v1.4

* attempt to make pio happy

* use directly ETSTimer instead of Ticker

…sp8266#6865)

* Make DNS resolution order selectable during runtime or compile time (only in dual stack mode).

* Extend IPv6 example to show usage of new hostByName function with selectable resolving order

* Fix function definition of fqdn_rt in IPv6.ino.

* Fix function call.

* Fix missing bracket...

* Only run if built with dual stack support

* Make DNS resolution order selectable during runtime or compile time (only in dual stack mode).

* Extend IPv6 example to show usage of new hostByName function with selectable resolving order

* Fix function definition of fqdn_rt in IPv6 example.

* Implement enum class for resolve type

* Fix example IPv6.ino

* Fix typedef in ESP8266WiFiGeneric.h function call

* Change enum class definition to not depend on lwip/dns.h

* Move err_t err definition outside switch. Fix typecast.

* Always define DNSResolveType as pio test otherwise failes even if the enum class isn't used.

Co-authored-by: altelch <heiko.krupp@rhrk.uni-kl.de>
Co-authored-by: david gauchard <gauchard@laas.fr>

Co-authored-by: Luiss <luiss@mind.cc>
Co-authored-by: david gauchard <gauchard@laas.fr>
Co-authored-by: Develo <deveyes@gmail.com>
Co-authored-by: Earle F. Philhower, III <earlephilhower@yahoo.com>

- Updates to latest Delegate class.
- Minor update to example code.

lwIP's tcp/udp_connect() and tcp/udp_bind() functions automatically
set the zone if it is required but missing, but udp_connect() is not
used so this doesn't happen.

Explicitly set the zone to the default network interface if it is
required for the type of address being used. Otherwise there is no
zone set and packets to a link local destination don't go anywhere.

credit: Simon Arlott @nomis - similar to esp8266#6541 for TCP (esp8266#7207)

… functions marked as const (esp8266#7208)

Co-authored-by: Luiss <luiss@mind.cc>

* mDNS: protect MDNSResponder::queryService against misuse

* fix style

)

* At least the F_CPU define in host mock.h is needed by host Arduino.h - need to include Arduino.h further down in mock.h for this to work.

* Geting the include order right

* Prepare for runtime CPU clock rate selection

* Fix compile for not defined F_CPU

If defined F_CPU, make getCpuFreqMHz() a constexpr

* Use defines for register CPU2X instead of hex value

* Fix build for host - getCpuFreqMHz there was also in conflict with getCycleCount, using F_CPU:

tests/host/common/mock.h:#define F_CPU 80000000 (!)

* Asymmetrical includes and defines on host

* Support restart switch from 160MHz to 80MHz, e.g for OTA. Fixes esp8266#579

* Allow waveforms to be specified in clock cycles

Allow the PWM to specify sub-microsecond waveform edges, as have been
proposed by @dok-net and me.  No other changes intended.

This will increase the linearity at 30 and 40 kHZ PWM rates, but leave
most other things unaffected.

* Cycle-accurate wafveform to specify Tone periods

Co-authored-by: Develo <deveyes@gmail.com>

The OTA script was not reporting the actual reported upload status from
the ESP8266, and instead always printed "Result: OK" no matter what
happened.

Now check for ERROR or OK in final message (and ensure the message is
not accidentally merged with the final byte count) and report properly.

Fixes esp8266#7162

)

Fixes exception 28 in IPAddress(const ipv4_addr* fw_addr); with null ip_addr
pointer passed in by WiFiCient.cpp localIP(). I assumed that localIP()
was called shortly after _pcb became null.

…6#7217)