tests: introduce preprocessed test cases

The runtests script now always performs variable replacement on the
entire test source file before the test gets executed, and saves the
upda

tests: introduce preprocessed test cases

The runtests script now always performs variable replacement on the
entire test source file before the test gets executed, and saves the
updated version in a temporary file (log/test[num]) so that all test
case readers/servers can use that version (if present) and thus enjoy
the powers of test case variable substitution.

This is necessary to allow complete port number freedom.

Test 309 is updated to work with a non-fixed port number thanks to this.

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tests: run the sws server on "any port"

Makes the test servers for HTTP and Gopher pop up on a currently unused
port and runtests adapts to that!

Closes #5247

tests/server: move all signal handling routines to util.[ch]

Avoid code duplication to prepare for portability enhancements.

silly web server: silent a compilation warning

Recent gcc warns when byte count of strncpy() equals the destination
buffer size. Since the destination buffer is previously cleared and

silly web server: silent a compilation warning

Recent gcc warns when byte count of strncpy() equals the destination
buffer size. Since the destination buffer is previously cleared and
the source string is always shorter, reducing the byte count by one
silents the warning without affecting the result.

Closes #5059

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http: added 417 response treatment

When doing a request with a body + Expect: 100-continue and the server
responds with a 417, the same request will be retried immediately
without th

http: added 417 response treatment

When doing a request with a body + Expect: 100-continue and the server
responds with a 417, the same request will be retried immediately
without the Expect: header.

Added test 357 to verify.

Also added a control instruction to tell the sws test server to not read
the request body if Expect: is present, which the new test 357 uses.

Reported-by: bramus on github
Fixes #4949
Closes #4964

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cleanup: fix typos and wording in docs and comments

Closes #4869
Reviewed-by: Emil Engler and Daniel Gustafsson

tests: Fix bounce requests with truncated writes

Prior to this change the swsbounce check in service_connection could
fail because prevtestno and prevpartno were not set, which would cau

tests: Fix bounce requests with truncated writes

Prior to this change the swsbounce check in service_connection could
fail because prevtestno and prevpartno were not set, which would cause
the wrong response data to be sent to some tests and cause them to fail.

Ref: https://github.com/curl/curl/pull/4717#issuecomment-570240785

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sws: search for "Testno:" header uncondtionally if no testno

Even if the initial request line wasn't found. With the fix to 1455, the
test number is now detected correctly.

(Pro

sws: search for "Testno:" header uncondtionally if no testno

Even if the initial request line wasn't found. With the fix to 1455, the
test number is now detected correctly.

(Problem found when running tests in random order.)

Closes #4744

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sws: remove unused variables

Unused since commit 2f44e94.

Closes https://github.com/curl/curl/pull/3975

pipelining: removed

As previously planned and documented in DEPRECATE.md, all pipelining
code is removed.

Closes #3651

http: Implement trailing headers for chunked transfers

This adds the CURLOPT_TRAILERDATA and CURLOPT_TRAILERFUNCTION
options that allow a callback based approach to sending trailing head

http: Implement trailing headers for chunked transfers

This adds the CURLOPT_TRAILERDATA and CURLOPT_TRAILERFUNCTION
options that allow a callback based approach to sending trailing headers
with chunked transfers.

The test server (sws) was updated to take into account the detection of the
end of transfer in the case of trailing headers presence.

Test 1591 checks that trailing headers can be sent using libcurl.

Closes #3350

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snprintf: renamed and we now only use msnprintf()

The function does not return the same value as snprintf() normally does,
so readers may be mislead into thinking the code works differen

snprintf: renamed and we now only use msnprintf()

The function does not return the same value as snprintf() normally does,
so readers may be mislead into thinking the code works differently than
it actually does. A different function name makes this easier to detect.

Reported-by: Tomas Hoger
Assisted-by: Daniel Gustafsson
Fixes #3296
Closes #3297

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whitespace fixes

- replace tabs with spaces where possible
- remove line ending spaces
- remove double/triple newlines at EOF
- fix a non-UTF-8 character
- cleanup a few inde

whitespace fixes

- replace tabs with spaces where possible
- remove line ending spaces
- remove double/triple newlines at EOF
- fix a non-UTF-8 character
- cleanup a few indentations/line continuations
in manual examples

Closes https://github.com/curl/curl/pull/3037

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http: fix for tiny "HTTP/0.9" response

Deal with tiny "HTTP/0.9" (header-less) responses by checking the
status-line early, even before a full "HTTP/" is received to allow
detecting

http: fix for tiny "HTTP/0.9" response

Deal with tiny "HTTP/0.9" (header-less) responses by checking the
status-line early, even before a full "HTTP/" is received to allow
detecting 0.9 properly.

Test 1266 and 1267 added to verify.

Fixes #2420
Closes #2872

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sws: handle EINTR when calling select()

Closes https://github.com/curl/curl/pull/2808

cppcheck: fix warnings

- Get rid of variable that was generating false positive warning
(unitialized)

- Fix issues in tests

- Reduce scope of several variables all over

cppcheck: fix warnings

- Get rid of variable that was generating false positive warning
(unitialized)

- Fix issues in tests

- Reduce scope of several variables all over

etc

Closes #2631

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spelling fixes

Detected using the `codespell` tool (version 1.13.0).

Also secure and fix an URL.

spelling fixes

Detected using the `codespell` tool.

Also contains one URL protocol upgrade.

Closes https://github.com/curl/curl/pull/2334

tests: added netinet/in6.h includes in test servers

tests: add initial gssapi test using stub implementation

The stub implementation is pre-loaded using LD_PRELOAD
and emulates common gssapi uses (only builds if curl is
initially buil

tests: add initial gssapi test using stub implementation

The stub implementation is pre-loaded using LD_PRELOAD
and emulates common gssapi uses (only builds if curl is
initially built with gssapi support).

The initial tests are currently disabled for debug builds
as LD_PRELOAD is not used then.

Ref: https://github.com/curl/curl/pull/1687

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code style: use spaces around pluses

code style: use spaces around equals signs

http: add --strip-path-slash and CURLOPT_STRIP_PATH_SLASH

... to enable sending "OPTIONS *" which wasn't possible previously.

This option currently only works for HTTP.

Add

http: add --strip-path-slash and CURLOPT_STRIP_PATH_SLASH

... to enable sending "OPTIONS *" which wasn't possible previously.

This option currently only works for HTTP.

Added test cases 1298 + 1299 to verify

Fixes #1280
Closes #1462

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http-proxy: deal with EAGAIN

... the previous code would reset the header length wrongly (since
5113ad0424). This makes test 1060 reliable again.

Also: make sws send even smalle

http-proxy: deal with EAGAIN

... the previous code would reset the header length wrongly (since
5113ad0424). This makes test 1060 reliable again.

Also: make sws send even smaller chunks of data to increase the
likeliness of this happening.

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tests/server: make string literals const

assign string literals to const char * instead of char * in order to
avoid a lot of these warnings:
cast from 'const char *' to 'char *' drop

tests/server: make string literals const

assign string literals to const char * instead of char * in order to
avoid a lot of these warnings:
cast from 'const char *' to 'char *' drops const qualifier
[-Wcast-qual]

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