curl: create easy handles on-demand and not ahead of time

This should again enable crazy-large download ranges of the style
[1-10000000] that otherwise easily ran out of memory starting

curl: create easy handles on-demand and not ahead of time

This should again enable crazy-large download ranges of the style
[1-10000000] that otherwise easily ran out of memory starting in 7.66.0
when this new handle allocating scheme was introduced.

Reported-by: Peter Sumatra
Fixes #4393
Closes #4438

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curl: support parallel transfers

This is done by making sure each individual transfer is first added to a
linked list as then they can be performed serially, or at will, in
parallel.

curl: support parallel transfers

This is done by making sure each individual transfer is first added to a
linked list as then they can be performed serially, or at will, in
parallel.

Closes #3804

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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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strcasecompare: all case insensitive string compares ignore locale now

We had some confusions on when each function was used. We should not act
differently on different locales anyway.

strcasecompare: is the new name for strequal()

... to make it less likely that we forget that the function actually
does case insentive compares. Also replaced several invokes of the

strcasecompare: is the new name for strequal()

... to make it less likely that we forget that the function actually
does case insentive compares. Also replaced several invokes of the
function with a plain strcmp when case sensitivity is not an issue (like
comparing with "-").

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tool_operhlp: Check for backslashes in get_url_file_name

Extract the filename from the last slash or backslash. Prior to this
change backslashes could be part of the filename.

T

tool_operhlp: Check for backslashes in get_url_file_name

Extract the filename from the last slash or backslash. Prior to this
change backslashes could be part of the filename.

This change needed for the curl tool built for Cygwin. Refer to the
CYGWIN addendum in advisory 20160127B.

Bug: https://curl.haxx.se/docs/adv_20160127B.html

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tool_doswin: Improve sanitization processing

- Add unit test 1604 to test the sanitize_file_name function.

- Use -DCURL_STATICLIB when building libcurltool for unit testing.

tool_doswin: Improve sanitization processing

- Add unit test 1604 to test the sanitize_file_name function.

- Use -DCURL_STATICLIB when building libcurltool for unit testing.

- Better detection of reserved DOS device names.

- New flags to modify sanitize behavior:

SANITIZE_ALLOW_COLONS: Allow colons
SANITIZE_ALLOW_PATH: Allow path separators and colons
SANITIZE_ALLOW_RESERVED: Allow reserved device names
SANITIZE_ALLOW_TRUNCATE: Allow truncating a long filename

- Restore sanitization of banned characters from user-specified outfile.

Prior to this commit sanitization of a user-specified outfile was
temporarily disabled in 2b6dadc because there was no way to allow path
separators and colons through while replacing other banned characters.
Now in such a case we call the sanitize function with
SANITIZE_ALLOW_PATH which allows path separators and colons to pass
through.


Closes https://github.com/curl/curl/issues/624
Reported-by: Octavio Schroeder

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URLs: change all http:// URLs to https://

get_url_file_name: Fixed crash on OOM on debug build

This caused a null-pointer dereference which caused a few dozen
torture tests to fail.

get_url_file_name: make no slash equal empty string

get_url_file_name: never return a NULL string *and* OK

Change 987a4a73 assumes that as it simplifies life in the calling
function.

Reported-by: Fabian Keil

tool_cfgable: Renamed Configurable structure to OperationConfig

To allow for the addition of a global config structure and prevent
confusion between the two.

tool_operhlp: Consolidated engine output code into tool_help

tool_operate: Moved required argument getting into separate function

tool_operate: Moved main initialisation and cleanup code into tool_main

tool_operate: Moved memory tracking initialisation into tool_main

tool_operhlp.c: fix add_file_name_to_url() OOM handling

checksrc: ban unsafe functions

The list of unsafe functions currently consists of sprintf, vsprintf,
strcat, strncat and gets.

Subsequently, some existing code needed updating t

checksrc: ban unsafe functions

The list of unsafe functions currently consists of sprintf, vsprintf,
strcat, strncat and gets.

Subsequently, some existing code needed updating to avoid warnings on
this.

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remove ifdefs

Clarify the code by reducing ifdefs

Revert changes relative to lib/*.[ch] recent renaming

This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:

f871de0... build: make use

Revert changes relative to lib/*.[ch] recent renaming

This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:

f871de0... build: make use of 76 lib/*.h renamed files
ffd8e12... build: rename 76 lib/*.h files

This also reverts removal of redundant include guard (redundant thanks
to changes in above commits) done 2-12-2013, reverting 1 commit:

c087374... curl_setup.h: remove redundant include guard

This also reverts renaming and usage of lib/*.c source files done
3-12-2013, reverting 3 commits:

13606bb... build: make use of 93 lib/*.c renamed files
5b6e792... build: rename 93 lib/*.c files
7d83dff... build: commit 13606bbfde follow-up 1

Start of related discussion thread:

http://curl.haxx.se/mail/lib-2013-01/0012.html

Asking for confirmation on pushing this revertion commit:

http://curl.haxx.se/mail/lib-2013-01/0048.html

Confirmation summary:

http://curl.haxx.se/mail/lib-2013-01/0079.html

NOTICE: The list of 2 files that have been modified by other
intermixed commits, while renamed, and also by at least one
of the 6 commits this one reverts follows below. These 2 files
will exhibit a hole in history unless git's '--follow' option
is used when viewing logs.

lib/curl_imap.h
lib/curl_smtp.h

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build: make use of 76 lib/*.h renamed files

76 private header files renamed to use our standard naming scheme.

This change affects 322 files in libcurl's source tree.

tool_metalink: introduce metalink_cleanup() in the internal API

... to release resources allocated at global scope

my_useragent: shorten user-agent

The built-in user-agent will now only say curl/[version] and nothing
else in an attempt to decrease overhead in HTTP requests.

curl tool: make curl.h first header included in tool_setup.h

curl tool: use configuration files from lib directory

Configuration files such as curl_config.h and all config-*.h no longer exist
nor are generated/copied into 'src' directory, now thes

curl tool: use configuration files from lib directory

Configuration files such as curl_config.h and all config-*.h no longer exist
nor are generated/copied into 'src' directory, now these only exist in 'lib'
directory from where curl tool sources uses them.

Additionally old src/setup.h has been refactored into src/tool_setup.h which
now pulls lib/setup.h

The possibility of a makefile needing an include path adjustment exists.

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