mprintf.h: remove #ifdef CURLDEBUG

... and as a consequence, introduce curl_printf.h with that re-define
magic instead and make all libcurl code use that instead.

http_digest: Post SSPI support tidy up

Post tidy up to ensure commonality of code style and variable names.

http_digest: Added required SSPI based variables to digest structure

http_digest: Fixed memory leaks from commit 6f8d8131b1

http_digest: Fixed compilation errors from commit 6f8d8131b1

error: invalid operands to binary
warning: pointer targets in assignment differ in signedness

http_digest: Moved response generation into SASL module

http_digest: Moved challenge decoding into SASL module

http_digest: Moved clean-up function into SASL module

http_digest: Moved algorithm definitions to SASL module

http_digest: Use CURLcode instead of CURLdigest

To provide consistent behaviour between the various HTTP authentication
functions use CURLcode based error codes for Curl_input_digest()

http_digest: Use CURLcode instead of CURLdigest

To provide consistent behaviour between the various HTTP authentication
functions use CURLcode based error codes for Curl_input_digest()
especially as the calling code doesn't use the specific error code just
that it failed.

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code cleanup: We prefer 'CURLcode result'

code cleanup: we prefer 'CURLcode result'

... for the local variable name in functions holding the return
code. Using the same name universally makes code easier to read and
follow.

code cleanup: we prefer 'CURLcode result'

... for the local variable name in functions holding the return
code. Using the same name universally makes code easier to read and
follow.

Also, unify code for checking for CURLcode errors with:

if(result) or if(!result)

instead of

if(result == CURLE_OK), if(CURLE_OK == result) or if(result != CURLE_OK)

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random: use Curl_rand() for proper random data

The SASL/Digest previously used the current time's seconds +
microseconds to add randomness but it is much better to instead get more
d

random: use Curl_rand() for proper random data

The SASL/Digest previously used the current time's seconds +
microseconds to add randomness but it is much better to instead get more
data from Curl_rand().

It will also allow us to easier "fake" that for debug builds on demand
in a future.

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vtls: renamed sslgen.[ch] to vtls.[ch]

vtls: created subdir, moved sslgen.[ch] there, updated all include lines

digest: fix CURLAUTH_DIGEST_IE

The URI that is passed in as part of the Authorization: header needs to
be cut off at '?' if CURLAUTH_DIGEST_IE is set. Previously the code only
did wh

digest: fix CURLAUTH_DIGEST_IE

The URI that is passed in as part of the Authorization: header needs to
be cut off at '?' if CURLAUTH_DIGEST_IE is set. Previously the code only
did when calculating the MD5sum.

Bug: http://curl.haxx.se/bug/view.cgi?id=1308
Patched-by: Sergey Tatarincev

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http: Added authentication message header value extraction

...following recent changes to Curl_base64_decode() rather than trying
to parse a header line for the authentication mechanisms

http: Added authentication message header value extraction

...following recent changes to Curl_base64_decode() rather than trying
to parse a header line for the authentication mechanisms which is CRLF
terminated and inline zero terminate it.

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http_digest.c: SIGSEGV and OOM handling fixes

digest: append the timer to the random for the nonce

digest: improve nonce generation

Use the new improved Curl_rand() to generate better random nonce for
Digest auth.

Curl_output_digest: support auth-int for empty entity body

By always returning the md5 for an empty body when auth-int is asked
for, libcurl now at least sometimes does the right thing.

Curl_output_digest: support auth-int for empty entity body

By always returning the md5 for an empty body when auth-int is asked
for, libcurl now at least sometimes does the right thing.

Bug: http://curl.haxx.se/bug/view.cgi?id=1235
Patched-by: Nach M. S.

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Digest auth: escape user names with \ or " in them

When sending the HTTP Authorization: header for digest, the user name
needs to be escaped if it contains a double-quote or backslash.

Digest auth: escape user names with \ or " in them

When sending the HTTP Authorization: header for digest, the user name
needs to be escaped if it contains a double-quote or backslash.

Test 1229 was added to verify

Reported and fixed by: Nach M. S
Bug: http://curl.haxx.se/bug/view.cgi?id=1230

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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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build: fix circular header inclusion with other packages

This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.

Removes the n

build: fix circular header inclusion with other packages

This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.

Removes the need and usage of a header inclusion guard foreign
to libcurl. [1]

Removes the need and presence of an alarming notice we carried
in old setup_once.h [2]

----------------------------------------

1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard
up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H,
this single inclusion guard is enough to ensure that inclusion of
lib/setup_once.h done from lib/setup.h is only done once.

Additionally lib/setup.h has always used __SETUP_ONCE_H macro to
protect inclusion of setup_once.h even after commit ec691ca3, this
was to avoid a circular header inclusion triggered when building a
c-ares enabled version with c-ares sources available which also has
a setup_once.h header. Commit ec691ca3 exposes the real nature of
__SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard
foreign to libcurl belonging to c-ares's setup_once.h

The renaming this commit does, fixes the circular header inclusion,
and as such removes the need and usage of a header inclusion guard
foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl.

2 - Due to the circular interdependency of old lib/setup_once.h and the
c-ares setup_once.h header, old file lib/setup_once.h has carried
back from 2006 up to now days an alarming and prominent notice about
the need of keeping libcurl's and c-ares's setup_once.h in sync.

Given that this commit fixes the circular interdependency, the need
and presence of mentioned notice is removed.

All mentioned interdependencies come back from now old days when
the c-ares project lived inside a curl subdirectory. This commit
removes last traces of such fact.

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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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