lib: make CURLX_SET_BINMODE() and use it

Use it from libtests' `first.c` and thus also from units, and tunits.

Also:
- cmake: drop stray `curltool` lib dependency for units.
- units: stop depending on `src` headers.
- tests/server: drop depending on `src` headers.
  (the remaining one listed in the comments, `tool_xattr.h`, was not
  actually used from servers.)
- tests/server: drop duplicate curlx headers.
  (Except `warnless.h`, which is tricky on Windows.)

Closes #17672

tests/server/CMakeLists.txt

@@ -42,7 +42,6 @@ target_include_directories(${BUNDLE} PRIVATE
   "${PROJECT_BINARY_DIR}/lib"            # for "curl_config.h"
   "${PROJECT_SOURCE_DIR}/lib"            # for "curl_setup.h"
   "${PROJECT_SOURCE_DIR}/lib/curlx"      # for curlx
-  "${PROJECT_SOURCE_DIR}/src"            # for "tool_binmode.h", "tool_xattr.h"
   "${CMAKE_CURRENT_SOURCE_DIR}"          # for the generated bundle source to find included test sources
 )
 set_property(TARGET ${BUNDLE} APPEND PROPERTY COMPILE_DEFINITIONS "WITHOUT_LIBCURL")

tests/server/Makefile.am

@@ -31,14 +31,12 @@ AUTOMAKE_OPTIONS = foreign nostdinc
 # $(top_srcdir)/include is for libcurl's external include files
 # $(top_builddir)/lib is for libcurl's generated lib/curl_config.h file
 # $(top_srcdir)/lib for libcurl's lib/curl_setup.h and other "borrowed" files
-# $(top_srcdir)/src for "tool_binmode.h", "tool_xattr.h"
 # $(srcdir) for the generated bundle source to find included test sources
 
 AM_CPPFLAGS = -I$(top_srcdir)/include        \
               -I$(top_builddir)/lib          \
               -I$(top_srcdir)/lib            \
               -I$(top_srcdir)/lib/curlx      \
-              -I$(top_srcdir)/src            \
               -I$(srcdir)
 
 # Get BUNDLE, BUNDLE_SRC, FIRSTFILES, UTILS, CURLX_SRCS, TESTFILES variables

tests/server/mqttd.c

@@ -55,8 +55,6 @@
 #include <curlx.h> /* from the private lib dir */
 #include "getpart.h"
 
-#include "tool_binmode.h"
-
 /* include memdebug.h last */
 #include <memdebug.h>
 
@@ -985,9 +983,9 @@ static int test_mqttd(int argc, char *argv[])
     return 2;
 #endif
 
-  CURL_SET_BINMODE(stdin);
-  CURL_SET_BINMODE(stdout);
-  CURL_SET_BINMODE(stderr);
+  CURLX_SET_BINMODE(stdin);
+  CURLX_SET_BINMODE(stdout);
+  CURLX_SET_BINMODE(stderr);
 
   install_signal_handlers(FALSE);
 

tests/server/sockfilt.c

@@ -102,12 +102,8 @@
 #endif
 
 #include <curlx.h> /* from the private lib dir */
-#include "inet_pton.h"
-#include "timediff.h"
 #include "warnless.h" /* for read() */
 
-#include "tool_binmode.h"
-
 /* include memdebug.h last */
 #include <memdebug.h>
 
@@ -1495,9 +1491,9 @@ static int test_sockfilt(int argc, char *argv[])
     return 2;
 #endif
 
-  CURL_SET_BINMODE(stdin);
-  CURL_SET_BINMODE(stdout);
-  CURL_SET_BINMODE(stderr);
+  CURLX_SET_BINMODE(stdin);
+  CURLX_SET_BINMODE(stdout);
+  CURLX_SET_BINMODE(stderr);
 
   install_signal_handlers(false);
 

tests/server/socksd.c

@@ -74,8 +74,6 @@
 #endif
 
 #include <curlx.h> /* from the private lib dir */
-#include "inet_pton.h"
-#include "tool_binmode.h"
 
 /* include memdebug.h last */
 #include <memdebug.h>
@@ -1043,9 +1041,9 @@ static int test_socksd(int argc, char *argv[])
     return 2;
 #endif
 
-  CURL_SET_BINMODE(stdin);
-  CURL_SET_BINMODE(stdout);
-  CURL_SET_BINMODE(stderr);
+  CURLX_SET_BINMODE(stdin);
+  CURLX_SET_BINMODE(stdout);
+  CURLX_SET_BINMODE(stderr);
 
   install_signal_handlers(false);
 

tests/server/sws.c

@@ -51,7 +51,6 @@
 
 #include <curlx.h> /* from the private lib dir */
 #include "getpart.h"
-#include "inet_pton.h"
 
 /* include memdebug.h last */
 #include <memdebug.h>