Updated included headers to support compilation on Windows (using Visual C++)

- most of posix related functions and constants in unistd.h can be
  found in io.h in Visual C++
- introduced src/compat/msvc.h to adjust for compiler differences (and
  avoid updating code with #ifdef blocks for Windows support)
- removed some included headers that are not needed (both on Unix and
  Windows builds)

examples/multiprocess_c/multi.c

@@ -19,7 +19,11 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#ifndef WIN32
 #include <unistd.h>
+#else
+#include <io.h>
+#endif
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <sys/time.h>

examples/using_bodies_in_chunks/simple_request.cc

@@ -13,7 +13,11 @@
  *
  */
 
+#ifndef WIN32
 #include <unistd.h>
+#else
+#include <io.h>
+#endif
 #include <stdio.h>
 #include <string.h>
 

src/actions/transformations/html_entity_decode.cc

@@ -27,6 +27,10 @@
 #include "modsecurity/transaction.h"
 #include "src/actions/transformations/transformation.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 
 namespace modsecurity {
 namespace actions {

src/actions/transformations/lower_case.cc

@@ -17,6 +17,7 @@
 
 #include <algorithm>
 #include <string>
+#include <locale>
 
 #include "modsecurity/transaction.h"
 #include "src/actions/transformations/transformation.h"

src/actions/transformations/upper_case.cc

@@ -17,6 +17,7 @@
 
 #include <algorithm>
 #include <string>
+#include <locale>
 
 #include "modsecurity/transaction.h"
 #include "src/actions/transformations/transformation.h"

src/audit_log/writer/parallel.cc

@@ -21,7 +21,12 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#ifndef WIN32
 #include <unistd.h>
+#else
+#include <io.h>
+#include "src/compat/msvc.h"
+#endif
 #include <stdlib.h>
 
 #include <fstream>

src/audit_log/writer/writer.h

@@ -18,8 +18,10 @@
 
 
 #include <stdio.h>
+#ifndef WIN32
 #include <sys/ipc.h>
 #include <sys/shm.h>
+#endif
 #include <sys/types.h>
 
 #include <iostream>

src/collection/backend/in_memory-per_process.h

@@ -12,6 +12,7 @@
  * directly using the email address security@modsecurity.org.
  *
  */
+#include <pthread.h>
 
 
 #ifdef __cplusplus

src/collection/backend/lmdb.cc

@@ -18,7 +18,11 @@
 #include "src/collection/backend/collection_data.h"
 
 #include <sys/types.h>
+#ifndef WIN32
 #include <unistd.h>
+#else
+#include <io.h>
+#endif
 
 #include <string>
 #include <memory>

src/compat/msvc.h

@@ -0,0 +1,22 @@
+#ifndef __COMPAT_MSVC
+#define __COMPAT_MSVC
+
+#include <time.h>
+
+#if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
+#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+
+#define strcasecmp   _stricmp
+#define strncasecmp  _strnicmp
+#define strtok_r     strtok_s
+#define popen        _popen
+#define pclose       _pclose
+
+inline tm* localtime_r(const time_t* tin, tm* tout) {
+  if (!localtime_s(tout, tin)) return tout;
+
+  return nullptr;
+}
+
+#endif

src/debug_log/debug_log.cc

@@ -15,10 +15,6 @@
 
 #include "modsecurity/debug_log.h"
 
-#include <stddef.h>
-
-#include <fstream>
-
 #include "src/debug_log/debug_log_writer.h"
 #include "src/debug_log_writer_agent.h"
 

src/operators/inspect_file.cc

@@ -23,6 +23,10 @@
 #include "src/operators/operator.h"
 #include "src/utils/system.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 namespace modsecurity {
 namespace operators {
 

src/operators/rbl.cc

@@ -16,10 +16,15 @@
 #include "src/operators/rbl.h"
 
 #include <sys/types.h>
+#ifndef WIN32
 #include <sys/socket.h>
 #include <netdb.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#else
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#endif
 
 #include <string>
 

src/operators/rbl.h

@@ -17,10 +17,14 @@
 #define SRC_OPERATORS_RBL_H_
 
 #include <sys/types.h>
+#ifndef WIN32
 #include <sys/socket.h>
 #include <netdb.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#else
+#include <winsock2.h>
+#endif
 
 #include <string>
 #include <memory>

src/parser/seclang-scanner.cc

@@ -4952,7 +4952,11 @@ static std::stack<int> YY_PREVIOUS_STATE;
  * The user has a chance to override it with an option.
  */
 /* %if-c-only */
+#ifndef WIN32
 #include <unistd.h>
+#else
+#include <io.h>
+#endif
 /* %endif */
 /* %if-c++-only */
 /* %endif */

src/rules_set_properties.cc

@@ -19,6 +19,10 @@
 #include "src/utils/string.h"
 #include "src/variables/variable.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 namespace modsecurity {
 
 

src/transaction.cc

@@ -53,6 +53,9 @@
 #include "src/actions/disruptive/allow.h"
 #include "src/variables/remote_user.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
 
 
 using modsecurity::actions::Action;

src/utils/geo_lookup.cc

@@ -13,10 +13,13 @@
  *
  */
 
+#ifndef WIN32
 #include <sys/socket.h>
-#include <sys/types.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#else
+#include <winsock2.h>
+#endif
 #include <string>
 
 #include <fstream>

src/utils/ip_tree.cc

@@ -15,10 +15,14 @@
 
 #include "src/utils/ip_tree.h"
 
+#ifndef WIN32
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#else
+#include <winsock2.h>
+#endif
 #include <string>
 
 #include <fstream>

src/utils/msc_tree.cc

@@ -15,9 +15,15 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#ifndef WIN32
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#else
+#include "src/compat/msvc.h"
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#endif
 
 #include "src/utils/msc_tree.h"
 

src/utils/string.cc

@@ -17,11 +17,6 @@
 #include <stdlib.h>
 #include <stddef.h>
 #include <string.h>
-#ifdef __OpenBSD__
-#include <glob.h>
-#else
-#include <wordexp.h>
-#endif
 #include <stdint.h>
 #include <inttypes.h>
 

src/utils/system.h

@@ -13,8 +13,6 @@
  *
  */
 
-#include <ctime>
-#include <iostream>
 #include <string>
 #include <list>
 

src/variables/time.cc

@@ -30,6 +30,10 @@
 
 #include "modsecurity/transaction.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 namespace modsecurity {
 namespace variables {
 

src/variables/time_day.cc

@@ -30,6 +30,10 @@
 
 #include "modsecurity/transaction.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 namespace modsecurity {
 namespace variables {
 

src/variables/time_hour.cc

@@ -30,6 +30,10 @@
 
 #include "modsecurity/transaction.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 namespace modsecurity {
 namespace variables {
 

src/variables/time_min.cc

@@ -30,6 +30,10 @@
 
 #include "modsecurity/transaction.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 namespace modsecurity {
 namespace variables {
 

src/variables/time_mon.cc

@@ -30,6 +30,10 @@
 
 #include "modsecurity/transaction.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 namespace modsecurity {
 namespace variables {
 

src/variables/time_sec.cc

@@ -30,6 +30,10 @@
 
 #include "modsecurity/transaction.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 namespace modsecurity {
 namespace variables {
 

src/variables/time_wday.cc

@@ -30,6 +30,10 @@
 
 #include "modsecurity/transaction.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 namespace modsecurity {
 namespace variables {
 

src/variables/time_year.cc

@@ -30,6 +30,10 @@
 
 #include "modsecurity/transaction.h"
 
+#ifdef WIN32
+#include "src/compat/msvc.h"
+#endif
+
 namespace modsecurity {
 namespace variables {
 

test/fuzzer/afl_fuzzer.cc

@@ -114,7 +114,11 @@ using namespace modsecurity;
 
 #include <stdio.h>
 #include <stdlib.h>
+#ifndef WIN32
 #include <unistd.h>
+#else
+#include <io.h>
+#endif
 #include <signal.h>
 #include <string.h>
 

test/regression/regression.cc

@@ -15,7 +15,11 @@
 
 #include <string.h>
 
+#ifndef WIN32
 #include <unistd.h>
+#else
+#include <io.h>
+#endif
 
 #include <ctime>
 #include <iostream>

tools/rules-check/rules-check.cc

@@ -15,7 +15,11 @@
 
 #include <string.h>
 #include <sys/stat.h>
+#ifndef WIN32
 #include <unistd.h>
+#else
+#include <io.h>
+#endif
 
 #include <ctime>
 #include <iostream>