various fixes for Open Watcom build

- fix build for OS/2
- fix build for Open Watcom 1.9

src/wolfio.c

@@ -1251,6 +1251,9 @@ int wolfIO_SendTo(SOCKET_T sd, WOLFSSL_BIO_ADDR *addr, char *buf, int sz, int wr
         ret = ioctlsocket(sockfd, FIONBIO, &blocking);
         if (ret == SOCKET_ERROR)
             ret = WOLFSSL_FATAL_ERROR;
+    #elif defined(__WATCOMC__) && defined(__OS2__)
+        if (ioctl(sockfd, FIONBIO, &non_blocking) == -1)
+            ret = WOLFSSL_FATAL_ERROR;
     #else
         ret = fcntl(sockfd, F_GETFL, 0);
         if (ret >= 0) {
@@ -1290,9 +1293,9 @@ int wolfIO_SendTo(SOCKET_T sd, WOLFSSL_BIO_ADDR *addr, char *buf, int sz, int wr
 
         ret = select(nfds, &rfds, &wfds, NULL, &timeout);
         if (ret == 0) {
-        #ifdef DEBUG_HTTP
+    #ifdef DEBUG_HTTP
             fprintf(stderr, "Timeout: %d\n", ret);
-        #endif
+    #endif
             return HTTP_TIMEOUT;
         }
         else if (ret > 0) {

wolfcrypt/benchmark/benchmark.c

@@ -14997,6 +14997,10 @@ void bench_sphincsKeySign(byte level, byte optim)
         return (double)us / 1000000.0;
     }
 
+#elif defined(__WATCOMC__)
+
+    #include <time.h>
+    WC_INLINE double current_time(int reset) { (void)reset; return ((double)clock())/CLOCKS_PER_SEC; }
 #else
 
     #include <time.h>

wolfssl/test.h

@@ -85,11 +85,50 @@
     #endif /* HAVE_ECC */
 #endif /*HAVE_PK_CALLBACKS */
 
-#ifdef USE_WINDOWS_API
+#ifdef __WATCOMC__
+    #define SNPRINTF snprintf
+    #if defined(__NT__)
+        #include <winsock2.h>
+        #include <ws2tcpip.h>
+        #include <process.h>
+        #ifdef TEST_IPV6            /* don't require newer SDK for IPV4 */
+            #include <wspiapi.h>
+        #endif
+        #define SOCKET_T SOCKET
+        #define XSLEEP_MS(t) Sleep(t)
+    #elif defined(__OS2__)
+        #include <netdb.h>
+        #include <sys/ioctl.h>
+        #include <tcpustd.h>
+        #define SOCKET_T int
+    #elif defined(__UNIX__)
+        #include <string.h>
+        #include <netdb.h>
+        #include <netinet/tcp.h>
+        #ifndef WOLFSSL_NDS
+            #include <sys/ioctl.h>
+        #endif
+        #include <time.h>
+        #include <sys/time.h>
+        #ifdef HAVE_PTHREAD
+            #include <pthread.h>
+        #endif
+        #define SOCKET_T int
+        #ifndef SO_NOSIGPIPE
+            #include <signal.h>  /* ignore SIGPIPE */
+        #endif
+
+        #define XSLEEP_MS(m) \
+            { \
+                struct timespec req = { (m)/1000, ((m) % 1000) * 1000 }; \
+                nanosleep( &req, NULL ); \
+            }
+    #endif
+#elif defined(USE_WINDOWS_API)
     #include <winsock2.h>
+    #include <ws2tcpip.h>
     #include <process.h>
     #ifdef TEST_IPV6            /* don't require newer SDK for IPV4 */
-        #include <ws2tcpip.h>
         #include <wspiapi.h>
     #endif
     #define SOCKET_T SOCKET
@@ -1429,7 +1468,7 @@ static WC_INLINE void tcp_socket(SOCKET_T* sockfd, int udp, int sctp)
         err_sys_with_errno("socket failed\n");
     }
 
-#ifndef USE_WINDOWS_API
+#if !defined(USE_WINDOWS_API) && !defined(__WATCOMC__) && !defined(__OS2__)
 #ifdef SO_NOSIGPIPE
     {
         int       on = 1;
@@ -1457,7 +1496,7 @@ static WC_INLINE void tcp_socket(SOCKET_T* sockfd, int udp, int sctp)
             err_sys_with_errno("setsockopt TCP_NODELAY failed\n");
     }
 #endif
-#endif  /* USE_WINDOWS_API */
+#endif  /* !defined(USE_WINDOWS_API) && !defined(__WATCOMC__) && !defined(__OS2__) */
 }
 
 #if defined(WOLFSSL_WOLFSENTRY_HOOKS) && defined(WOLFSENTRY_H)
@@ -1801,6 +1840,10 @@ static WC_INLINE void tcp_set_nonblocking(SOCKET_T* sockfd)
         || defined (WOLFSSL_TIRTOS)|| defined(WOLFSSL_VXWORKS) \
         || defined(WOLFSSL_ZEPHYR)
          /* non blocking not supported, for now */
+    #elif defined(__WATCOMC__) && defined(__OS2__)
+        int blocking = 1;
+        if (ioctl(*sockfd, FIONBIO, &blocking) == -1)
+            err_sys_with_errno("ioctl failed");
     #else
         int flags = fcntl(*sockfd, F_GETFL, 0);
         if (flags < 0)
@@ -1822,6 +1865,10 @@ static WC_INLINE void tcp_set_blocking(SOCKET_T* sockfd)
         || defined (WOLFSSL_TIRTOS)|| defined(WOLFSSL_VXWORKS) \
         || defined(WOLFSSL_ZEPHYR)
          /* non blocking not supported, for now */
+    #elif defined(__WATCOMC__) && defined(__OS2__)
+        int blocking = 0;
+        if (ioctl(*sockfd, FIONBIO, &blocking) == -1)
+            err_sys_with_errno("ioctl failed");
     #else
         int flags = fcntl(*sockfd, F_GETFL, 0);
         if (flags < 0)

wolfssl/wolfcrypt/ecc.h

@@ -287,7 +287,7 @@ typedef byte   ecc_oid_t;
 #endif
 
 
-#if !defined(WOLFSSL_ECC_CURVE_STATIC) && defined(USE_WINDOWS_API)
+#if !defined(WOLFSSL_ECC_CURVE_STATIC) && defined(USE_WINDOWS_API) && !defined(__WATCOMC__)
     /* MSC does something different with the pointers to the arrays than GCC,
      * and it causes the FIPS checksum to fail. In the case of windows builds,
      * store everything as arrays instead of pointers to strings. */

wolfssl/wolfcrypt/types.h

@@ -922,6 +922,13 @@ typedef struct w64wrapper {
             /* use only Thread Safe version of strtok */
             #if defined(USE_WOLF_STRTOK)
                 #define XSTRTOK(s1,d,ptr) wc_strtok((s1),(d),(ptr))
+            #elif defined(__WATCOMC__)
+                #if __WATCOMC__ < 1300
+                    #define USE_WOLF_STRTOK
+                    #define XSTRTOK(s1,d,ptr) wc_strtok((s1),(d),(ptr))
+                #else
+                    #define XSTRTOK(s1,d,ptr) strtok_r((s1),(d),(ptr))
+                #endif
             #elif defined(USE_WINDOWS_API) || defined(INTIME_RTOS)
                 #define XSTRTOK(s1,d,ptr) strtok_s((s1),(d),(ptr))
             #else
@@ -1503,6 +1510,7 @@ typedef struct w64wrapper {
             #define WOLFSSL_THREAD __stdcall
             #define WOLFSSL_THREAD_NO_JOIN _WCCALLBACK
         #elif defined(__OS2__)
+            #define WOLFSSL_THREAD_VOID_RETURN
             typedef void          THREAD_RETURN;
             typedef TID           THREAD_TYPE;
             typedef struct COND_TYPE {

wolfssl/wolfcrypt/visibility.h

@@ -51,7 +51,14 @@
         #define WOLFSSL_LOCAL
     #endif /* HAVE_VISIBILITY */
 #else /* BUILDING_WOLFSSL */
-    #if defined(_MSC_VER) || defined(__MINGW32__) || defined(__CYGWIN__) || \
+    #if defined(__WATCOMC__)
+        #if defined(WOLFSSL_DLL) && defined(__NT__)
+            #define WOLFSSL_API __declspec(dllimport)
+        #else
+            #define WOLFSSL_API
+        #endif
+        #define WOLFSSL_LOCAL
+    #elif defined(_MSC_VER) || defined(__MINGW32__) || defined(__CYGWIN__) || \
         defined(_WIN32_WCE) || defined(__WATCOMC__)
         #if defined(WOLFSSL_DLL)
             #define WOLFSSL_API __declspec(dllimport)

wolfssl/wolfcrypt/wc_port.h

@@ -120,13 +120,31 @@
 #endif
 
 /* THREADING/MUTEX SECTION */
-#if defined(__WATCOMC__)
-    #if !defined(SINGLE_THREADED)
+#if defined(SINGLE_THREADED) && defined(NO_FILESYSTEM)
+    /* No system headers required for build. */
+#elif defined(__WATCOMC__)
+    #if defined(SINGLE_THREADED)
+        #if defined(USE_WINDOWS_API)
+            #define _WINSOCKAPI_ /* block inclusion of winsock.h header file */
+            #include <windows.h>
+            #undef _WINSOCKAPI_ /* undefine it for MINGW winsock2.h header file */
+            #ifndef WOLFSSL_USER_IO
+                #include <winsock2.h>
+                #include <ws2tcpip.h> /* required for InetPton */
+            #endif
+        #elif defined(__OS2__)
+            #include <os2.h>
+        #endif
+    #else
         #if defined(USE_WINDOWS_API)
             #define _WINSOCKAPI_ /* block inclusion of winsock.h header file */
             #include <windows.h>
             #undef _WINSOCKAPI_ /* undefine it for MINGW winsock2.h header file */
             #include <process.h>
+            #ifndef WOLFSSL_USER_IO
+                #include <winsock2.h>
+                #include <ws2tcpip.h> /* required for InetPton */
+            #endif
         #elif defined(__OS2__)
             #define INCL_DOSSEMAPHORES
             #define INCL_DOSPROCESS
@@ -140,17 +158,7 @@
                 #include <pthread.h>
             #endif
         #endif
-    #else
-        #if defined(USE_WINDOWS_API)
-            #define _WINSOCKAPI_ /* block inclusion of winsock.h header file */
-            #include <windows.h>
-            #undef _WINSOCKAPI_ /* undefine it for MINGW winsock2.h header file */
-        #elif defined(__OS2__)
-            #include <os2.h>
-        #endif
     #endif
-#elif defined(SINGLE_THREADED) && defined(NO_FILESYSTEM)
-    /* No system headers required for build. */
 #elif defined(USE_WINDOWS_API)
     #if defined(WOLFSSL_PTHREADS)
         #include <pthread.h>
@@ -926,7 +934,25 @@ WOLFSSL_ABI WOLFSSL_API int wolfCrypt_Cleanup(void);
 
     #if !defined(NO_WOLFSSL_DIR)\
         && !defined(WOLFSSL_NUCLEUS) && !defined(WOLFSSL_NUCLEUS_1_2)
-        #if defined(USE_WINDOWS_API)
+        #if defined(__WATCOMC__)
+            #include <unistd.h>
+            #include <sys/stat.h>
+            #define XWRITE      write
+            #define XREAD       read
+            #define XCLOSE      close
+            #define XSTAT       stat
+            #define XS_ISREG(s) S_ISREG(s)
+            #if defined(__UNIX__)
+                #include <dirent.h>
+                #define SEPARATOR_CHAR ':'
+            #else
+                #include <direct.h>
+                #define SEPARATOR_CHAR ';'
+            #endif
+            #if defined(__NT__)
+                #define XALTHOMEVARNAME "USERPROFILE"
+            #endif
+        #elif defined(USE_WINDOWS_API)
             #include <io.h>
             #include <sys/stat.h>
             #ifndef XSTAT
@@ -964,9 +990,7 @@ WOLFSSL_ABI WOLFSSL_API int wolfCrypt_Cleanup(void);
             #define SEPARATOR_CHAR ':'
 
         #else
-            #ifndef NO_WOLFSSL_DIR
-                #include <dirent.h>
-            #endif
+            #include <dirent.h>
             #include <unistd.h>
             #include <sys/stat.h>
             #define XWRITE      write