+int curlx_sztosi(ssize_t sznum);
+
+size_t curlx_sitouz(int sinum);
+
+#ifdef USE_WINSOCK
+
+int curlx_sktosi(curl_socket_t s);
+
+curl_socket_t curlx_sitosk(int i);
+
+#endif /* USE_WINSOCK */
+
+#if defined(WIN32) || defined(_WIN32)
+
+ssize_t curlx_read(int fd, void *buf, size_t count);
+
+ssize_t curlx_write(int fd, const void *buf, size_t count);
+
+#ifndef BUILDING_WARNLESS_C
+# undef read
+# define read(fd, buf, count) curlx_read(fd, buf, count)
+# undef write
+# define write(fd, buf, count) curlx_write(fd, buf, count)
+#endif
+
+#endif /* WIN32 || _WIN32 */
+
+#if defined(__INTEL_COMPILER) && defined(__unix__)
+
+int curlx_FD_ISSET(int fd, fd_set *fdset);
+
+void curlx_FD_SET(int fd, fd_set *fdset);
+
+void curlx_FD_ZERO(fd_set *fdset);
+
+unsigned short curlx_htons(unsigned short usnum);
+
+unsigned short curlx_ntohs(unsigned short usnum);
+
+#ifndef BUILDING_WARNLESS_C
+# undef FD_ISSET
+# define FD_ISSET(a,b) curlx_FD_ISSET((a),(b))
+# undef FD_SET
+# define FD_SET(a,b) curlx_FD_SET((a),(b))
+# undef FD_ZERO
+# define FD_ZERO(a) curlx_FD_ZERO((a))
+# undef htons
+# define htons(a) curlx_htons((a))
+# undef ntohs
+# define ntohs(a) curlx_ntohs((a))
+#endif
+
+#endif /* __INTEL_COMPILER && __unix__ */
+