warnless: add wrapper function for read and write on Windows

2 files changed, 29 insertions, 0 deletions

diff --git a/lib/warnless.c b/lib/warnless.c
index 7a4b01eb6..c14d05f09 100644
--- a/lib/warnless.c
+++ b/lib/warnless.c
@@ -400,6 +400,20 @@ 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)
+{
+  return (ssize_t)read(fd, buf, curlx_uztoui(count));
+}
+
+ssize_t curlx_write(int fd, const void *buf, size_t count)
+{
+  return (ssize_t)write(fd, buf, curlx_uztoui(count));
+}
+
+#endif /* WIN32 || _WIN32 */
+
 #if defined(__INTEL_COMPILER) && defined(__unix__)
 
 int curlx_FD_ISSET(int fd, fd_set *fdset)
diff --git a/lib/warnless.h b/lib/warnless.h
index f22f0bae4..93195f6fe 100644
--- a/lib/warnless.h
+++ b/lib/warnless.h
@@ -60,6 +60,21 @@ 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);