tommink[at]post.pl reported in bug report #1337723

(http://curl.haxx.se/bug/view.cgi?id=1337723) that curl could not upload
binary data from stdin on Windows if the data contained control-Z (hex 1a)
since that is treated as end-of-file when read in text mode. Gisle Vanem
pointed out the fix, and I made both -T and --data-binary take advantage of
it.

src/main.c

@@ -1797,8 +1797,13 @@ static ParameterError getparameter(char *flag, /* f or -long-flag */
 
           nextarg++; /* pass the @ */
 
-          if(curlx_strequal("-", nextarg))
+          if(curlx_strequal("-", nextarg)) {
             file = stdin;
+#ifdef O_BINARY
+            if(subletter == 'b') /* forced binary */
+              setmode(fileno(stdin), O_BINARY);
+#endif
+          }
           else {
             file = fopen(nextarg, "rb");
             if(!file)
@@ -3620,6 +3625,9 @@ operate(struct Configurable *config, int argc, char *argv[])
 
         }
         else if(uploadfile && curlx_strequal(uploadfile, "-")) {
+#ifdef O_BINARY
+          setmode(fileno(stdin), O_BINARY);
+#endif
           infd = stdin;
         }