Support for Signal calls.

Merge in RedPhone

// FREEBIE

jni/openssl/crypto/bio/bio_lcl.h

@@ -0,0 +1,36 @@
+#include <openssl/bio.h>
+
+#if BIO_FLAGS_UPLINK==0
+/* Shortcut UPLINK calls on most platforms... */
+#define	UP_stdin	stdin
+#define	UP_stdout	stdout
+#define	UP_stderr	stderr
+#define	UP_fprintf	fprintf
+#define	UP_fgets	fgets
+#define	UP_fread	fread
+#define	UP_fwrite	fwrite
+#undef	UP_fsetmod
+#define	UP_feof		feof
+#define	UP_fclose	fclose
+
+#define	UP_fopen	fopen
+#define	UP_fseek	fseek
+#define	UP_ftell	ftell
+#define	UP_fflush	fflush
+#define	UP_ferror	ferror
+#ifdef _WIN32
+#define	UP_fileno	_fileno
+#define	UP_open		_open
+#define	UP_read		_read
+#define	UP_write	_write
+#define	UP_lseek	_lseek
+#define	UP_close	_close
+#else
+#define	UP_fileno	fileno
+#define	UP_open		open
+#define	UP_read		read
+#define	UP_write	write
+#define	UP_lseek	lseek
+#define	UP_close	close
+#endif
+#endif