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Diffstat (limited to 'src/osd/sdl/sdlptty_unix.cpp')
-rw-r--r--src/osd/sdl/sdlptty_unix.cpp160
1 files changed, 160 insertions, 0 deletions
diff --git a/src/osd/sdl/sdlptty_unix.cpp b/src/osd/sdl/sdlptty_unix.cpp
new file mode 100644
index 00000000000..abe4ba8db0b
--- /dev/null
+++ b/src/osd/sdl/sdlptty_unix.cpp
@@ -0,0 +1,160 @@
+// license:BSD-3-Clause
+// copyright-holders:Olivier Galibert, R. Belmont
+//============================================================
+//
+// sdlptty_unix.c - SDL pseudo tty access functions
+//
+// SDLMAME by Olivier Galibert and R. Belmont
+//
+//============================================================
+
+#if (!defined(SDLMAME_SOLARIS) && !(defined(SDLMAME_OS2)))
+
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#if defined(SDLMAME_FREEBSD) || defined(SDLMAME_DRAGONFLY)
+# include <termios.h>
+# include <libutil.h>
+#elif defined(SDLMAME_NETBSD) || defined(SDLMAME_MACOSX)
+# include <util.h>
+#elif defined(SDLMAME_OPENBSD)
+# include <termios.h>
+# include <util.h>
+#elif defined(SDLMAME_LINUX) || defined(SDLMAME_EMSCRIPTEN)
+# include <pty.h>
+#elif defined(SDLMAME_HAIKU)
+# include <bsd/pty.h>
+#endif
+#include <stdlib.h>
+
+#include "sdlfile.h"
+
+#if defined(SDLMAME_MACOSX)
+const char *sdlfile_ptty_identifier = "/dev/pty";
+#else
+const char *sdlfile_ptty_identifier = "/dev/pts";
+#endif
+
+file_error sdl_open_ptty(const char *path, UINT32 openflags, osd_file **file, UINT64 *filesize)
+{
+ int master;
+ int aslave;
+ struct termios tios;
+ int oldflags;
+
+ memset(&tios , 0 , sizeof(tios));
+ cfmakeraw(&tios);
+
+ if (openpty(&master, &aslave, NULL, &tios, NULL) >= 0)
+ {
+ oldflags = fcntl(master, F_GETFL, 0);
+ if (oldflags == -1) {
+ close(master);
+ return FILERR_FAILURE;
+ }
+
+ fcntl(master, F_SETFL, oldflags | O_NONBLOCK);
+ close(aslave);
+ (*file)->handle = master;
+ *filesize = 0;
+ }
+ else
+ {
+ return FILERR_ACCESS_DENIED;
+ }
+
+ return FILERR_NONE;
+}
+
+file_error sdl_read_ptty(osd_file *file, void *buffer, UINT64 offset, UINT32 count, UINT32 *actual)
+{
+ ssize_t result;
+
+ result = read(file->handle, buffer, count);
+
+ if (result < 0)
+ {
+ return error_to_file_error(errno);
+ }
+
+ if (actual != NULL )
+ {
+ *actual = result;
+ }
+
+ return FILERR_NONE;
+}
+
+file_error sdl_write_ptty(osd_file *file, const void *buffer, UINT64 offset, UINT32 count, UINT32 *actual)
+{
+ ssize_t result;
+ result = write(file->handle, buffer, count);
+
+ if (result < 0)
+ {
+ return error_to_file_error(errno);
+ }
+
+ if (actual != NULL )
+ {
+ *actual = result;
+ }
+
+ return FILERR_NONE;
+}
+
+file_error sdl_close_ptty(osd_file *file)
+{
+ close(file->handle);
+ osd_free(file);
+
+ return FILERR_NONE;
+}
+
+file_error sdl_slave_name_ptty(osd_file *file , char *name , size_t name_len)
+{
+ const char *slave_name = ptsname(file->handle);
+
+ if (slave_name == NULL || strlen(slave_name) >= name_len) {
+ return FILERR_INVALID_ACCESS;
+ }
+
+ strcpy(name , slave_name);
+
+ return FILERR_NONE;
+}
+
+#else
+#include "sdlfile.h"
+
+const char *sdlfile_ptty_identifier = "";
+
+file_error sdl_open_ptty(const char *path, UINT32 openflags, osd_file **file, UINT64 *filesize)
+{
+ return FILERR_ACCESS_DENIED;
+}
+
+file_error sdl_read_ptty(osd_file *file, void *buffer, UINT64 offset, UINT32 count, UINT32 *actual)
+{
+ return FILERR_ACCESS_DENIED;
+}
+
+file_error sdl_write_ptty(osd_file *file, const void *buffer, UINT64 offset, UINT32 count, UINT32 *actual)
+{
+ return FILERR_ACCESS_DENIED;
+}
+
+file_error sdl_close_ptty(osd_file *file)
+{
+ return FILERR_ACCESS_DENIED;
+}
+
+file_error sdl_slave_name_ptty(osd_file *file)
+{
+ return FILERR_ACCESS_DENIED;
+}
+
+#endif