libpayload: Rename PDCurses-3.4 to PDCurses

Change-Id: If881ec130833c7e7e62caa3d31e350a531f5bc8e
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/12398
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

payloads/libpayload/curses/PDCurses/sdl1/pdcclip.c

@@ -0,0 +1,128 @@
+/* Public Domain Curses */
+
+#include "pdcsdl.h"
+
+RCSID("$Id: pdcclip.c,v 1.6 2008/07/14 04:24:52 wmcbrine Exp $")
+
+#include <stdlib.h>
+
+/*man-start**************************************************************
+
+  Name:                                                         clipboard
+
+  Synopsis:
+        int PDC_getclipboard(char **contents, long *length);
+        int PDC_setclipboard(const char *contents, long length);
+        int PDC_freeclipboard(char *contents);
+        int PDC_clearclipboard(void);
+
+  Description:
+        PDC_getclipboard() gets the textual contents of the system's
+        clipboard. This function returns the contents of the clipboard
+        in the contents argument. It is the responsibilitiy of the
+        caller to free the memory returned, via PDC_freeclipboard().
+        The length of the clipboard contents is returned in the length
+        argument.
+
+        PDC_setclipboard copies the supplied text into the system's
+        clipboard, emptying the clipboard prior to the copy.
+
+        PDC_clearclipboard() clears the internal clipboard.
+
+  Return Values:
+        indicator of success/failure of call.
+        PDC_CLIP_SUCCESS        the call was successful
+        PDC_CLIP_MEMORY_ERROR   unable to allocate sufficient memory for
+                                the clipboard contents
+        PDC_CLIP_EMPTY          the clipboard contains no text
+        PDC_CLIP_ACCESS_ERROR   no clipboard support
+
+  Portability                                X/Open    BSD    SYS V
+        PDC_getclipboard                        -       -       -
+        PDC_setclipboard                        -       -       -
+        PDC_freeclipboard                       -       -       -
+        PDC_clearclipboard                      -       -       -
+
+**man-end****************************************************************/
+
+/* global clipboard contents, should be NULL if none set */
+
+static char *pdc_SDL_clipboard = NULL;
+
+int PDC_getclipboard(char **contents, long *length)
+{
+    int len;
+
+    PDC_LOG(("PDC_getclipboard() - called\n"));
+
+    if (!pdc_SDL_clipboard)
+        return PDC_CLIP_EMPTY;
+
+    len = strlen(pdc_SDL_clipboard);
+    if ((*contents = malloc(len + 1)) == NULL)
+        return PDC_CLIP_MEMORY_ERROR;
+
+    strcpy(*contents, pdc_SDL_clipboard);
+    *length = len;
+
+    return PDC_CLIP_SUCCESS;
+}
+
+int PDC_setclipboard(const char *contents, long length)
+{
+    PDC_LOG(("PDC_setclipboard() - called\n"));
+
+    if (pdc_SDL_clipboard)
+    {
+        free(pdc_SDL_clipboard);
+        pdc_SDL_clipboard = NULL;
+    }
+
+    if (contents)
+    {
+        if ((pdc_SDL_clipboard = malloc(length + 1)) == NULL)
+            return PDC_CLIP_MEMORY_ERROR;
+
+        strcpy(pdc_SDL_clipboard, contents);
+    }
+
+    return PDC_CLIP_SUCCESS;
+}
+
+int PDC_freeclipboard(char *contents)
+{
+    PDC_LOG(("PDC_freeclipboard() - called\n"));
+
+    /* should we also free empty the system clipboard? probably not */
+
+    if (contents)
+    {
+        /* NOTE: We free the memory, but we can not set caller's pointer
+           to NULL, so if caller calls again then will try to access
+           free'd memory.  We 1st overwrite memory with a string so if
+           caller tries to use free memory they won't get what they
+           expect & hopefully notice. */
+
+        /* memset(contents, 0xFD, strlen(contents)); */
+
+        if (strlen(contents) >= strlen("PDCURSES"))
+            strcpy(contents, "PDCURSES");
+
+        free(contents);
+    }
+
+    return PDC_CLIP_SUCCESS;
+}
+
+int PDC_clearclipboard(void)
+{
+    PDC_LOG(("PDC_clearclipboard() - called\n"));
+
+    if (pdc_SDL_clipboard)
+    {
+        free(pdc_SDL_clipboard);
+        pdc_SDL_clipboard = NULL;
+    }
+
+    return PDC_CLIP_SUCCESS;
+}