1 files changed, 433 insertions, 0 deletions

diff --git a/scripts/kconfig/libcurses/initscr.c b/scripts/kconfig/libcurses/initscr.c
new file mode 100644
index 000000000..a4208642a
--- /dev/null
+++ b/scripts/kconfig/libcurses/initscr.c
@@ -0,0 +1,433 @@
+/* PDCurses */
+
+#include "curspriv.h"
+
+/*man-start**************************************************************
+
+initscr
+-------
+
+### Synopsis
+
+    WINDOW *initscr(void);
+    WINDOW *Xinitscr(int argc, char **argv);
+    int endwin(void);
+    bool isendwin(void);
+    SCREEN *newterm(const char *type, FILE *outfd, FILE *infd);
+    SCREEN *set_term(SCREEN *new);
+    void delscreen(SCREEN *sp);
+
+    int resize_term(int nlines, int ncols);
+    bool is_termresized(void);
+    const char *curses_version(void);
+    void PDC_get_version(PDC_VERSION *ver);
+
+    int set_tabsize(int tabsize);
+
+### Description
+
+   initscr() should be the first curses routine called. It will
+   initialize all curses data structures, and arrange that the first
+   call to refresh() will clear the screen. In case of error, initscr()
+   will write a message to standard error and end the program.
+
+   endwin() should be called before exiting or escaping from curses mode
+   temporarily. It will restore tty modes, move the cursor to the lower
+   left corner of the screen and reset the terminal into the proper
+   non-visual mode. To resume curses after a temporary escape, call
+   refresh() or doupdate().
+
+   isendwin() returns TRUE if endwin() has been called without a
+   subsequent refresh, unless SP is NULL.
+
+   In some implementations of curses, newterm() allows the use of
+   multiple terminals. Here, it's just an alternative interface for
+   initscr(). It always returns SP, or NULL.
+
+   delscreen() frees the memory allocated by newterm() or initscr(),
+   since it's not freed by endwin(). This function is usually not
+   needed. In PDCurses, the parameter must be the value of SP, and
+   delscreen() sets SP to NULL.
+
+   set_term() does nothing meaningful in PDCurses, but is included for
+   compatibility with other curses implementations.
+
+   resize_term() is effectively two functions: When called with nonzero
+   values for nlines and ncols, it attempts to resize the screen to the
+   given size. When called with (0, 0), it merely adjusts the internal
+   structures to match the current size after the screen is resized by
+   the user. On the currently supported platforms, SDL, Windows console,
+   and X11 allow user resizing, while DOS, OS/2, SDL and Windows console
+   allow programmatic resizing. If you want to support user resizing,
+   you should check for getch() returning KEY_RESIZE, and/or call
+   is_termresized() at appropriate times; if either condition occurs,
+   call resize_term(0, 0). Then, with either user or programmatic
+   resizing, you'll have to resize any windows you've created, as
+   appropriate; resize_term() only handles stdscr and curscr.
+
+   is_termresized() returns TRUE if the curses screen has been resized
+   by the user, and a call to resize_term() is needed. Checking for
+   KEY_RESIZE is generally preferable, unless you're not handling the
+   keyboard.
+
+   curses_version() returns a string describing the version of PDCurses.
+
+   PDC_get_version() fills a PDC_VERSION structure provided by the user
+   with more detailed version info (see curses.h).
+
+   set_tabsize() sets the tab interval, stored in TABSIZE.
+
+### Return Value
+
+   All functions return NULL on error, except endwin(), which always
+   returns OK, and resize_term(), which returns either OK or ERR.
+
+### Portability
+
+   Function              | X/Open | ncurses | NetBSD
+   :---------------------|:------:|:-------:|:------:
+   initscr               |    Y   |    Y    |   Y
+   endwin                |    Y   |    Y    |   Y
+   isendwin              |    Y   |    Y    |   Y
+   newterm               |    Y   |    Y    |   Y
+   set_term              |    Y   |    Y    |   Y
+   delscreen             |    Y   |    Y    |   Y
+   resize_term           |    -   |    Y    |   Y
+   set_tabsize           |    -   |    Y    |   Y
+   curses_version        |    -   |    Y    |   -
+   is_termresized        |    -   |    -    |   -
+
+**man-end****************************************************************/
+
+#include <stdlib.h>
+
+char ttytype[128];
+
+const char *_curses_notice = "PDCurses " PDC_VERDOT " - " __DATE__;
+
+SCREEN *SP = (SCREEN*)NULL;           /* curses variables */
+WINDOW *curscr = (WINDOW *)NULL;      /* the current screen image */
+WINDOW *stdscr = (WINDOW *)NULL;      /* the default screen window */
+
+int LINES = 0;                        /* current terminal height */
+int COLS = 0;                         /* current terminal width */
+int TABSIZE = 8;
+
+MOUSE_STATUS Mouse_status;
+
+extern RIPPEDOFFLINE linesripped[5];
+extern char linesrippedoff;
+
+WINDOW *initscr(void)
+{
+    int i;
+
+    PDC_LOG(("initscr() - called\n"));
+
+    if (SP && SP->alive)
+        return NULL;
+
+    SP = calloc(1, sizeof(SCREEN));
+    if (!SP)
+        return NULL;
+
+    if (PDC_scr_open() == ERR)
+    {
+        fprintf(stderr, "initscr(): Unable to create SP\n");
+        exit(8);
+    }
+
+    SP->autocr = TRUE;       /* cr -> lf by default */
+    SP->raw_out = FALSE;     /* tty I/O modes */
+    SP->raw_inp = FALSE;     /* tty I/O modes */
+    SP->cbreak = TRUE;
+    SP->key_modifiers = 0L;
+    SP->return_key_modifiers = FALSE;
+    SP->echo = TRUE;
+    SP->visibility = 1;
+    SP->resized = FALSE;
+    SP->_trap_mbe = 0L;
+    SP->linesrippedoff = 0;
+    SP->linesrippedoffontop = 0;
+    SP->delaytenths = 0;
+    SP->line_color = -1;
+    SP->lastscr = (WINDOW *)NULL;
+    SP->dbfp = NULL;
+    SP->color_started = FALSE;
+    SP->dirty = FALSE;
+    SP->sel_start = -1;
+    SP->sel_end = -1;
+
+    SP->orig_cursor = PDC_get_cursor_mode();
+
+    LINES = SP->lines = PDC_get_rows();
+    COLS = SP->cols = PDC_get_columns();
+
+    if (LINES < 2 || COLS < 2)
+    {
+        fprintf(stderr, "initscr(): LINES=%d COLS=%d: too small.\n",
+                LINES, COLS);
+        exit(4);
+    }
+
+    curscr = newwin(LINES, COLS, 0, 0);
+    if (!curscr)
+    {
+        fprintf(stderr, "initscr(): Unable to create curscr.\n");
+        exit(2);
+    }
+
+    SP->lastscr = newwin(LINES, COLS, 0, 0);
+    if (!SP->lastscr)
+    {
+        fprintf(stderr, "initscr(): Unable to create SP->lastscr.\n");
+        exit(2);
+    }
+
+    wattrset(SP->lastscr, (chtype)(-1));
+    werase(SP->lastscr);
+
+    PDC_slk_initialize();
+    LINES -= SP->slklines;
+
+    /* We have to sort out ripped off lines here, and reduce the height
+       of stdscr by the number of lines ripped off */
+
+    for (i = 0; i < linesrippedoff; i++)
+    {
+        if (linesripped[i].line < 0)
+            (*linesripped[i].init)(newwin(1, COLS, LINES - 1, 0), COLS);
+        else
+            (*linesripped[i].init)(newwin(1, COLS,
+                                   SP->linesrippedoffontop++, 0), COLS);
+
+        SP->linesrippedoff++;
+        LINES--;
+    }
+
+    linesrippedoff = 0;
+
+    stdscr = newwin(LINES, COLS, SP->linesrippedoffontop, 0);
+    if (!stdscr)
+    {
+        fprintf(stderr, "initscr(): Unable to create stdscr.\n");
+        exit(1);
+    }
+
+    wclrtobot(stdscr);
+
+    /* If preserving the existing screen, don't allow a screen clear */
+
+    if (SP->_preserve)
+    {
+        untouchwin(curscr);
+        untouchwin(stdscr);
+        stdscr->_clear = FALSE;
+        curscr->_clear = FALSE;
+    }
+    else
+        curscr->_clear = TRUE;
+
+    SP->atrtab = calloc(PDC_COLOR_PAIRS, sizeof(PDC_PAIR));
+    if (!SP->atrtab)
+        return NULL;
+    PDC_init_atrtab();  /* set up default colors */
+
+    MOUSE_X_POS = MOUSE_Y_POS = -1;
+    BUTTON_STATUS(1) = BUTTON_RELEASED;
+    BUTTON_STATUS(2) = BUTTON_RELEASED;
+    BUTTON_STATUS(3) = BUTTON_RELEASED;
+    Mouse_status.changes = 0;
+
+    SP->alive = TRUE;
+
+    def_shell_mode();
+
+    sprintf(ttytype, "pdcurses|PDCurses for %s", PDC_sysname());
+
+    SP->c_buffer = malloc(_INBUFSIZ * sizeof(int));
+    if (!SP->c_buffer)
+        return NULL;
+    SP->c_pindex = 0;
+    SP->c_gindex = 1;
+
+    SP->c_ungch = malloc(NUNGETCH * sizeof(int));
+    if (!SP->c_ungch)
+        return NULL;
+    SP->c_ungind = 0;
+    SP->c_ungmax = NUNGETCH;
+
+    return stdscr;
+}
+
+#ifdef XCURSES
+WINDOW *Xinitscr(int argc, char **argv)
+{
+    PDC_LOG(("Xinitscr() - called\n"));
+
+    PDC_set_args(argc, argv);
+    return initscr();
+}
+#endif
+
+int endwin(void)
+{
+    PDC_LOG(("endwin() - called\n"));
+
+    /* Allow temporary exit from curses using endwin() */
+
+    def_prog_mode();
+    PDC_scr_close();
+
+    SP->alive = FALSE;
+
+    return OK;
+}
+
+bool isendwin(void)
+{
+    PDC_LOG(("isendwin() - called\n"));
+
+    return SP ? !(SP->alive) : FALSE;
+}
+
+SCREEN *newterm(const char *type, FILE *outfd, FILE *infd)
+{
+    PDC_LOG(("newterm() - called\n"));
+
+    return initscr() ? SP : NULL;
+}
+
+SCREEN *set_term(SCREEN *new)
+{
+    PDC_LOG(("set_term() - called\n"));
+
+    /* We only support one screen */
+
+    return (new == SP) ? SP : NULL;
+}
+
+void delscreen(SCREEN *sp)
+{
+    PDC_LOG(("delscreen() - called\n"));
+
+    if (!SP || sp != SP)
+        return;
+
+    free(SP->c_ungch);
+    free(SP->c_buffer);
+    free(SP->atrtab);
+
+    PDC_slk_free();     /* free the soft label keys, if needed */
+
+    delwin(stdscr);
+    delwin(curscr);
+    delwin(SP->lastscr);
+    stdscr = (WINDOW *)NULL;
+    curscr = (WINDOW *)NULL;
+    SP->lastscr = (WINDOW *)NULL;
+
+    SP->alive = FALSE;
+
+    PDC_scr_free();
+
+    free(SP);
+    SP = (SCREEN *)NULL;
+}
+
+int resize_term(int nlines, int ncols)
+{
+    PDC_LOG(("resize_term() - called: nlines %d\n", nlines));
+
+    if (!stdscr || PDC_resize_screen(nlines, ncols) == ERR)
+        return ERR;
+
+    SP->resized = FALSE;
+
+    SP->lines = PDC_get_rows();
+    LINES = SP->lines - SP->linesrippedoff - SP->slklines;
+    SP->cols = COLS = PDC_get_columns();
+
+    if (SP->cursrow >= SP->lines)
+        SP->cursrow = SP->lines - 1;
+    if (SP->curscol >= SP->cols)
+        SP->curscol = SP->cols - 1;
+
+    if (wresize(curscr, SP->lines, SP->cols) == ERR ||
+        wresize(stdscr, LINES, COLS) == ERR ||
+        wresize(SP->lastscr, SP->lines, SP->cols) == ERR)
+        return ERR;
+
+    werase(SP->lastscr);
+    curscr->_clear = TRUE;
+
+    if (SP->slk_winptr)
+    {
+        if (wresize(SP->slk_winptr, SP->slklines, COLS) == ERR)
+            return ERR;
+
+        wmove(SP->slk_winptr, 0, 0);
+        wclrtobot(SP->slk_winptr);
+        PDC_slk_initialize();
+        slk_noutrefresh();
+    }
+
+    touchwin(stdscr);
+    wnoutrefresh(stdscr);
+
+    return OK;
+}
+
+bool is_termresized(void)
+{
+    PDC_LOG(("is_termresized() - called\n"));
+
+    return SP->resized;
+}
+
+const char *curses_version(void)
+{
+    return _curses_notice;
+}
+
+void PDC_get_version(PDC_VERSION *ver)
+{
+    if (!ver)
+        return;
+
+    ver->flags = 0
+#ifdef PDCDEBUG
+        | PDC_VFLAG_DEBUG
+#endif
+#ifdef PDC_WIDE
+        | PDC_VFLAG_WIDE
+#endif
+#ifdef PDC_FORCE_UTF8
+        | PDC_VFLAG_UTF8
+#endif
+#ifdef PDC_DLL_BUILD
+        | PDC_VFLAG_DLL
+#endif
+#ifdef PDC_RGB
+        | PDC_VFLAG_RGB
+#endif
+        ;
+
+    ver->build = PDC_BUILD;
+    ver->major = PDC_VER_MAJOR;
+    ver->minor = PDC_VER_MINOR;
+    ver->csize = sizeof(chtype);
+    ver->bsize = sizeof(bool);
+}
+
+int set_tabsize(int tabsize)
+{
+    PDC_LOG(("set_tabsize() - called: tabsize %d\n", tabsize));
+
+    if (tabsize < 1)
+        return ERR;
+
+    TABSIZE = tabsize;
+
+    return OK;
+}