mirror of
https://github.com/ipxe/ipxe
synced 2025-12-14 07:50:43 +03:00
e65afc4b10
The DHCP client code now implements only the mechanism of the DHCP and PXE Boot Server protocols. Boot Server Discovery can be initiated manually using the "pxebs" command. The menuing code is separated out into a user-level function on a par with boot_root_path(), and is entered in preference to a normal filename boot if the DHCP vendor class is "PXEClient" and the PXE boot menu option exists.
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
#include <stdio.h>
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#include <curses.h>
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#include <console.h>
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static void ansiscr_reset(struct _curses_screen *scr) __nonnull;
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static void ansiscr_movetoyx(struct _curses_screen *scr,
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unsigned int y, unsigned int x) __nonnull;
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static void ansiscr_putc(struct _curses_screen *scr, chtype c) __nonnull;
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unsigned short _COLS = 80;
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unsigned short _LINES = 24;
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static void ansiscr_reset ( struct _curses_screen *scr ) {
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/* Reset terminal attributes and clear screen */
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scr->attrs = 0;
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scr->curs_x = 0;
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scr->curs_y = 0;
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printf ( "\033[0m" );
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}
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static void ansiscr_movetoyx ( struct _curses_screen *scr,
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unsigned int y, unsigned int x ) {
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if ( ( x != scr->curs_x ) || ( y != scr->curs_y ) ) {
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/* ANSI escape sequence to update cursor position */
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printf ( "\033[%d;%dH", ( y + 1 ), ( x + 1 ) );
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scr->curs_x = x;
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scr->curs_y = y;
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}
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}
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static void ansiscr_putc ( struct _curses_screen *scr, chtype c ) {
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unsigned int character = ( c & A_CHARTEXT );
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attr_t attrs = ( c & ( A_ATTRIBUTES | A_COLOR ) );
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int bold = ( attrs & A_BOLD );
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attr_t cpair = PAIR_NUMBER ( attrs );
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short fcol;
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short bcol;
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/* Update attributes if changed */
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if ( attrs != scr->attrs ) {
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scr->attrs = attrs;
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pair_content ( cpair, &fcol, &bcol );
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/* ANSI escape sequence to update character attributes */
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printf ( "\033[0;%d;3%d;4%dm", ( bold ? 1 : 22 ), fcol, bcol );
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}
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/* Print the actual character */
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putchar ( character );
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/* Update expected cursor position */
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if ( ++(scr->curs_x) == _COLS ) {
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scr->curs_x = 0;
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++scr->curs_y;
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}
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}
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static int ansiscr_getc ( struct _curses_screen *scr __unused ) {
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return getchar();
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}
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static bool ansiscr_peek ( struct _curses_screen *scr __unused ) {
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return iskey();
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}
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SCREEN _ansi_screen = {
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.init = ansiscr_reset,
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.exit = ansiscr_reset,
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.movetoyx = ansiscr_movetoyx,
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.putc = ansiscr_putc,
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.getc = ansiscr_getc,
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.peek = ansiscr_peek,
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};
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