wok annotate busybox/stuff/busybox-1.22-fbvnc.u @ rev 17517

lxqt-appswitcher: force build
author Pascal Bellard <pascal.bellard@slitaz.org>
date Thu Jan 15 12:00:50 2015 +0100 (2015-01-15)
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pascal@17271 1 text data bss dec hex filename
pascal@17271 2 3118 0 0 3118 c2e util-linux/fbvnc.o
pascal@17271 3 --- /dev/null
pascal@17271 4 +++ busybox/util-linux/fbvnc.c
pascal@17271 5 @@ -0,0 +1,551 @@
pascal@17271 6 +/* vi: set sw=4 ts=4: */
pascal@17271 7 +/*
pascal@17271 8 + * A small linux framebuffer VNC viewer
pascal@17271 9 + *
pascal@17271 10 + * pascal.bellard@ads-lu.com
pascal@17271 11 + *
pascal@17271 12 + * Based on Ali Gholami Rudi's fbvnc.c
pascal@17271 13 + * http://repo.or.cz/w/fbvnc.git
pascal@17271 14 + *
pascal@17271 15 + * Licensed under GPLv2 or later, see file LICENSE in this source tree.
pascal@17271 16 + */
pascal@17271 17 +
pascal@17271 18 +//applet:IF_FBVNC(APPLET(fbvnc, BB_DIR_BIN, BB_SUID_DROP))
pascal@17271 19 +
pascal@17271 20 +//kbuild:lib-$(CONFIG_FBVNC) += fbvnc.o
pascal@17271 21 +
pascal@17271 22 +//config:config FBVNC
pascal@17271 23 +//config: bool "fbvnc"
pascal@17271 24 +//config: default n
pascal@17271 25 +//config: depends on PLATFORM_LINUX
pascal@17271 26 +//config: help
pascal@17271 27 +//config: A linux framebuffer VNC viewer.
pascal@17271 28 +
pascal@17271 29 +//usage:#define fbvnc_trivial_usage
pascal@17271 30 +//usage: "[VNC_SERVER] [PORT]"
pascal@17271 31 +//usage:#define fbvnc_full_usage "\n\n"
pascal@17271 32 +//usage: "A linux framebuffer VNC viewer."
pascal@17271 33 +//usage: "\nTo exit, move mouse to upper left corner and press ESC."
pascal@17271 34 +
pascal@17271 35 +#include "libbb.h"
pascal@17271 36 +#include "vnc.h"
pascal@17271 37 +
pascal@17271 38 +/* Stuff stolen from the kernel's fb.h */
pascal@17271 39 +#define FB_ACTIVATE_ALL 64
pascal@17271 40 +enum {
pascal@17271 41 + FBIOGET_VSCREENINFO = 0x4600,
pascal@17271 42 + FBIOPUT_VSCREENINFO = 0x4601,
pascal@17271 43 + FBIOGET_FSCREENINFO = 0x4602,
pascal@17271 44 + FBIOGETCMAP = 0x4604,
pascal@17271 45 + FBIOPUTCMAP = 0x4605
pascal@17271 46 +};
pascal@17271 47 +
pascal@17271 48 +struct fb_bitfield {
pascal@17271 49 + uint32_t offset; /* beginning of bitfield */
pascal@17271 50 + uint32_t length; /* length of bitfield */
pascal@17271 51 + uint32_t msb_right; /* !=0: Most significant bit is right */
pascal@17271 52 +};
pascal@17271 53 +struct fb_var_screeninfo {
pascal@17271 54 + uint32_t xres; /* visible resolution */
pascal@17271 55 + uint32_t yres;
pascal@17271 56 + uint32_t xres_virtual; /* virtual resolution */
pascal@17271 57 + uint32_t yres_virtual;
pascal@17271 58 + uint32_t xoffset; /* offset from virtual to visible */
pascal@17271 59 + uint32_t yoffset; /* resolution */
pascal@17271 60 +
pascal@17271 61 + uint32_t bits_per_pixel;
pascal@17271 62 + uint32_t grayscale; /* !=0 Graylevels instead of colors */
pascal@17271 63 +
pascal@17271 64 + struct fb_bitfield red; /* bitfield in fb mem if true color, */
pascal@17271 65 + struct fb_bitfield green; /* else only length is significant */
pascal@17271 66 + struct fb_bitfield blue;
pascal@17271 67 + struct fb_bitfield transp; /* transparency */
pascal@17271 68 +
pascal@17271 69 + uint32_t nonstd; /* !=0 Non standard pixel format */
pascal@17271 70 +
pascal@17271 71 + uint32_t activate; /* see FB_ACTIVATE_x */
pascal@17271 72 +
pascal@17271 73 + uint32_t height; /* height of picture in mm */
pascal@17271 74 + uint32_t width; /* width of picture in mm */
pascal@17271 75 +
pascal@17271 76 + uint32_t accel_flags; /* acceleration flags (hints) */
pascal@17271 77 +
pascal@17271 78 + /* Timing: All values in pixclocks, except pixclock (of course) */
pascal@17271 79 + uint32_t pixclock; /* pixel clock in ps (pico seconds) */
pascal@17271 80 + uint32_t left_margin; /* time from sync to picture */
pascal@17271 81 + uint32_t right_margin; /* time from picture to sync */
pascal@17271 82 + uint32_t upper_margin; /* time from sync to picture */
pascal@17271 83 + uint32_t lower_margin;
pascal@17271 84 + uint32_t hsync_len; /* length of horizontal sync */
pascal@17271 85 + uint32_t vsync_len; /* length of vertical sync */
pascal@17271 86 + uint32_t sync; /* see FB_SYNC_x */
pascal@17271 87 + uint32_t vmode; /* see FB_VMODE_x */
pascal@17271 88 + uint32_t reserved[6]; /* Reserved for future compatibility */
pascal@17271 89 +};
pascal@17271 90 +
pascal@17271 91 +#define DEFAULTFBDEV FB_0
pascal@17271 92 +
pascal@17271 93 +struct fb_fix_screeninfo {
pascal@17271 94 + char id[16]; /* identification string eg "TT Builtin" */
pascal@17271 95 + unsigned long smem_start; /* Start of frame buffer mem */
pascal@17271 96 + /* (physical address) */
pascal@17271 97 + uint32_t smem_len; /* Length of frame buffer mem */
pascal@17271 98 + uint32_t type; /* see FB_TYPE_* */
pascal@17271 99 + uint32_t type_aux; /* Interleave for interleaved Planes */
pascal@17271 100 + uint32_t visual; /* see FB_VISUAL_* */
pascal@17271 101 + uint16_t xpanstep; /* zero if no hardware panning */
pascal@17271 102 + uint16_t ypanstep; /* zero if no hardware panning */
pascal@17271 103 + uint16_t ywrapstep; /* zero if no hardware ywrap */
pascal@17271 104 + uint32_t line_length; /* length of a line in bytes */
pascal@17271 105 + unsigned long mmio_start; /* Start of Memory Mapped I/O */
pascal@17271 106 + /* (physical address) */
pascal@17271 107 + uint32_t mmio_len; /* Length of Memory Mapped I/O */
pascal@17271 108 + uint32_t accel; /* Indicate to driver which */
pascal@17271 109 + /* specific chip/card we have */
pascal@17271 110 + uint16_t reserved[3]; /* Reserved for future compatibility */
pascal@17271 111 +};
pascal@17271 112 +
pascal@17271 113 +struct fb_cmap {
pascal@17271 114 + uint32_t start; /* First entry */
pascal@17271 115 + uint32_t len; /* Number of entries */
pascal@17271 116 + uint16_t *red; /* Red values */
pascal@17271 117 + uint16_t *green;
pascal@17271 118 + uint16_t *blue;
pascal@17271 119 + uint16_t *transp; /* transparency, can be NULL */
pascal@17271 120 +};
pascal@17271 121 +
pascal@17271 122 +#define FB_VISUAL_TRUECOLOR 2 /* True color */
pascal@17271 123 +
pascal@17271 124 +#define COLORLEVELS (1 << 8)
pascal@17271 125 +
pascal@17271 126 +struct scroll_data {
pascal@17271 127 + int size;
pascal@17271 128 + int srv_size;
pascal@17271 129 + int offset;
pascal@17271 130 + int pos;
pascal@17271 131 +};
pascal@17271 132 +
pascal@17271 133 +struct globals {
pascal@17271 134 + struct termios term_orig;
pascal@17271 135 + struct pollfd ufds[3];
pascal@17271 136 +#define kbd_fd ufds[0].fd
pascal@17271 137 +#define vnc_fd ufds[1].fd
pascal@17271 138 +#define rat_fd ufds[2].fd
pascal@17271 139 + struct scroll_data scroll[2];
pascal@17271 140 +#define cols scroll[0].size
pascal@17271 141 +#define srv_cols scroll[0].srv_size
pascal@17271 142 +#define oc scroll[0].offset
pascal@17271 143 +#define mc scroll[0].pos
pascal@17271 144 +#define rows scroll[1].size
pascal@17271 145 +#define srv_rows scroll[1].srv_size
pascal@17271 146 +#define or scroll[1].offset
pascal@17271 147 +#define mr scroll[1].pos
pascal@17271 148 + int fb_fd;
pascal@17271 149 + void *fb_ptr;
pascal@17271 150 + int bpp;
pascal@17271 151 + int nr, ng, nb;
pascal@17271 152 + struct fb_var_screeninfo vinfo;
pascal@17271 153 + struct fb_fix_screeninfo finfo;
pascal@17271 154 + unsigned short red[COLORLEVELS], green[COLORLEVELS], blue[COLORLEVELS];
pascal@17271 155 +};
pascal@17271 156 +
pascal@17271 157 +#define G (*ptr_to_globals)
pascal@17271 158 +#define INIT_G() do { \
pascal@17271 159 + SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
pascal@17271 160 +} while (0)
pascal@17271 161 +
pascal@17271 162 +static int fb_len(void)
pascal@17271 163 +{
pascal@17271 164 + return G.finfo.line_length * G.vinfo.yres_virtual;
pascal@17271 165 +}
pascal@17271 166 +
pascal@17271 167 +static void fb_ioctl_cmap(int fct, struct fb_cmap *cmap)
pascal@17271 168 +{
pascal@17271 169 + if (G.finfo.visual == FB_VISUAL_TRUECOLOR)
pascal@17271 170 + return;
pascal@17271 171 + cmap->start = 0;
pascal@17271 172 + cmap->len = MAX(G.nr, MAX(G.ng, G.nb));
pascal@17271 173 + cmap->transp = NULL;
pascal@17271 174 + xioctl(G.fb_fd, fct, cmap);
pascal@17271 175 +}
pascal@17271 176 +
pascal@17271 177 +static void fb_cmap_save(int save)
pascal@17271 178 +{
pascal@17271 179 + struct fb_cmap cmap;
pascal@17271 180 +
pascal@17271 181 + cmap.red = G.red;
pascal@17271 182 + cmap.green = G.green;
pascal@17271 183 + cmap.blue = G.blue;
pascal@17271 184 + fb_ioctl_cmap(save ? FBIOGETCMAP : FBIOPUTCMAP, &cmap);
pascal@17271 185 +}
pascal@17271 186 +
pascal@17271 187 +static void fb_build_cmap(unsigned short *color, int n)
pascal@17271 188 +{
pascal@17271 189 + int i, inc = 65535 / (n - 1);
pascal@17271 190 +
pascal@17271 191 + for (i = 0; n--; i += inc)
pascal@17271 192 + *color++ = i;
pascal@17271 193 +}
pascal@17271 194 +
pascal@17271 195 +static void fb_cmap(void)
pascal@17271 196 +{
pascal@17271 197 + unsigned short red[COLORLEVELS], green[COLORLEVELS], blue[COLORLEVELS];
pascal@17271 198 + struct fb_cmap cmap;
pascal@17271 199 +
pascal@17271 200 + fb_build_cmap(cmap.red = red, G.nr);
pascal@17271 201 + fb_build_cmap(cmap.green = green, G.ng);
pascal@17271 202 + fb_build_cmap(cmap.blue = blue, G.nb);
pascal@17271 203 + fb_ioctl_cmap(FBIOPUTCMAP, &cmap);
pascal@17271 204 +}
pascal@17271 205 +
pascal@17271 206 +static void fb_init(void)
pascal@17271 207 +{
pascal@17271 208 + G.fb_fd = xopen(DEFAULTFBDEV, O_RDWR);
pascal@17271 209 + xioctl(G.fb_fd, FBIOGET_VSCREENINFO, &G.vinfo);
pascal@17271 210 + xioctl(G.fb_fd, FBIOGET_FSCREENINFO, &G.finfo);
pascal@17271 211 + close_on_exec_on(G.fb_fd);
pascal@17271 212 + G.fb_ptr = mmap(NULL, fb_len(), PROT_READ | PROT_WRITE, MAP_SHARED, G.fb_fd, 0);
pascal@17271 213 + if (G.fb_ptr == MAP_FAILED)
pascal@17271 214 + bb_perror_msg_and_die("mmap");
pascal@17271 215 + G.bpp = (G.vinfo.bits_per_pixel + 7) >> 3;
pascal@17271 216 + G.nr = 1 << G.vinfo.red.length;
pascal@17271 217 + G.nb = 1 << G.vinfo.blue.length;
pascal@17271 218 + G.ng = 1 << G.vinfo.green.length;
pascal@17271 219 + fb_cmap_save(1);
pascal@17271 220 + fb_cmap();
pascal@17271 221 +}
pascal@17271 222 +
pascal@17271 223 +static void fb_free(void)
pascal@17271 224 +{
pascal@17271 225 + fb_cmap_save(0);
pascal@17271 226 + munmap(G.fb_ptr, fb_len());
pascal@17271 227 + close(G.fb_fd);
pascal@17271 228 +}
pascal@17271 229 +
pascal@17271 230 +#define fb_rows vinfo.yres
pascal@17271 231 +#define fb_cols vinfo.xres
pascal@17271 232 +
pascal@17271 233 +static void fb_set(int r, int c, void *mem, int len)
pascal@17271 234 +{
pascal@17271 235 + memcpy(G.fb_ptr + (r + G.vinfo.yoffset) * G.finfo.line_length +
pascal@17271 236 + (c + G.vinfo.xoffset) * G.bpp, mem, len * G.bpp);
pascal@17271 237 +}
pascal@17271 238 +
pascal@17271 239 +#define line_buffer bb_common_bufsiz1
pascal@17271 240 +#define MAXPIX (sizeof(line_buffer)/sizeof(uint32_t))
pascal@17271 241 +
pascal@17271 242 +static void skip(int len)
pascal@17271 243 +{
pascal@17271 244 + int n;
pascal@17271 245 + while (len > 0 && (n = read(G.vnc_fd, line_buffer,
pascal@17271 246 + MIN(len, sizeof(line_buffer)))) > 0)
pascal@17271 247 + len -= n;
pascal@17271 248 +}
pascal@17271 249 +
pascal@17271 250 +static void vnc_init(void)
pascal@17271 251 +{
pascal@17271 252 + struct vnc_client_init clientinit;
pascal@17271 253 + struct vnc_server_init serverinit;
pascal@17271 254 + struct vnc_client_pixelfmt pixfmt_cmd;
pascal@17271 255 + int connstat = VNC_CONN_FAILED;
pascal@17271 256 +
pascal@17271 257 + write(G.vnc_fd, "RFB 003.003\n", 12);
pascal@17271 258 + skip(12);
pascal@17271 259 +
pascal@17271 260 + xread(G.vnc_fd, &connstat, sizeof(connstat));
pascal@17271 261 +
pascal@17271 262 + if (ntohl(connstat) != VNC_CONN_NOAUTH)
pascal@17271 263 + bb_perror_msg_and_die("vnc auth");
pascal@17271 264 +
pascal@17271 265 + clientinit.shared = 1;
pascal@17271 266 + write(G.vnc_fd, &clientinit, sizeof(clientinit));
pascal@17271 267 + read(G.vnc_fd, &serverinit, sizeof(serverinit));
pascal@17271 268 +
pascal@17271 269 + fb_init();
pascal@17271 270 + G.srv_cols = ntohs(serverinit.w);
pascal@17271 271 + G.srv_rows = ntohs(serverinit.h);
pascal@17271 272 + G.cols = MIN(G.srv_cols, G.fb_cols);
pascal@17271 273 + G.rows = MIN(G.srv_rows, G.fb_rows);
pascal@17271 274 + G.mr = G.rows / 2;
pascal@17271 275 + G.mc = G.cols / 2;
pascal@17271 276 +
pascal@17271 277 + skip(ntohl(serverinit.len));
pascal@17271 278 + pixfmt_cmd.type = VNC_CLIENT_PIXFMT;
pascal@17271 279 + pixfmt_cmd.format.bigendian = 0;
pascal@17271 280 + pixfmt_cmd.format.truecolor = 1;
pascal@17271 281 + pixfmt_cmd.format.bpp =
pascal@17271 282 + pixfmt_cmd.format.depth = G.bpp << 3;
pascal@17271 283 + pixfmt_cmd.format.rmax = htons(G.nr - 1);
pascal@17271 284 + pixfmt_cmd.format.gmax = htons(G.ng - 1);
pascal@17271 285 + pixfmt_cmd.format.bmax = htons(G.nb - 1);
pascal@17271 286 + pixfmt_cmd.format.rshl = G.vinfo.red.offset;
pascal@17271 287 + pixfmt_cmd.format.gshl = G.vinfo.green.offset;
pascal@17271 288 + pixfmt_cmd.format.bshl = G.vinfo.blue.offset;
pascal@17271 289 + write(G.vnc_fd, &pixfmt_cmd, sizeof(pixfmt_cmd));
pascal@17271 290 +}
pascal@17271 291 +
pascal@17271 292 +static void vnc_refresh(int inc)
pascal@17271 293 +{
pascal@17271 294 + struct vnc_client_fbup fbup_req;
pascal@17271 295 + fbup_req.type = VNC_CLIENT_FBUP;
pascal@17271 296 + fbup_req.inc = inc;
pascal@17271 297 + fbup_req.x = htons(G.oc);
pascal@17271 298 + fbup_req.y = htons(G.or);
pascal@17271 299 + fbup_req.w = htons(G.oc + G.cols);
pascal@17271 300 + fbup_req.h = htons(G.or + G.rows);
pascal@17271 301 + write(G.vnc_fd, &fbup_req, sizeof(fbup_req));
pascal@17271 302 +}
pascal@17271 303 +
pascal@17271 304 +static void cleanup(void)
pascal@17271 305 +{
pascal@17271 306 + const char *reset = "\x1b[?25h" "\x1b[2J\x1b[H";
pascal@17271 307 + fb_free();
pascal@17271 308 + tcsetattr_stdin_TCSANOW(&G.term_orig);
pascal@17271 309 + write(STDOUT_FILENO, reset, strlen(reset));
pascal@17271 310 + if (ENABLE_FEATURE_CLEAN_UP) {
pascal@17271 311 + close(G.vnc_fd);
pascal@17271 312 + close(G.rat_fd);
pascal@17271 313 + }
pascal@17271 314 +}
pascal@17271 315 +
pascal@17271 316 +static void killed(int code) NORETURN;
pascal@17271 317 +static void killed(int code)
pascal@17271 318 +{
pascal@17271 319 + cleanup();
pascal@17271 320 + if (code > EXIT_FAILURE)
pascal@17271 321 + kill_myself_with_sig(code);
pascal@17271 322 + exit(code);
pascal@17271 323 +}
pascal@17271 324 +
pascal@17271 325 +static void vnc_event(void)
pascal@17271 326 +{
pascal@17271 327 + struct vnc_rect uprect;
pascal@17271 328 + union {
pascal@17271 329 + struct vnc_server_fbup fbup;
pascal@17271 330 + struct vnc_server_cuttext cuttext;
pascal@17271 331 + struct vnc_server_colormap colormap;
pascal@17271 332 + } msg;
pascal@17271 333 + int n;
pascal@17271 334 +
pascal@17271 335 + switch (xread_char(G.vnc_fd)) {
pascal@17271 336 + case VNC_SERVER_FBUP:
pascal@17271 337 + xread(G.vnc_fd, &msg.fbup.pad, sizeof(msg.fbup) - 1);
pascal@17271 338 + n = ntohs(msg.fbup.n);
pascal@17271 339 + while (n--) {
pascal@17271 340 + int x, y, w, h, l, i;
pascal@17271 341 + xread(G.vnc_fd, &uprect, sizeof(uprect));
pascal@17271 342 + if (uprect.enc != 0)
pascal@17271 343 + killed(1);
pascal@17271 344 + i = 0;
pascal@17271 345 + x = ntohs(uprect.x) - G.oc;
pascal@17271 346 + y = ntohs(uprect.y) - G.or;
pascal@17271 347 + w = ntohs(uprect.w);
pascal@17271 348 + h = ntohs(uprect.h);
pascal@17271 349 + l = MIN(w, G.cols - x);
pascal@17271 350 + if (x < 0) {
pascal@17271 351 + l = MIN(w + x, G.cols);
pascal@17271 352 + i = -x;
pascal@17271 353 + x = 0;
pascal@17271 354 + }
pascal@17271 355 + for (; h--; y++) {
pascal@17271 356 + int a, b, c = i;
pascal@17271 357 + for (a = b = 0; w > b; b += a, c = 0) {
pascal@17271 358 + int len;
pascal@17271 359 + a = MIN(w - b, MAXPIX);
pascal@17271 360 + len = MIN(a, l - b) - c;
pascal@17271 361 + xread(G.vnc_fd, line_buffer, a * G.bpp);
pascal@17271 362 + if (y >= 0 && y < G.rows && len > 0)
pascal@17271 363 + fb_set(y, x + b,
pascal@17271 364 + line_buffer + (c * G.bpp),
pascal@17271 365 + len);
pascal@17271 366 + }
pascal@17271 367 + }
pascal@17271 368 + }
pascal@17271 369 + break;
pascal@17271 370 + case VNC_SERVER_BELL:
pascal@17271 371 + break;
pascal@17271 372 + case VNC_SERVER_CUTTEXT:
pascal@17271 373 + xread(G.vnc_fd, &msg.cuttext.pad1, sizeof(msg.cuttext) - 1);
pascal@17271 374 + skip(ntohl(msg.cuttext.len));
pascal@17271 375 + break;
pascal@17271 376 + case VNC_SERVER_COLORMAP:
pascal@17271 377 + xread(G.vnc_fd, &msg.colormap.pad, sizeof(msg.colormap) - 1);
pascal@17271 378 + skip(ntohs(msg.colormap.n) * 3 * 2);
pascal@17271 379 + break;
pascal@17271 380 + default:
pascal@17271 381 + killed(1);
pascal@17271 382 + }
pascal@17271 383 +}
pascal@17271 384 +
pascal@17271 385 +static int update_scroll(struct scroll_data *s)
pascal@17271 386 +{
pascal@17271 387 + int shift = s->size / 5;
pascal@17271 388 + int max = s->srv_size - s->size;
pascal@17271 389 + int status = 0;
pascal@17271 390 + if (s->pos < s->offset) {
pascal@17271 391 + if ((s->offset -= shift) < 0)
pascal@17271 392 + s->offset = 0;
pascal@17271 393 + }
pascal@17271 394 + else if (s->pos >= s->offset + s->size && s->offset < max) {
pascal@17271 395 + if ((s->offset += shift) > max)
pascal@17271 396 + s->offset = max;
pascal@17271 397 + }
pascal@17271 398 + else status++;
pascal@17271 399 + s->pos = MAX(s->offset, MIN(s->offset + s->size - 1, s->pos));
pascal@17271 400 + return status;
pascal@17271 401 +}
pascal@17271 402 +
pascal@17271 403 +static void rat_event(void)
pascal@17271 404 +{
pascal@17271 405 + signed char ie[3];
pascal@17271 406 + struct vnc_client_ratevent me = {VNC_CLIENT_RATEVENT};
pascal@17271 407 + int mask = 0;
pascal@17271 408 + int refresh;
pascal@17271 409 +
pascal@17271 410 + xread(G.rat_fd, &ie, sizeof(ie));
pascal@17271 411 + G.mc += ie[1];
pascal@17271 412 + G.mr -= ie[2];
pascal@17271 413 + refresh = 2 - update_scroll(&G.scroll[0]) - update_scroll(&G.scroll[1]);
pascal@17271 414 + if (ie[0] & 0x01)
pascal@17271 415 + mask |= VNC_BUTTON1_MASK;
pascal@17271 416 + if (ie[0] & 0x04)
pascal@17271 417 + mask |= VNC_BUTTON2_MASK;
pascal@17271 418 + if (ie[0] & 0x02)
pascal@17271 419 + mask |= VNC_BUTTON3_MASK;
pascal@17271 420 + me.y = htons(G.mr);
pascal@17271 421 + me.x = htons(G.mc);
pascal@17271 422 + me.mask = mask;
pascal@17271 423 + write(G.vnc_fd, &me, sizeof(me));
pascal@17271 424 + if (refresh)
pascal@17271 425 + vnc_refresh(0);
pascal@17271 426 +}
pascal@17271 427 +
pascal@17271 428 +static int press(int key, int down)
pascal@17271 429 +{
pascal@17271 430 + struct vnc_client_keyevent ke = {VNC_CLIENT_KEYEVENT};
pascal@17271 431 + ke.key = htonl(key);
pascal@17271 432 + ke.down = down;
pascal@17271 433 + return write(G.vnc_fd, &ke, sizeof(ke));
pascal@17271 434 +}
pascal@17271 435 +
pascal@17271 436 +static void kbd_event(void)
pascal@17271 437 +{
pascal@17271 438 + char key[1024];
pascal@17271 439 + int i, nr;
pascal@17271 440 +
pascal@17271 441 + if ((nr = read(0, key, sizeof(key))) <= 0 )
pascal@17271 442 + killed(1);
pascal@17271 443 + for (i = 0; i < nr; i++) {
pascal@17271 444 + int k = -1;
pascal@17271 445 + int mod[4];
pascal@17271 446 + int nmod = 0;
pascal@17271 447 + switch (key[i]) {
pascal@17271 448 + case 0x08:
pascal@17271 449 + case 0x7f:
pascal@17271 450 + k = 0xff08;
pascal@17271 451 + break;
pascal@17271 452 + case 0x09:
pascal@17271 453 + k = 0xff09;
pascal@17271 454 + break;
pascal@17271 455 + case 0x1b:
pascal@17271 456 + if (G.oc + G.mc + G.or + G.mr == 0)
pascal@17271 457 + killed(0);
pascal@17271 458 + if (i + 2 < nr && key[i + 1] == '[') {
pascal@17271 459 + if (key[i + 2] == 'A')
pascal@17271 460 + k = 0xff52;
pascal@17271 461 + if (key[i + 2] == 'B')
pascal@17271 462 + k = 0xff54;
pascal@17271 463 + if (key[i + 2] == 'C')
pascal@17271 464 + k = 0xff53;
pascal@17271 465 + if (key[i + 2] == 'D')
pascal@17271 466 + k = 0xff51;
pascal@17271 467 + if (key[i + 2] == 'H')
pascal@17271 468 + k = 0xff50;
pascal@17271 469 + if (k > 0) {
pascal@17271 470 + i += 2;
pascal@17271 471 + break;
pascal@17271 472 + }
pascal@17271 473 + }
pascal@17271 474 + k = 0xff1b;
pascal@17271 475 + if (i + 1 < nr) {
pascal@17271 476 + mod[nmod++] = 0xffe9;
pascal@17271 477 + k = key[++i];
pascal@17271 478 + }
pascal@17271 479 + break;
pascal@17271 480 + case 0x0d:
pascal@17271 481 + k = 0xff0d;
pascal@17271 482 + break;
pascal@17271 483 + case 0x0c: /* ^L: redraw */
pascal@17271 484 + vnc_refresh(0);
pascal@17271 485 + default:
pascal@17271 486 + k = (unsigned char) key[i];
pascal@17271 487 + }
pascal@17271 488 + if ((k >= 'A' && k <= 'Z') || strchr(":\"<>?{}|+_()*&^%$#@!~", k))
pascal@17271 489 + mod[nmod++] = 0xffe1;
pascal@17271 490 + if (k >= 1 && k <= 26) {
pascal@17271 491 + k += 'a' - 1;
pascal@17271 492 + mod[nmod++] = 0xffe3;
pascal@17271 493 + }
pascal@17271 494 + if (k > 0) {
pascal@17271 495 + int j;
pascal@17271 496 + mod[nmod] = k;
pascal@17271 497 + for (j = 0; j <= nmod; j++)
pascal@17271 498 + press(mod[j], 1);
pascal@17271 499 + press(k, 0);
pascal@17271 500 + for (j = 0; j < nmod; j++)
pascal@17271 501 + press(mod[j], 0);
pascal@17271 502 + }
pascal@17271 503 + }
pascal@17271 504 +}
pascal@17271 505 +
pascal@17271 506 +static void term_setup(void)
pascal@17271 507 +{
pascal@17271 508 + struct termios termios;
pascal@17271 509 + const char *init = "\x1b[?25l" "\x1b[2J\x1b[H" "** fbvnc **";
pascal@17271 510 +
pascal@17271 511 + write(STDOUT_FILENO, init, strlen(init));
pascal@17271 512 + tcgetattr (STDIN_FILENO, &termios);
pascal@17271 513 + G.term_orig = termios;
pascal@17271 514 + cfmakeraw(&termios);
pascal@17271 515 + tcsetattr_stdin_TCSANOW(&termios);
pascal@17271 516 +}
pascal@17271 517 +
pascal@17271 518 +int fbvnc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
pascal@17271 519 +int fbvnc_main(int argc, char **argv)
pascal@17271 520 +{
pascal@17271 521 + char *host = (char *) "127.0.0.1";
pascal@17271 522 + int port, pending = 0;
pascal@17271 523 +
pascal@17271 524 + INIT_G();
pascal@17271 525 + if (argc >= 2)
pascal@17271 526 + host = argv[1];
pascal@17271 527 + port = bb_lookup_port((argc >= 3) ? argv[2] : "vnc", "tcp", 5900);
pascal@17271 528 + G.vnc_fd = create_and_connect_stream_or_die(host, port);
pascal@17271 529 + vnc_init();
pascal@17271 530 + G.rat_fd = open("/dev/input/mice", O_RDONLY);
pascal@17271 531 + term_setup();
pascal@17271 532 + atexit(cleanup);
pascal@17271 533 + bb_signals(BB_FATAL_SIGS, killed);
pascal@17271 534 +
pascal@17271 535 + G.ufds[0].events =
pascal@17271 536 + G.ufds[1].events =
pascal@17271 537 + G.ufds[2].events = POLLIN;
pascal@17271 538 + vnc_refresh(0);
pascal@17271 539 + while (1) {
pascal@17271 540 + int status = poll(G.ufds, 3, 500);
pascal@17271 541 + if (status == -1 && errno != EINTR)
pascal@17271 542 + killed(1);
pascal@17271 543 + if (!status)
pascal@17271 544 + continue;
pascal@17271 545 + if (G.ufds[0].revents & POLLIN)
pascal@17271 546 + kbd_event();
pascal@17271 547 + if (G.ufds[1].revents & POLLIN) {
pascal@17271 548 + vnc_event();
pascal@17271 549 + pending = 0;
pascal@17271 550 + }
pascal@17271 551 + if (G.ufds[2].revents & POLLIN)
pascal@17271 552 + rat_event();
pascal@17271 553 + if (!pending++)
pascal@17271 554 + vnc_refresh(1);
pascal@17271 555 + }
pascal@17271 556 +}
pascal@17271 557 --- /dev/null
pascal@17271 558 +++ busybox/util-linux/vnc.h
pascal@17271 559 @@ -0,0 +1,122 @@
pascal@17271 560 +#define VNC_CONN_FAILED 0
pascal@17271 561 +#define VNC_CONN_NOAUTH 1
pascal@17271 562 +#define VNC_CONN_AUTH 2
pascal@17271 563 +
pascal@17271 564 +#define VNC_AUTH_OK 0
pascal@17271 565 +#define VNC_AUTH_FAILED 1
pascal@17271 566 +#define VNC_AUTH_TOOMANY 2
pascal@17271 567 +
pascal@17271 568 +#define VNC_SERVER_FBUP 0
pascal@17271 569 +#define VNC_SERVER_COLORMAP 1
pascal@17271 570 +#define VNC_SERVER_BELL 2
pascal@17271 571 +#define VNC_SERVER_CUTTEXT 3
pascal@17271 572 +
pascal@17271 573 +#define VNC_CLIENT_PIXFMT 0
pascal@17271 574 +#define VNC_CLIENT_COLORMAP 1
pascal@17271 575 +#define VNC_CLIENT_SETENC 2
pascal@17271 576 +#define VNC_CLIENT_FBUP 3
pascal@17271 577 +#define VNC_CLIENT_KEYEVENT 4
pascal@17271 578 +#define VNC_CLIENT_RATEVENT 5
pascal@17271 579 +#define VNC_CLIENT_CUTTEXT 6
pascal@17271 580 +
pascal@17271 581 +#define VNC_ENC_RAW 0
pascal@17271 582 +#define VNC_ENC_COPYRECT 1
pascal@17271 583 +#define VNC_ENC_RRE 2
pascal@17271 584 +#define VNC_ENC_CORRE 4
pascal@17271 585 +#define VNC_ENC_HEXTILE 5
pascal@17271 586 +
pascal@17271 587 +#define VNC_BUTTON1_MASK 0x1
pascal@17271 588 +#define VNC_BUTTON2_MASK 0x2
pascal@17271 589 +#define VNC_BUTTON3_MASK 0x4
pascal@17271 590 +
pascal@17271 591 +typedef unsigned char u8;
pascal@17271 592 +typedef unsigned short u16;
pascal@17271 593 +typedef unsigned int u32;
pascal@17271 594 +
pascal@17271 595 +struct vnc_pixelfmt {
pascal@17271 596 + u8 bpp;
pascal@17271 597 + u8 depth;
pascal@17271 598 + u8 bigendian;
pascal@17271 599 + u8 truecolor;
pascal@17271 600 + u16 rmax;
pascal@17271 601 + u16 gmax;
pascal@17271 602 + u16 bmax;
pascal@17271 603 + u8 rshl;
pascal@17271 604 + u8 gshl;
pascal@17271 605 + u8 bshl;
pascal@17271 606 +
pascal@17271 607 + u8 pad1;
pascal@17271 608 + u16 pad2;
pascal@17271 609 +};
pascal@17271 610 +
pascal@17271 611 +struct vnc_client_init {
pascal@17271 612 + u8 shared;
pascal@17271 613 +};
pascal@17271 614 +
pascal@17271 615 +struct vnc_server_init {
pascal@17271 616 + u16 w;
pascal@17271 617 + u16 h;
pascal@17271 618 + struct vnc_pixelfmt fmt;
pascal@17271 619 + u32 len;
pascal@17271 620 + /* char name[len]; */
pascal@17271 621 +};
pascal@17271 622 +
pascal@17271 623 +struct vnc_rect {
pascal@17271 624 + u16 x, y;
pascal@17271 625 + u16 w, h;
pascal@17271 626 + u32 enc;
pascal@17271 627 + /* rect bytes */
pascal@17271 628 +};
pascal@17271 629 +
pascal@17271 630 +struct vnc_server_fbup {
pascal@17271 631 + u8 type;
pascal@17271 632 + u8 pad;
pascal@17271 633 + u16 n;
pascal@17271 634 + /* struct vnc_rect rects[n]; */
pascal@17271 635 +};
pascal@17271 636 +
pascal@17271 637 +struct vnc_server_cuttext {
pascal@17271 638 + u8 type;
pascal@17271 639 + u8 pad1;
pascal@17271 640 + u16 pad2;
pascal@17271 641 + u32 len;
pascal@17271 642 + /* char text[length] */
pascal@17271 643 +};
pascal@17271 644 +
pascal@17271 645 +struct vnc_server_colormap {
pascal@17271 646 + u8 type;
pascal@17271 647 + u8 pad;
pascal@17271 648 + u16 first;
pascal@17271 649 + u16 n;
pascal@17271 650 + /* u8 colors[n * 3 * 2]; */
pascal@17271 651 +};
pascal@17271 652 +
pascal@17271 653 +struct vnc_client_pixelfmt {
pascal@17271 654 + u8 type;
pascal@17271 655 + u8 pad1;
pascal@17271 656 + u16 pad2;
pascal@17271 657 + struct vnc_pixelfmt format;
pascal@17271 658 +};
pascal@17271 659 +
pascal@17271 660 +struct vnc_client_fbup {
pascal@17271 661 + u8 type;
pascal@17271 662 + u8 inc;
pascal@17271 663 + u16 x;
pascal@17271 664 + u16 y;
pascal@17271 665 + u16 w;
pascal@17271 666 + u16 h;
pascal@17271 667 +};
pascal@17271 668 +
pascal@17271 669 +struct vnc_client_keyevent {
pascal@17271 670 + u8 type;
pascal@17271 671 + u8 down;
pascal@17271 672 + u16 pad;
pascal@17271 673 + u32 key;
pascal@17271 674 +};
pascal@17271 675 +
pascal@17271 676 +struct vnc_client_ratevent {
pascal@17271 677 + u8 type;
pascal@17271 678 + u8 mask;
pascal@17271 679 + u16 x;
pascal@17271 680 + u16 y;
pascal@17271 681 +};