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Split protocol into own files.

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This commit is contained in:
Michael Jumper
2010-09-06 16:39:03 -07:00
parent bf8abcd40e
commit e77c76915a
5 changed files with 193 additions and 162 deletions
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7
guacamole/proxy/Makefile
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@@ -3,12 +3,15 @@
all: guacd
guacd: daemon.o proxy.o guacio.o
$(CC) -O2 daemon.o proxy.o guacio.o -l png -l vncclient -o guacd
guacd: daemon.o proxy.o guacio.o protocol.o
$(CC) -O2 daemon.o proxy.o protocol.o guacio.o -l png -l vncclient -o guacd
proxy.o: proxy.c proxy.h guacio.h
$(CC) -O2 -c -ansi -pedantic proxy.c
protocol.o: protocol.c protocol.h guacio.h
$(CC) -O2 -c -ansi -pedantic protocol.c
guacio.o: guacio.c guacio.h
$(CC) -O2 -c -ansi -pedantic guacio.c

2
guacamole/proxy/guacio.c
View File

@@ -3,6 +3,8 @@
#include <unistd.h>
#include <stdio.h>
#include <png.h>
#include "guacio.h"
char __GUACIO_BAS64_CHARACTERS[64] = {

169
guacamole/proxy/protocol.c Normal file
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@@ -0,0 +1,169 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <png.h>
#include "guacio.h"
#include "protocol.h"
char* guac_escape_string(const char* str) {
char* escaped;
char* current;
int i;
int length = 0;
/* Determine length */
for (i=0; str[i] != '\0'; i++) {
switch (str[i]) {
case ';':
length += 2;
break;
case ',':
length += 2;
break;
default:
length++;
}
}
/* Allocate new */
escaped = malloc(length+1);
current = escaped;
for (i=0; str[i] != '\0'; i++) {
switch (str[i]) {
case ';':
*(current++) = '\\';
*(current++) = 's';
break;
case ',':
*(current++) = '\\';
*(current++) = 'c';
break;
default:
*(current++) = str[i];
}
}
return escaped;
}
void guac_send_name(GUACIO* io, const char* name) {
guac_write_string(io, "name:");
guac_write_string(io, name);
guac_write_string(io, ";");
}
void guac_send_size(GUACIO* io, int w, int h) {
guac_write_string(io, "size:");
guac_write_int(io, w);
guac_write_string(io, ",");
guac_write_int(io, h);
guac_write_string(io, ";");
}
void guac_send_copy(GUACIO* io, int srcx, int srcy, int w, int h, int dstx, int dsty) {
guac_write_string(io, "copy:");
guac_write_int(io, srcx);
guac_write_string(io, ",");
guac_write_int(io, srcy);
guac_write_string(io, ",");
guac_write_int(io, w);
guac_write_string(io, ",");
guac_write_int(io, h);
guac_write_string(io, ",");
guac_write_int(io, dstx);
guac_write_string(io, ",");
guac_write_int(io, dsty);
guac_write_string(io, ";");
}
void __guac_write_png(png_structp png, png_bytep data, png_size_t length) {
if (guac_write_base64((GUACIO*) png->io_ptr, data, length) < 0) {
perror("Error writing PNG");
png_error(png, "Error writing PNG");
return;
}
}
void __guac_write_flush(png_structp png) {
}
void guac_send_png(GUACIO* io, int x, int y, png_byte** png_rows, int w, int h) {
png_structp png;
png_infop png_info;
png_byte* row;
/* Write image */
/* Set up PNG writer */
png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (!png) {
perror("Error initializing libpng write structure");
return;
}
png_info = png_create_info_struct(png);
if (!png_info) {
perror("Error initializing libpng info structure");
png_destroy_write_struct(&png, NULL);
return;
}
/* Set error handler */
if (setjmp(png_jmpbuf(png))) {
perror("Error setting handler");
png_destroy_write_struct(&png, &png_info);
return;
}
png_set_write_fn(png, io, __guac_write_png, __guac_write_flush);
/* Set PNG IHDR */
png_set_IHDR(
png,
png_info,
w,
h,
8,
PNG_COLOR_TYPE_RGB,
PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT,
PNG_FILTER_TYPE_DEFAULT
);
guac_write_string(io, "png:");
guac_write_int(io, x);
guac_write_string(io, ",");
guac_write_int(io, y);
guac_write_string(io, ",");
png_set_rows(png, png_info, png_rows);
png_write_png(png, png_info, PNG_TRANSFORM_IDENTITY, NULL);
if (guac_flush_base64(io) < 0) {
perror("Error flushing PNG");
png_error(png, "Error flushing PNG");
return;
}
png_destroy_write_struct(&png, &png_info);
guac_write_string(io, ";");
}

16
guacamole/proxy/protocol.h Normal file
View File

@@ -0,0 +1,16 @@
#ifndef __PROTOCOL_H
#define __PROTOCOL_H
#include <png.h>
#include "guacio.h"
char* guac_escape_string(const char* str);
void guac_send_name(GUACIO* io, const char* name);
void guac_send_size(GUACIO* io, int w, int h);
void guac_send_copy(GUACIO* io, int srcx, int srcy, int w, int h, int dstx, int dsty);
void guac_send_png(GUACIO* io, int x, int y, png_byte** png_rows, int w, int h);
#endif

161
guacamole/proxy/proxy.c
View File

@@ -6,6 +6,7 @@
#include <rfb/rfbclient.h>
#include "guacio.h"
#include "protocol.h"
#include "proxy.h"
char __guac_password[] = "potato";
@@ -13,166 +14,6 @@ char __guac_password[] = "potato";
char* __GUAC_VNC_TAG_IO = "GUACIO";
char* __GUAC_VNC_TAG_PNG_ROWS = "PNG_ROWS";
char* guac_escape_string(const char* str) {
char* escaped;
char* current;
int i;
int length = 0;
/* Determine length */
for (i=0; str[i] != '\0'; i++) {
switch (str[i]) {
case ';':
length += 2;
break;
case ',':
length += 2;
break;
default:
length++;
}
}
/* Allocate new */
escaped = malloc(length+1);
current = escaped;
for (i=0; str[i] != '\0'; i++) {
switch (str[i]) {
case ';':
*(current++) = '\\';
*(current++) = 's';
break;
case ',':
*(current++) = '\\';
*(current++) = 'c';
break;
default:
*(current++) = str[i];
}
}
return escaped;
}
void guac_write_png(png_structp png, png_bytep data, png_size_t length) {
if (guac_write_base64((GUACIO*) png->io_ptr, data, length) < 0) {
perror("Error writing PNG");
png_error(png, "Error writing PNG");
return;
}
}
void guac_write_flush(png_structp png) {
}
void guac_send_name(GUACIO* io, const char* name) {
guac_write_string(io, "name:");
guac_write_string(io, name);
guac_write_string(io, ";");
}
void guac_send_size(GUACIO* io, int w, int h) {
guac_write_string(io, "size:");
guac_write_int(io, w);
guac_write_string(io, ",");
guac_write_int(io, h);
guac_write_string(io, ";");
}
void guac_send_copy(GUACIO* io, int srcx, int srcy, int w, int h, int dstx, int dsty) {
guac_write_string(io, "copy:");
guac_write_int(io, srcx);
guac_write_string(io, ",");
guac_write_int(io, srcy);
guac_write_string(io, ",");
guac_write_int(io, w);
guac_write_string(io, ",");
guac_write_int(io, h);
guac_write_string(io, ",");
guac_write_int(io, dstx);
guac_write_string(io, ",");
guac_write_int(io, dsty);
guac_write_string(io, ";");
}
void guac_send_png(GUACIO* io, int x, int y, png_byte** png_rows, int w, int h) {
png_structp png;
png_infop png_info;
png_byte* row;
/* Write image */
/* Set up PNG writer */
png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (!png) {
perror("Error initializing libpng write structure");
return;
}
png_info = png_create_info_struct(png);
if (!png_info) {
perror("Error initializing libpng info structure");
png_destroy_write_struct(&png, NULL);
return;
}
/* Set error handler */
if (setjmp(png_jmpbuf(png))) {
perror("Error setting handler");
png_destroy_write_struct(&png, &png_info);
return;
}
png_set_write_fn(png, io, guac_write_png, guac_write_flush);
/* Set PNG IHDR */
png_set_IHDR(
png,
png_info,
w,
h,
8,
PNG_COLOR_TYPE_RGB,
PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT,
PNG_FILTER_TYPE_DEFAULT
);
guac_write_string(io, "png:");
guac_write_int(io, x);
guac_write_string(io, ",");
guac_write_int(io, y);
guac_write_string(io, ",");
png_set_rows(png, png_info, png_rows);
png_write_png(png, png_info, PNG_TRANSFORM_IDENTITY, NULL);
if (guac_flush_base64(io) < 0) {
perror("Error flushing PNG");
png_error(png, "Error flushing PNG");
return;
}
png_destroy_write_struct(&png, &png_info);
guac_write_string(io, ";");
}
void guac_vnc_update(rfbClient* client, int x, int y, int w, int h) {
int dx, dy;