/*
* Private function name: vnc_raw_to_bitmap
* Since version: 0.4.5
* Description: Function to get the bitmap from raw encoding
* Arguments: @infile [string]: input file
* @outfile [string]: output file
* @width [int]: width of the output image (for bitmap headers)
* @height [int]: height of the output image (for bitmap headers)
* Returns: 0 on success, -errno otherwise
*/
static int
vnc_raw_to_bmp(char *infile, char *outfile, int width, int height)
{
int i, ix, fd, fd2;
tBMPFile fBMP = { 0 };
long size = -1;
long len, hsize = 0;
uint32_t *pixels = NULL;
unsigned char buf[8192] = { 0 };
unsigned char tbuf[4] = { 0 };
long total = 0;
int start, end;
fd = open(infile, O_RDONLY);
if (fd == -1)
return -EACCES;
size = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_SET);
hsize = sizeof(tBMPFile);
fBMP.filesz = size + hsize + 2;
fBMP.bmp_offset = hsize + 2;
fBMP.header_sz = 40;
fBMP.height = width;
fBMP.width = height;
fBMP.nplanes = 1;
fBMP.bitspp = 32;
fBMP.compress_type = 0;
fBMP.bmp_bytesz = 32;
fBMP.hres = 2835;
fBMP.vres = 2835;
fBMP.ncolors = 0;
fBMP.nimpcolors = 0;
fd2 = open(outfile, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (fd2 == -1)
return -EPERM;
if (write(fd2, "BM", 2) < 0 ||
write(fd2, &fBMP, hsize) < 0)
perror("Error on write");
ix = 0;
pixels = malloc(width * height * sizeof(uint32_t));
if (pixels == NULL)
return -ENOMEM;
total = 0;
while ((len = read(fd, buf, sizeof(buf))) > 0) {
for (i = 0; i < len; i += 4) {
tbuf[0] = buf[i];
tbuf[1] = buf[i + 1];
tbuf[2] = buf[i + 2];
tbuf[3] = buf[i + 3];
pixels[ix++] = GETUINT32(tbuf);
total++;
}
memset(buf, 0, sizeof(buf));
}
/* Flip the image to get the real image */
for (i = height - 1; i >= 0; i--) {
start = (i * width) + 1;
end = ((i + 1) * width) + 1;
for (ix = start; ix < end; ix++) {
UINT32STR(tbuf, pixels[ix]);
if (write(fd2, tbuf, 4) < 0)
perror("Error on write");
}
}
VIR_FREE(pixels);
close(fd2);
close(fd);
return 0;
}
int archive_write_header(int fd, tArchiveFile *files, int numFiles)
{
int i, ret = 0;
char *name = NULL;
unsigned char dataByte[1] = { 0 }, dataWord[2] = { 0 };
unsigned char data32[4] = { 0 }, data64[8] = { 0 };
write(fd, SIGNATURE, sizeof(SIGNATURE));
ret = sizeof(SIGNATURE);
WORDSTR(dataWord, ARCHIVER_VERSION);
write(fd, dataWord, sizeof(dataWord));
ret += sizeof(dataWord);
/* Extra header size */
WORDSTR(dataWord, 0);
write(fd, dataWord, sizeof(dataWord));
ret += sizeof(dataWord);
WORDSTR(dataWord, numFiles);
write(fd, dataWord, sizeof(dataWord));
ret += sizeof(dataWord);
WORDSTR(dataWord, 0x0000);
write(fd, dataWord, sizeof(dataWord));
ret += sizeof(dataWord);
for (i = 0; i < numFiles; i++) {
BYTESTR(dataByte, strlen(files[i].name));
write(fd, dataByte, sizeof(dataByte));
ret += sizeof(dataByte);
name = strdup( basename(files[i].name) );
write(fd, name, strlen(name));
ret += strlen(name);
free(name);
UINT32STR(data32, files[i].crc);
write(fd, data32, sizeof(data32));
ret += sizeof(data32);
UINT64STR(data64, files[i].size);
write(fd, data64, sizeof(data64));
ret += sizeof(data64);
UINT64STR(data64, files[i].compressed_size);
write(fd, data64, sizeof(data64));
ret += sizeof(data64);
BYTESTR(dataByte, files[i].encrypted ? 1 : 0);
write(fd, dataByte, sizeof(dataByte));
ret += sizeof(dataByte);
WORDSTR(dataWord, 0x4e45);
write(fd, dataWord, sizeof(dataWord));
ret += sizeof(dataWord);
}
WORDSTR(dataWord, 0x4e46);
write(fd, dataWord, sizeof(dataWord));
ret += sizeof(dataWord);
return ret;
}