This source file includes following definitions.
- uncompress_file
- load
- formats
#include "loader_common.h"
#include <bzlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <assert.h>
#define OUTBUF_SIZE 16384
#define INBUF_SIZE 1024
static int
uncompress_file(FILE * fp, int dest)
{
BZFILE *bf;
DATA8 outbuf[OUTBUF_SIZE];
int bytes, error, ret = 1;
bf = BZ2_bzReadOpen(&error, fp, 0, 0, NULL, 0);
if (error != BZ_OK)
{
BZ2_bzReadClose(NULL, bf);
return 0;
}
while (1)
{
bytes = BZ2_bzRead(&error, bf, &outbuf, OUTBUF_SIZE);
if (error == BZ_OK || error == BZ_STREAM_END)
write(dest, outbuf, bytes);
if (error == BZ_STREAM_END)
break;
else if (error != BZ_OK)
{
ret = 0;
break;
}
}
BZ2_bzReadClose(&error, bf);
return ret;
}
char
load(ImlibImage * im, ImlibProgressFunction progress,
char progress_granularity, char immediate_load)
{
ImlibLoader *loader;
FILE *fp;
int dest, res;
char *file, tmp[] = "/tmp/imlib2_loader_bz2-XXXXXX", *p;
char real_ext[16];
assert(im);
p = strrchr(im->real_file, '.');
if (p && p != im->real_file)
{
if (strcasecmp(p + 1, "bz2"))
return 0;
}
else
return 0;
strncpy(real_ext, p - sizeof(real_ext) + 1, sizeof(real_ext));
real_ext[sizeof(real_ext) - 1] = '\0';
if (!strrchr(real_ext, '.'))
return 0;
if (!(fp = fopen(im->real_file, "rb")))
{
return 0;
}
if ((dest = mkstemp(tmp)) < 0)
{
fclose(fp);
return 0;
}
res = uncompress_file(fp, dest);
fclose(fp);
close(dest);
if (!res)
{
unlink(tmp);
return 0;
}
if (!(loader = __imlib_FindBestLoaderForFile(real_ext, 0)))
{
unlink(tmp);
return 0;
}
file = strdup(im->real_file);
free(im->real_file);
im->real_file = strdup(tmp);
loader->load(im, progress, progress_granularity, immediate_load);
free(im->real_file);
im->real_file = file;
unlink(tmp);
return 1;
}
void
formats(ImlibLoader * l)
{
char *list_formats[] = { "bz2" };
int i;
l->num_formats = sizeof(list_formats) / sizeof(char *);
l->formats = malloc(sizeof(char *) * l->num_formats);
for (i = 0; i < l->num_formats; i++)
l->formats[i] = strdup(list_formats[i]);
}