int cli_cvdunpack(const char *file, const char *dir)
{
int fd, ret;
fd = open(file, O_RDONLY|O_BINARY);
if(fd == -1)
return -1;
if(lseek(fd, 512, SEEK_SET) < 0) {
close(fd);
return -1;
}
ret = cli_untgz(fd, dir);
close(fd);
return ret;
}
int cli_cvdload(FILE *fs, struct cl_engine **engine, unsigned int *signo, short warn, unsigned int options)
{
char *dir;
struct cl_cvd cvd;
int ret;
time_t s_time;
int cfd;
cli_dbgmsg("in cli_cvdload()\n");
/* verify */
if((ret = cli_cvdverify(fs, &cvd)))
return ret;
if(cvd.stime && warn) {
time(&s_time);
if((int) s_time - cvd.stime > 604800) {
cli_warnmsg("**************************************************\n");
cli_warnmsg("*** The virus database is older than 7 days! ***\n");
cli_warnmsg("*** Please update it as soon as possible. ***\n");
cli_warnmsg("**************************************************\n");
}
}
if(cvd.fl > cl_retflevel()) {
cli_warnmsg("***********************************************************\n");
cli_warnmsg("*** This version of the ClamAV engine is outdated. ***\n");
cli_warnmsg("*** DON'T PANIC! Read http://www.clamav.net/support/faq ***\n");
cli_warnmsg("***********************************************************\n");
}
dir = cli_gentemp(NULL);
if(mkdir(dir, 0700)) {
cli_errmsg("cli_cvdload(): Can't create temporary directory %s\n", dir);
free(dir);
return CL_ETMPDIR;
}
cfd = fileno(fs);
/* use only operations on file descriptors, and not on the FILE* from here on
* if we seek the FILE*, the underlying descriptor may not seek as expected
* (for example on OpenBSD, cygwin, etc.).
* So seek the descriptor directly.
*/
if(lseek(cfd, 512, SEEK_SET) == -1) {
cli_errmsg("cli_cvdload(): lseek(fs, 512, SEEK_SET) failed\n");
return CL_EIO;
}
if(cli_untgz(cfd, dir)) {
cli_errmsg("cli_cvdload(): Can't unpack CVD file.\n");
free(dir);
return CL_ECVDEXTR;
}
/* load extracted directory */
ret = cl_load(dir, engine, signo, options);
cli_rmdirs(dir);
free(dir);
return ret;
}
