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cli_warnmsg("*** This version of the ClamAV engine is outdated.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; }