-
-static int
-chown_uucp(fd)
-int fd;
-{
- static int uuid = -1, ugid;
- struct passwd *pw;
-
- if (uuid <0) {
- if (pw = getpwnam("uucp")) {
- uuid = pw->pw_uid;
- ugid = pw->pw_gid;
- } else {
- return -1;
- }
- }
- return fchown(fd, uuid, ugid);
-}
-
-int make_lockfile(char *name)
-{
-char buf[1024],tmpfn[1024];
-char *ptr;
-int fd;
-int i;
-
-strcpy(tmpfn,name);
-
-ptr=rindex(tmpfn,'/');
-if (!ptr) return -1;
-
-ptr++;
-
-ptr+=sprintf(ptr,"LTMP.%d",getpid());
-*ptr=0;
-
-i=sprintf(buf,"%10d\n",getpid());
-
-fd=open(tmpfn,O_WRONLY|O_CREAT|O_TRUNC,0444);
-if (fd<0) {
- unlink(tmpfn);
- return -1;
-}
-
-write(fd,buf,i);
-fchmod(fd,044);
-if( chown_uucp(fd)) {
- close(fd);
- unlink(tmpfn);
- return -1;
-}
-
-close(fd);
-
-if (link(tmpfn,name)<0) {
- unlink(tmpfn);
- return -1;
-}
-
-unlink(tmpfn);
-return 0;
-}
-
-
-
-void construct_lock_file_name_by_name(char *ptr)
-{
-
-printf("lock by file %s\n",ptr);
-
-}
-void construct_lock_file_name_by_device(dev_t dev)
-{
-
-printf("lock by dev %x\n",dev);
-}
-
-
-#define DEV "/dev/"
-int construct_possible_lock_files(char *device)
-{
-int nl;
-struct dirent *de;
-DIR *d;
-struct stat dev_stat,ent_stat;
-char buf[1024];
-
-
-if (stat(device,&dev_stat)) return -1;
-if (!S_ISCHR(dev_stat.st_mode)) return -1;
-
-construct_lock_file_name_by_device(dev_stat.st_rdev);
-
-construct_lock_file_name_by_name(device);
-
-for (d=opendir(DEV);(de=readdir(d));)
-{
-strcpy(buf,DEV);
-strcat(buf,de->d_name);
-
-if (stat(buf,&ent_stat)) continue;
-if (!S_ISCHR(ent_stat.st_mode)) continue;
-if (ent_stat.st_rdev!=dev_stat.st_rdev) continue;
-
-construct_lock_file_name_by_name(buf);
-
-}
-closedir(d);
-
-}
-
-
-static void
-serial_check_lock(Serial *t)
-{
-}
-
-