57 static int _pidfile_remove(struct pidfh *pfh, int freeit);
60 pidfile_verify(const struct pidfh *pfh)  in pidfile_verify()  argument
64 	if (pfh == NULL || pfh->pf_fd == -1)  in pidfile_verify()
69 	if (fstat(pfh->pf_fd, &sb) == -1)  in pidfile_verify()
71 	if (sb.st_dev != pfh->pf_dev || sb.st_ino != pfh->pf_ino)  in pidfile_verify()
106 	struct pidfh *pfh;  in pidfile_open()  local
112 	pfh = malloc(sizeof(*pfh));  in pidfile_open()
113 	if (pfh == NULL)  in pidfile_open()
117 		dirlen = snprintf(pfh->pf_dir, sizeof(pfh->pf_dir),  in pidfile_open()
119 		filenamelen = snprintf(pfh->pf_filename,  in pidfile_open()
120 		    sizeof(pfh->pf_filename), "%s.pid", getprogname());  in pidfile_open()
123 			free(pfh);  in pidfile_open()
127 		dirlen = strlcpy(pfh->pf_dir, dirname(path),  in pidfile_open()
128 		    sizeof(pfh->pf_dir));  in pidfile_open()
130 		filenamelen = strlcpy(pfh->pf_filename, basename(path),  in pidfile_open()
131 		    sizeof(pfh->pf_filename));  in pidfile_open()
134 	if (dirlen >= (int)sizeof(pfh->pf_dir) ||  in pidfile_open()
135 	    filenamelen >= (int)sizeof(pfh->pf_filename)) {  in pidfile_open()
136 		free(pfh);  in pidfile_open()
141 	dirfd = open(pfh->pf_dir, O_CLOEXEC | O_DIRECTORY | O_NONBLOCK);  in pidfile_open()
144 		free(pfh);  in pidfile_open()
155 	fd = flopenat(dirfd, pfh->pf_filename,  in pidfile_open()
167 					    pfh->pf_filename, pidptr);  in pidfile_open()
180 		free(pfh);  in pidfile_open()
204 	pfh->pf_dirfd = dirfd;  in pidfile_open()
205 	pfh->pf_fd = fd;  in pidfile_open()
206 	pfh->pf_dev = sb.st_dev;  in pidfile_open()
207 	pfh->pf_ino = sb.st_ino;  in pidfile_open()
209 	return (pfh);  in pidfile_open()
213 	unlinkat(dirfd, pfh->pf_filename, 0);  in pidfile_open()
216 	free(pfh);  in pidfile_open()
222 pidfile_write(struct pidfh *pfh)  in pidfile_write()  argument
231 	errno = pidfile_verify(pfh);  in pidfile_write()
238 	fd = pfh->pf_fd;  in pidfile_write()
245 		_pidfile_remove(pfh, 0);  in pidfile_write()
253 		_pidfile_remove(pfh, 0);  in pidfile_write()
262 pidfile_close(struct pidfh *pfh)  in pidfile_close()  argument
266 	error = pidfile_verify(pfh);  in pidfile_close()
272 	if (close(pfh->pf_fd) == -1)  in pidfile_close()
274 	if (close(pfh->pf_dirfd) == -1 && error == 0)  in pidfile_close()
277 	free(pfh);  in pidfile_close()
286 _pidfile_remove(struct pidfh *pfh, int freeit)  in _pidfile_remove()  argument
290 	error = pidfile_verify(pfh);  in _pidfile_remove()
296 	if (funlinkat(pfh->pf_dirfd, pfh->pf_filename, pfh->pf_fd, 0) == -1) {  in _pidfile_remove()
301 	if (close(pfh->pf_fd) == -1 && error == 0)  in _pidfile_remove()
303 	if (close(pfh->pf_dirfd) == -1 && error == 0)  in _pidfile_remove()
306 		free(pfh);  in _pidfile_remove()
308 		pfh->pf_fd = -1;  in _pidfile_remove()
317 pidfile_remove(struct pidfh *pfh)  in pidfile_remove()  argument
320 	return (_pidfile_remove(pfh, 1));  in pidfile_remove()
324 pidfile_fileno(const struct pidfh *pfh)  in pidfile_fileno()  argument
327 	if (pfh == NULL || pfh->pf_fd == -1) {  in pidfile_fileno()
331 	return (pfh->pf_fd);  in pidfile_fileno()