1 /* 2 * hold_inode.c --- test program which holds an inode or directory 3 * open. 4 * 5 * Copyright (C) 2000 Theodore Ts'o. 6 * 7 * %Begin-Header% 8 * This file may be redistributed under the terms of the GNU Public 9 * License. 10 * %End-Header% 11 */ 12 13 #include <unistd.h> 14 #include <stdio.h> 15 #include <dirent.h> 16 #include <sys/types.h> 17 #include <sys/stat.h> 18 #include <fcntl.h> 19 20 21 main(int argc, char **argv) 22 { 23 struct stat statbuf; 24 char *filename; 25 26 if (argc != 2) { 27 fprintf(stderr, "Usage: %s dir\n", argv[0]); 28 exit(1); 29 } 30 filename = argv[1]; 31 if (stat(filename, &statbuf) < 0) { 32 perror(filename); 33 exit(1); 34 } 35 if (S_ISDIR(statbuf.st_mode)) { 36 if (!opendir(filename)) { 37 perror(filename); 38 exit(1); 39 } 40 } else { 41 if (open(filename, O_RDONLY) < 0) { 42 perror(filename); 43 exit(1); 44 } 45 } 46 sleep(30); 47 } 48
