1 /* 2 * Copyright (c) 2017 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@dragonflybsd.org> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 28 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include "hammer2.h" 33 34 static int pathdir(const char *path, const char **lastp); 35 36 int 37 cmd_destroy_path(int ac, const char **av) 38 { 39 hammer2_ioc_destroy_t destroy; 40 const char *last; 41 int i; 42 int fd; 43 44 for (i = 0; i < ac; ++i) { 45 bzero(&destroy, sizeof(destroy)); 46 destroy.cmd = HAMMER2_DELETE_FILE; 47 printf("%s\t", av[i]); 48 fflush(stdout); 49 fd = pathdir(av[i], &last); 50 if (fd >= 0) { 51 snprintf(destroy.path, sizeof(destroy.path), 52 "%s", last); 53 if (ioctl(fd, HAMMER2IOC_DESTROY, &destroy) < 0) { 54 printf("error: %s\n", strerror(errno)); 55 } else { 56 printf("ok\n"); 57 } 58 close(fd); 59 } else { 60 printf("error: %s\n", strerror(errno)); 61 } 62 } 63 return 0; 64 } 65 66 static 67 int 68 pathdir(const char *path, const char **lastp) 69 { 70 const char *ptr; 71 char *npath; 72 int fd; 73 74 ptr = path + strlen(path); 75 while (ptr > path && ptr[-1] != '/') 76 --ptr; 77 *lastp = ptr; 78 if (ptr == path) { 79 fd = open(".", O_RDONLY); 80 } else { 81 asprintf(&npath, "%*.*s", 82 (int)(ptr - path), (int)(ptr - path), path); 83 fd = open(npath, O_RDONLY); 84 free(npath); 85 } 86 87 return fd; 88 } 89