refuse_lowlevel.c revision 1.1.2.2
1 1.1.2.2 pgoyette /* $NetBSD: refuse_lowlevel.c,v 1.1.2.2 2017/01/07 08:56:04 pgoyette Exp $ */ 2 1.1.2.2 pgoyette 3 1.1.2.2 pgoyette /* 4 1.1.2.2 pgoyette * Copyright (c) 2016 The NetBSD Foundation, Inc. 5 1.1.2.2 pgoyette * All rights reserved. 6 1.1.2.2 pgoyette * 7 1.1.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 pgoyette * modification, are permitted provided that the following conditions 9 1.1.2.2 pgoyette * are met: 10 1.1.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 pgoyette * documentation and/or other materials provided with the distribution. 15 1.1.2.2 pgoyette * 3. The name of the author may not be used to endorse or promote 16 1.1.2.2 pgoyette * products derived from this software without specific prior written 17 1.1.2.2 pgoyette * permission. 18 1.1.2.2 pgoyette * 19 1.1.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 20 1.1.2.2 pgoyette * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 1.1.2.2 pgoyette * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 1.1.2.2 pgoyette * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 23 1.1.2.2 pgoyette * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 1.1.2.2 pgoyette * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 25 1.1.2.2 pgoyette * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.1.2.2 pgoyette * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 1.1.2.2 pgoyette * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 28 1.1.2.2 pgoyette * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 29 1.1.2.2 pgoyette * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 1.1.2.2 pgoyette */ 31 1.1.2.2 pgoyette 32 1.1.2.2 pgoyette #include <sys/cdefs.h> 33 1.1.2.2 pgoyette #if !defined(lint) 34 1.1.2.2 pgoyette __RCSID("$NetBSD: refuse_lowlevel.c,v 1.1.2.2 2017/01/07 08:56:04 pgoyette Exp $"); 35 1.1.2.2 pgoyette #endif /* !lint */ 36 1.1.2.2 pgoyette 37 1.1.2.2 pgoyette #include <fuse_lowlevel.h> 38 1.1.2.2 pgoyette #include <fuse_opt.h> 39 1.1.2.2 pgoyette #include <stddef.h> 40 1.1.2.2 pgoyette #include <stdio.h> 41 1.1.2.2 pgoyette #include <stdlib.h> 42 1.1.2.2 pgoyette #include <string.h> 43 1.1.2.2 pgoyette 44 1.1.2.2 pgoyette #define REFUSE_LOWLEVEL_OPT(t, p, v) \ 45 1.1.2.2 pgoyette { t, offsetof(struct fuse_cmdline_opts, p), v } 46 1.1.2.2 pgoyette 47 1.1.2.2 pgoyette static struct fuse_opt fuse_lowlevel_opts[] = { 48 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("-h" , show_help , 1), 49 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("--help" , show_help , 1), 50 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("-V" , show_version , 1), 51 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("--version", show_version , 1), 52 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("-d" , debug , 1), 53 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("debug" , debug , 1), 54 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("-d" , foreground , 1), 55 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("debug" , foreground , 1), 56 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("-f" , foreground , 1), 57 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("-s" , singlethread , 1), 58 1.1.2.2 pgoyette REFUSE_LOWLEVEL_OPT("fsname=" , nodefault_fsname, 1), 59 1.1.2.2 pgoyette FUSE_OPT_KEY ("fsname=" , FUSE_OPT_KEY_KEEP ), 60 1.1.2.2 pgoyette FUSE_OPT_END 61 1.1.2.2 pgoyette }; 62 1.1.2.2 pgoyette 63 1.1.2.2 pgoyette void fuse_lowlevel_version(void) 64 1.1.2.2 pgoyette { 65 1.1.2.2 pgoyette /* XXX: Print something */ 66 1.1.2.2 pgoyette } 67 1.1.2.2 pgoyette 68 1.1.2.2 pgoyette void fuse_cmdline_help(void) 69 1.1.2.2 pgoyette { 70 1.1.2.2 pgoyette printf("refuse options:\n" 71 1.1.2.2 pgoyette " -d, -o debug enable debug output, implies -f\n" 72 1.1.2.2 pgoyette " -f foreground mode\n" 73 1.1.2.2 pgoyette " -s single threaded mode (always enabled for now)\n" 74 1.1.2.2 pgoyette " -o fsname=NAME explicitly set the name of the file system\n"); 75 1.1.2.2 pgoyette } 76 1.1.2.2 pgoyette 77 1.1.2.2 pgoyette static int refuse_lowlevel_opt_proc(void* data, const char *arg, int key, 78 1.1.2.2 pgoyette struct fuse_args *outargs) 79 1.1.2.2 pgoyette { 80 1.1.2.2 pgoyette struct fuse_cmdline_opts *opts = data; 81 1.1.2.2 pgoyette 82 1.1.2.2 pgoyette switch (key) { 83 1.1.2.2 pgoyette case FUSE_OPT_KEY_NONOPT: 84 1.1.2.2 pgoyette if (opts->mountpoint == NULL) { 85 1.1.2.2 pgoyette return fuse_opt_add_opt(&opts->mountpoint, arg); 86 1.1.2.2 pgoyette } 87 1.1.2.2 pgoyette else { 88 1.1.2.2 pgoyette (void)fprintf(stderr, "fuse: invalid argument: %s\n", arg); 89 1.1.2.2 pgoyette return -1; 90 1.1.2.2 pgoyette } 91 1.1.2.2 pgoyette 92 1.1.2.2 pgoyette default: 93 1.1.2.2 pgoyette return 1; /* keep the argument */ 94 1.1.2.2 pgoyette } 95 1.1.2.2 pgoyette } 96 1.1.2.2 pgoyette 97 1.1.2.2 pgoyette static int add_default_fsname(struct fuse_args *args) 98 1.1.2.2 pgoyette { 99 1.1.2.2 pgoyette const char *arg0 = args->argv[0]; 100 1.1.2.2 pgoyette const char *slash; 101 1.1.2.2 pgoyette 102 1.1.2.2 pgoyette if (arg0 == NULL || arg0[0] == '\0') { 103 1.1.2.2 pgoyette return fuse_opt_add_arg(args, "-ofsname=refuse"); 104 1.1.2.2 pgoyette } else { 105 1.1.2.2 pgoyette char *arg; 106 1.1.2.2 pgoyette int rv; 107 1.1.2.2 pgoyette 108 1.1.2.2 pgoyette if ((slash = strrchr(arg0, '/')) == NULL) { 109 1.1.2.2 pgoyette slash = arg0; 110 1.1.2.2 pgoyette } else { 111 1.1.2.2 pgoyette slash += 1; 112 1.1.2.2 pgoyette } 113 1.1.2.2 pgoyette 114 1.1.2.2 pgoyette if (asprintf(&arg, "-ofsname=refuse:%s", slash) == -1) 115 1.1.2.2 pgoyette return -1; 116 1.1.2.2 pgoyette 117 1.1.2.2 pgoyette rv = fuse_opt_add_arg(args, arg); 118 1.1.2.2 pgoyette free(arg); 119 1.1.2.2 pgoyette return rv; 120 1.1.2.2 pgoyette } 121 1.1.2.2 pgoyette } 122 1.1.2.2 pgoyette 123 1.1.2.2 pgoyette int fuse_parse_cmdline(struct fuse_args *args, struct fuse_cmdline_opts *opts) 124 1.1.2.2 pgoyette { 125 1.1.2.2 pgoyette memset(opts, 0, sizeof(*opts)); 126 1.1.2.2 pgoyette 127 1.1.2.2 pgoyette /* 128 1.1.2.2 pgoyette * XXX: The single threaded mode is always enabled and cannot be 129 1.1.2.2 pgoyette * disabled. This is because puffs currently does not support 130 1.1.2.2 pgoyette * multithreaded operation. 131 1.1.2.2 pgoyette */ 132 1.1.2.2 pgoyette opts->singlethread = 1; 133 1.1.2.2 pgoyette 134 1.1.2.2 pgoyette if (fuse_opt_parse(args, opts, fuse_lowlevel_opts, 135 1.1.2.2 pgoyette refuse_lowlevel_opt_proc) == -1) 136 1.1.2.2 pgoyette return -1; 137 1.1.2.2 pgoyette 138 1.1.2.2 pgoyette if (!opts->nodefault_fsname) { 139 1.1.2.2 pgoyette /* -o fsname=%s is not specified so add a default fsname 140 1.1.2.2 pgoyette * generated from the program basename. 141 1.1.2.2 pgoyette */ 142 1.1.2.2 pgoyette if (add_default_fsname(args) == -1) 143 1.1.2.2 pgoyette return -1; 144 1.1.2.2 pgoyette } 145 1.1.2.2 pgoyette 146 1.1.2.2 pgoyette return 0; 147 1.1.2.2 pgoyette } 148
Indexes created Thu Oct 02 14:10:14 GMT 2025