1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2018 Mariusz Zaborski <oshogbo@FreeBSD.org> 5 * All rights reserved. 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 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _FILEARGS_H_ 32 #define _FILEARGS_H_ 33 34 #include <sys/dnv.h> 35 #include <sys/nv.h> 36 37 #include <stdbool.h> 38 39 #ifdef WITH_CASPER 40 struct fileargs; 41 typedef struct fileargs fileargs_t; 42 43 fileargs_t *fileargs_init(int argc, char *argv[], int flags, mode_t mode, 44 cap_rights_t *rightsp); 45 fileargs_t *fileargs_cinit(cap_channel_t *cas, int argc, char *argv[], 46 int flags, mode_t mode, cap_rights_t *rightsp); 47 fileargs_t *fileargs_initnv(nvlist_t *limits); 48 fileargs_t *fileargs_cinitnv(cap_channel_t *cas, nvlist_t *limits); 49 int fileargs_open(fileargs_t *fa, const char *name); 50 void fileargs_free(fileargs_t *fa); 51 FILE *fileargs_fopen(fileargs_t *fa, const char *name, const char *mode); 52 #else 53 typedef struct fileargs { 54 int fa_flags; 55 mode_t fa_mode; 56 } fileargs_t; 57 58 static inline fileargs_t * 59 fileargs_init(int argc __unused, char *argv[] __unused, int flags, mode_t mode, 60 cap_rights_t *rightsp __unused) { 61 fileargs_t *fa; 62 63 fa = malloc(sizeof(*fa)); 64 if (fa != NULL) { 65 fa->fa_flags = flags; 66 fa->fa_mode = mode; 67 } 68 69 return (fa); 70 } 71 72 static inline fileargs_t * 73 fileargs_cinit(cap_channel_t *cas __unused, int argc, char *argv[], int flags, 74 mode_t mode, cap_rights_t *rightsp) 75 { 76 77 return (fileargs_init(argc, argv, flags, mode, rightsp)); 78 } 79 80 static inline fileargs_t * 81 fileargs_initnv(nvlist_t *limits) 82 { 83 fileargs_t *fa; 84 85 fa = fileargs_init(0, NULL, 86 nvlist_get_number(limits, "flags"), 87 dnvlist_get_number(limits, "mode", 0), 88 NULL); 89 nvlist_destroy(limits); 90 91 return (fa); 92 } 93 94 static inline fileargs_t * 95 fileargs_cinitnv(cap_channel_t *cas __unused, nvlist_t *limits) 96 { 97 98 return (fileargs_initnv(limits)); 99 } 100 101 #define fileargs_open(fa, name) \ 102 open(name, fa->fa_flags, fa->fa_mode) 103 #define fileargs_fopen(fa, name, mode) \ 104 fopen(name, mode) 105 #define fileargs_free(fa) (free(fa)) 106 #endif 107 108 #endif /* !_FILEARGS_H_ */ 109