mem.c revision 256281
1/* $OpenBSD: mem.c,v 1.5 2009/10/27 23:59:37 deraadt Exp $ */ 2 3/* 4 * Copyright (c) 2003, Otto Moerbeek <otto@drijf.net> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19#include <sys/cdefs.h> 20__FBSDID("$FreeBSD: stable/10/usr.bin/dc/mem.c 203443 2010-02-03 21:06:13Z gabor $"); 21 22#include <openssl/err.h> 23 24#include <err.h> 25#include <stdlib.h> 26#include <string.h> 27 28#include "extern.h" 29 30struct number * 31new_number(void) 32{ 33 struct number *n; 34 35 n = bmalloc(sizeof(*n)); 36 n->scale = 0; 37 n->number = BN_new(); 38 if (n->number == NULL) 39 err(1, NULL); 40 return (n); 41} 42 43void 44free_number(struct number *n) 45{ 46 47 BN_free(n->number); 48 free(n); 49} 50 51struct number * 52dup_number(const struct number *a) 53{ 54 struct number *n; 55 56 n = bmalloc(sizeof(*n)); 57 n->scale = a->scale; 58 n->number = BN_dup(a->number); 59 bn_checkp(n->number); 60 return (n); 61} 62 63void * 64bmalloc(size_t sz) 65{ 66 void *p; 67 68 p = malloc(sz); 69 if (p == NULL) 70 err(1, NULL); 71 return (p); 72} 73 74void * 75brealloc(void *p, size_t sz) 76{ 77 void *q; 78 79 q = realloc(p, sz); 80 if (q == NULL) 81 err(1, NULL); 82 return (q); 83} 84 85char * 86bstrdup(const char *p) 87{ 88 char *q; 89 90 q = strdup(p); 91 if (q == NULL) 92 err(1, NULL); 93 return (q); 94} 95 96void 97bn_check(int x) \ 98{ 99 100 if (x == 0) 101 err(1, "big number failure %lx", ERR_get_error()); 102} 103 104void 105bn_checkp(const void *p) \ 106{ 107 108 if (p == NULL) 109 err(1, "allocation failure %lx", ERR_get_error()); 110} 111