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 <ssl/err.h> 20 21 #include <err.h> 22 #include <stdlib.h> 23 #include <string.h> 24 25 #include "extern.h" 26 27 struct number * 28 new_number(void) 29 { 30 struct number *n; 31 32 n = bmalloc(sizeof(*n)); 33 n->scale = 0; 34 n->number = BN_new(); 35 if (n->number == NULL) 36 err(1, NULL); 37 return n; 38 } 39 40 void 41 free_number(struct number *n) 42 { 43 BN_free(n->number); 44 free(n); 45 } 46 47 struct number * 48 dup_number(const struct number *a) 49 { 50 struct number *n; 51 52 n = bmalloc(sizeof(*n)); 53 n->scale = a->scale; 54 n->number = BN_dup(a->number); 55 bn_checkp(n->number); 56 return n; 57 } 58 59 void * 60 bmalloc(size_t sz) 61 { 62 void *p; 63 64 p = malloc(sz); 65 if (p == NULL) 66 err(1, NULL); 67 return p; 68 } 69 70 void * 71 brealloc(void *p, size_t sz) 72 { 73 void *q; 74 75 q = realloc(p, sz); 76 if (q == NULL) 77 err(1, NULL); 78 return q; 79 } 80 81 char * 82 bstrdup(const char *p) 83 { 84 char *q; 85 86 q = strdup(p); 87 if (q == NULL) 88 err(1, NULL); 89 return q; 90 } 91 92 void 93 bn_check(int x) \ 94 { 95 if (x == 0) 96 err(1, "big number failure %lx", ERR_get_error()); 97 } 98 99 void 100 bn_checkp(const void *p) \ 101 { 102 if (p == NULL) 103 err(1, "allocation failure %lx", ERR_get_error()); 104 } 105