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Annotation of src/usr.bin/dc/mem.c, Revision 1.6

1.6     ! deraadt     1: /*     $OpenBSD: mem.c,v 1.6 2014/12/01 13:11:21 deraadt Exp $ */
1.1       otto        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)
1.3       otto       36:                err(1, NULL);
1.1       otto       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)
1.3       otto       66:                err(1, NULL);
1.1       otto       67:        return p;
                     68: }
                     69:
                     70: void *
1.6     ! deraadt    71: breallocarray(void *p, size_t nmemb, size_t size)
1.1       otto       72: {
                     73:        void *q;
                     74:
1.6     ! deraadt    75:        q = reallocarray(p, nmemb, size);
1.4       otto       76:        if (q == NULL)
1.3       otto       77:                err(1, NULL);
1.1       otto       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)
1.3       otto       88:                err(1, NULL);
1.1       otto       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: }