crypto/external/bsd/netpgp/dist/src/librsa/rsastubs.c

   1 /*-
   2  * Copyright (c) 2012 Alistair Crooks <agc@NetBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29 #include <pwd.h>
  30
  31 #include "rsa.h"
  32 #include "rsastubs.h"
  33
  34 #ifndef USE_ARG
  35 #define USE_ARG(x)      /*LINTED*/(void)&(x)
  36 #endif
  37
  38 static int
  39 pass_cb(char *buf, int size, int rwflag, void *u)
  40 {
  41         char    *passphrase;
  42         char     prompt[128];
  43
  44         USE_ARG(rwflag);
  45         snprintf(prompt, sizeof(prompt), "\"%s\" passphrase: ", (char *)u);
  46         if ((passphrase = getpass(prompt)) == NULL) {
  47                 return -1;
  48         }
  49         (void) memcpy(buf, passphrase, (size_t)size);
  50         return (int)strlen(passphrase);
  51 }
  52
  53 RSA *
  54 PEM_read_RSAPrivateKey(FILE *fp, RSA **x, pem_password_cb *cb, void *u)
  55 {
  56         char     phrase[128 + 1];
  57         RSA     *rsa;
  58         int      cc;
  59
  60 fprintf(stderr, "Stubbed PEM_read_RSAPrivateKey\n");
  61         USE_ARG(u);
  62         if (cb == NULL) {
  63                 cb = pass_cb;
  64         }
  65         cc = (*cb)(phrase, sizeof(phrase), 0, u);
  66         rsa = *x = RSA_new();
  67         USE_ARG(fp);
  68         return rsa;
  69 }
  70
  71 DSA *
  72 PEM_read_DSAPrivateKey(FILE *fp, DSA **x, pem_password_cb *cb, void *u)
  73 {
  74         DSA     *dsa;
  75
  76         USE_ARG(u);
  77         if (cb == NULL) {
  78                 cb = pass_cb;
  79         }
  80         dsa = *x = DSA_new();
  81         USE_ARG(fp);
  82         return dsa;
  83 }