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authorryker <>1998-10-05 20:13:14 +0000
committerryker <>1998-10-05 20:13:14 +0000
commitaeeae06a79815dc190061534d47236cec09f9e32 (patch)
tree851692b9c2f9c04f077666855641900f19fdb217 /src/lib/libcrypto/rand/randfile.c
parenta4f79641824cbf9f60ca9d1168d1fcc46717a82a (diff)
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Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build
functionality for shared libs. Note that routines such as sslv2_init and friends that use RSA will not work due to lack of RSA in this library. Needs documentation and help from ports for easy upgrade to full functionality where legally possible.
Diffstat (limited to 'src/lib/libcrypto/rand/randfile.c')
-rw-r--r--src/lib/libcrypto/rand/randfile.c166
1 files changed, 166 insertions, 0 deletions
diff --git a/src/lib/libcrypto/rand/randfile.c b/src/lib/libcrypto/rand/randfile.c
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index 0000000000..f2b3746363
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+++ b/src/lib/libcrypto/rand/randfile.c
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1/* crypto/rand/randfile.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include "cryptlib.h"
61#include <sys/stat.h>
62#include <sys/types.h>
63#include "rand.h"
64
65#undef BUFSIZE
66#define BUFSIZE 1024
67#define RAND_DATA 1024
68
69/* #define RFILE ".rand" - defined in ../../e_os.h */
70
71int RAND_load_file(file,bytes)
72char *file;
73long bytes;
74 {
75 MS_STATIC unsigned char buf[BUFSIZE];
76 struct stat sb;
77 int i,ret=0,n;
78 FILE *in;
79
80 if (file == NULL) return(0);
81
82 i=stat(file,&sb);
83 /* If the state fails, put some crap in anyway */
84 RAND_seed((unsigned char *)&sb,sizeof(sb));
85 ret+=sizeof(sb);
86 if (i < 0) return(0);
87 if (bytes <= 0) return(ret);
88
89 in=fopen(file,"r");
90 if (in == NULL) goto err;
91 for (;;)
92 {
93 n=(bytes < BUFSIZE)?(int)bytes:BUFSIZE;
94 i=fread(buf,1,n,in);
95 if (i <= 0) break;
96 /* even if n != i, use the full array */
97 RAND_seed(buf,n);
98 ret+=i;
99 bytes-=n;
100 if (bytes <= 0) break;
101 }
102 fclose(in);
103 memset(buf,0,BUFSIZE);
104err:
105 return(ret);
106 }
107
108int RAND_write_file(file)
109char *file;
110 {
111 unsigned char buf[BUFSIZE];
112 int i,ret=0;
113 FILE *out;
114 int n;
115
116 out=fopen(file,"w");
117 if (out == NULL) goto err;
118 chmod(file,0600);
119 n=RAND_DATA;
120 for (;;)
121 {
122 i=(n > BUFSIZE)?BUFSIZE:n;
123 n-=BUFSIZE;
124 RAND_bytes(buf,i);
125 i=fwrite(buf,1,i,out);
126 if (i <= 0)
127 {
128 ret=0;
129 break;
130 }
131 ret+=i;
132 if (n <= 0) break;
133 }
134 fclose(out);
135 memset(buf,0,BUFSIZE);
136err:
137 return(ret);
138 }
139
140char *RAND_file_name(buf,size)
141char *buf;
142int size;
143 {
144 char *s;
145 char *ret=NULL;
146
147 s=getenv("RANDFILE");
148 if (s != NULL)
149 {
150 strncpy(buf,s,size-1);
151 buf[size-1]='\0';
152 ret=buf;
153 }
154 else
155 {
156 s=getenv("HOME");
157 if (s == NULL) return(RFILE);
158 if (((int)(strlen(s)+strlen(RFILE)+2)) > size)
159 return(RFILE);
160 strcpy(buf,s);
161 strcat(buf,"/");
162 strcat(buf,RFILE);
163 ret=buf;
164 }
165 return(ret);
166 }