1 files changed, 166 insertions, 0 deletions

diff --git a/src/lib/libcrypto/rand/randfile.c b/src/lib/libcrypto/rand/randfile.c
new file mode 100644
index 0000000000..f2b3746363
--- /dev/null
+++ b/src/lib/libcrypto/rand/randfile.c
@@ -0,0 +1,166 @@
+/* crypto/rand/randfile.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <sys/stat.h>
+#include <sys/types.h>
+#include "rand.h"
+
+#undef BUFSIZE
+#define BUFSIZE 1024
+#define RAND_DATA 1024
+
+/* #define RFILE ".rand" - defined in ../../e_os.h */
+
+int RAND_load_file(file,bytes)
+char *file;
+long bytes;
+        {
+        MS_STATIC unsigned char buf[BUFSIZE];
+        struct stat sb;
+        int i,ret=0,n;
+        FILE *in;
+
+        if (file == NULL) return(0);
+
+        i=stat(file,&sb);
+        /* If the state fails, put some crap in anyway */
+        RAND_seed((unsigned char *)&sb,sizeof(sb));
+        ret+=sizeof(sb);
+        if (i < 0) return(0);
+        if (bytes <= 0) return(ret);
+
+        in=fopen(file,"r");
+        if (in == NULL) goto err;
+        for (;;)
+                {
+                n=(bytes < BUFSIZE)?(int)bytes:BUFSIZE;
+                i=fread(buf,1,n,in);
+                if (i <= 0) break;
+                /* even if n != i, use the full array */
+                RAND_seed(buf,n);
+                ret+=i;
+                bytes-=n;
+                if (bytes <= 0) break;
+                }
+        fclose(in);
+        memset(buf,0,BUFSIZE);
+err:
+        return(ret);
+        }
+
+int RAND_write_file(file)
+char *file;
+        {
+        unsigned char buf[BUFSIZE];
+        int i,ret=0;
+        FILE *out;
+        int n;
+
+        out=fopen(file,"w");
+        if (out == NULL) goto err;
+        chmod(file,0600);
+        n=RAND_DATA;
+        for (;;)
+                {
+                i=(n > BUFSIZE)?BUFSIZE:n;
+                n-=BUFSIZE;
+                RAND_bytes(buf,i);
+                i=fwrite(buf,1,i,out);
+                if (i <= 0)
+                        {
+                        ret=0;
+                        break;
+                        }
+                ret+=i;
+                if (n <= 0) break;
+                }
+        fclose(out);
+        memset(buf,0,BUFSIZE);
+err:
+        return(ret);
+        }
+
+char *RAND_file_name(buf,size)
+char *buf;
+int size;
+        {
+        char *s;
+        char *ret=NULL;
+
+        s=getenv("RANDFILE");
+        if (s != NULL)
+                {
+                strncpy(buf,s,size-1);
+                buf[size-1]='\0';
+                ret=buf;
+                }
+        else
+                {
+                s=getenv("HOME");
+                if (s == NULL) return(RFILE);
+                if (((int)(strlen(s)+strlen(RFILE)+2)) > size)
+                        return(RFILE);
+                strcpy(buf,s);
+                strcat(buf,"/");
+                strcat(buf,RFILE);
+                ret=buf;
+                }
+        return(ret);
+        }