#include <stdlib.h>
#include <string.h>
-#include "openssl/e_os.h"
-
#ifdef VMS
#include <unixio.h>
#endif
# include <sys/stat.h>
#endif
+#include "openssl/e_os.h"
#include <openssl/crypto.h>
#include <openssl/rand.h>
/* #define RFILE ".rnd" - defined in ../../e_os.h */
+/* Note that these functions are intended for seed files only.
+ * Entropy devices and EGD sockets are handled in rand_unix.c */
+
int RAND_load_file(const char *file, long bytes)
{
/* If bytes >= 0, read up to 'bytes' bytes.
if (bytes > 0)
{
bytes-=n;
- if (bytes == 0) break;
+ if (bytes <= 0) break;
}
}
fclose(in);
int RAND_write_file(const char *file)
{
unsigned char buf[BUFSIZE];
- int i,ret=0,err=0;
+ int i,ret=0,rand_err=0;
FILE *out = NULL;
int n;
-
-#ifdef VMS
- /* Under VMS, fopen(file, "wb") will create a new version of the
- same file. This is not good, so let's try updating an existing
- one, and create file only if it doesn't already exist. */
- /* At the same time, if we just update a file, we also need to
- truncate it, and unfortunately, ftruncate() and truncate() do
- not exist everywhere. All that remains is to delete old versions
- of the random data file (done at the end). */
-#if 0
- out=fopen(file,"rb+");
- if (out == NULL && errno != ENOENT)
- goto err;
-#endif
+
+#if defined(O_CREAT) && !defined(WIN32)
+ /* For some reason Win32 can't write to files created this way */
+
+ /* chmod(..., 0600) is too late to protect the file,
+ * permissions should be restrictive from the start */
+ int fd = open(file, O_CREAT, 0600);
+ if (fd != -1)
+ out = fdopen(fd, "wb");
#endif
-
if (out == NULL)
- {
-#if defined O_CREAT && defined O_EXCL
- /* chmod(..., 0600) is too late to protect the file,
- * permissions should be restrictive from the start */
- int fd = open(file, O_CREAT | O_EXCL, 0600);
- if (fd != -1)
- out = fdopen(fd, "wb");
- else /* the open(...) reportedly fails on Win98 w/ VisualC */
- out = fopen(file,"wb");
-#else
out = fopen(file,"wb");
-#endif
- }
- if (out == NULL)
- {
- err=1;
- goto err;
- }
+ if (out == NULL) goto err;
+
#ifndef NO_CHMOD
chmod(file,0600);
#endif
i=(n > BUFSIZE)?BUFSIZE:n;
n-=BUFSIZE;
if (RAND_bytes(buf,i) <= 0)
- err=1;
+ rand_err=1;
i=fwrite(buf,1,i,out);
if (i <= 0)
{
}
ret+=i;
if (n <= 0) break;
- }
+ }
#ifdef VMS
- /* We may have updated an existing file using mode "rb+",
- * now remove any old extra bytes */
-#if 0
- if (ret > 0)
- ftruncate(fileno(out), ret);
-#else
/* Try to delete older versions of the file, until there aren't
any */
{
char *tmpf;
- tmpf = Malloc(strlen(file) + 4); /* to add ";-1" and a nul */
+ tmpf = OPENSSL_malloc(strlen(file) + 4); /* to add ";-1" and a nul */
if (tmpf)
{
strcpy(tmpf, file);
some point... */
}
}
-#endif
-#endif
+#endif /* VMS */
fclose(out);
memset(buf,0,BUFSIZE);
err:
- return(err ? -1 : ret);
+ return (rand_err ? -1 : ret);
}
-const char *RAND_file_name(char *buf, int size)
+const char *RAND_file_name(char *buf, size_t size)
{
- char *s;
+ char *s=NULL;
char *ret=NULL;
- s=getenv("RANDFILE");
+ if (OPENSSL_issetugid() == 0)
+ s=getenv("RANDFILE");
if (s != NULL)
{
strncpy(buf,s,size-1);
}
else
{
- s=getenv("HOME");
- if (s == NULL) return(RFILE);
- if (((int)(strlen(s)+strlen(RFILE)+2)) > size)
- return(RFILE);
- strcpy(buf,s);
+ if (OPENSSL_issetugid() == 0)
+ s=getenv("HOME");
+#ifdef DEFAULT_HOME
+ if (s == NULL)
+ {
+ s = DEFAULT_HOME;
+ }
+#endif
+ if (s != NULL && (strlen(s)+strlen(RFILE)+2 < size))
+ {
+ strcpy(buf,s);
#ifndef VMS
- strcat(buf,"/");
+ strcat(buf,"/");
#endif
- strcat(buf,RFILE);
- ret=buf;
+ strcat(buf,RFILE);
+ ret=buf;
+ }
+ else
+ buf[0] = '\0'; /* no file name */
}
return(ret);
}