/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
#ifdef OPENSSL_SYS_VMS
# include <unixio.h>
#endif
-#ifndef NO_SYS_TYPES_H
-# include <sys/types.h>
-#endif
+#include <sys/types.h>
#ifndef OPENSSL_NO_POSIX_IO
# include <sys/stat.h>
# include <fcntl.h>
+# ifdef _WIN32
+# include <windows.h>
+# include <io.h>
+# define stat _stat
+# define chmod _chmod
+# define open _open
+# define fdopen _fdopen
+# define fstat _fstat
+# define fileno _fileno
+# endif
#endif
/*
# define S_ISREG(m) ((m) & S_IFREG)
# endif
-#ifdef _WIN32
-# define stat _stat
-# define chmod _chmod
-# define open _open
-# define fdopen _fdopen
-#endif
-
#define RAND_FILE_SIZE 1024
#define RFILE ".rnd"
if (bytes == 0)
return 0;
-#ifndef OPENSSL_NO_POSIX_IO
- if (stat(file, &sb) < 0 || !S_ISREG(sb.st_mode)) {
- RANDerr(RAND_F_RAND_LOAD_FILE, RAND_R_NOT_A_REGULAR_FILE);
+ if ((in = openssl_fopen(file, "rb")) == NULL) {
+ RANDerr(RAND_F_RAND_LOAD_FILE, RAND_R_CANNOT_OPEN_FILE);
ERR_add_error_data(2, "Filename=", file);
return -1;
}
-#endif
- if ((in = openssl_fopen(file, "rb")) == NULL) {
- RANDerr(RAND_F_RAND_LOAD_FILE, RAND_R_CANNOT_OPEN_FILE);
+
+#ifndef OPENSSL_NO_POSIX_IO
+ if (fstat(fileno(in), &sb) < 0) {
+ RANDerr(RAND_F_RAND_LOAD_FILE, RAND_R_INTERNAL_ERROR);
ERR_add_error_data(2, "Filename=", file);
+ fclose(in);
return -1;
}
+ if (!S_ISREG(sb.st_mode) && bytes < 0)
+ bytes = 256;
+#endif
+ /*
+ * On VMS, setbuf() will only take 32-bit pointers, and a compilation
+ * with /POINTER_SIZE=64 will give off a MAYLOSEDATA2 warning here.
+ * However, we trust that the C RTL will never give us a FILE pointer
+ * above the first 4 GB of memory, so we simply turn off the warning
+ * temporarily.
+ */
+#if defined(OPENSSL_SYS_VMS) && defined(__DECC)
+# pragma environment save
+# pragma message disable maylosedata2
+#endif
+ /*
+ * Don't buffer, because even if |file| is regular file, we have
+ * no control over the buffer, so why would we want a copy of its
+ * contents lying around?
+ */
+ setbuf(in, NULL);
+#if defined(OPENSSL_SYS_VMS) && defined(__DECC)
+# pragma environment restore
+#endif
+
for ( ; ; ) {
if (bytes > 0)
n = (bytes < RAND_FILE_SIZE) ? (int)bytes : RAND_FILE_SIZE;
else
n = RAND_FILE_SIZE;
i = fread(buf, 1, n, in);
- if (i <= 0)
+#ifdef EINTR
+ if (ferror(in) && errno == EINTR){
+ clearerr(in);
+ if (i == 0)
+ continue;
+ }
+#endif
+ if (i == 0)
break;
+
RAND_add(buf, i, (double)i);
ret += i;
#endif
/* Collect enough random data. */
- if (RAND_bytes(buf, (int)sizeof(buf)) != 1)
+ if (RAND_priv_bytes(buf, (int)sizeof(buf)) != 1)
return -1;
#if defined(O_CREAT) && !defined(OPENSSL_NO_POSIX_IO) && \
}
}
#else
- if (OPENSSL_issetugid() != 0) {
- use_randfile = 0;
- } else if ((s = getenv("RANDFILE")) == NULL || *s == '\0') {
+ if ((s = ossl_safe_getenv("RANDFILE")) == NULL || *s == '\0') {
use_randfile = 0;
- s = getenv("HOME");
+ s = ossl_safe_getenv("HOME");
}
#endif