# define chmod _chmod
# define open _open
# define fdopen _fdopen
+# define fstat _fstat
+# define fileno _fileno
# endif
#endif
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);
return -1;
}
+ if (!S_ISREG(sb.st_mode) && bytes < 0)
+ bytes = 256;
+#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);
+
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;