S_IFBLK and S_IFCHR may not exist in some places (like Windows), so

let's check for those macros, and if they aren't defined, let's assume
there aren't Unixly devices on this platform.
This commit is contained in:
Richard Levitte 2004-01-26 23:45:32 +00:00
parent 27b2b78f90
commit 4de65cbc06

View File

@ -110,6 +110,7 @@ int RAND_load_file(const char *file, long bytes)
in=fopen(file,"rb");
if (in == NULL) goto err;
#if defined(S_IFBLK) && !defined(S_IFCHR)
if (sb.st_mode & (S_IFBLK | S_IFCHR)) {
/* this file is a device. we don't want read an infinite number
* of bytes from a random device, nor do we want to use buffered
@ -118,6 +119,7 @@ int RAND_load_file(const char *file, long bytes)
bytes = (bytes == -1) ? 2048 : bytes; /* ok, is 2048 enough? */
setvbuf(in, NULL, _IONBF, 0); /* don't do buffered reads */
}
#endif
for (;;)
{
if (bytes > 0)
@ -151,6 +153,7 @@ int RAND_write_file(const char *file)
i=stat(file,&sb);
if (i != -1) {
#if defined(S_IFBLK) && !defined(S_IFCHR)
if (sb.st_mode & (S_IFBLK | S_IFCHR)) {
/* this file is a device. we don't write back to it.
* we "succeed" on the assumption this is some sort
@ -159,6 +162,7 @@ int RAND_write_file(const char *file)
*/
return(1);
}
#endif
}
#if defined(O_CREAT) && !defined(OPENSSL_SYS_WIN32)