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

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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 23:46:03 +00:00
parent a1d37a96df
commit 3a5a176ea0
1 changed files with 4 additions and 0 deletions
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4
crypto/rand/randfile.c
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@ -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)