openssl/openssl-0.9.8a-use-poll.patch

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--- openssl-0.9.8a/crypto/rand/rand_unix.c.use-poll 2005-08-29 01:20:48.000000000 +0200
+++ openssl-0.9.8a/crypto/rand/rand_unix.c 2005-11-08 01:28:35.000000000 +0100
@@ -125,6 +125,7 @@
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
+#include <sys/poll.h>
#ifdef __OpenBSD__
int RAND_poll(void)
@@ -157,6 +158,7 @@
struct stat randomstats[sizeof(randomfiles)/sizeof(randomfiles[0])];
int fd;
size_t i;
+ struct pollfd pfd;
#endif
#ifdef DEVRANDOM_EGD
static const char *egdsockets[] = { DEVRANDOM_EGD, NULL };
@@ -184,11 +186,10 @@
#endif
)) >= 0)
{
- struct timeval t = { 0, 10*1000 }; /* Spend 10ms on
+ int t = 10; /* Spend 10ms on
each file. */
int r;
size_t j;
- fd_set fset;
struct stat *st=&randomstats[i];
/* Avoid using same input... Used to be O_NOFOLLOW
@@ -204,30 +205,25 @@
do
{
- FD_ZERO(&fset);
- FD_SET(fd, &fset);
- r = -1;
-
- if (select(fd+1,&fset,NULL,NULL,&t) < 0)
- t.tv_usec=0;
- else if (FD_ISSET(fd, &fset))
+ pfd.fd = fd;
+ pfd.events = POLLIN;
+ pfd.revents = 0;
+
+ if ((r=poll(&pfd,1,t)) == 0)
+ t = 0;
+ else if (r > 0 && (pfd.revents & POLLIN))
{
r=read(fd,(unsigned char *)tmpbuf+n,
ENTROPY_NEEDED-n);
if (r > 0)
n += r;
}
-
- /* Some Unixen will update t, some
- won't. For those who won't, give
- up here, otherwise, we will do
- this once again for the remaining
- time. */
- if (t.tv_usec == 10*1000)
- t.tv_usec=0;
+ /* we don't know how big part of the timeout elapsed
+ wait half the original timeout next time */
+ t >>= 1;
}
while ((r > 0 || (errno == EINTR || errno == EAGAIN))
- && t.tv_usec != 0 && n < ENTROPY_NEEDED);
+ && t != 0 && n < ENTROPY_NEEDED);
close(fd);
}