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Test for (fd < 0) before trying to FD_SET it
[ghc-hetmet.git]
/
rts
/
posix
/
Select.c
diff --git
a/rts/posix/Select.c
b/rts/posix/Select.c
index
d36e122
..
932fc79
100644
(file)
--- a/
rts/posix/Select.c
+++ b/
rts/posix/Select.c
@@
-156,7
+156,7
@@
awaitEvent(rtsBool wait)
case BlockedOnRead:
{
int fd = tso->block_info.fd;
case BlockedOnRead:
{
int fd = tso->block_info.fd;
- if (fd >= (int)FD_SETSIZE) {
+ if ((fd >= (int)FD_SETSIZE) || (fd < 0)) {
barf("awaitEvent: descriptor out of range");
}
maxfd = (fd > maxfd) ? fd : maxfd;
barf("awaitEvent: descriptor out of range");
}
maxfd = (fd > maxfd) ? fd : maxfd;
@@
-167,7
+167,7
@@
awaitEvent(rtsBool wait)
case BlockedOnWrite:
{
int fd = tso->block_info.fd;
case BlockedOnWrite:
{
int fd = tso->block_info.fd;
- if (fd >= (int)FD_SETSIZE) {
+ if ((fd >= (int)FD_SETSIZE) || (fd < 0)) {
barf("awaitEvent: descriptor out of range");
}
maxfd = (fd > maxfd) ? fd : maxfd;
barf("awaitEvent: descriptor out of range");
}
maxfd = (fd > maxfd) ? fd : maxfd;