X-Git-Url: http://www.dolda2000.com/gitweb/?a=blobdiff_plain;f=lib%2Fmtio-select.c;h=6536c95a1599cd5c6a80422b30bea4556679ed23;hb=5f0c1cd631b9abcca90afe15cf129babba86f7f1;hp=eb84a454e2f3baa5f6f559648fab9381df2972f3;hpb=4d2dc22a9a68395a5788ae66c84ae0ced2d0e733;p=ashd.git

diff --git a/lib/mtio-select.c b/lib/mtio-select.c
index eb84a45..6536c95 100644
--- a/lib/mtio-select.c
+++ b/lib/mtio-select.c
@@ -18,6 +18,8 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
+#include <unistd.h>
 #include <errno.h>
 #include <sys/select.h>
 
@@ -44,6 +46,11 @@ int block(int fd, int ev, time_t to)
     struct blocker *bl;
     int rv;
     
+    if(fd >= FD_SETSIZE) {
+	flog(LOG_ERR, "tried to use more file descriptors than select() can handle: fd %i", fd);
+	errno = EMFILE;
+	return(-1);
+    }
     omalloc(bl);
     bl->fd = fd;
     bl->ev = ev;