diff options
Diffstat (limited to 'lib/libc/rpc/rpc_dtablesize.c')
| -rw-r--r-- | lib/libc/rpc/rpc_dtablesize.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/lib/libc/rpc/rpc_dtablesize.c b/lib/libc/rpc/rpc_dtablesize.c index c4a2ac4..e448624 100644 --- a/lib/libc/rpc/rpc_dtablesize.c +++ b/lib/libc/rpc/rpc_dtablesize.c @@ -30,19 +30,34 @@ #if defined(LIBC_SCCS) && !defined(lint) /*static char *sccsid = "from: @(#)rpc_dtablesize.c 1.2 87/08/11 Copyr 1987 Sun Micro";*/ /*static char *sccsid = "from: @(#)rpc_dtablesize.c 2.1 88/07/29 4.0 RPCSRC";*/ -static char *rcsid = "$Id: rpc_dtablesize.c,v 1.1 1993/10/27 05:40:48 paul Exp $"; +static char *rcsid = "rpc_dtablesize.c,v 1.1 1994/08/07 18:36:02 wollman Exp"; #endif +#include <sys/types.h> + /* * Cache the result of getdtablesize(), so we don't have to do an * expensive system call every time. */ +/* + * XXX In FreeBSD 2.x, you can have the maximum number of open file + * descriptors be greater than FD_SETSIZE (which us 256 by default). + * This can lead to many RPC functions getting back an EINVAL from + * select() and bombing all over the place. + * + * You can apparently get select() to handle values larger than 256 + * by patching the kernel, but most people aren't likely to know + * that. Clamping this function at 256 is a kludge, but it'll have to + * do until select()'s descriptor table size can be adjusted dynamically. + */ _rpc_dtablesize() { static int size; if (size == 0) { size = getdtablesize(); + if (size > FD_SETSIZE) + size = FD_SETSIZE; } return (size); } |
