Hi all,

I tried very simple program on native Plan9:

#include <u.h>
#include <libc.h>

void
main(int, char**)
{
int afd, lfd;
char adir[NETPATHLEN], ldir[NETPATHLEN];

afd = announce("tcp!*!20540", adir);
if (afd < 0)
sysfatal("listen: %r");

lfd = listen(adir, ldir);
if (lfd < 0)
sysfatal("listen: %r");

if (reject(lfd, ldir, "unauthorized") < 0)
sysfatal("reject: %r");

close(lfd);
close(afd);
exits(nil);
}

I dicovered that the funtion 'reject' fails:
term% 8.out
reject: unknown control request

In 'ratrace' listing I can really see the 'reject' function failure:
348 8.out Open 33a7 0xdfffe9bc/"/net/cs" 0x2 = 3 "" 1412926762174586973
1412926762174841785
348 8.out Pwrite 5577 3  0x7880/"tcp!*!20540" 11 -1 = 11 ""
1412926762186976342 1412926762187086984
348 8.out Seek 3391 0x7ab8 3 0x0 0 = 0 "" 1412926762198637769
1412926762198646989
348 8.out Pread 557f 3 0xdfffe9bc 255 -1 0xdfffe9bc/"/net/tcp/clone.20540"
255 -1 = 20 "" 1412926762200546351 1412926762200619275
348 8.out Close 1225 3 = 0 "" 1412926762221784602 1412926762221865069
348 8.out Open 33a7 0xdfffebe0/"/net/tcp/clone" 0x2 = 3 ""
1412926762223717492 1412926762223849089
348 8.out Pread 557f 3 0xdfffede9 246 -1 0xdfffede9/"4" 246 -1 = 1 ""
1412926762235853725 1412926762235866298
348 8.out Pwrite 5577 3  0xdfffece0/"announce.20540" 14 -1 = 14 ""
1412926762247454802 1412926762247479948
348 8.out Open 33a7 0xdfffede0/"/net/tcp/4/listen" 0x2 = 4 ""
1412926762259028218 1412926771821372908
348 8.out Pread 557f 4 0xdfffede9 246 -1 0xdfffede9/"6" 246 -1 = 1 ""
1412926771844967723 1412926771844984487
348 8.out Pwrite 5577 4  0xdfffedec/"reject.6.unauthorized" 21 -1 = -1
unknown control request 1412926771854330421 1412926771854347185
348 8.out Errstr 5587 0xdfffe914 128"" 128 = 0  1412926771871626615
1412926771871632483
348 8.out Errstr 5587 0xdfffe914 128"" 128 = 0 unknown control request
1412926771887234674 1412926771887239703
348 8.out Pwrite 5577 2  0xdfffe980/"reject:.unknown.control.request." 32
-1reject: unknown control request
 = 32 "" 1412926771918100040 1412926771932457957
348 8.out Open 33a7 0x7538/"#c/pid" 0x0 = 5 "" 1412926771947976329
1412926771948085295
348 8.out Pread 557f 5 0xdfffeaa0 20 -1 0xdfffeaa0/"........348." 20 -1 =
12 "" 1412926771963591547 1412926771963607473
348 8.out Close 1225 5 = 0 "" 1412926771979115786 1412926771979128359
348 8.out Exits 122d 0xdfffeadc/"reject: unknown control request"

Do you have any explanation?
Did I make some bug in the program?

Thanks in advance.

Pavel