- stunnel-users - stunnel.org

Re: [stunnel-users] Problem with Stunnel Working fine on the firstconnection and not on subsequent connections
by Kevin A. McGrail 19 Nov '05

19 Nov '05

> I'd try to disable chroot and run stunnel under strace with "foreground = yes" option. Mike, When running in foreground, with or without chroot, things work as expected. Without foreground, it did not work. Two key differences on the logs for each: Output of "Cleaning up the signal pipe" prior to checking the libwrap permissions a finish line of "ssmtp finished (0 left)" instead of "ssmtp finished (-1 left)" (Yes, this is a dual processor box.) It looks like the key problem lies in the regerenation of the standalone mode. Is there a way with v4 to just use inetd to answer on port 465, negotiate and connect on port 25 on another host because perhaps that will avoid the issue. Regards, KAM 2005.11.19 13:07:51 LOG7[3893:1024]: Key file: /usr/local/ssl/certs/stunnel.pem 2005.11.19 13:07:51 LOG6[3893:1024]: file ulimit = 1024 (can be changed with 'ulimit -n') 2005.11.19 13:07:51 LOG6[3893:1024]: poll() used - no FD_SETSIZE limit for file descriptors 2005.11.19 13:07:51 LOG5[3893:1024]: 500 clients allowed 2005.11.19 13:07:51 LOG7[3893:1024]: FD 4 in non-blocking mode 2005.11.19 13:07:51 LOG7[3893:1024]: FD 5 in non-blocking mode 2005.11.19 13:07:51 LOG7[3893:1024]: FD 6 in non-blocking mode 2005.11.19 13:07:51 LOG7[3893:1024]: SO_REUSEADDR option set on accept socket 2005.11.19 13:07:51 LOG7[3893:1024]: ssmtp bound to 0.0.0.0:465 2005.11.19 13:07:51 LOG7[3893:1024]: Created pid file /stunnel.pid [ed: 1st email] 2005.11.19 13:08:32 LOG7[3893:1024]: ssmtp accepted FD=7 from 66.149.103.32:3130 2005.11.19 13:08:32 LOG7[3898:1026]: ssmtp started 2005.11.19 13:08:32 LOG7[3898:1026]: FD 7 in non-blocking mode 2005.11.19 13:08:32 LOG7[3898:1026]: TCP_NODELAY option set on local socket 2005.11.19 13:08:32 LOG7[3898:1026]: FD 10 in non-blocking mode 2005.11.19 13:08:32 LOG7[3898:1026]: FD 11 in non-blocking mode 2005.11.19 13:08:32 LOG7[3893:1024]: Cleaning up the signal pipe 2005.11.19 13:08:32 LOG7[3898:1026]: Connection from 66.149.103.32:3130 permitted by libwrap 2005.11.19 13:08:32 LOG5[3898:1026]: ssmtp connected from 66.149.103.32:3130 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): before/accept initialization 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): SSLv3 read client hello A 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): SSLv3 write server hello A 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): SSLv3 write certificate A 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): SSLv3 write server done A 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): SSLv3 flush data 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): SSLv3 read client key exchange A 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): SSLv3 read finished A 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): SSLv3 write change cipher spec A 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): SSLv3 write finished A 2005.11.19 13:08:32 LOG7[3898:1026]: SSL state (accept): SSLv3 flush data 2005.11.19 13:08:32 LOG7[3898:1026]: 1 items in the session cache 2005.11.19 13:08:32 LOG7[3898:1026]: 0 client connects (SSL_connect()) 2005.11.19 13:08:32 LOG7[3898:1026]: 0 client connects that finished 2005.11.19 13:08:32 LOG7[3898:1026]: 0 client renegotiatations requested 2005.11.19 13:08:32 LOG7[3898:1026]: 1 server connects (SSL_accept()) 2005.11.19 13:08:32 LOG7[3898:1026]: 1 server connects that finished 2005.11.19 13:08:32 LOG7[3898:1026]: 0 server renegotiatiations requested 2005.11.19 13:08:32 LOG7[3898:1026]: 0 session cache hits 2005.11.19 13:08:32 LOG7[3898:1026]: 1 session cache misses 2005.11.19 13:08:32 LOG7[3898:1026]: 0 session cache timeouts 2005.11.19 13:08:32 LOG6[3898:1026]: SSL accepted: new session negotiated 2005.11.19 13:08:32 LOG6[3898:1026]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2005.11.19 13:08:32 LOG7[3898:1026]: FD 10 in non-blocking mode 2005.11.19 13:08:32 LOG7[3898:1026]: ssmtp connecting 10.10.10.30:25 2005.11.19 13:08:32 LOG7[3898:1026]: connect_wait: waiting 10 seconds 2005.11.19 13:08:32 LOG7[3898:1026]: connect_wait: connected 2005.11.19 13:08:32 LOG7[3898:1026]: Remote FD=10 initialized 2005.11.19 13:08:32 LOG7[3898:1026]: TCP_NODELAY option set on remote socket 2005.11.19 13:08:33 LOG7[3898:1026]: Socket closed on read 2005.11.19 13:08:33 LOG7[3898:1026]: SSL write shutdown 2005.11.19 13:08:33 LOG7[3898:1026]: SSL alert (write): warning: close notify 2005.11.19 13:08:33 LOG7[3898:1026]: SSL_shutdown retrying 2005.11.19 13:08:33 LOG7[3898:1026]: SSL doesn't need to read or write 2005.11.19 13:08:33 LOG7[3898:1026]: SSL socket closed on SSL_read 2005.11.19 13:08:33 LOG7[3898:1026]: Socket write shutdown 2005.11.19 13:08:33 LOG5[3898:1026]: Connection closed: 834 bytes sent to SSL, 1358 bytes sent to socket 2005.11.19 13:08:33 LOG7[3898:1026]: ssmtp finished (0 left) [ed: 2nd email] 2005.11.19 13:08:40 LOG7[3893:1024]: ssmtp accepted FD=7 from 66.149.103.32:3137 2005.11.19 13:08:40 LOG7[3900:2050]: ssmtp started 2005.11.19 13:08:40 LOG7[3900:2050]: FD 7 in non-blocking mode 2005.11.19 13:08:40 LOG7[3900:2050]: TCP_NODELAY option set on local socket 2005.11.19 13:08:40 LOG7[3900:2050]: FD 10 in non-blocking mode 2005.11.19 13:08:40 LOG7[3900:2050]: FD 11 in non-blocking mode 2005.11.19 13:08:40 LOG7[3893:1024]: Cleaning up the signal pipe 2005.11.19 13:08:40 LOG7[3900:2050]: Connection from 66.149.103.32:3137 permitted by libwrap 2005.11.19 13:08:40 LOG5[3900:2050]: ssmtp connected from 66.149.103.32:3137 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): before/accept initialization 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): SSLv3 read client hello A 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): SSLv3 write server hello A 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): SSLv3 write certificate A 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): SSLv3 write server done A 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): SSLv3 flush data 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): SSLv3 read client key exchange A 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): SSLv3 read finished A 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): SSLv3 write change cipher spec A 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): SSLv3 write finished A 2005.11.19 13:08:40 LOG7[3900:2050]: SSL state (accept): SSLv3 flush data 2005.11.19 13:08:40 LOG7[3900:2050]: 2 items in the session cache 2005.11.19 13:08:40 LOG7[3900:2050]: 0 client connects (SSL_connect()) 2005.11.19 13:08:40 LOG7[3900:2050]: 0 client connects that finished 2005.11.19 13:08:40 LOG7[3900:2050]: 0 client renegotiatations requested 2005.11.19 13:08:40 LOG7[3900:2050]: 2 server connects (SSL_accept()) 2005.11.19 13:08:40 LOG7[3900:2050]: 2 server connects that finished 2005.11.19 13:08:40 LOG7[3900:2050]: 0 server renegotiatiations requested 2005.11.19 13:08:40 LOG7[3900:2050]: 0 session cache hits 2005.11.19 13:08:40 LOG7[3900:2050]: 2 session cache misses 2005.11.19 13:08:40 LOG7[3900:2050]: 0 session cache timeouts 2005.11.19 13:08:40 LOG6[3900:2050]: SSL accepted: new session negotiated 2005.11.19 13:08:40 LOG6[3900:2050]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2005.11.19 13:08:40 LOG7[3900:2050]: FD 10 in non-blocking mode 2005.11.19 13:08:40 LOG7[3900:2050]: ssmtp connecting 10.10.10.30:25 2005.11.19 13:08:40 LOG7[3900:2050]: connect_wait: waiting 10 seconds 2005.11.19 13:08:40 LOG7[3900:2050]: connect_wait: connected 2005.11.19 13:08:40 LOG7[3900:2050]: Remote FD=10 initialized 2005.11.19 13:08:40 LOG7[3900:2050]: TCP_NODELAY option set on remote socket 2005.11.19 13:08:42 LOG7[3900:2050]: Socket closed on read 2005.11.19 13:08:42 LOG7[3900:2050]: SSL write shutdown 2005.11.19 13:08:42 LOG7[3900:2050]: SSL alert (write): warning: close notify 2005.11.19 13:08:42 LOG7[3900:2050]: SSL_shutdown retrying 2005.11.19 13:08:42 LOG7[3900:2050]: SSL doesn't need to read or write 2005.11.19 13:08:42 LOG7[3900:2050]: SSL socket closed on SSL_read 2005.11.19 13:08:42 LOG7[3900:2050]: Socket write shutdown 2005.11.19 13:08:42 LOG5[3900:2050]: Connection closed: 834 bytes sent to SSL, 1358 bytes sent to socket 2005.11.19 13:08:42 LOG7[3900:2050]: ssmtp finished (0 left) Without foreground, things do not continue past the first connection: 2005.11.19 13:10:32 LOG7[3910:1024]: ssmtp accepted FD=7 from 66.149.103.32:3268 2005.11.19 13:10:32 LOG7[3916:1026]: ssmtp started 2005.11.19 13:10:32 LOG7[3916:1026]: FD 7 in non-blocking mode 2005.11.19 13:10:32 LOG7[3916:1026]: TCP_NODELAY option set on local socket 2005.11.19 13:10:32 LOG7[3916:1026]: FD 10 in non-blocking mode 2005.11.19 13:10:32 LOG7[3916:1026]: FD 11 in non-blocking mode 2005.11.19 13:10:32 LOG7[3916:1026]: Connection from 66.149.103.32:3268 permitted by libwrap 2005.11.19 13:10:32 LOG5[3916:1026]: ssmtp connected from 66.149.103.32:3268 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): before/accept initialization 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): SSLv3 read client hello A 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): SSLv3 write server hello A 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): SSLv3 write certificate A 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): SSLv3 write server done A 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): SSLv3 flush data 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): SSLv3 read client key exchange A 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): SSLv3 read finished A 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): SSLv3 write change cipher spec A 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): SSLv3 write finished A 2005.11.19 13:10:32 LOG7[3916:1026]: SSL state (accept): SSLv3 flush data 2005.11.19 13:10:32 LOG7[3916:1026]: 1 items in the session cache 2005.11.19 13:10:32 LOG7[3916:1026]: 0 client connects (SSL_connect()) 2005.11.19 13:10:32 LOG7[3916:1026]: 0 client connects that finished 2005.11.19 13:10:32 LOG7[3916:1026]: 0 client renegotiatations requested 2005.11.19 13:10:32 LOG7[3916:1026]: 1 server connects (SSL_accept()) 2005.11.19 13:10:32 LOG7[3916:1026]: 1 server connects that finished 2005.11.19 13:10:32 LOG7[3916:1026]: 0 server renegotiatiations requested 2005.11.19 13:10:32 LOG7[3916:1026]: 0 session cache hits 2005.11.19 13:10:32 LOG7[3916:1026]: 1 session cache misses 2005.11.19 13:10:32 LOG7[3916:1026]: 0 session cache timeouts 2005.11.19 13:10:32 LOG6[3916:1026]: SSL accepted: new session negotiated 2005.11.19 13:10:32 LOG6[3916:1026]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2005.11.19 13:10:32 LOG7[3916:1026]: FD 10 in non-blocking mode 2005.11.19 13:10:32 LOG7[3916:1026]: ssmtp connecting 10.10.10.30:25 2005.11.19 13:10:32 LOG7[3916:1026]: connect_wait: waiting 10 seconds 2005.11.19 13:10:32 LOG7[3916:1026]: connect_wait: connected 2005.11.19 13:10:32 LOG7[3916:1026]: Remote FD=10 initialized 2005.11.19 13:10:32 LOG7[3916:1026]: TCP_NODELAY option set on remote socket 2005.11.19 13:10:33 LOG7[3916:1026]: Socket closed on read 2005.11.19 13:10:33 LOG7[3916:1026]: SSL write shutdown 2005.11.19 13:10:33 LOG7[3916:1026]: SSL alert (write): warning: close notify 2005.11.19 13:10:33 LOG7[3916:1026]: SSL_shutdown retrying 2005.11.19 13:10:33 LOG7[3916:1026]: SSL doesn't need to read or write 2005.11.19 13:10:34 LOG7[3916:1026]: SSL socket closed on SSL_read 2005.11.19 13:10:34 LOG7[3916:1026]: Socket write shutdown 2005.11.19 13:10:34 LOG5[3916:1026]: Connection closed: 834 bytes sent to SSL, 1353 bytes sent to socket 2005.11.19 13:10:34 LOG7[3916:1026]: ssmtp finished (-1 left)

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Problem with Stunnel Working fine on the first connection and not on subsequent connections
by Kevin A. McGrail 19 Nov '05

19 Nov '05

Have worked on this all day without any glimmer of hope and would appreciate help and feedback! Regards, KAM # Description of your problem. What programs are on which machines, and how are they attempting to communicate. What connections are you attempting to secure in SSL. I am having problems with the regeneration of stunnel on an old but fairly reliable machine. I am switching from v3 to v4 and it works absolutely perfectly ONCE. The second time it just hangs. # What version of Stunnel you're using - remember, Stunnel 4.x doesn't take Stunnel 3.x command line options! 4.x # The list of parameters you are using for stunnel, and if you are running it standalone or from inetd/xinetd. I am running it in standalone. My conf file is: cert = /usr/local/ssl/certs/stunnel.pem key = /usr/local/ssl/certs/stunnel.pem chroot = /usr/local/var/stunnel/ setuid = nobody setgid = nobody pid = /stunnel.pid socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 debug = 7 output = stunnel.log [ssmtp] accept = 465 connect = 10.10.10.30:25 # Output of "stunnel -f -D 7 <your-parameters>". Not sure this works on v4.X but here are the logs from the connection: 2005.11.18 19:17:56 LOG7[13166:1024]: ssmtp accepted FD=7 from 66.149.103.32:3542 2005.11.18 19:17:56 LOG7[13171:1026]: ssmtp started 2005.11.18 19:17:56 LOG7[13171:1026]: FD 7 in non-blocking mode 2005.11.18 19:17:56 LOG7[13171:1026]: TCP_NODELAY option set on local socket 2005.11.18 19:17:56 LOG7[13171:1026]: FD 10 in non-blocking mode 2005.11.18 19:17:56 LOG7[13171:1026]: FD 11 in non-blocking mode 2005.11.18 19:17:56 LOG7[13171:1026]: Connection from 66.149.103.32:3542 permitted by libwrap 2005.11.18 19:17:56 LOG5[13171:1026]: ssmtp connected from 66.149.103.32:3542 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): before/accept initialization 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): SSLv3 read client hello A 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): SSLv3 write server hello A 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): SSLv3 write certificate A 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): SSLv3 write server done A 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): SSLv3 flush data 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): SSLv3 read client key exchange A 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): SSLv3 read finished A 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): SSLv3 write change cipher spec A 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): SSLv3 write finished A 2005.11.18 19:17:56 LOG7[13171:1026]: SSL state (accept): SSLv3 flush data 2005.11.18 19:17:56 LOG7[13171:1026]: 1 items in the session cache 2005.11.18 19:17:56 LOG7[13171:1026]: 0 client connects (SSL_connect()) 2005.11.18 19:17:56 LOG7[13171:1026]: 0 client connects that finished 2005.11.18 19:17:56 LOG7[13171:1026]: 0 client renegotiatations requested 2005.11.18 19:17:56 LOG7[13171:1026]: 1 server connects (SSL_accept()) 2005.11.18 19:17:56 LOG7[13171:1026]: 1 server connects that finished 2005.11.18 19:17:56 LOG7[13171:1026]: 0 server renegotiatiations requested 2005.11.18 19:17:56 LOG7[13171:1026]: 0 session cache hits 2005.11.18 19:17:56 LOG7[13171:1026]: 1 session cache misses 2005.11.18 19:17:56 LOG7[13171:1026]: 0 session cache timeouts 2005.11.18 19:17:56 LOG6[13171:1026]: SSL accepted: new session negotiated 2005.11.18 19:17:56 LOG6[13171:1026]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2005.11.18 19:17:56 LOG7[13171:1026]: FD 10 in non-blocking mode 2005.11.18 19:17:56 LOG7[13171:1026]: ssmtp connecting 10.10.10.30:25 2005.11.18 19:17:56 LOG7[13171:1026]: connect_wait: waiting 10 seconds 2005.11.18 19:17:56 LOG7[13171:1026]: connect_wait: connected 2005.11.18 19:17:56 LOG7[13171:1026]: Remote FD=10 initialized 2005.11.18 19:17:56 LOG7[13171:1026]: TCP_NODELAY option set on remote socket 2005.11.18 19:17:58 LOG7[13171:1026]: Socket closed on read 2005.11.18 19:17:58 LOG7[13171:1026]: SSL write shutdown 2005.11.18 19:17:58 LOG7[13171:1026]: SSL alert (write): warning: close notify 2005.11.18 19:17:58 LOG7[13171:1026]: SSL_shutdown retrying 2005.11.18 19:17:58 LOG7[13171:1026]: SSL doesn't need to read or write 2005.11.18 19:17:58 LOG7[13171:1026]: SSL socket closed on SSL_read 2005.11.18 19:17:58 LOG7[13171:1026]: Socket write shutdown 2005.11.18 19:17:58 LOG5[13171:1026]: Connection closed: 827 bytes sent to SSL, 1362 bytes sent to socket 2005.11.18 19:17:58 LOG7[13171:1026]: ssmtp finished (-1 left) There is nothing more after this point # Output of "stunnel -V". I think you want -version: /usr/local/sbin/stunnel -version stunnel 4.14 on i686-pc-linux-gnu PTHREAD+POLL+IPv4+LIBWRAP with OpenSSL 0.9.7e 25 Oct 2004 Global options cert = /usr/local/etc/stunnel/stunnel.pem ciphers = ALL:!ADH:+RC4:@STRENGTH debug = 5 key = /usr/local/etc/stunnel/stunnel.pem pid = /usr/local/var/stunnel/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes session = 300 seconds verify = none Service-level options TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds # Output of "uname -a". Linux <removed> 2.2.26 #8 Fri Jul 16 00:42:34 EDT 2004 i686 unknown # Your libc version if you use Linux. 2.2.5 # Output of "gcc -v". Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/egcs-2.91.66/specs gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release) # Output of "openssl version" or "ssleay version" depending on your library. Subscribe to stunnel-users. OpenSSL 0.9.7e 25 Oct 2004

2 1

Stunnel Session Hangs
by Zachariah K Zachariah 17 Nov '05

17 Nov '05

Hi folks, I use stunnel-4.12 with openssl-0.9.7g to tunnel my CVS-pserver protocols. I have set up the local stunnel client to listen to port 22400 and to forward any connections on it to the cvs server that has the server side stunnel listening on port 22401 forwarding connections to the cvs-pserver on port 2401. Having set up thus, I can do a cvs login just fine. I can watch the negotiation happening using tcpdump. However when I try to check out a module from the repository, I see some files coming through but only to eventually hang. If I <Ctrl C> and try again, more files come in but hangs before the transaction is complete. I have to do this several time in order to download all the files to my local workspace. Upon checking the logs, I find that the hang occurs immediately after the message: 2005.10.28 14:21:53 LOG7[15095:67]: SSL_read returned WANT_READ: retrying 2005.10.28 14:21:53 LOG7[15095:67]: SSL_write returned WANT_WRITE: retrying 2005.10.28 14:21:53 LOG7[15095:67]: SSL_read returned WANT_READ: retrying I have included a snippet of the log file for reference. I have also included my stunnel.conf file. Sorry for the voluminous output. Can some one help me here? Thanks in advance. -ZZ ===============================STUNNEL.LOG================================== The full log file reads: 2005.10.28 14:20:44 LOG6[15095:64]: SSL accepted: previous session reused 2005.10.28 14:20:44 LOG7[15095:64]: FD 1 in non-blocking mode 2005.10.28 14:20:44 LOG7[15095:64]: smd-pserver connecting 127.0.0.1:2401 2005.10.28 14:20:44 LOG7[15095:64]: Remote FD=1 initialized 2005.10.28 14:20:44 LOG7[15095:64]: SSL_read returned WANT_READ: retrying 2005.10.28 14:20:44 LOG7[15095:64]: SSL_write returned WANT_WRITE: retrying 2005.10.28 14:20:44 LOG7[15095:64]: SSL_read returned WANT_READ: retrying 2005.10.28 14:20:50 LOG7[15095:64]: SSL alert (read): warning: close notify 2005.10.28 14:20:50 LOG7[15095:64]: SSL closed on SSL_read 2005.10.28 14:20:50 LOG7[15095:64]: Socket write shutdown 2005.10.28 14:20:50 LOG7[15095:64]: SSL write shutdown 2005.10.28 14:20:50 LOG7[15095:64]: SSL alert (write): warning: close notify 2005.10.28 14:20:50 LOG6[15095:64]: SSL_shutdown successfully sent close_notify 2005.10.28 14:20:50 LOG5[15095:64]: Connection closed: 73224 bytes sent to SSL, 4724 bytes sent to socket 2005.10.28 14:20:50 LOG7[15095:64]: smd-pserver finished (0 left) 2005.10.28 14:20:50 LOG5[15095:64]: stack_info: size=65536, current=5004 (7%), maximum=5004 (7%) 2005.10.28 14:20:50 LOG7[15095:64]: Context 64 closed 2005.10.28 14:20:51 LOG7[15095:1]: Context set: 64 (dropped) -> 1 2005.10.28 14:20:51 LOG7[15095:1]: Current context: 1 2005.10.28 14:20:51 LOG7[15095:1]: Releasing context 64 2005.10.28 14:20:51 LOG7[15095:1]: smd-pserver accepted FD=0 from 171.65.79.143:65521 2005.10.28 14:20:51 LOG7[15095:1]: Creating a new context 2005.10.28 14:20:51 LOG7[15095:1]: Context 65 created 2005.10.28 14:20:51 LOG7[15095:65]: Context swap: 1 -> 65 2005.10.28 14:20:51 LOG7[15095:65]: smd-pserver started 2005.10.28 14:20:51 LOG7[15095:65]: FD 0 in non-blocking mode 2005.10.28 14:20:51 LOG5[15095:65]: smd-pserver connected from 171.65.79.143:65521 2005.10.28 14:20:51 LOG7[15095:65]: SSL state (accept): before/accept initialization 2005.10.28 14:20:51 LOG7[15095:65]: SSL state (accept): SSLv3 read client hello A 2005.10.28 14:20:51 LOG7[15095:65]: SSL state (accept): SSLv3 write server hello A 2005.10.28 14:20:51 LOG7[15095:65]: SSL state (accept): SSLv3 write change cipher spec A 2005.10.28 14:20:51 LOG7[15095:65]: SSL state (accept): SSLv3 write finished A 2005.10.28 14:20:51 LOG7[15095:65]: SSL state (accept): SSLv3 flush data 2005.10.28 14:20:51 LOG7[15095:65]: SSL state (accept): SSLv3 read finished A 2005.10.28 14:20:51 LOG7[15095:65]: 6 items in the session cache 2005.10.28 14:20:51 LOG7[15095:65]: 0 client connects (SSL_connect()) 2005.10.28 14:20:51 LOG7[15095:65]: 0 client connects that finished 2005.10.28 14:20:51 LOG7[15095:65]: 0 client renegotiatations requested 2005.10.28 14:20:51 LOG7[15095:65]: 64 server connects (SSL_accept()) 2005.10.28 14:20:51 LOG7[15095:65]: 55 server connects that finished 2005.10.28 14:20:51 LOG7[15095:65]: 0 server renegotiatiations requested 2005.10.28 14:20:51 LOG7[15095:65]: 38 session cache hits 2005.10.28 14:20:51 LOG7[15095:65]: 0 session cache misses 2005.10.28 14:20:51 LOG7[15095:65]: 11 session cache timeouts 2005.10.28 14:20:51 LOG6[15095:65]: SSL accepted: previous session reused 2005.10.28 14:20:51 LOG7[15095:65]: FD 1 in non-blocking mode 2005.10.28 14:20:51 LOG7[15095:65]: smd-pserver connecting 127.0.0.1:2401 2005.10.28 14:20:51 LOG7[15095:65]: Remote FD=1 initialized 2005.10.28 14:20:51 LOG7[15095:65]: SSL_read returned WANT_READ: retrying 2005.10.28 14:20:51 LOG7[15095:65]: SSL_write returned WANT_WRITE: retrying 2005.10.28 14:20:51 LOG7[15095:65]: SSL_read returned WANT_READ: retrying 2005.10.28 14:20:57 LOG7[15095:65]: SSL alert (read): warning: close notify 2005.10.28 14:20:57 LOG7[15095:65]: SSL closed on SSL_read 2005.10.28 14:20:57 LOG7[15095:65]: Socket write shutdown 2005.10.28 14:20:57 LOG7[15095:65]: SSL write shutdown 2005.10.28 14:20:57 LOG7[15095:65]: SSL alert (write): warning: close notify 2005.10.28 14:20:57 LOG6[15095:65]: SSL_shutdown successfully sent close_notify 2005.10.28 14:20:57 LOG5[15095:65]: Connection closed: 73224 bytes sent to SSL, 4724 bytes sent to socket 2005.10.28 14:20:57 LOG7[15095:65]: smd-pserver finished (0 left) 2005.10.28 14:20:57 LOG5[15095:65]: stack_info: size=65536, current=5004 (7%), maximum=5004 (7%) 2005.10.28 14:20:57 LOG7[15095:65]: Context 65 closed 2005.10.28 14:20:58 LOG7[15095:1]: Context set: 65 (dropped) -> 1 2005.10.28 14:20:58 LOG7[15095:1]: Current context: 1 2005.10.28 14:20:58 LOG7[15095:1]: Releasing context 65 2005.10.28 14:20:58 LOG7[15095:1]: smd-pserver accepted FD=0 from 171.65.79.143:65523 2005.10.28 14:20:58 LOG7[15095:1]: Creating a new context 2005.10.28 14:20:58 LOG7[15095:1]: Context 66 created 2005.10.28 14:20:58 LOG7[15095:66]: Context swap: 1 -> 66 2005.10.28 14:20:58 LOG7[15095:66]: smd-pserver started 2005.10.28 14:20:58 LOG7[15095:66]: FD 0 in non-blocking mode 2005.10.28 14:20:58 LOG5[15095:66]: smd-pserver connected from 171.65.79.143:65523 2005.10.28 14:20:58 LOG7[15095:66]: SSL state (accept): before/accept initialization 2005.10.28 14:20:58 LOG7[15095:66]: SSL state (accept): SSLv3 read client hello A 2005.10.28 14:20:58 LOG7[15095:66]: SSL state (accept): SSLv3 write server hello A 2005.10.28 14:20:58 LOG7[15095:66]: SSL state (accept): SSLv3 write change cipher spec A 2005.10.28 14:20:58 LOG7[15095:66]: SSL state (accept): SSLv3 write finished A 2005.10.28 14:20:58 LOG7[15095:66]: SSL state (accept): SSLv3 flush data 2005.10.28 14:20:58 LOG7[15095:66]: SSL state (accept): SSLv3 read finished A 2005.10.28 14:20:58 LOG7[15095:66]: 6 items in the session cache 2005.10.28 14:20:58 LOG7[15095:66]: 0 client connects (SSL_connect()) 2005.10.28 14:20:58 LOG7[15095:66]: 0 client connects that finished 2005.10.28 14:20:58 LOG7[15095:66]: 0 client renegotiatations requested 2005.10.28 14:20:58 LOG7[15095:66]: 65 server connects (SSL_accept()) 2005.10.28 14:20:58 LOG7[15095:66]: 56 server connects that finished 2005.10.28 14:20:58 LOG7[15095:66]: 0 server renegotiatiations requested 2005.10.28 14:20:58 LOG7[15095:66]: 39 session cache hits 2005.10.28 14:20:58 LOG7[15095:66]: 0 session cache misses 2005.10.28 14:20:58 LOG7[15095:66]: 11 session cache timeouts 2005.10.28 14:20:58 LOG6[15095:66]: SSL accepted: previous session reused 2005.10.28 14:20:58 LOG7[15095:66]: FD 1 in non-blocking mode 2005.10.28 14:20:58 LOG7[15095:66]: smd-pserver connecting 127.0.0.1:2401 2005.10.28 14:20:58 LOG7[15095:66]: Remote FD=1 initialized 2005.10.28 14:20:58 LOG7[15095:66]: SSL_read returned WANT_READ: retrying 2005.10.28 14:20:58 LOG7[15095:66]: SSL_write returned WANT_WRITE: retrying 2005.10.28 14:20:58 LOG7[15095:66]: SSL_read returned WANT_READ: retrying 2005.10.28 14:21:50 LOG7[15095:66]: SSL alert (read): warning: close notify 2005.10.28 14:21:50 LOG7[15095:66]: SSL closed on SSL_read 2005.10.28 14:21:50 LOG7[15095:66]: Socket write shutdown 2005.10.28 14:21:50 LOG7[15095:66]: SSL write shutdown 2005.10.28 14:21:50 LOG7[15095:66]: SSL alert (write): warning: close notify 2005.10.28 14:21:50 LOG6[15095:66]: SSL_shutdown successfully sent close_notify 2005.10.28 14:21:50 LOG5[15095:66]: Connection closed: 73224 bytes sent to SSL, 4724 bytes sent to socket 2005.10.28 14:21:50 LOG7[15095:66]: smd-pserver finished (0 left) 2005.10.28 14:21:50 LOG5[15095:66]: stack_info: size=65536, current=5004 (7%), maximum=5004 (7%) 2005.10.28 14:21:50 LOG7[15095:66]: Context 66 closed 2005.10.28 14:21:52 LOG7[15095:1]: Context set: 66 (dropped) -> 1 2005.10.28 14:21:52 LOG7[15095:1]: Current context: 1 2005.10.28 14:21:52 LOG7[15095:1]: Releasing context 66 2005.10.28 14:21:52 LOG7[15095:1]: smd-pserver accepted FD=0 from 171.65.79.143:65525 2005.10.28 14:21:52 LOG7[15095:1]: Creating a new context 2005.10.28 14:21:52 LOG7[15095:1]: Context 67 created 2005.10.28 14:21:52 LOG7[15095:67]: Context swap: 1 -> 67 2005.10.28 14:21:52 LOG7[15095:67]: smd-pserver started 2005.10.28 14:21:52 LOG7[15095:67]: FD 0 in non-blocking mode 2005.10.28 14:21:52 LOG5[15095:67]: smd-pserver connected from 171.65.79.143:65525 2005.10.28 14:21:52 LOG7[15095:67]: SSL state (accept): before/accept initialization 2005.10.28 14:21:52 LOG7[15095:67]: SSL state (accept): SSLv3 read client hello A 2005.10.28 14:21:52 LOG7[15095:67]: SSL state (accept): SSLv3 write server hello A 2005.10.28 14:21:52 LOG7[15095:67]: SSL state (accept): SSLv3 write change cipher spec A 2005.10.28 14:21:52 LOG7[15095:67]: SSL state (accept): SSLv3 write finished A 2005.10.28 14:21:52 LOG7[15095:67]: SSL state (accept): SSLv3 flush data 2005.10.28 14:21:52 LOG7[15095:67]: SSL state (accept): SSLv3 read finished A 2005.10.28 14:21:52 LOG7[15095:67]: 6 items in the session cache 2005.10.28 14:21:52 LOG7[15095:67]: 0 client connects (SSL_connect()) 2005.10.28 14:21:52 LOG7[15095:67]: 0 client connects that finished 2005.10.28 14:21:52 LOG7[15095:67]: 0 client renegotiatations requested 2005.10.28 14:21:52 LOG7[15095:67]: 66 server connects (SSL_accept()) 2005.10.28 14:21:52 LOG7[15095:67]: 57 server connects that finished 2005.10.28 14:21:52 LOG7[15095:67]: 0 server renegotiatiations requested 2005.10.28 14:21:52 LOG7[15095:67]: 40 session cache hits 2005.10.28 14:21:52 LOG7[15095:67]: 0 session cache misses 2005.10.28 14:21:52 LOG7[15095:67]: 11 session cache timeouts 2005.10.28 14:21:52 LOG6[15095:67]: SSL accepted: previous session reused 2005.10.28 14:21:52 LOG7[15095:67]: FD 1 in non-blocking mode 2005.10.28 14:21:52 LOG7[15095:67]: smd-pserver connecting 127.0.0.1:2401 2005.10.28 14:21:52 LOG7[15095:67]: Remote FD=1 initialized 2005.10.28 14:21:53 LOG7[15095:67]: SSL_read returned WANT_READ: retrying 2005.10.28 14:21:53 LOG7[15095:67]: SSL_write returned WANT_WRITE: retrying 2005.10.28 14:21:53 LOG7[15095:67]: SSL_read returned WANT_READ: retrying ========================================================================== =========================STUNNEL.CONF====================================== ; Sample stunnel configuration file by Michal Trojnara 2002-2005 ; Some options used here may not be adequate for your particular configuration ; Please make sure you understand them (especially the effect of chroot jail) ;Delay DNS Lookups delay = yes ; Certificate/key is needed in server mode and optional in client mode cert = /tools/stunnel/4.12/etc/stunnel/stunnel.pem ;key = /tools/stunnel/4.12/etc/stunnel/mail.pem ; Some security enhancements for UNIX systems - comment them out on Win32 chroot = /tools/stunnel/4.12/var/stunnel/ setuid = cvsadmin setgid = cvs ; PID is created inside chroot jail pid = /stunnel.pid ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ;compression = rle ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ; Authentication stuff ;verify = 2 ; Don't forget to c_rehash CApath; CApath is located inside chroot jail: ;CApath = /certs ; It's often easier to use CAfile: ;CAfile = /tools/stunnel/4.12/etc/stunnel/certs.pem ; Don't forget to c_rehash CRLpath; CRLpath is located inside chroot jail: ;CRLpath = /crls ; Alternatively you can use CRLfile: ;CRLfile = /tools/stunnel/4.12/etc/stunnel/crls.pem ; Some debugging stuff useful for troubleshooting debug = 7 output = /tools/stunnel/current/var/stunnel/stunnel.log ; Use it for client mode ;client = yes ; Service-level configuration ;[pop3s] ;accept = 995 ;connect = 110 ;[imaps] ;accept = 993 ;connect = 143 ;[ssmtp] ;accept = 465 ;connect = 25 [pserver] accept = 22401 connect = 2401 TIMEOUTclose = 30 ; vim:ft=dosini

3 3

Strict.pm
by Jorge Abrines 17 Nov '05

17 Nov '05

Hi all, Once installed stunnel4 debian package, when I execute stunnel stunnel-mysql-client.conf (given sample) get following errors: Can't locate strict.pm in @INC (@INC contains: /etc/perl /usr/local/lib/perl/5.8.7 /usr/local/share/perl/5.8.7 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.8 /usr/share/perl/5.8 /usr/local/lib/site_perl .) at /usr/share/perl/5.8/AutoLoader.pm line 3. BEGIN failed--compilation aborted at /usr/share/perl/5.8/AutoLoader.pm line 3. Compilation failed in require at /usr/lib/perl/5.8/POSIX.pm line 7. BEGIN failed--compilation aborted at /usr/lib/perl/5.8/POSIX.pm line 7. Compilation failed in require at /usr/sbin/stunnel line 26. BEGIN failed--compilation aborted at /usr/sbin/stunnel line 26. Any ideas? Thanks in advance. Regards, Jorge.

2 2

Filesystem Hierarchy Standard 2.3
by Michal Trojnara 17 Nov '05

17 Nov '05

Dear Users, I tried to make stunnel more compatible with Filesystem Hierarchy Standard 2.3. Here is the current status: - configuration and certificates are in $prefix/etc/stunnel/ - binaries are in $prefix/sbin/ - default pid file is $prefix/var/run/stunnel.pid - manual is $prefix/man/man8/stunnel.8 - other docs are in $prefix/share/doc/stunnel/ - libstunnel is in $prefix/lib - chroot directory is setup in $prefix/var/lib/stunnel/ this directory is chmoded 1770 and group nogroup Your critical comments are welcome. Best regards, Mike

1 0

Visual studio compilation errors
by Jorge Abrines 17 Nov '05

17 Nov '05

Hi, After browsing all previous list messages I havent found information about an error I get compiling stunnel with visual studio. The errors appear in linking step with undefined symbol message: "undefined symbol: LNK2019 undefined symbol _exit_stunnel referenced in function _main_initialize". I also attach the Makefile.w32 changed to work with visual studio. Thanks in advance. Regards, Jorge. Makefile.w32 follows: # Simple Makefile.w32 for stunnel.exe by Michal Trojnara 1998-2000 # # Modified by Brian Hatch (bri(a)stunnel.org) # This makefile is only tested on the mingw compiler. Mingw # can successfully compile both openssl and stunnel. If you want # to use another compiler, give it a shot, and tell us how it went. # Modify this to point to your actual openssl compile directory # (You did already compile openssl, didn't you???) SSLDIR=..\..\openssl-0.9.7g DEFINES=-DUSE_WIN32 -DHAVE_OPENSSL # You may want to add some of the following flags # to the DEFINES definition above. # Location of default certificate file for -v option # -DCERT_FILE=\"/stunnel/certs/certs.pem\" # Location of default certificate directory for -v option # -DCERT_DIR=\"/stunnel/certs\" # Default directory for stunnel.pem file # -DPEM_DIR=\"/stunnel/private\" # Use the default certificate sources from your ssl library? (0==no, 1==yes) # -DSSLLIB_CS=0 CC=cl CFLAGS= $(DEFINES) /I"$(SSLDIR)inc32" LDFLAGS=/LIBPATH:"$(SSLDIR)\out" /LIBPATH:"$(SSLDIR)\out32dll" # LIBS=-L$(SSLDIR)/out -lssl -lcrypto -lwsock32 -lgdi32 # LIBS=-L$(SSLDIR)/out -leay32 -lssl32 -lwsock32 -lgdi32 LIBS="$(SSLDIR)\out32dll\libeay32.lib" "$(SSLDIR)\out32dll\ssleay32.lib" " wsock32.lib" "gdi32.lib" OBJS=stunnel.obj ssl.obj protocol.obj sthreads.obj log.obj stunnel.exe: $(OBJS) $(CC) $(LDFLAGS) -o stunnel.exe $(OBJS) $(LIBS) .c.obj: # {.}.c{_obj\}.obj:: $(CC) /c $(CFLAGS) $(INCPATH) @<< $< << clean: del *.o del stunnel.exe

2 2

CONNECT protocol negotiations
by Michal Trojnara 16 Nov '05

16 Nov '05

Dear Users, I think some of you could be interested in testing this new feature: ftp://stunnel.mirt.net/stunnel/stunnel-4.15b2.tar.gz ftp://stunnel.mirt.net/stunnel/stunnel-4.15b2-installer.exe Sample configuration: debug=7 client = yes [my_proxy] accept=1111 connect=proxy.example.com:8080 protocol=connect protocolHost=stunnel.mirt.net:443 protocolCredentials=username:password Best regards, Mike

1 0

Vasudha Upadhyaya is out of the office.
by vasudha.upadhyaya＠convergys.com 16 Nov '05

16 Nov '05

I will be out of the office starting 11/16/2005 and will not return until 12/05/2005. I will respond to your message when I return. -- "NOTICE: The information contained in this electronic mail transmission is intended by Convergys Corporation for the use of the named individual or entity to which it is directed and may contain information that is privileged or otherwise confidential. If you have received this electronic mail transmission in error, please delete it from your system without copying or forwarding it, and notify the sender of the error by reply email or by telephone (collect), so that the sender's address records can be corrected."

1 0

more stunnel problems
by Louis Young 10 Nov '05

10 Nov '05

Hi guys Ok, as I've said in a previous mail, I'm now merely trying to get the linux client to work. In the config file: [ssmtp] accept = 465 connect = 25 But now: louislaptop:/usr/local/etc/stunnel # telnet localhost 25 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 220 louislaptop.kpho.local ESMTP Postfix Works fine. I get the SMTP prompt. And now: louislaptop:/usr/local/etc/stunnel # telnet localhost 465 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. No SMTP prompt. In the log files: 2005.11.09 16:32:47 LOG5[32348:1]: stunnel 4.14 on i686-pc-linux-gnu UCONTEXT+POLL+IPv4 with OpenSSL 0.9.7g 11 Apr 2005 2005.11.09 16:32:47 LOG7[32348:1]: Snagged 64 random bytes from /root/.rnd 2005.11.09 16:32:47 LOG7[32348:1]: Wrote 1024 new random bytes to /root/.rnd 2005.11.09 16:32:47 LOG7[32348:1]: RAND_status claims sufficient entropy for the PRNG 2005.11.09 16:32:47 LOG6[32348:1]: PRNG seeded successfully 2005.11.09 16:32:47 LOG7[32348:1]: Certificate: /usr/local/etc/stunnel/stunnel.pem 2005.11.09 16:32:47 LOG7[32348:1]: Key file: /usr/local/etc/stunnel/stunnel.pem 2005.11.09 16:32:47 LOG6[32348:1]: file ulimit = 1024 (can be changed with 'ulimit -n') 2005.11.09 16:32:47 LOG6[32348:1]: poll() used - no FD_SETSIZE limit for file descriptors 2005.11.09 16:32:47 LOG5[32348:1]: 500 clients allowed 2005.11.09 16:32:47 LOG7[32348:1]: FD 4 in non-blocking mode 2005.11.09 16:32:47 LOG7[32348:1]: FD 5 in non-blocking mode 2005.11.09 16:32:47 LOG7[32348:1]: FD 6 in non-blocking mode 2005.11.09 16:32:47 LOG7[32348:1]: SO_REUSEADDR option set on accept socket 2005.11.09 16:32:47 LOG7[32348:1]: ssmtp bound to 0.0.0.0:7777 2005.11.09 16:32:47 LOG7[32349:1]: Created pid file /stunnel.pid 2005.11.09 16:32:47 LOG7[32349:0]: Waiting -1 second(s) for 2 file descriptor(s) 2005.11.09 16:32:53 LOG7[32349:0]: CONTEXT 1, FD=4, (IN)->() 2005.11.09 16:32:53 LOG7[32349:0]: CONTEXT 1, FD=6, (IN)->(IN) 2005.11.09 16:32:53 LOG7[32349:1]: ssmtp accepted FD=7 from 127.0.0.1:15767 2005.11.09 16:32:53 LOG7[32349:1]: Creating a new context 2005.11.09 16:32:53 LOG7[32349:1]: Context 2 created 2005.11.09 16:32:53 LOG7[32349:2]: Context swap: 1 -> 2 2005.11.09 16:32:53 LOG7[32349:2]: ssmtp started 2005.11.09 16:32:53 LOG7[32349:2]: FD 7 in non-blocking mode 2005.11.09 16:32:53 LOG7[32349:2]: TCP_NODELAY option set on local socket 2005.11.09 16:32:53 LOG5[32349:2]: ssmtp connected from 127.0.0.1:15767 2005.11.09 16:32:53 LOG7[32349:2]: SSL state (accept): before/accept initialization 2005.11.09 16:32:53 LOG7[32349:0]: Waiting 300 second(s) for 3 file descriptor(s) 2005.11.09 16:37:53 LOG7[32349:0]: CONTEXT 1, FD=4, (IN)->() 2005.11.09 16:37:53 LOG7[32349:0]: CONTEXT 1, FD=6, (IN)->() 2005.11.09 16:37:53 LOG7[32349:0]: CONTEXT 2, FD=7, (IN)->() 2005.11.09 16:37:53 LOG6[32349:2]: init_ssl: s_poll_wait timeout 2005.11.09 16:37:53 LOG7[32349:2]: ssmtp finished (0 left) 2005.11.09 16:37:53 LOG3[32349:2]: STACK_RESERVE is too high 2005.11.09 16:37:53 LOG7[32349:2]: Context 2 closed 2005.11.09 16:37:53 LOG7[32349:0]: Waiting -1 second(s) for 2 file descriptor(s) 2005.11.09 16:58:51 LOG5[32349:0]: Received signal 15; terminating 2005.11.09 16:58:51 LOG7[32349:0]: removing pid file /stunnel.pid Any ideas? -- Regards Louis Young Systems Administrator Kwikpay SA (Pty) Ltd

2 3

Re: [stunnel-users] Solaris: new_context, makecontext
by Hans Werner Strube 09 Nov '05

09 Nov '05

Hans Werner Strube wrote: > 1. Line 92 of sthreads.c, > (char *)ctx->ctx.uc_stack.ss_sp+=STACK_SIZE-8; > causes a compiler warning: "a cast does not yield an lvalue." > > 2. The Solaris <9 SPARC peculiarity concerning the third argument of > makecontext might be taken into account. > > Both would be fixed by the following changes. > ***Caveat: I do not know how the third argument of makecontext behaves > in Solaris x86 for versions <9 vs. >=9. Have no machine to test this. Sorry, my patch contained a bad error: ctx->stack+=STACK_SIZE-8 is, of course, nonsense, since ctx->stack must not be changed. My patch to version 4.15b1 should read instead: *** sthreads.c.15b1 Wed Nov 9 12:18:18 2005 --- sthreads.c Wed Nov 9 17:07:57 2005 *************** *** 78,85 **** return NULL; } ctx->ctx.uc_link=NULL; /* it should never happen */ ! ctx->ctx.uc_stack.ss_sp=ctx->stack; ! #if defined(__sgi) || (defined(CPU_SPARC) && ( \ defined(OS_SOLARIS2_0) || \ defined(OS_SOLARIS2_1) || \ defined(OS_SOLARIS2_2) || \ --- 78,84 ---- return NULL; } ctx->ctx.uc_link=NULL; /* it should never happen */ ! #if defined(CPU_SPARC) && ( \ defined(OS_SOLARIS2_0) || \ defined(OS_SOLARIS2_1) || \ defined(OS_SOLARIS2_2) || \ *************** *** 88,96 **** defined(OS_SOLARIS2_5) || \ defined(OS_SOLARIS2_6) || \ defined(OS_SOLARIS2_7) || \ ! defined(OS_SOLARIS2_8))) ! (char *)ctx->ctx.uc_stack.ss_sp+=STACK_SIZE-8; #endif ctx->ctx.uc_stack.ss_size=STACK_SIZE; ctx->ctx.uc_stack.ss_flags=0; --- 87,102 ---- defined(OS_SOLARIS2_5) || \ defined(OS_SOLARIS2_6) || \ defined(OS_SOLARIS2_7) || \ ! defined(OS_SOLARIS2_8)) ! #define MCTXA 2 ! #else ! #define MCTXA 1 #endif + #if defined(__sgi) || (MCTXA == 2) + ctx->ctx.uc_stack.ss_sp=ctx->stack+STACK_SIZE-8; + #else + ctx->ctx.uc_stack.ss_sp=ctx->stack; + #endif ctx->ctx.uc_stack.ss_size=STACK_SIZE; ctx->ctx.uc_stack.ss_flags=0; *************** *** 121,127 **** if(!ctx) return -1; s_log(LOG_DEBUG, "Context %ld created", ctx->id); ! makecontext(&ctx->ctx, (void(*)(void))cli, 1, arg); return 0; } --- 127,133 ---- if(!ctx) return -1; s_log(LOG_DEBUG, "Context %ld created", ctx->id); ! makecontext(&ctx->ctx, (void(*)(void))cli, MCTXA, arg); return 0; }

1 0