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http://bugzilla.mindrot.org/show_bug.cgi?id=628 Summary: Review usage of mysignal() vs signal() Product: Portable OpenSSH Version: 3.6.1p2 Platform: All OS/Version: OpenBSD Status: NEW Severity: normal Priority: P2 Component: Miscellaneous AssignedTo: openssh-bugs at mindrot.org Re...

Hi all, I've been running OpenSSH portable on NeXTstep 3.3 since version 2.5.something with no/little problems. 3.7.1p1 still compiles fine but sshd hangs at startup. I've tried to debug it but when stepping through sshd using gdb it segfaults in mysignal in bsd-misc.c instead of hanging. Before I dig any deeper into this I'd like to know if there's anybody else running openssh who is perhaps not/as well experiencing these problems. Is hanging/segfaulting in mysignal perhaps experienced on other platforms as well? -- bye, Michael a di...

Hello, I've been trying to get openssh working at our site recently, but have been running into these problems. In using the "release" version (openssh-2.3.0p1) we kept getting these broken pipe errors: zcat: stdout: Broken pipe Damien suggested we try out the snapshot versions, so I've been trying out the daily versions since last week. With the snapshots, the pipe problem

Greetings, I have a problem with OpenSSH -current and SCO 3.2v4.2, when I execute a remote command or exit from a session, the connection hangs, ( line 326 of serverloop.c). This problem only exists when using ssh2. server side debug (-d -d -d ): debug1: Received SIGCHLD. debug2: channel 0: read failed debug2: channel 0: close_read debug2: channel 0: input open -> drain debug2: channel 0:

...1); + if (count != 0 && wrerr == NO && (j = atomicio(write, ofd, bp->buf, count)) != count) { wrerr = YES; @@ -1079,140 +1060,17 @@ } static void -updateprogressmeter(int ignore) +updateprogressmeter(int done) { - int save_errno = errno; - - progressmeter(0); - mysignal(SIGALRM, updateprogressmeter); - alarm(PROGRESSTIME); - errno = save_errno; -} - -static int -foregroundproc(void) -{ - static pid_t pgrp = -1; - int ctty_pgrp; - - if (pgrp == -1) - pgrp = getpgrp(); + int save_errno = errno; -#ifdef HAVE_TCGETPGRP - return ((ctty_pgrp = tcgetpgrp(STDO...

...my dots are colored differently depending on if positive or negative and sized by sp.nc.bdrs.data$mwZ I have tried... dotplot(sporder ~ cvarorder | direct, data=sp.nc.bdrs.data, cex=abs(sp.nc.bdrs.data$mwZ * 0.05), xlab="climate variables", ylab="species",col= sp.nc.bdrs.data$mysign, scales = list(y = list(labels = as.character(spname),at = 1:12, cex = 0.5), x = list(labels = as.character(my.ylabel), at = 1:66, rot=90, cex = 0.5), alternating = 3)) This sizes my symbols correctly but colors all four conditional plots (direct = 'e', 'n', 's' & ...

This patch is against Cray patch against openssh-SNAP-20010710. Here a few notes about them: 1) rijndael does not work on cray due to the fact it is rooted in 32 bits. I looking for a fix, it may come form Wendy Palam. For now the cray default to the following cihpers for ssh version 2 ssh are: 3des-cbc,blowfish-cbc,cast128-cbc,arcfour 2) Crays don't have setitimer so I

...39;) + *p = ' '; + } + /* Remove trailing newline */ + *--p = '\0'; +} + +int +is_aix_password_change_required(void) +{ + return aix_password_change_required; +} + +void +do_aix_change_password(struct passwd *pw) +{ + pid_t pid; + int status; + mysig_t old_signal; + + old_signal = mysignal(SIGCHLD, SIG_DFL); + + if ((pid = fork()) == -1) + fatal("Couldn't fork: %s", strerror(errno)); + + if (pid == 0) { + setuid(pw->pw_uid); + execl("/usr/bin/passwd","passwd",pw->pw_name, + (char *)NULL); + } + + if (waitpid(pid, &status, 0) == -1) +...

...n", aixloginmsg); +#endif /* WITH_AIXAUTHENTICATE */ + +#ifdef WITH_AIXAUTHENTICATE + + retval = passwdexpired(pw->pw_name,&msg); + + if (msg && *msg) + printf("%s\n",msg); + + if (retval == 1) { + + pid_t pid; + int status; + mysig_t old_signal; + + old_signal = mysignal(SIGCHLD, SIG_DFL); + + if ((pid = fork()) == -1) + fatal("Couldn't fork: %s", strerror(errno)); + + if (pid == 0) { + setuid(pw->pw_uid); + execl("/usr/bin/passwd","passwd",pw->pw_name, + (char *)NULL); + } + + if (waitpid(pid, &status, 0)...

...r 2003 08:53 > To: Vikash Badal - PCS > Cc: 'openssh-unix-dev at mindrot.org' > Subject: Re: SCO 3.2v4.2 and OpenSSH -current --> connection hangs and > does no t close > > go into bsd-misc.c and comment out the define and try it > again. We should > be using mysignal by default now, but it may have > disagreeable results. > > - Ben > Commented out the #define signal (a,b) mysignal(a,b) in bsd-misc.h, recompiled ( make clean && make ) still the same problem exists: (gdb) wait_until_can_do_something (readsetp=0x7ffff8e4, writesetp=0x7...

...rig Tue Nov 27 02:32:50 2001 +++ sshpty.c Tue Nov 27 02:33:45 2001 @@ -252,6 +252,7 @@ int fd; #ifdef USE_VHANGUP void *old; + struct termios tio; #endif /* USE_VHANGUP */ #ifdef _CRAY @@ -310,6 +311,7 @@ #endif /* HAVE_NEWS4 */ #ifdef USE_VHANGUP old = mysignal(SIGHUP, SIG_IGN); + tcgetattr(*ttyfd,&tio); vhangup(); mysignal(SIGHUP, old); #endif /* USE_VHANGUP */ @@ -320,6 +322,7 @@ #ifdef USE_VHANGUP close(*ttyfd); *ttyfd = fd; + tcsetattr(*ttyfd,TCSANOW,&tio); #else /* USE_V...

...card: Ssh.bin diff -r -c openssh-3.1p1/serverloop.c openssh-3.1p1-peter/serverloop.c *** openssh-3.1p1/serverloop.c Fri Feb 8 12:07:17 2002 --- openssh-3.1p1-peter/serverloop.c Mon Mar 18 22:01:02 2002 *************** *** 673,679 **** /* We no longer want our SIGCHLD handler to be called. */ mysignal(SIGCHLD, SIG_DFL); ! wait_pid = waitpid(-1, &wait_status, 0); if (wait_pid == -1) packet_disconnect("wait: %.100s", strerror(errno)); else if (wait_pid != pid) --- 673,681 ---- /* We no longer want our SIGCHLD handler to be called. */ mysignal(SIGCHLD, SIG_DFL);...

...4.4.1-9+deb8u5 amd64 Xenstore command line utilities for Xen Best regards, Chris Keller -----Urspr?ngliche Nachricht----- Von: Debian Bug Tracking System [mailto:owner at bugs.debian.org] Gesendet: Dienstag, 19. April 2016 14:42 An: MySign AG - Infrastrcture <infrastructure at mysign.ch> Betreff: Bug#820862: Info received (AW: Bug#820862: Acknowledgement (xen-hypervisor-4.4-amd64: Xen VM on Jessie freezes often with INFO: task jbd2/xvda2-8:111 blocked for more than 120 seconds)) Thank you for the additional information you h...

...93] [<ffffffff81087fe0>] ? kthread_create_on_node+0x180/0x180 Copying and backuping the Dom0 results in no error! Best regards, Chris Keller -----Urspr?ngliche Nachricht----- Von: Debian Bug Tracking System [mailto:owner at bugs.debian.org] Gesendet: Mittwoch, 13. April 2016 11:06 An: MySign AG - Infrastrcture <infrastructure at mysign.ch> Betreff: Bug#820862: Acknowledgement (xen-hypervisor-4.4-amd64: Xen VM on Jessie freezes often with INFO: task jbd2/xvda2-8:111 blocked for more than 120 seconds) Thank you for filing a new Bug report with Debian. This is an automatically gen...

...atch, MONITOR_REQ_PTYCLEANUP, 1); + monitor_permit(mon_dispatch, MONITOR_REQ_PAM_CHAUTHTOK, 1); } for (;;) @@ -746,6 +754,56 @@ xfree(user); return (0); +} + +int +mm_answer_pam_chauthtok(int socket, Buffer *m) +{ + pid_t pid; + int ttyfd, status; + mysig_t old_signal; + + old_signal = mysignal(SIGCHLD, SIG_DFL); + + ttyfd = mm_receive_fd(socket); + debug3("%s: ttyfd=%d, ttyname=%s", __func__, ttyfd, ttyname(ttyfd)); + + if ((pid = fork()) == 0) { + /* acquire controlling tty */ + pty_make_controlling_tty(ttyfd, ttyname(ttyfd)); + + /* set up stdin, stdout and stderr */ +...

...card: Ssh.bin diff -r -c openssh-3.1p1/serverloop.c openssh-3.1p1-peter/serverloop.c *** openssh-3.1p1/serverloop.c Fri Feb 8 12:07:17 2002 --- openssh-3.1p1-peter/serverloop.c Mon Mar 18 22:01:02 2002 *************** *** 673,679 **** /* We no longer want our SIGCHLD handler to be called. */ mysignal(SIGCHLD, SIG_DFL); ! wait_pid = waitpid(-1, &wait_status, 0); if (wait_pid == -1) packet_disconnect("wait: %.100s", strerror(errno)); else if (wait_pid != pid) --- 673,681 ---- /* We no longer want our SIGCHLD handler to be called. */ mysignal(SIGCHLD, SIG_DFL);...

...0); #endif /* !HAVE_OSF_SIA */ +} + +/* + * Perform generic password change via tty. Like do_pam_chauthtok(), + * it throws a fatal error if the password can't be changed. + */ +int +do_tty_change_password(struct passwd *pw) +{ + pid_t pid; + int status; + mysig_t old_signal; + + old_signal = mysignal(SIGCHLD, SIG_DFL); + + if ((pid = fork()) == -1) + fatal("Couldn't fork: %s", strerror(errno)); + + if (pid == 0) { + permanently_set_uid(pw); + if (geteuid() == 0) + execl(PASSWD_PROGRAM_PATH, PASSWD_PROGRAM_PATH, + pw->pw_name, (char *)NULL); + else + execl(PASSW...

comments? alternatives: sigsetjmp(ugly) and pselect(not portable, available) drawback: additional filedescriptors. Index: serverloop.c =================================================================== RCS file: /home/markus/cvs/ssh/serverloop.c,v retrieving revision 1.82 diff -u -r1.82 serverloop.c --- serverloop.c 10 Oct 2001 22:18:47 -0000 1.82 +++ serverloop.c 11 Oct 2001 18:06:33 -0000 @@

...dif #endif /* !HAVE_OSF_SIA */ +} + +/* + * Perform generic password change via tty. Like do_pam_chauthtok(), + * it throws a fatal error if the password can't be changed. + */ +int +do_tty_change_password(struct passwd *pw) +{ + pid_t pid; + int status; + mysig_t old_signal; + + old_signal = mysignal(SIGCHLD, SIG_DFL); + + if ((pid = fork()) == -1) + fatal("Couldn't fork: %s", strerror(errno)); + + if (pid == 0) { + permanently_set_uid(pw); + if (geteuid() == 0) + execl(PASSWD_PROGRAM_PATH, PASSWD_PROGRAM_PATH, + pw->pw_name, (char *)NULL); + else + execl(PASSW...

..._PAM && !HAVE_OSF_SIA */ +} + +/* + * Perform generic password change via tty + * Like do_pam_chauthtok(), it throws a fatal error if the password can't be changed. + */ +void +do_tty_change_password(struct passwd *pw) +{ + pid_t pid; + int status; + mysig_t old_signal; + + old_signal = mysignal(SIGCHLD, SIG_DFL); + + if ((pid = fork()) == -1) + fatal("Couldn't fork: %s", strerror(errno)); + + if (pid == 0) { + setuid(pw->pw_uid); + if (geteuid() == 0) + execl(PASSWD_PROGRAM_PATH, "passwd", pw->pw_name, + (char *)NULL); + else + execl(PASSWD_P...