search for: nfdbit

...+790,21 @@ /* If we got a packet, return it. */ if (type != SSH_MSG_NONE) { xfree(setp); + idletimeout_check(type); return type; } /* * Otherwise, wait for some data to arrive, add it to the * buffer, and try again. */ - memset(setp, 0, howmany(connection_in + 1, NFDBITS) * - sizeof(fd_mask)); - FD_SET(connection_in, setp); - - /* Wait for some data to arrive. */ - while (select(connection_in + 1, setp, NULL, NULL, NULL) == -1 && - (errno == EAGAIN || errno == EINTR)) - ; + do { + memset(setp, 0, howmany(connection_in + 1, NFDBI...

...have compiled openssh on QNX RTP 6.1, "x86-pc-nto-qnx". Some things to note if anyone should want to update configure and include support for this platform: * The enthropy device is normally /dev/random * INTXX and other similar types are in <stdint.h> * macro howmany, constant NFDBITS and type fd_mask need to be defined. How this can be done has been discussed earlier on this list. * USE_PIPES needs to be defined - socketpair() doesn't seem to be implemented yet. * file /usr/adm/lastlog needs to be created, if it hasn't been already - touch is sufficient. I hope some...

https://bugzilla.mindrot.org/show_bug.cgi?id=2085 Bug ID: 2085 Summary: fd_mask and howmany are not defined in Android Classification: Unclassified Product: Portable OpenSSH Version: 6.2p1 Hardware: All OS: Linux Status: NEW Severity: minor Priority: P5 Component: Build system

...other data is processed until this returns, so this function should not * be used during the interactive session. @@ -1033,6 +1044,9 @@ DBG(debug("packet_read()")); + connclosed = 0; + conntimedout = 0; + setp = (fd_set *)xcalloc(howmany(active_state->connection_in + 1, NFDBITS), sizeof(fd_mask)); @@ -1087,6 +1101,7 @@ } } if (ret == 0) { + conntimedout = 1; logit("Connection to %.200s timed out while " "waiting to read", get_remote_ipaddr()); cleanup_exit(255); @@ -1098,11 +1113,12 @@ sizeof(buf), &cont);...

Dear OpenSSH porting developers, finally I succeded in porting OpenSSH to QNX 4. To get things going I had to take over some definitions from Linux' include files, since they are not available under QNX (e.g. the howmany makro, NFDBITS, the lastlog structure). With this email I send a patch with all my changes as well as the file "qnx-term.h" which I created because IXANY and ONLCR are not supported under QNX. Please include my changes into the OpenSSH portable distribution to allow others to install OpenSSH under Q...

..., optval, rc; + + if (timeout <= 0) + return(connect(sockfd, serv_addr, addrlen)); + + if (fcntl(sockfd, F_SETFL, O_NONBLOCK) < 0) + return -1; + + rc = connect(sockfd, serv_addr, addrlen); + if (rc == 0) + return 0; + if (errno != EINPROGRESS) + return -1; + + fdsetsz = howmany(sockfd+1, NFDBITS) * sizeof(fd_mask); + fdset = (fd_set *)xmalloc(fdsetsz); + memset(fdset, 0, fdsetsz); + FD_SET(sockfd, fdset); + tv.tv_sec = timeout; + tv.tv_usec = 0; + rc=select(sockfd+1, NULL, fdset, NULL, &tv); + + switch(rc) { + case 0: + errno = ETIMEDOUT; + case -1: + return -1; + break; + case 1:...

.../* * Allocate/update select bitmasks and add any bits relevant to channels in * select bitmasks. */ --- channels.c~ Wed Jun 13 15:18:05 2001 +++ channels.c Thu Jul 12 08:32:53 2001 @@ -1160,6 +1160,14 @@ } void +channel_zero_set(fd_set *setp, int maxfdp) +{ + u_int sz = howmany(maxfdp+1, NFDBITS) * sizeof(fd_mask); + + memset(setp, 0, sz); +} + +void channel_prepare_select(fd_set **readsetp, fd_set **writesetp, int *maxfdp, int rekeying) { @@ -1178,8 +1186,8 @@ *writesetp = xmalloc(sz); *maxfdp = n; } - memset(*readsetp, 0, sz); - memset(*writesetp, 0, sz); + channel_zero_...

..._start_main (in /lib/libc-2.3.2.so) ==1059== by 0x804C560: (within /usr/sbin/sshd) ==1059== Address 0x41363BFC is 0 bytes after a block of size 4 alloc'd ==1058== checked 5467064 bytes. This turns out to be around line 1261 in sshd.c: fd_set *fdset; ...snip... fdsetsz = howmany(maxfd+1, NFDBITS) * sizeof(fd_mask); fdset = (fd_set *)xmalloc(fdsetsz); ...snip... ret = select(maxfd+1, fdset, NULL, NULL, NULL); My question is why don't you use: fdsetsz = sizeof( fd_set ); The 2.4.20 Linux kernel defines fd_set like this: #define __NFDBITS (8 * sizeof(unsigned long))...

On Sat, Jan 7, 2017 at 2:30 PM, Peter Moody <mindrot at hda3.com> wrote: > so I spent a bit of time looking at this and it seems like the only > way to go, at least if I want to keep it in ssh_connect_direct(), is > to use pthreads. further, it seems like getting that accepted is > something of a long shot: Sorry, pthreads is a non-starter. I would have thought that using

...rypto has the required support. * A number of portability fixes for Android: * Don't try to use lastlog on Android; bz#2111 * Fall back to using openssl's DES_crypt function on platorms that don't have a native crypt() function; bz#2112 * Test for fd_mask, howmany and NFDBITS rather than trying to enumerate the plaforms that don't have them. bz#2085 * Replace S_IWRITE, which isn't standardized, with S_IWUSR, which is. bz#2085 * Add a null implementation of endgrent for platforms that don't have it (eg Android) bz#2087 * Support platf...

Three patches attached. One implements a 'ControlPersist' option, which when used with 'ControlMaster auto' or 'ControlMaster 'yes' make makes the master background itself and stick around after its own primary session is completed. The second causes control clients to pass X11 display, auth proto and auth data over the control socket so that appropriate X11

...strict-alignment architectures. * A number of portability fixes for Android: * Don't try to use lastlog on Android; bz#2111 * Fall back to using openssl's DES_crypt function on platorms that don't have a native crypt() function; bz#2112 * Test for fd_mask, howmany and NFDBITS rather than trying to enumerate the plaforms that don't have them. bz#2085 * Replace S_IWRITE, which isn't standardized, with S_IWUSR, which is. bz#2085 * Add a null implementation of endgrent for platforms that don't have it (eg Android) bz#2087 * Support platf...

...strict-alignment architectures. * A number of portability fixes for Android: * Don't try to use lastlog on Android; bz#2111 * Fall back to using openssl's DES_crypt function on platorms that don't have a native crypt() function; bz#2112 * Test for fd_mask, howmany and NFDBITS rather than trying to enumerate the plaforms that don't have them. bz#2085 * Replace S_IWRITE, which isn't standardized, with S_IWUSR, which is. bz#2085 * Add a null implementation of endgrent for platforms that don't have it (eg Android) bz#2087 * Support platf...

..., optval, rc; + + if (timeout <= 0) + return(connect(sockfd, serv_addr, addrlen)); + + if (fcntl(sockfd, F_SETFL, O_NONBLOCK) < 0) + return -1; + + rc = connect(sockfd, serv_addr, addrlen); + if (rc == 0) + return 0; + if (errno != EINPROGRESS) + return -1; + + fdsetsz = howmany(sockfd+1, NFDBITS) * sizeof(fd_mask); + fdset = (fd_set *)xmalloc(fdsetsz); + memset(fdset, 0, fdsetsz); + FD_SET(sockfd, fdset); + tv.tv_sec = timeout; + tv.tv_usec = 0; + rc=select(sockfd+1, NULL, fdset, NULL, &tv); + + switch(rc) { + case 0: + errno = ETIMEDOUT; + case -1: + return -1; + break; + case 1:...

..., optval, rc; + + if (timeout <= 0) + return(connect(sockfd, serv_addr, addrlen)); + + if (fcntl(sockfd, F_SETFL, O_NONBLOCK) < 0) + return -1; + + rc = connect(sockfd, serv_addr, addrlen); + if (rc == 0) + return 0; + if (errno != EINPROGRESS) + return -1; + + fdsetsz = howmany(sockfd+1, NFDBITS) * sizeof(fd_mask); + fdset = (fd_set *)xmalloc(fdsetsz); + memset(fdset, 0, fdsetsz); + FD_SET(sockfd, fdset); + tv.tv_sec = timeout; + tv.tv_usec = 0; + rc=select(sockfd+1, NULL, fdset, NULL, &tv); + + switch(rc) { + case 0: + errno = ETIMEDOUT; + case -1: + return -1; + break; + case 1:...

...lag = 0, log_level = SYSLOG_LEVEL_INFO; - int opt, fopt_count = 0; - char *tname; + int opt, fopt_count = 0, j; + char *tname, *line; + size_t i, line_len; + FILE *fp; extern int optind; extern char *optarg; @@ -808,20 +694,52 @@ main(int argc, char **argv) read_wait_nfdset = howmany(maxfd, NFDBITS); read_wait = xcalloc(read_wait_nfdset, sizeof(fd_mask)); - if (fopt_count) { - Linebuf *lb; - char *line; - int j; - - for (j = 0; j < fopt_count; j++) { - lb = Linebuf_alloc(argv[j], error); - if (!lb) + line = NULL; + + for (j = 0; j < fopt_count; j++) { + if (line == NULL) +...

Hi, 1. I think you should apply the attached patch to openssh-2.9p1, otherwise ssh-keyscan on linux boxes with glibc-2.1 will experience enormous timeout delays. 2. Is there a program like ssh-keyscan for the Version2 (dsa and rsa) keys?? regards Peter Breitenlohner <peb at mppmu.mpg.de> -------------- next part -------------- diff -ur openssh-2.9p1.orig/ssh-keyscan.c

Dear OpenSSH Portable sshd developers, I'm having a problem where sshd login sessions are occasionally (as often as once a day) getting stuck indefinitely. I enabled debug messages and got a backtrace of a stuck sshd, and I think I've found the bug. I wanted to run it by the list once before filing. sshd version: OpenSSH_4.2p1 FreeBSD-20050903, OpenSSL 0.9.7e-p1 25 Oct 2004

...nup(fatal_callback, NULL); + maxfd = fdlim_get(1); if (maxfd < 0) fatal("%s: fdlim_get: bad value", __progname); @@ -603,6 +780,9 @@ fdcon = xmalloc(maxfd * sizeof(con)); memset(fdcon, 0, maxfd * sizeof(con)); + init_rng(); + seed_rng(); + read_wait_size = howmany(maxfd, NFDBITS) * sizeof(fd_mask); read_wait = xmalloc(read_wait_size); memset(read_wait, 0, read_wait_size); @@ -610,12 +790,16 @@ do { while (ncon < MAXCON) { char *name; + int j; host = nexthost(argc, argv); if (host == NULL) break; name = strnnsep(&host, " \t\n&q...