"Petersen, Jörg"
2000-Jan-18 10:33 UTC
AIX- 'Host not found' in getaddrinfo("0.0.0.0", "22" , ...)
Hello, while openssh-1.2.1pre25 ran out-of-the box, in openssh-1.2.1pre27 the sshd fails to start with: "Host not found" returned... (gcc 2.9.5.2 under AIX 4.3.2 ML 2) Incompatibility of AIX-getaddrinfo ???? Since I'm not familiar with getaddrinfo, I've got no idea what goes wrong ??? Does the code below work on other architectures? Demo-Code built with values taken from a debug-session: ======================================================#include <stdio.h> #include <sys/socket.h> #include <netdb.h> void main (void) { struct addrinfo hints; struct addrinfo *res; int gaierr; hints.ai_family = AF_UNSPEC; hints.ai_flags = 0; hints.ai_flags = 0; hints.ai_family = 0; hints.ai_socktype = 1; /* = SOCK_STREAM; */ hints.ai_protocol = 0; hints.ai_addrlen = 0; hints.ai_canonname = 0x0; hints.ai_addr = 0x0; hints.ai_next = 0x0; gaierr = getaddrinfo("0.0.0.0", "22" , &hints, &res); printf("gaierr=%i (=%s)\n",gaierr,gai_strerror(gaierr)); }
Darren_Hall at progressive.com
2000-Jan-18 14:26 UTC
AIX- 'Host not found' in getaddrinfo("0.0.0.0", "22" , ...)
> while openssh-1.2.1pre25 ran out-of-the box, in openssh-1.2.1pre27 the > sshd fails to start with: "Host not found" returned... > (gcc 2.9.5.2 under AIX 4.3.2 ML 2)I can't duplicate this, although I'm using the AIX native compiler. I have found a couple issues with pre27 release. Quick fix, the config.h.in file, please change #endif _CONFIG_H to #endif /* _CONFIG_H */ There's also a problem with u_int8_t, as defined within fake-socket.h, I'll try to prepare a patch later today. As a quick fix to get it to compile, I defined u_int8_t to unsigned char, Stevens had some autoconf rules to get a relatively portable listing of types.> Incompatibility of AIX-getaddrinfo ????I'm noticing that this dist has a fake-getaddrinfo, you're using AIX's native version on 4.3.2? In 4.2.1, the fake version seems defined when I compiled. Did you run ./configure --enable-ipv6 (which would definitely not use the pre-packaged version)?
David Rankin
2000-Jan-18 14:49 UTC
AIX- 'Host not found' in getaddrinfo("0.0.0.0", "22" , ...)
On Tue, Jan 18, 2000 at 11:33:12AM +0100, "Petersen, J?rg" wrote:> Hello, > while openssh-1.2.1pre25 ran out-of-the box, in openssh-1.2.1pre27 the > sshd fails to start with: "Host not found" returned... > (gcc 2.9.5.2 under AIX 4.3.2 ML 2)> Incompatibility of AIX-getaddrinfo ???? > Since I'm not familiar with getaddrinfo, I've got no idea what goes wrong > ??? Does the code below work on other architectures?Accepting "0.0.0.0" is a hack, not a "standard behaviour" for UNIX-like OSes. I know that NetBSD has become less accepting of 0.0.0.0 as an "all addresses" alias. Is ListenAddress 0.0.0.0 a no-op? It looks like it is, but I don't have a multi-interface machine on which I can check. If it's not, then maybe we need to make people specify all ListenAddress'es or maybe we need to let the default be to listen on all addresses unless a ListenAddress is specified, and then it won't listen to any other source address. David -- David W. Rankin, Jr. Husband, Father, and UNIX Sysadmin. Email: drankin at bohemians.lexington.ky.us Address/Phone Number: Ask me. "It is no great thing to be humble when you are brought low; but to be humble when you are praised is a great and rare accomplishment." St. Bernard
"Petersen, Jörg"
2000-Jan-18 15:05 UTC
AIX- 'Host not found' in getaddrinfo("0.0.0.0", "22" , ...)
Thanks for all answers. Here my summary/solution: ./configure --with-egd-pool=/usr/local/etc/entropy-for-openssh on AIX uses the getaddrinfo shipped with AIX. Somehow this doesn't work - neither with 0.0.0.0 nor with a real IP-Adress.... Commenting out /* #define HAVE_GETADDRINFO 1 */ in config.h uses the fake-getnameinfo.c-Version which works. This leaves the Question: a) is the AIX-getaddrinfo wrong or b) is the call to getaddrinfo by openssh wrong? Joerg Petersen
Damien Miller
2000-Jan-18 23:39 UTC
AIX- 'Host not found' in getaddrinfo("0.0.0.0", "22" , ...)
On Tue, 18 Jan 2000, Petersen, J?rg wrote:> Hello, > while openssh-1.2.1pre25 ran out-of-the box, in openssh-1.2.1pre27 the > sshd fails to start with: "Host not found" returned... > (gcc 2.9.5.2 under AIX 4.3.2 ML 2) > > Incompatibility of AIX-getaddrinfo ???? > Since I'm not familiar with getaddrinfo, I've got no idea what goes wrong > ??? Does the code below work on other architectures?Does AIX define its own getaddrinfo or does it use the replacement functions? Damien -- | "Bombay is 250ms from New York in the new world order" - Alan Cox | Damien Miller - http://www.mindrot.org/ | Email: djm at mindrot.org (home) -or- djm at ibs.com.au (work)