Re: glibc
Brian F. Feldman wrote: On Mon, 19 Jul 1999, John Polstra wrote: Left as an exercise for the reader: Figure out how the two differ and which one is "better". :-) I'd rather hurt myself severely. Of course. That's a prerequisite for becoming a committer. :-) John --- John Polstra [EMAIL PROTECTED] John D. Polstra Co., Inc.Seattle, Washington USA "No matter how cynical I get, I just can't keep up."-- Nora Ephron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: glibc
In article pine.bsf.4.10.9907191315440.40596-100...@janus.syracuse.net, Brian F. Feldman gr...@freebsd.org wrote: [GNU getopt] If you give me documentation on it, I'll implement it for the BSD libc. Note, we already have GNU getopt in the source tree in libiberty (in two different places -- binutils and gdb). It might be better just to install libiberty from one of those places. Left as an exercise for the reader: Figure out how the two differ and which one is better. :-) John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: glibc
Brian F. Feldman wrote: On Mon, 19 Jul 1999, John Polstra wrote: Left as an exercise for the reader: Figure out how the two differ and which one is better. :-) I'd rather hurt myself severely. Of course. That's a prerequisite for becoming a committer. :-) John --- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: Why 'dd' does not seek over 'char' devs (specifically raw disk
In article [EMAIL PROTECTED], Brian F. Feldman [EMAIL PROTECTED] wrote: On Tue, 13 Jul 1999, Luigi Rizzo wrote: couldn't we first try lseek and only do the reads on char devs where the lseek fails ? lseek() won't usually fail unless it's something like EBADF. It merely sets the current fd's offset. It would be nice to be able to tell from a device driver if it supports seeking (da) or not (sa). Hmm... actually, if we just specify somehow that we support either direct or sequential access... this would be possible. It would be a big improvement if dd could handle seeking on character disk devices. I'm reasonably certain there exists some ioctl (perhaps related to reading disk labels) which could be used to figure out whether a character device was a disk or not. A simple fix like that would make dd a lot more useful for the case Luigi brought up. John -- John Polstra [EMAIL PROTECTED] John D. Polstra Co., Inc.Seattle, Washington USA "No matter how cynical I get, I just can't keep up."-- Nora Ephron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: a BSD identd
In article [EMAIL PROTECTED], Ian Dowse [EMAIL PROTECTED] wrote: Why not actually store the fake ID in a symbolic link? That way you just do a readlink(), which would be safer, neater and faster than reading a file. A user can set up a fake ID with something like: ln -s "Warm-Fuzzy" .fakeid Ick. Please, no more abuse of symbolic links! Once (malloc) was enough. Data is held in files, not in filenames. John -- John Polstra [EMAIL PROTECTED] John D. Polstra Co., Inc.Seattle, Washington USA "No matter how cynical I get, I just can't keep up."-- Nora Ephron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: Why 'dd' does not seek over 'char' devs (specifically raw disk
In article pine.bsf.4.10.9907131042310.76301-100...@janus.syracuse.net, Brian F. Feldman gr...@freebsd.org wrote: On Tue, 13 Jul 1999, Luigi Rizzo wrote: couldn't we first try lseek and only do the reads on char devs where the lseek fails ? lseek() won't usually fail unless it's something like EBADF. It merely sets the current fd's offset. It would be nice to be able to tell from a device driver if it supports seeking (da) or not (sa). Hmm... actually, if we just specify somehow that we support either direct or sequential access... this would be possible. It would be a big improvement if dd could handle seeking on character disk devices. I'm reasonably certain there exists some ioctl (perhaps related to reading disk labels) which could be used to figure out whether a character device was a disk or not. A simple fix like that would make dd a lot more useful for the case Luigi brought up. John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: a BSD identd
In article 199907132004.aa08...@salmon.maths.tcd.ie, Ian Dowse iedo...@maths.tcd.ie wrote: Why not actually store the fake ID in a symbolic link? That way you just do a readlink(), which would be safer, neater and faster than reading a file. A user can set up a fake ID with something like: ln -s Warm-Fuzzy .fakeid Ick. Please, no more abuse of symbolic links! Once (malloc) was enough. Data is held in files, not in filenames. John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: a BSD identd
Doug wrote: John Polstra wrote: Are you sure? If you simply don't run an identd, the queries will get an instant connection refused error. That's even faster than sending back a bogus response. Many daemons that request ident, and almost all IRC daemons that I'm aware of don't take "NO" for an answer. They sit waiting for a valid response, and timeout after X seconds, where X is c. 30 seconds. Really?? Even though their connect() call failed? Ick! I know sendmail doesn't behave that way. I'll take your word about the IRC daemons -- I don't know anything about them. Whether this behavior is good or not begs the question, Agreed. John --- John Polstra [EMAIL PROTECTED] John D. Polstra Co., Inc.Seattle, Washington USA "No matter how cynical I get, I just can't keep up."-- Nora Ephron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: a BSD identd
In article 199907102150.paa33...@harmony.village.org, Warner Losh i...@village.org wrote: Some ftpd and sendmail servers make the queries. When I have my fake identd in place, they go much faster... :-) Are you sure? If you simply don't run an identd, the queries will get an instant connection refused error. That's even faster than sending back a bogus response. The only way a long timeout can occur is if you have a filter rule installed that drops the incoming packets without responding to them. You can block the incoming packets but still avoid the timeout with a filter rule that sends back a reset: add reset tcp from any to any auth setup in via etha16 John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: a BSD identd
Doug wrote: John Polstra wrote: Are you sure? If you simply don't run an identd, the queries will get an instant connection refused error. That's even faster than sending back a bogus response. Many daemons that request ident, and almost all IRC daemons that I'm aware of don't take NO for an answer. They sit waiting for a valid response, and timeout after X seconds, where X is c. 30 seconds. Really?? Even though their connect() call failed? Ick! I know sendmail doesn't behave that way. I'll take your word about the IRC daemons -- I don't know anything about them. Whether this behavior is good or not begs the question, Agreed. John --- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: poll() vs select()
In article [EMAIL PROTECTED], Archie Cobbs [EMAIL PROTECTED] wrote: A new, faster event notification system would be great. But don't forget to include *all* events, not just file descriptor readability/writability. Yes! Yes! Yes! (I agree.) John -- John Polstra [EMAIL PROTECTED] John D. Polstra Co., Inc.Seattle, Washington USA "No matter how cynical I get, I just can't keep up."-- Nora Ephron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: poll() vs select()
In article [EMAIL PROTECTED], Brian F. Feldman [EMAIL PROTECTED] wrote: On Sun, 4 Jul 1999, Archie Cobbs wrote: A new, faster event notification system would be great. But don't forget to include *all* events, not just file descriptor readability/writability. I.e., signal delivery, child exit notification, maybe even support for an arbitrary number of (independent) timers. And make the events independent from each other -- to avoid problems like when an application completely hangs for 90 seconds when it calls gethostbyname(). An async thread to do hostname lookups would be great! Wouldn't be too hard in libc_r, would it? The application itself has to get involved if it wants to do async name lookups, or async anything else, for that matter. Suppose you do have an async thread to do hostname lookups as you propose. What is the application going to do while that thread is waiting for the lookup to complete? It depends on the application, and thus it has to be coded into the application. Maybe there's nothing useful the application could do until the lookup returns. I've been told that it works fine to use libc_r and put the name lookups into a separate thread. But to take advantage of it, the application has to have something useful it wants to do (and can do) in the meantime. John -- John Polstra [EMAIL PROTECTED] John D. Polstra Co., Inc.Seattle, Washington USA "No matter how cynical I get, I just can't keep up."-- Nora Ephron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: mmap question
In article 000101bec73c$e20e3660$[EMAIL PROTECTED], Kelly Yancey [EMAIL PROTECTED] wrote: Also, in case it hasn't been notice already (I'm running -stable from May 18th), the mmap(2) manpage has a typo: it has "#include sys/mman.h" So what's the typo, exactly? John -- John Polstra [EMAIL PROTECTED] John D. Polstra Co., Inc.Seattle, Washington USA "No matter how cynical I get, I just can't keep up."-- Nora Ephron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: poll() vs select()
In article 199907050103.saa51...@bubba.whistle.com, Archie Cobbs arc...@whistle.com wrote: A new, faster event notification system would be great. But don't forget to include *all* events, not just file descriptor readability/writability. Yes! Yes! Yes! (I agree.) John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: poll() vs select()
In article pine.bsf.4.10.9907042155090.66085-100...@janus.syracuse.net, Brian F. Feldman gr...@freebsd.org wrote: On Sun, 4 Jul 1999, Archie Cobbs wrote: A new, faster event notification system would be great. But don't forget to include *all* events, not just file descriptor readability/writability. I.e., signal delivery, child exit notification, maybe even support for an arbitrary number of (independent) timers. And make the events independent from each other -- to avoid problems like when an application completely hangs for 90 seconds when it calls gethostbyname(). An async thread to do hostname lookups would be great! Wouldn't be too hard in libc_r, would it? The application itself has to get involved if it wants to do async name lookups, or async anything else, for that matter. Suppose you do have an async thread to do hostname lookups as you propose. What is the application going to do while that thread is waiting for the lookup to complete? It depends on the application, and thus it has to be coded into the application. Maybe there's nothing useful the application could do until the lookup returns. I've been told that it works fine to use libc_r and put the name lookups into a separate thread. But to take advantage of it, the application has to have something useful it wants to do (and can do) in the meantime. John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: Dynamic linking
In article 3780aeb2.20616...@agama.com, Andrew Iltchenko and...@agama.com wrote: Hi everyone! Is there a way of making dlopen return an error from the shared object's _init function? No. The _init function by definition is void _init(void), and so it cannot return a value. John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: mmap question
In article 000101bec73c$e20e3660$291c4...@kbyanc.alcnet.com, Kelly Yancey kby...@alcnet.com wrote: Also, in case it hasn't been notice already (I'm running -stable from May 18th), the mmap(2) manpage has a typo: it has #include sys/mman.h So what's the typo, exactly? John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: poll() vs select()
Brian F. Feldman wrote: On Tue, 6 Jul 1999, John Polstra wrote: In article pine.bsf.4.10.9907042155090.66085-100...@janus.syracuse.net, The application itself has to get involved if it wants to do async name lookups, or async anything else, for that matter. Suppose you do have an async thread to do hostname lookups as you propose. What is the application going to do while that thread is waiting for the lookup to complete? It depends on the application, and thus it has to be coded into the application. Maybe there's nothing useful the application could do until the lookup returns. I've been told that it works fine to use libc_r and put the name lookups into a separate thread. But to take advantage of it, the application has to have something useful it wants to do (and can do) in the meantime. It would let the other threads run more while the lookup is occurring. Wouldn't that be the most natural expectation of it? Or would this be too hard without kernel-assisted threading? What I'm saying is, we already have that in multi-threaded applications. The system can't just provide it automatically to single-threaded applications; they wouldn't know how to take advantage of it. In other words: * Multi-threaded applications already have it. * Single-threaded applications can't use it. John --- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: Login.conf (Whose problem is this) ?
Sheldon Hearn wrote: This stuff is old and obsolete. LOGIN_CAP_AUTH isn't supported any more. (It never was fully supported, actually.) Don't use it. There's an open PR for this, PR 10115. I assume all that's required is that we smack the outdated comments from login.conf? Yes, I think so. John --- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: Login.conf (Whose problem is this) ?
In article [EMAIL PROTECTED], Gustavo V G C Rios [EMAIL PROTECTED] wrote: i am trying to get a login classes for my users, so i decided to edit /etc/login.conf. Among other, i have yma classes this way: shell:\ :maxproc=5:\ :tc=auth-default: Looking for auth-default, i saw the following: ## Authentication methods ## Note that these are disabled by default, and libutil must ## be rebuilt with LOGIN_CAP_AUTH defined to use them. This stuff is old and obsolete. LOGIN_CAP_AUTH isn't supported any more. (It never was fully supported, actually.) Don't use it. That's happened cause i turn on LOGIN_CAP_AUTH! My doubt is: Shouldn't it be -DLOGIN_CAP_AUTH? Yes, of course. That's what "with LOGIN_CAP_AUTH defined" means. But it's broken, so don't bother. If you want login classes all you need to do is "vipw" and insert the correct class in the class field. (See passwd(5) for details.) If you want to create a new class, just edit it into your login.conf file and then run cap_mkdb as instructed in the comment at the top of that file. John -- John Polstra [EMAIL PROTECTED] John D. Polstra Co., Inc.Seattle, Washington USA "No matter how cynical I get, I just can't keep up."-- Nora Ephron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Pictures from USENIX
I put a handful of pictures from this year's USENIX conference at http://www.freebsd.org/~jdp/usenix1999/. John --- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: Login.conf (Whose problem is this) ?
In article 377e34f9.ca198...@tdnet.com.br, Gustavo V G C Rios ker...@tdnet.com.br wrote: i am trying to get a login classes for my users, so i decided to edit /etc/login.conf. Among other, i have yma classes this way: shell:\ :maxproc=5:\ :tc=auth-default: Looking for auth-default, i saw the following: ## Authentication methods ## Note that these are disabled by default, and libutil must ## be rebuilt with LOGIN_CAP_AUTH defined to use them. This stuff is old and obsolete. LOGIN_CAP_AUTH isn't supported any more. (It never was fully supported, actually.) Don't use it. That's happened cause i turn on LOGIN_CAP_AUTH! My doubt is: Shouldn't it be -DLOGIN_CAP_AUTH? Yes, of course. That's what with LOGIN_CAP_AUTH defined means. But it's broken, so don't bother. If you want login classes all you need to do is vipw and insert the correct class in the class field. (See passwd(5) for details.) If you want to create a new class, just edit it into your login.conf file and then run cap_mkdb as instructed in the comment at the top of that file. John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: dlopen returns non NULL
In article pine.bsf.4.05.9906291726460.1300-100...@iclub.nsu.ru, Max Khon f...@iclub.nsu.ru wrote: in the following code `dlopen' returns NULL on the first iteration (because g() is not defined) -- it's ok but on the second iteration `dlopen' returns valid dlh ELF or a.out? Which version of FreeBSD? For a.out, it's a known bug and there is already an open PR on it. I wouldn't be surprised if the bug existed in ELF too. John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA Self-interest is the aphrodisiac of belief. -- James V. DeLong To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: tcpdump(1) additions.
In article 19990630092358.a51...@wopr.caltech.edu, Matthew Hunt m...@astro.caltech.edu wrote: I think the point is that when root is running tcpdump on host A, a bad guy on host B can create a packet which makes tcpdump on A execute his code (as root, since that's who's running it). This is not desirable. I would say it is not _acceptable_. The code shouldn't go into our source tree until the known buffer overflow problems have been fixed. It's just stupid to add buffer overflow problems to a program that is always run as root. John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA Self-interest is the aphrodisiac of belief. -- James V. DeLong To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: dlopen returns non NULL
Max Khon wrote: For a.out, it's a known bug and there is already an open PR on it. I wouldn't be surprised if the bug existed in ELF too. 3.2-STABLE built on 10 Jun, ELF Thanks for the info. Could you please do a send-pr on this bug, and tell me the PR number? Then I'll assign myself as the resposible person. Please be sure to state that it's the ELF dynamic linker. If you're in a big hurry and would like to work on it yourself, the relevant code is in src/libexec/rtld-elf/rtld.c in the function dlopen() near the comment that says XXX - Clean up properly after an error. :-) The fix may be as simple as calling unref_object_dag() from the failure cases there, but it will need careful checking. Some additional changes may be needed in load_needed_objects() near the comment that says XXX - cleanup. :-) Thanks, John --- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA No matter how cynical I get, I just can't keep up.-- Nora Ephron To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: m3socks and cvsup
Udo Schweigert wrote:
I'm not using m3socks, I use the standard socks5 from ports (current
version is socks5-1.0.8). To use it (the runsocks program) with
cvsup one has to build cvsup with dynamic linking (by building port
net/cvsup), the precompiled package from CD-ROM and the one from
net/cvsup-bin port will not work.
For example I changed in /usr/local/etc/cvsup/update.sh (contained in
net/cvsup-mirror port):
cvsup -1gL 1 -c ${colldir} -h ${host} supfile
---
runsocks cvsup -P m -1gL 1 -c ${colldir} -h ${host} supfile
As stated before, this works since approx. one year without any problems.
Thanks for the information. I was pretty sure that multiplexed mode
had eliminated the need for a special socks package, but I hadn't
checked it myself.
I recommend adding @M3novm to the cvsup command line when using
socks. Otherwise you might get Bad address errors occasionally.
John
---
John Polstra j...@polstra.com
John D. Polstra Co., Inc.Seattle, Washington USA
Self-interest is the aphrodisiac of belief. -- James V. DeLong
To Unsubscribe: send mail to majord...@freebsd.org
with unsubscribe freebsd-hackers in the body of the message
Re: m3socks and cvsup
In article 19990608084217.a5...@alaska.cert.siemens.de, Udo Schweigert u...@cert.siemens.de wrote: I'm using it (runsocks cvsup -P m) for a year now and it works without any problems. (Since cvsup 16 the -P m is not needed, so runsocks cvsup should so it). Just to make sure I understand: You're using standard socks rather than m3socks, right? I believe that standard socks should work with cvsup's multiplexed mode, but I've never tried it. It would probably be necessary to add @M3novm to the command line, though. If standard socks works, then I want to eliminate m3socks. There are some problems with m3socks that I just found out about recently. John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA Self-interest is the aphrodisiac of belief. -- James V. DeLong To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: Partitioning a freebsd partition on the fly
In article 19990601131050.a27...@falcon.sourcee.com, Evan Tsoukalas e...@falcon.sourcee.com wrote: My question is, can I shrink my /usr partition down without losing what is on it? It is a 3.8 gig partition that only has 900 meg or so on it. I would like to trim about a gigabyte off of it so that I can install Windoze. Is this going to be possible, or should I start from scratch installing Winoze first? The only way to shrink it is like this: * back up the filesystem to someplace using dump * shrink the partition * run newfs to create a filesystem on the resized partition * restore the data from your backup John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA Self-interest is the aphrodisiac of belief. -- James V. DeLong To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: where is variable edata defined ?
In article 000201beacec$98086960$85343...@k, fretre fre...@163.net wrote: The variable such as _edata, _etext,_gdt are defined in the file asnames.h(/usr/include/machine/asnames.h),but 1. Where is the file that the variable such as edata,etext,gdt are defined in? and I don't know about gdt. But edata and etext are provided automatically by the linker (ld). John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA Self-interest is the aphrodisiac of belief. -- James V. DeLong To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: PAM: Undefined symbols at runtime
Matthew Hunt wrote: If I add -export-dynamic to LDADD in usr.bin/login/Makefile, everything is groovy. I've noticed that dynamic linking in Perl also doesn't work for me, likely for the same reason. I haven't tried rebuilding perl with -export-dynamic yet, though. So, the question now is: Why do I need -export-dynamic, when evidently nobody else does? I don't know. Maybe you have something unusual in your /etc/make.conf file? John --- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA Self-interest is the aphrodisiac of belief. -- James V. DeLong To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: PAM: Undefined symbols at runtime
In article 19990529151511.a34...@wopr.caltech.edu, Matthew Hunt m...@freebsd.org wrote: I have been running 3.x and 4.0-CURRENT for some time, but have never bothered using PAM. If you are running 3.1 or later, or -current, you _are_ using PAM. Login uses it automatically, and it's not something you enable or disable. If you don't have a valid /etc/pam.conf file then login issues loud and repeated complaints to syslog, which will appear on the system console. Yesterday, after a build of 4.0-CURRENT of that day, I decided to try enabling PAM by copying /usr/src/pam.conf to /etc. There is no file /usr/src/pam.conf. Do you mean /usr/src/etc/pam.conf? My problem is that login fails, due to undefined symbols in the PAM modules: I don't know what's going on with your system, but something is messed up. Maybe you're trying to mix and match a.out and ELF files. Try running file on /usr/bin/login as well as your libpam and pam modules. John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA Self-interest is the aphrodisiac of belief. -- James V. DeLong To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: more on the pcmcia saga.
In article 199905270619.qaa09...@cheops.anu.edu.au, Darren Reed ava...@coombs.anu.edu.au wrote: In some mail from Wes Peters, sie said: [...] PC-Card Intel 82365 (5 mem 2 I/O windows) pcic: controller irq 3 ^^ Initializing PC-card drivers: sio Why does it list sio here ? I don't see where sio is actually used with PCMCIA here...why doesn't it list ed0 too ? (Is this a bug ?) Yes, this was a bug. I committed the fix on April 27: jdp 1999/04/27 11:34:14 PDT Modified files: sys/pccard pccard.c Log: Fix the code that prints the Initializing PC-card drivers message so that the list of drivers is correct. This is a slightly simplified version of the patch from the PR. PR: misc/10544 Submitted by: Christophe Colle co...@krtkg1.rug.ac.be Revision ChangesPath 1.75 +3 -4 src/sys/pccard/pccard.c jdp 1999/04/27 11:39:25 PDT Modified files:(Branch: RELENG_3) sys/pccard pccard.c Log: MFC 1.74 - 1.75: Print correct list of PC-Card drivers. Revision ChangesPath 1.68.2.3 +3 -4 src/sys/pccard/pccard.c John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA Self-interest is the aphrodisiac of belief. -- James V. DeLong To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: dlopen failure
In article 37458ff0.fc9b2...@cablenet.net,
Damian Hamill dam...@cablenet.net wrote:
I have found the problem and it is a problem with make. By chance I did
an ls -l of the directory and noticed the shared object was only 371
bytes and thought no that can't be right.
Thanks for letting us know. I'm glad it's solved now.
My makefile sez.
mysqlacc.so : mysqlacc.o
ld -Bshareable -o $@ $ -u _floor ../../lib/libV.a ... {other libs}
By the way, don't use ld -Bshareable to build shared libraries.
Use cc -shared. There are some special .o files from /usr/lib
that need to be linked in, and cc -shared will do that for you
automatically.
John
--
John Polstra j...@polstra.com
John D. Polstra Co., Inc.Seattle, Washington USA
Self-interest is the aphrodisiac of belief. -- James V. DeLong
To Unsubscribe: send mail to majord...@freebsd.org
with unsubscribe freebsd-hackers in the body of the message
Re: dlopen failure
Doug Rabson wrote: On Thu, 20 May 1999, John Polstra wrote: In article 373c3f3f.a99db...@cablenet.net, Damian Hamill dam...@cablenet.net wrote: I have a program that is dumping core. --- Here's the gdb output; Program terminated with signal 6, Abort trap. #0 0x800b728 in _kill () (gdb) bt #0 0x800b728 in _kill () #1 0x800b34c in abort () #2 0x8004aa2 in __assert () #3 0x8003b4b in map_object () #4 0x8002e9e in find_symdef () #5 0x800334d in dlopen () #6 0x8049a68 in Get_SQL_Driver (name=0x804c7e4 mysql) at Vdb.c:150 #7 0x8049ff9 in GetDefaultDriver () at Vdb.c:254 #8 0x804a141 in VdbInit (user=0x804bfb1 nobody, passwd=0x0) at Vdb.c:329 #9 0x8049316 in main () #10 0x8048be5 in _start () I don't know what's going on here, but this stack trace can't be right. dlopen doesn't call find_symdef, and find_symdef doesn't call map_object. Isn't map_object() part of the a.out rtld? Both rtlds have functions named find_symdef() and map_object(). He indicated that it was an ELF system, so I assumed he was using the ELF rtld. In any case, my statement about the stack trace would be equally true for the a.out dynamic linker. :-) John --- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA Self-interest is the aphrodisiac of belief. -- James V. DeLong To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: dlopen failure
In article 373c3f3f.a99db...@cablenet.net, Damian Hamill dam...@cablenet.net wrote: I have a program that is dumping core. --- Here's the gdb output; Program terminated with signal 6, Abort trap. #0 0x800b728 in _kill () (gdb) bt #0 0x800b728 in _kill () #1 0x800b34c in abort () #2 0x8004aa2 in __assert () #3 0x8003b4b in map_object () #4 0x8002e9e in find_symdef () #5 0x800334d in dlopen () #6 0x8049a68 in Get_SQL_Driver (name=0x804c7e4 mysql) at Vdb.c:150 #7 0x8049ff9 in GetDefaultDriver () at Vdb.c:254 #8 0x804a141 in VdbInit (user=0x804bfb1 nobody, passwd=0x0) at Vdb.c:329 #9 0x8049316 in main () #10 0x8048be5 in _start () I don't know what's going on here, but this stack trace can't be right. dlopen doesn't call find_symdef, and find_symdef doesn't call map_object. John -- John Polstra j...@polstra.com John D. Polstra Co., Inc.Seattle, Washington USA Self-interest is the aphrodisiac of belief. -- James V. DeLong To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
Re: gas pseudo-ops
In article 01bf260d$837c8770$[EMAIL PROTECTED], Stephane Potvin [EMAIL PROTECTED] wrote: Do you think it would be possible to change the .type symbol,@object for .type symbol,object in gensetdef? By looking in the gas code I found that the assembler just ignores the @ character. I think it would be much better to remove all of the platform-specific asm statements from gensetdefs and put them into a header machine/gensetdefs.h. Gensetdefs would then emit an include of that header to get the needed definitions. This isn't very high on my personal priority list, though. John -- John Polstra [EMAIL PROTECTED] John D. Polstra Co., Inc.Seattle, Washington USA "No matter how cynical I get, I just can't keep up."-- Nora Ephron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: Portable way to compare struct stat's?
Garance A Drosihn wrote: At 10:40 AM -0800 11/18/99, John Polstra wrote: I don't dispute that point, but it is worth mentioning that POSIX specifically guarantees that st_dev and st_ino "taken together uniquely identify the file within the system." So it is OK for applications to rely on that. Given how many people have files mounted from foreign file systems, I would think that applications should not rely on that. Sure, it's a nice guarantee for a completely stand-alone system, but a "general purpose" application should consider that it may be dealing with files in NFS, AFS, or some other file system, and plan accordingly. We must be interpreting the requirement differently, because it doesn't seem onerous at all to me. The st_dev value needn't be the same on two different hosts which both mount the same filesystem. I also doubt that the requirement has to hold across remounts. Under that interpretation, it's simple to meet the requirement. Just create a locally-unique st_dev value whenever you mount a filesystem, and if the filesystem is remote then record a mapping between (remote hostname, remote host's idea of the "device") and the local st_dev value. (I've never used AFS, so I may be missing something crucial here.) If the program is only for you in your organization, then the POSIX promise is helpful. If you're sending the code off to "the world", then you should not rely on that posix promise. Just my own opinion, of course. Well, the POSIX requirement isn't optional. If a system doesn't meet it then it is not POSIX-compliant. So any application that is targeted toward POSIX systems is perfectly within its rights to rely on the requirement. John --- John Polstra [EMAIL PROTECTED] John D. Polstra Co., Inc.Seattle, Washington USA "No matter how cynical I get, I just can't keep up."-- Nora Ephron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
