resolver problem with shared linked programs
I noticed that sendmail started to complain of a failed reverse lookup
when starting:
Feb 28 11:40:43 beast sendmail[276]:
gethostbyaddr(3ffe:2900:fffa:2:2a0:c9ff:fe8d:7c5f) failed: 2
At first I thought something is wrong with my ipv6 dns setup, but it turned
out that if a program is linked shared the first getipnodebyaddr() it does
will succeed, but the rest fail. For a staticly linked program all of
them will succeed:
beast:~/try cc -Wall -static -O -o tstgetipnodebyaddr.static-c tstgetipnodebyaddr.c
beast:~/try cc -Wall -O -o tstgetipnodebyaddr tstgetipnodebyaddr.c
beast:~/try ./tstgetipnodebyaddr.static-c And
the answer is: beast.icomtek.csir.co.za
And the answer is: beast.icomtek.csir.co.za
beast:~/try ./tstgetipnodebyaddr
And the answer is: beast.icomtek.csir.co.za
Oops: 2.
getipnodebyaddr: Host name lookup failure
beast:~/try
My test program is at the end of the email. Maybe I (and sendmail) have
done something wrong?
John
--
John Hay -- [EMAIL PROTECTED]
#include sys/types.h
#include sys/socket.h
#include netinet/in.h
#include arpa/inet.h
#include netdb.h
#include stdio.h
int main(int argc, char **argv)
{
struct hostent *he;
int h_err;
u_char ipnum[16];
char *astr1;
astr1 = "146.64.24.3";
h_err = inet_pton(AF_INET, astr1, ipnum);
if(h_err == 0) {
printf("conversion error with inet_pton()\n");
exit(1);
}
he = getipnodebyaddr(ipnum, 4, AF_INET, h_err);
if(he == NULL) {
printf("Oops: %d.\n", h_err);
herror("getipnodebyaddr");
} else
printf("And the answer is: %s\n", he-h_name);
he = getipnodebyaddr(ipnum, 4, AF_INET, h_err);
if(he == NULL) {
printf("Oops: %d.\n", h_err);
herror("getipnodebyaddr");
} else
printf("And the answer is: %s\n", he-h_name);
return 0;
}
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Re: resolver problem with shared linked programs
John Hay wrote:
I noticed that sendmail started to complain of a failed reverse lookup
when starting:
Feb 28 11:40:43 beast sendmail[276]:
gethostbyaddr(3ffe:2900:fffa:2:2a0:c9ff:fe8d:7c5f) failed: 2
At first I thought something is wrong with my ipv6 dns setup, but it turned
out that if a program is linked shared the first getipnodebyaddr() it does
will succeed, but the rest fail. For a staticly linked program all of
them will succeed:
So it's in -CURRENT too. -STABLE users have been complaining of a
similar problem since about the 20th/21st of Feb.
I was damned lucky that I skimmed:
http://www.mail-archive.com/freebsd-stable%40freebsd.org/
before I built a -STABLE system today.
I'm cross posting to stable so others can try your program.
And I wont install my -CURRENT buildworld.
#include sys/types.h
#include sys/socket.h
#include netinet/in.h
#include arpa/inet.h
#include netdb.h
#include stdio.h
int main(int argc, char **argv)
{
struct hostent *he;
int h_err;
u_char ipnum[16];
char *astr1;
astr1 = "146.64.24.3";
h_err = inet_pton(AF_INET, astr1, ipnum);
if(h_err == 0) {
printf("conversion error with inet_pton()\n");
exit(1);
}
he = getipnodebyaddr(ipnum, 4, AF_INET, h_err);
if(he == NULL) {
printf("Oops: %d.\n", h_err);
herror("getipnodebyaddr");
} else
printf("And the answer is: %s\n", he-h_name);
he = getipnodebyaddr(ipnum, 4, AF_INET, h_err);
if(he == NULL) {
printf("Oops: %d.\n", h_err);
herror("getipnodebyaddr");
} else
printf("And the answer is: %s\n", he-h_name);
return 0;
}
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with "unsubscribe freebsd-current" in the body of the message
Re: resolver problem with shared linked programs
* Matthew Thyer [EMAIL PROTECTED] [010228 07:26]:
John Hay wrote:
I noticed that sendmail started to complain of a failed reverse lookup
when starting:
Feb 28 11:40:43 beast sendmail[276]:
gethostbyaddr(3ffe:2900:fffa:2:2a0:c9ff:fe8d:7c5f) failed: 2
At first I thought something is wrong with my ipv6 dns setup, but it turned
out that if a program is linked shared the first getipnodebyaddr() it does
will succeed, but the rest fail. For a staticly linked program all of
them will succeed:
So it's in -CURRENT too. -STABLE users have been complaining of a
similar problem since about the 20th/21st of Feb.
I was damned lucky that I skimmed:
http://www.mail-archive.com/freebsd-stable%40freebsd.org/
before I built a -STABLE system today.
I'm cross posting to stable so others can try your program.
Bingo. It breaks on -STABLE too.
LER
$ uname -a
FreeBSD lerbsd.lerctr.org 4.2-STABLE FreeBSD 4.2-STABLE #108: Tue Feb
27 22:28:4
0 CST 2001 [EMAIL PROTECTED]:/usr/src/sys/compile/LERBSD i386
$ cc -O -static -o x x.c
$ ./x
And the answer is: beast.icomtek.csir.co.za
And the answer is: beast.icomtek.csir.co.za
$ cc -O -o x x.c
$ time ./x
And the answer is: beast.icomtek.csir.co.za
Oops: 2.
getipnodebyaddr: Host name lookup failure
81.12s real 0.00s user 0.00s system
$
And I wont install my -CURRENT buildworld.
#include sys/types.h
#include sys/socket.h
#include netinet/in.h
#include arpa/inet.h
#include netdb.h
#include stdio.h
int main(int argc, char **argv)
{
struct hostent *he;
int h_err;
u_char ipnum[16];
char *astr1;
astr1 = "146.64.24.3";
h_err = inet_pton(AF_INET, astr1, ipnum);
if(h_err == 0) {
printf("conversion error with inet_pton()\n");
exit(1);
}
he = getipnodebyaddr(ipnum, 4, AF_INET, h_err);
if(he == NULL) {
printf("Oops: %d.\n", h_err);
herror("getipnodebyaddr");
} else
printf("And the answer is: %s\n", he-h_name);
he = getipnodebyaddr(ipnum, 4, AF_INET, h_err);
if(he == NULL) {
printf("Oops: %d.\n", h_err);
herror("getipnodebyaddr");
} else
printf("And the answer is: %s\n", he-h_name);
return 0;
}
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-stable" in the body of the message
--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 972-414-9812 E-Mail: [EMAIL PROTECTED]
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-current" in the body of the message
Re: resolver problem with shared linked programs
In article local.mail.freebsd-current/[EMAIL PROTECTED] you write: At first I thought something is wrong with my ipv6 dns setup, but it turned out that if a program is linked shared the first getipnodebyaddr() it does will succeed, but the rest fail. For a staticly linked program all of them will succeed: I just fixed this a few minutes ago. -- Jonathan To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: resolver problem with shared linked programs
* Larry Rosenman [EMAIL PROTECTED] [010228 09:37]:
* Matthew Thyer [EMAIL PROTECTED] [010228 07:26]:
John Hay wrote:
I noticed that sendmail started to complain of a failed reverse lookup
when starting:
Feb 28 11:40:43 beast sendmail[276]:
gethostbyaddr(3ffe:2900:fffa:2:2a0:c9ff:fe8d:7c5f) failed: 2
At first I thought something is wrong with my ipv6 dns setup, but it turned
out that if a program is linked shared the first getipnodebyaddr() it does
will succeed, but the rest fail. For a staticly linked program all of
them will succeed:
So it's in -CURRENT too. -STABLE users have been complaining of a
similar problem since about the 20th/21st of Feb.
I was damned lucky that I skimmed:
http://www.mail-archive.com/freebsd-stable%40freebsd.org/
before I built a -STABLE system today.
I'm cross posting to stable so others can try your program.
Bingo. It breaks on -STABLE too.
LER
$ uname -a
FreeBSD lerbsd.lerctr.org 4.2-STABLE FreeBSD 4.2-STABLE #108: Tue Feb
27 22:28:4
0 CST 2001 [EMAIL PROTECTED]:/usr/src/sys/compile/LERBSD i386
$ cc -O -static -o x x.c
$ ./x
And the answer is: beast.icomtek.csir.co.za
And the answer is: beast.icomtek.csir.co.za
$ cc -O -o x x.c
$ time ./x
And the answer is: beast.icomtek.csir.co.za
Oops: 2.
getipnodebyaddr: Host name lookup failure
81.12s real 0.00s user 0.00s system
Jonathan Lemon's res_send.c fix fixes this:
Welcome to FreeBSD!
$ ./x
And the answer is: beast.icomtek.csir.co.za
And the answer is: beast.icomtek.csir.co.za
$ cc -O -o x x.c
$ ./x
And the answer is: beast.icomtek.csir.co.za
And the answer is: beast.icomtek.csir.co.za
$ time ./x
And the answer is: beast.icomtek.csir.co.za
And the answer is: beast.icomtek.csir.co.za
0.00s real 0.00s user 0.00s system
$
$
And I wont install my -CURRENT buildworld.
#include sys/types.h
#include sys/socket.h
#include netinet/in.h
#include arpa/inet.h
#include netdb.h
#include stdio.h
int main(int argc, char **argv)
{
struct hostent *he;
int h_err;
u_char ipnum[16];
char *astr1;
astr1 = "146.64.24.3";
h_err = inet_pton(AF_INET, astr1, ipnum);
if(h_err == 0) {
printf("conversion error with inet_pton()\n");
exit(1);
}
he = getipnodebyaddr(ipnum, 4, AF_INET, h_err);
if(he == NULL) {
printf("Oops: %d.\n", h_err);
herror("getipnodebyaddr");
} else
printf("And the answer is: %s\n", he-h_name);
he = getipnodebyaddr(ipnum, 4, AF_INET, h_err);
if(he == NULL) {
printf("Oops: %d.\n", h_err);
herror("getipnodebyaddr");
} else
printf("And the answer is: %s\n", he-h_name);
return 0;
}
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-stable" in the body of the message
--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 972-414-9812 E-Mail: [EMAIL PROTECTED]
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-stable" in the body of the message
--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 972-414-9812 E-Mail: [EMAIL PROTECTED]
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-current" in the body of the message
