Bug still present.
$ dpkg -l libc6
[...]
ii libc6:amd64 2.17-93ubuntu4
amd64
$ grep hosts /etc/nsswitch.conf
hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4
$ sudo su
# ./a.out
Making resolv.conf empty
Results of looking up www.google.com: status = -2, errno = 2
Results of looking up a bogus name: status = -2, errno = 2
Writing correct nameserver option to resolv.conf
Results of looking up www.google.com: status = 0, errno = 101
Results of looking up a bogus name: status = -2, errno = 2
Writing incorrect nameserver option to resolv.conf
Results of looking up www.google.com: status = -2, errno = 2
Results of looking up a bogus name: status = -2, errno = 2
# ifconfig eth0 down
# ./a.out
Making resolv.conf empty
Results of looking up www.google.com: status = -5, errno = 110
Results of looking up a bogus name: status = -5, errno = 110
Writing correct nameserver option to resolv.conf
Results of looking up www.google.com: status = -5, errno = 110
Results of looking up a bogus name: status = -5, errno = 110
Writing incorrect nameserver option to resolv.conf
Results of looking up www.google.com: status = -5, errno = 110
Results of looking up a bogus name: status = -5, errno = 110
# cat x.c
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <errno.h>
#include <stdio.h>
struct addrinfo *res;
void check_google()
{
int status;
status = getaddrinfo("www.google.com", NULL, NULL, &res);
printf("Results of looking up www.google.com: status = %d, errno = %d\n",
status, errno);
status = getaddrinfo("sjfkdsjfswfloo0f02938sjf28398sd.com", NULL, NULL,
&res);
printf("Results of looking up a bogus name: status = %d, errno = %d\n",
status, errno);
}
int main()
{
FILE *fp;
printf("Making resolv.conf empty\n");
fp = fopen("/etc/resolv.conf", "w+"); fclose(fp);
sleep(1);
check_google();
printf("Writing nameserver option to resolv.conf\n");
fp = fopen("/etc/resolv.conf", "w+"); fprintf(fp, "nameserver
193.67.79.39\n"); fclose(fp);
sleep(1);
check_google();
printf("Writing incorrect nameserver option to resolv.conf\n");
fp = fopen("/etc/resolv.conf", "w+"); fprintf(fp, "nameserver
192.168.5.4\n"); fclose(fp);
sleep(1);
check_google();
}
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https://bugs.launchpad.net/bugs/1154599
Title:
getaddrinfo() returns -11 (EAI_SYSTEM) instead of -2
To manage notifications about this bug go to:
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