Does this return on all tha associated IPs on the same interface, When I checked it's only returning the primary one...?

Hi Murarisetty,

I think I am missing a context here. What do you mean? The C function getifaddrs()? As far as I know, it doesn't exist on AIX in the standard package. Can you give more details what you want to achieve?

Does this return on all tha associated IPs on the same interface, When I checked it's only returning the primary one...?

hey Andrey, I want to achieve the list of all active IP's  on particular interface
From below I want to get both the IP's(10.30.4.70,10.30.4.71) for one use case for my server, to get the IP's I was using QNetworkInterface::allAddresses(); and it's working fine on LINUX but not working on AIX. I added some logs and it is returning only the first IP.

en3: flags=1e084863,18c0<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),LARGESEND,CHAIN>
        inet 10.30.4.70 netmask 0xfffffe00 broadcast 10.30.5.255
        inet 10.30.4.71 netmask 0xa1e05ff broadcast 255.255.254.71
         tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1

Hi Murarisetty,

I think I am missing a context here. What do you mean? The C function getifaddrs()? As far as I know, it doesn't exist on AIX in the standard package. Can you give more details what you want to achieve?

Does this return on all tha associated IPs on the same interface, When I checked it's only returning the primary one...?

Does that second address work? Can you connect to it?
inet 10.30.4.71 netmask 0xa1e05ff broadcast 255.255.254.71

The netmask looks bad.

hey Andrey, I want to achieve the list of all active IP's  on particular interface
From below I want to get both the IP's(10.30.4.70,10.30.4.71) for one use case for my server, to get the IP's I was using QNetworkInterface::allAddresses(); and it's working fine on LINUX but not working on AIX. I added some logs and it is returning only the first IP.

en3: flags=1e084863,18c0<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),LARGESEND,CHAIN>
        inet 10.30.4.70 netmask 0xfffffe00 broadcast 10.30.5.255
        inet 10.30.4.71 netmask 0xa1e05ff broadcast 255.255.254.71
         tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1

Hi Murarisetty,

I think I am missing a context here. What do you mean? The C function getifaddrs()? As far as I know, it doesn't exist on AIX in the standard package. Can you give more details what you want to achieve?

Does this return on all tha associated IPs on the same interface, When I checked it's only returning the primary one...?

Does that second address work? Can you connect to it?
inet 10.30.4.71 netmask 0xa1e05ff broadcast 255.255.254.71

The netmask looks bad.

hey Andrey, I want to achieve the list of all active IP's  on particular interface
From below I want to get both the IP's(10.30.4.70,10.30.4.71) for one use case for my server, to get the IP's I was using QNetworkInterface::allAddresses(); and it's working fine on LINUX but not working on AIX. I added some logs and it is returning only the first IP.

en3: flags=1e084863,18c0<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),LARGESEND,CHAIN>
        inet 10.30.4.70 netmask 0xfffffe00 broadcast 10.30.5.255
        inet 10.30.4.71 netmask 0xa1e05ff broadcast 255.255.254.71
         tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1

Hi Murarisetty,

I think I am missing a context here. What do you mean? The C function getifaddrs()? As far as I know, it doesn't exist on AIX in the standard package. Can you give more details what you want to achieve?

Does this return on all tha associated IPs on the same interface, When I checked it's only returning the primary one...?

Hi Murarisetty,

I think I am missing a context here. What do you mean? The C function getifaddrs()? As far as I know, it doesn't exist on AIX in the standard package. Can you give more details what you want to achieve?

Does this return on all tha associated IPs on the same interface, When I checked it's only returning the primary one...?

Hi Andrey, it seems to be a recent addition to AIX.  Either to be compatible with BSD or glibc.

I find it in /usr/lib/libifaddrs.{a,exp} - exporting 2 symbols: getifaddrs, freeifaddrs - on AIX 7300-03-00-2446 and 7300-02-02-2420.  It's provided by bos.net.tcp.server_core, but not documented.

From it's history: 

This function first appeared in BSDi and ispresent on the BSD systems, but with slightly differentsemantics documented\[em]returning one entry per interface,not per address.

https://linux.die.net/man/3/getifaddrs 
https://man.freebsd.org/cgi/man.cgi?getifaddrs

Hi Murarisetty,

I think I am missing a context here. What do you mean? The C function getifaddrs()? As far as I know, it doesn't exist on AIX in the standard package. Can you give more details what you want to achieve?

Does this return on all tha associated IPs on the same interface, When I checked it's only returning the primary one...?

HI Jose, I understood but my concern is why in AIX, not able to list all IPs on the same interface,

Those IPs are dummy one's and I tested the same in LINUX, we are able to get all the list of IP's and then I can use for my server

QNetworkInterface::allAddresses();, This is what I was using earlier on my Linux machine

Hi Andrey, it seems to be a recent addition to AIX.  Either to be compatible with BSD or glibc.

I find it in /usr/lib/libifaddrs.{a,exp} - exporting 2 symbols: getifaddrs, freeifaddrs - on AIX 7300-03-00-2446 and 7300-02-02-2420.  It's provided by bos.net.tcp.server_core, but not documented.

From it's history: 

This function first appeared in BSDi and ispresent on the BSD systems, but with slightly differentsemantics documented\[em]returning one entry per interface,not per address.

https://linux.die.net/man/3/getifaddrs 
https://man.freebsd.org/cgi/man.cgi?getifaddrs

Hi Murarisetty,

I think I am missing a context here. What do you mean? The C function getifaddrs()? As far as I know, it doesn't exist on AIX in the standard package. Can you give more details what you want to achieve?

Does this return on all tha associated IPs on the same interface, When I checked it's only returning the primary one...?

Hi Andrey, it seems to be a recent addition to AIX.  Either to be compatible with BSD or glibc.

I find it in /usr/lib/libifaddrs.{a,exp} - exporting 2 symbols: getifaddrs, freeifaddrs - on AIX 7300-03-00-2446 and 7300-02-02-2420.  It's provided by bos.net.tcp.server_core, but not documented.

From it's history: 

This function first appeared in BSDi and ispresent on the BSD systems, but with slightly differentsemantics documented\[em]returning one entry per interface,not per address.

https://linux.die.net/man/3/getifaddrs 
https://man.freebsd.org/cgi/man.cgi?getifaddrs

Hi Murarisetty,

I think I am missing a context here. What do you mean? The C function getifaddrs()? As far as I know, it doesn't exist on AIX in the standard package. Can you give more details what you want to achieve?

Does this return on all tha associated IPs on the same interface, When I checked it's only returning the primary one...?

Hi José,

thank you! Somehow, I missed it. I searched through the headers and didn't find any definitions for the function. Then I looked for exported symbols in libc.a, it was not there either. IBM decided to create a new library...

I did a small test. I created the header file:

#ifndef IFADDRS_H#define IFADDRS_Hstruct ifaddrs{  struct ifaddrs   *ifa_next;  char             *ifa_name;  u_int             ifa_flags;  struct sockaddr  *ifa_addr;  struct sockaddr  *ifa_netmask;  union  {    struct sockaddr *ifu_broadaddr;    struct sockaddr *ifu_dstaddr;  }  ifa_ifu;  void             *ifa_data;};int getifaddrs(struct ifaddrs **ifap);void freeifaddrs(struct ifaddrs *ifap);#endif

I've got the functions definitions from IBM i documentation - https://www.ibm.com/docs/en/i/7.1.0?topic=ssw_ibm_i_71/apis/getifaddrs.html

Then I took the example from the IBM i documentation and compiled it on AIX 7.3 TL3.

# gcc -o ifaddrs ifaddrs.c -lifaddrs

The result is, as Murarisetty reported, without aliases. It shows only the first IP address on the interface.

I took the same code to Linux. The only change - I don't need my getifaddrs.h on Linux. I can use the system file. It showed me the alias on the interface:

Internet Address:  10.10.10.10 LineDescription :  ens192 Netmask         :  255.255.254.0 Broadcast Addr  :  10.10.10.255 Internet Address:  10.20.20.20 LineDescription :  ens192 Netmask         :  255.255.254.0 Broadcast Addr  :  10.20.20.20 

Note that it shows the wrong broadcast address for the alias on Linux.

It looks like the undocumented implementation of getifaddrs() on AIX is buggy. works as designed.

Please open a ticket at IBM...

Hi Andrey, it seems to be a recent addition to AIX.  Either to be compatible with BSD or glibc.

I find it in /usr/lib/libifaddrs.{a,exp} - exporting 2 symbols: getifaddrs, freeifaddrs - on AIX 7300-03-00-2446 and 7300-02-02-2420.  It's provided by bos.net.tcp.server_core, but not documented.

From it's history: 

This function first appeared in BSDi and ispresent on the BSD systems, but with slightly differentsemantics documented\[em]returning one entry per interface,not per address.

https://linux.die.net/man/3/getifaddrs 
https://man.freebsd.org/cgi/man.cgi?getifaddrs

Hi Murarisetty,

I think I am missing a context here. What do you mean? The C function getifaddrs()? As far as I know, it doesn't exist on AIX in the standard package. Can you give more details what you want to achieve?

Does this return on all tha associated IPs on the same interface, When I checked it's only returning the primary one...?