systemcall uname return with errno 72

[mingfuz]

Hi,

For some reason the hostname must change, and it from "jftest1" to "TEST-BILLING-APP-002".
After the chages, my c++ application use systemcall 'uname()' returns errno 72.
It seems the hostname is too long(I found the limit of hostname is 8 characters).

What happened when change the hostname
Here are some informations about the host:
OS info:
Nodename: TEST-BILLING-APP-002
Release: HP-UX B.11.31
Version: U (unlimited-user license)
Machine: ia64

My question:
the function uname() return the struct value:
struct utsname {
char sysname[9];
char nodename[9];
char release[9];
char version[9];
char machine[9];
char __idnumber[15];
};
Which file(s) the values come from?
/etc/hosts or /etc/rc.config.d/netconf?
and what is the relationship of the fields?

[Dennis Handly]

See this recent thread:
http://h30499.www3.hp.com/t5/Languages-and-Scripting/HP-UX-11-23-uname-issue-with-c-programm/m-p/4742994#M29490

HOSTNAME comes from /etc/rc.config.d/netconf. This is used if NODENAME isn't set.

By default, HOSTNAME has a limit of 64 and NODENAME of 8.