According to RFC 5321 the argument to HELO "contains the fully-qualified
domain name of the SMTP client" or its IP address if no FQDN is available.
BusyBox sendmail uses the NIS domain name instead which, in many cases,
is likely to be the default "(none)". [vda: yes, I checked my machine
and its uts.domainname was indeed "(none)"]
Using the host name is more likely to satisfy the intent of the RFC while
allowing the otherwise unused safe_getdomainname function to be removed.
Signed-off-by: Ron Yorston <rmy@tigress.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Here comes the third part of compatibility patch for sendmail.
* Introduced new safe_getdomainname() -- will it be useful?
* Fixed SEGV if sender address is missed. Should snoop for sender address in mail headers?
* More compat: use HOSTNAME instead of HOST when no server is explicitly specified.
* crond: fixed mail recipient address.
function old new delta
safe_getdomainname - 56 +56
sendgetmail_main 1937 1946 +9
grep_file 846 850 +4
crond_main 1423 1425 +2
xstrtoull_range_sfx 295 296 +1
utoa_to_buf 110 108 -2
passwd_main 1053 1049 -4
sv_main 1234 1228 -6
parse_expr 841 833 -8
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(add/remove: 1/0 grow/shrink: 4/4 up/down: 72/-20) Total: 52 bytes
