Hi,
Finally I'm taking a closer look at replacing ssmtp with busybox
sendmail. Attatched is a patch (against 1.12.0) with what i needed to
make it work.
Most serious issue was the fact that current bb sendmail uses the from
address in the EHLO/HELO message. The rfc1869 (section 4.2) says it
should be a domain not an address. So my MTA correctly dicarded the
invalid EHLO. I solved this by using the domain part in the from
address. This requires that the from address has an '@' which i think is
ok in todays world (10 years ago it would be different)
Seconly, I added an -o option thats just ignored. It allows you to be
somewhat compatible: sendmail -oi ...
Third, the enviroment variable HOSTNAME is a "reserverd" variable for
bash so I changed it to SMTPHOST.
Sendmail is a good addition to busybox. Thanks!
-nc
--- busybox-1.12.0.orig/networking/sendmail.c 2008-08-10 20:46:41 +0000
+++ busybox-1.12.0/networking/sendmail.c 2008-09-24 13:37:20 +0000
@@ -319,7 +319,7 @@
// save initial stdin since body is piped!
xdup2(STDIN_FILENO, INITIAL_STDIN_FILENO);
opt_complementary = "w+:a::";
- options = "w:H:St" "s:c:a:iN:f:";
+ options = "w:H:St" "s:c:a:iN:f:o";
// body is pseudo attachment read from stdin
llist_add_to_end(&opt_attachments, (char *)"-");
} else {
@@ -336,9 +336,9 @@
argv += optind;
// connect to server
- // host[:port] not specified ? -> use $HOSTNAME. no $HOSTNAME ? -> use localhost
+ // host[:port] not specified ? -> use $SMTPHOST. no $SMTPHOST ? -> use localhost
if (!(opts & OPT_H)) {
- opt_connect = getenv("HOSTNAME");
+ opt_connect = getenv("SMTPHOST");
if (!opt_connect)
opt_connect = "127.0.0.1";
}
@@ -381,15 +381,20 @@
char *q;
llist_t *l;
llist_t *headers = NULL;
+ char *domain;
// got no sender address? -> use username as a resort
if (!(opts & OPTS_f)) {
- char *domain = safe_getdomainname();
+ domain = safe_getdomainname();
opt_from = xasprintf("[EMAIL PROTECTED]", opt_user, domain);
if (ENABLE_FEATURE_CLEAN_UP)
free(domain);
}
-
+ domain = strchr(opt_from, '@');
+ if (!domain)
+ bb_error_msg_and_die("no @ in sender");
+ domain++;
+
// introduce to server
// we didn't use SSL helper? ->
@@ -399,8 +404,8 @@
}
// we should start with modern EHLO
- if (250 != smtp_checkp("EHLO %s", sane(opt_from), -1)) {
- smtp_checkp("HELO %s", opt_from, 250);
+ if (250 != smtp_checkp("EHLO %s", domain, -1)) {
+ smtp_checkp("HELO %s", domain, 250);
}
// set sender
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