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Mail: handle smtp multiline replies.

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See here for details:

http://nginx.org/pipermail/nginx/2010-August/021713.html
http://nginx.org/pipermail/nginx/2010-August/021784.html
http://nginx.org/pipermail/nginx/2010-August/021785.html
This commit is contained in:
Maxim Dounin 2013-09-30 22:10:03 +04:00
parent 4f6f653f48
commit f2b5192c30
1 changed files with 20 additions and 1 deletions
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21
src/mail/ngx_mail_proxy_module.c
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@ -707,7 +707,7 @@ ngx_mail_proxy_dummy_handler(ngx_event_t *wev)
static ngx_int_t static ngx_int_t
ngx_mail_proxy_read_response(ngx_mail_session_t *s, ngx_uint_t state) ngx_mail_proxy_read_response(ngx_mail_session_t *s, ngx_uint_t state)
{ {
u_char *p; u_char *p, *m;
ssize_t n; ssize_t n;
ngx_buf_t *b; ngx_buf_t *b;
ngx_mail_proxy_conf_t *pcf; ngx_mail_proxy_conf_t *pcf;
@ -784,6 +784,25 @@ ngx_mail_proxy_read_response(ngx_mail_session_t *s, ngx_uint_t state)
break; break;
default: /* NGX_MAIL_SMTP_PROTOCOL */ default: /* NGX_MAIL_SMTP_PROTOCOL */
if (p[3] == '-') {
/* multiline reply, check if we got last line */
m = b->last - (sizeof(CRLF "200" CRLF) - 1);
while (m > p) {
if (m[0] == CR && m[1] == LF) {
break;
}
m--;
}
if (m <= p || m[5] == '-') {
return NGX_AGAIN;
}
}
switch (state) { switch (state) {
case ngx_smtp_start: case ngx_smtp_start: