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authorSteve Holme <steve_holme@hotmail.com>2020-02-08 00:37:03 +0000
committerSteve Holme <steve_holme@hotmail.com>2020-02-26 11:02:38 +0000
commit2aa6c1735a84f6df11b5f5863a704034b820c925 (patch)
tree15598b3ed7640e57fc6392b9382ecc213a052259 /lib/smtp.c
parente7959c280c0361d2e448776d9ea11305e2f026bc (diff)
downloadcurl-2aa6c1735a84f6df11b5f5863a704034b820c925.tar.gz
smtp: Support UTF-8 based host names in the VRFY command
Diffstat (limited to 'lib/smtp.c')
-rw-r--r--lib/smtp.c34
1 files changed, 28 insertions, 6 deletions
diff --git a/lib/smtp.c b/lib/smtp.c
index 1718cc2db..3c3dfcbd9 100644
--- a/lib/smtp.c
+++ b/lib/smtp.c
@@ -485,13 +485,35 @@ static CURLcode smtp_perform_command(struct connectdata *conn)
struct Curl_easy *data = conn->data;
struct SMTP *smtp = data->req.protop;
- /* Send the command */
- if(smtp->rcpt)
- result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s %s",
- smtp->custom && smtp->custom[0] != '\0' ?
- smtp->custom : "VRFY",
- smtp->rcpt->data);
+ if(smtp->rcpt) {
+ if((!smtp->custom) || (!smtp->custom[0])) {
+ char *address = NULL;
+ struct hostname host = { NULL, NULL, NULL, NULL };
+
+ /* Parse the mailbox to verify into the local address and host name
+ parts, converting the host name to an IDN A-label if necessary */
+ result = smtp_parse_address(conn, smtp->rcpt->data,
+ &address, &host);
+ if(result)
+ return result;
+
+ /* Send the VRFY command (Note: The host name part may be absent when the
+ host is a local system) */
+ result = Curl_pp_sendf(&conn->proto.smtpc.pp, "VRFY %s%s%s",
+ address,
+ host.name ? "@" : "",
+ host.name ? host.name : "");
+
+ Curl_free_idnconverted_hostname(&host);
+ free(address);
+ }
+ else
+ /* Send the custom recipient based command such as the EXPN command */
+ result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s %s", smtp->custom,
+ smtp->rcpt->data);
+ }
else
+ /* Send the non-recipient based command such as HELP */
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s",
smtp->custom && smtp->custom[0] != '\0' ?
smtp->custom : "HELP");