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Diffstat (limited to 'lib/smtp.c')
-rw-r--r--lib/smtp.c34
1 files changed, 22 insertions, 12 deletions
diff --git a/lib/smtp.c b/lib/smtp.c
index af1eb40f8..49bb7979f 100644
--- a/lib/smtp.c
+++ b/lib/smtp.c
@@ -204,9 +204,8 @@ static const struct Curl_handler Curl_handler_smtps_proxy = {
#endif
/* Function that checks for an ending smtp status code at the start of the
- given string.
- As a side effect, it also flags allowed authentication mechanisms according
- to EHLO AUTH response. */
+ given string, but also detects the supported authentication mechanisms
+ from the EHLO AUTH response. */
static int smtp_endofresp(struct pingpong *pp, int *resp)
{
char *line = pp->linestart_resp;
@@ -302,10 +301,12 @@ static void state(struct connectdata *conn, smtpstate newstate)
"QUIT",
/* LAST */
};
+
if(smtpc->state != newstate)
infof(conn->data, "SMTP %p state change from %s to %s\n",
smtpc, names[smtpc->state], names[newstate]);
#endif
+
smtpc->state = newstate;
}
@@ -492,7 +493,7 @@ static CURLcode smtp_state_starttls_resp(struct connectdata *conn,
else {
if(data->state.used_interface == Curl_if_multi) {
state(conn, SMTP_UPGRADETLS);
- return smtp_state_upgrade_tls(conn);
+ result = smtp_state_upgrade_tls(conn);
}
else {
result = Curl_ssl_connect(conn, FIRSTSOCKET);
@@ -602,6 +603,7 @@ static CURLcode smtp_state_auth_plain_resp(struct connectdata *conn,
if(!result)
state(conn, SMTP_AUTH);
}
+
Curl_safefree(plainauth);
}
}
@@ -638,6 +640,7 @@ static CURLcode smtp_state_auth_login_resp(struct connectdata *conn,
if(!result)
state(conn, SMTP_AUTH_PASSWD);
}
+
Curl_safefree(authuser);
}
}
@@ -674,6 +677,7 @@ static CURLcode smtp_state_auth_passwd_resp(struct connectdata *conn,
if(!result)
state(conn, SMTP_AUTH);
}
+
Curl_safefree(authpasswd);
}
}
@@ -728,6 +732,7 @@ static CURLcode smtp_state_auth_cram_resp(struct connectdata *conn,
if(!result)
state(conn, SMTP_AUTH);
}
+
Curl_safefree(rplyb64);
}
@@ -1114,6 +1119,7 @@ static CURLcode smtp_statemach_act(struct connectdata *conn)
struct pingpong *pp = &smtpc->pp;
size_t nread = 0;
+ /* Busy upgrading the connection; right now all I/O is SSL/TLS, not SMTP */
if(smtpc->state == SMTP_UPGRADETLS)
return smtp_state_upgrade_tls(conn);
@@ -1131,7 +1137,7 @@ static CURLcode smtp_statemach_act(struct connectdata *conn)
data->info.httpcode = smtpcode;
if(smtpcode) {
- /* we have now received a full SMTP server response */
+ /* We have now received a full SMTP server response */
switch(smtpc->state) {
case SMTP_SERVERGREET:
result = smtp_state_servergreet_resp(conn, smtpcode, smtpc->state);
@@ -1250,7 +1256,7 @@ static CURLcode smtp_easy_statemach(struct connectdata *conn)
}
/* Allocate and initialize the SMTP struct for the current SessionHandle if
- * required */
+ required */
static CURLcode smtp_init(struct connectdata *conn)
{
struct SessionHandle *data = conn->data;
@@ -1316,7 +1322,7 @@ static CURLcode smtp_connect(struct connectdata *conn, bool *done)
if((conn->handler->protocol & CURLPROTO_SMTPS) &&
data->state.used_interface != Curl_if_multi) {
/* SMTPS is simply smtp with SSL for the control channel */
- /* now, perform the SSL initialization for this socket */
+ /* so perform the SSL initialization for this socket */
result = Curl_ssl_connect(conn, FIRSTSOCKET);
if(result)
return result;
@@ -1325,11 +1331,13 @@ static CURLcode smtp_connect(struct connectdata *conn, bool *done)
/* Initialise the response reader stuff */
Curl_pp_init(pp);
- pp->response_time = RESP_TIMEOUT; /* set default response time-out */
+ /* Set the default response time-out */
+ pp->response_time = RESP_TIMEOUT;
pp->statemach_act = smtp_statemach_act;
pp->endofresp = smtp_endofresp;
pp->conn = conn;
+ /* Calculate the path if necessary */
if(!*path) {
if(!Curl_gethostname(localhost, sizeof(localhost)))
path = localhost;
@@ -1342,7 +1350,7 @@ static CURLcode smtp_connect(struct connectdata *conn, bool *done)
if(result)
return result;
- /* Set the state as we are waiting the server greeting */
+ /* Start off waiting for the server greeting response */
state(conn, SMTP_SERVERGREET);
if(data->state.used_interface == Curl_if_multi)
@@ -1372,6 +1380,7 @@ static CURLcode smtp_done(struct connectdata *conn, CURLcode status,
struct FTP *smtp = data->state.proto.smtp;
CURLcode result = CURLE_OK;
ssize_t bytes_written;
+
(void)premature;
if(!smtp)
@@ -1457,7 +1466,7 @@ static CURLcode smtp_perform(struct connectdata *conn, bool *connected,
if(result)
return result;
- /* run the state-machine */
+ /* Run the state-machine */
if(conn->data->state.used_interface == Curl_if_multi)
result = smtp_multi_statemach(conn, dophase_done);
else {
@@ -1604,7 +1613,9 @@ static CURLcode smtp_regular_transfer(struct connectdata *conn,
CURLcode result = CURLE_OK;
bool connected = FALSE;
struct SessionHandle *data = conn->data;
- data->req.size = -1; /* make sure this is unknown at this point */
+
+ /* Make sure size is unknown at this point */
+ data->req.size = -1;
Curl_pgrsSetUploadCounter(data, 0);
Curl_pgrsSetDownloadCounter(data, 0);
@@ -1614,7 +1625,6 @@ static CURLcode smtp_regular_transfer(struct connectdata *conn,
result = smtp_perform(conn, &connected, dophase_done);
if(CURLE_OK == result) {
-
if(!*dophase_done)
/* The DO phase has not completed yet */
return CURLE_OK;