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Diffstat (limited to 'src/transports/ssh.c')
-rw-r--r--src/transports/ssh.c32
1 files changed, 20 insertions, 12 deletions
diff --git a/src/transports/ssh.c b/src/transports/ssh.c
index dea990275..b403727c9 100644
--- a/src/transports/ssh.c
+++ b/src/transports/ssh.c
@@ -387,6 +387,7 @@ static int _git_ssh_setup_conn(
{
char *host=NULL, *port=NULL, *path=NULL, *user=NULL, *pass=NULL;
const char *default_port="22";
+ int no_callback = 0;
ssh_stream *s;
LIBSSH2_SESSION* session=NULL;
LIBSSH2_CHANNEL* channel=NULL;
@@ -413,24 +414,31 @@ static int _git_ssh_setup_conn(
if (user && pass) {
if (git_cred_userpass_plaintext_new(&t->cred, user, pass) < 0)
goto on_error;
- } else if (t->owner->cred_acquire_cb) {
- if (t->owner->cred_acquire_cb(
- &t->cred, t->owner->url, user,
- GIT_CREDTYPE_USERPASS_PLAINTEXT |
- GIT_CREDTYPE_SSH_KEY |
- GIT_CREDTYPE_SSH_INTERACTIVE |
- GIT_CREDTYPE_SSH_CUSTOM,
- t->owner->cred_acquire_payload) < 0)
+ } else if (!t->owner->cred_acquire_cb) {
+ no_callback = 1;
+ } else {
+ int error;
+ error = t->owner->cred_acquire_cb(&t->cred, t->owner->url, user,
+ GIT_CREDTYPE_USERPASS_PLAINTEXT |
+ GIT_CREDTYPE_SSH_KEY | GIT_CREDTYPE_SSH_CUSTOM |
+ GIT_CREDTYPE_SSH_INTERACTIVE,
+ t->owner->cred_acquire_payload);
+
+ if (error == GIT_PASSTHROUGH)
+ no_callback = 1;
+ else if (error < 0)
goto on_error;
-
- if (!t->cred) {
+ else if (!t->cred) {
giterr_set(GITERR_SSH, "Callback failed to initialize SSH credentials");
goto on_error;
}
- } else {
- giterr_set(GITERR_SSH, "Cannot set up SSH connection without credentials");
+ }
+
+ if (no_callback) {
+ giterr_set(GITERR_SSH, "authentication required but no callback set");
goto on_error;
}
+
assert(t->cred);
if (_git_ssh_session_create(&session, s->socket) < 0)