Correct various bugs in the recovery mechanism

The namespace of the selected mailbox was not properly applied after
recovery, CRAM-MD5 authentication during the recovery would fail, and
searching after recovery could fail in some cases.

src/request.c

@@ -209,8 +209,8 @@ request_login(session **ssnptr, const char *server, const char *port, const
 			CHECK(t = send_request(ssn, "AUTHENTICATE CRAM-MD5"));
 			CHECK(r = response_authenticate(ssn, t, &in));
 			if (r == STATUS_CONTINUE) {
-				if ((out = auth_cram_md5(user, pass, in)) ==
-				    NULL)
+				if ((out = auth_cram_md5(ssn->username,
+				    ssn->password, in)) == NULL)
 					goto abort;
 				CHECK(send_continuation(ssn, (char *)(out),
 				    strlen((char *)(out))));
@@ -239,14 +239,16 @@ request_login(session **ssnptr, const char *server, const char *port, const
 	CHECK(t = send_request(ssn, "CAPABILITY"));
 	CHECK(response_capability(ssn, t));
 
-	if (!ssn->ns.delim && ssn->capabilities & CAPABILITY_NAMESPACE &&
+	if (ssn->capabilities & CAPABILITY_NAMESPACE &&
 	    get_option_boolean("namespace")) {
 		CHECK(t = send_request(ssn, "NAMESPACE"));
 		CHECK(response_namespace(ssn, t));
 	}
 
 	if (ssn->selected) {
-		CHECK(t = send_request(ssn, "SELECT \"%s\"", ssn->selected));
+		CHECK(t = send_request(ssn, "SELECT \"%s\"",
+		    apply_namespace(ssn->selected, ssn->ns.prefix,
+		    ssn->ns.delim)));
 		CHECK(response_select(ssn, t));
 	}
 
@@ -318,7 +320,7 @@ request_select(session *ssn, const char *mbox)
 	TRY(r = response_select(ssn, t));
 
 	if (r == STATUS_OK)
-		ssn->selected = mbox;
+		ssn->selected = xstrdup(mbox);
 	
 	return r;
 }
@@ -335,8 +337,10 @@ request_close(session *ssn)
 	TRY(t = send_request(ssn, "CLOSE"));
 	TRY(r = response_generic(ssn, t));
 
-	if (r == STATUS_OK && ssn->selected)
+	if (r == STATUS_OK && ssn->selected) {
+		xfree(ssn->selected);
 		ssn->selected = NULL;
+	}
 
 	return r;
 }

src/response.c

@@ -381,6 +381,8 @@ response_namespace(session *ssn, int tag)
 	if (r == -1 || r == STATUS_BYE)
 		return r;
 
+	if (ssn->ns.prefix != NULL)
+		xfree(ssn->ns.prefix);
 	ssn->ns.prefix = NULL;
 	ssn->ns.delim = '\0';
 
@@ -576,13 +578,13 @@ response_search(session *ssn, int tag, char **mesgs)
 	re = &responses[RESPONSE_SEARCH];
 
 	b = ibuf.data;
-	m = NULL;
 	while (!regexec(re->preg, b, re->nmatch, re->pmatch, 0)) {
 		if (!*mesgs) {
-			m = *mesgs = (char *)xmalloc((ibuf.len + 1) *
+			*mesgs = (char *)xmalloc((ibuf.len + 1) *
 			    sizeof(char));
-			*m = '\0';
 		}
+		m = *mesgs;
+		*m = '\0';
 
 		min = (unsigned int)(re->pmatch[1].rm_eo -
 		    re->pmatch[1].rm_so) < ibuf.len ?

src/session.c

@@ -64,5 +64,7 @@ session_destroy(session *ssn)
 
 	if (ssn->ns.prefix)
 		xfree(ssn->ns.prefix);
+	if (ssn->selected)
+		xfree(ssn->selected);
 	xfree(ssn);
 }

src/session.h

@@ -21,7 +21,7 @@ typedef struct session {
 		char *prefix;	/* Namespace prefix. */
 		char delim;	/* Namespace delimiter. */
 	} ns;
-	const char *selected;	/* Selected mailbox. */
+	char *selected;	/* Selected mailbox. */
 } session;