X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=command.c;h=5b17f116d53c93956faf60f88d903b233b7e9b69;hp=0c257b358cd49db73fc56d590c4c04cf42c53096;hb=HEAD;hpb=75654b1a42daafbf74b46bc49ffdb141c77a4d77

diff --git a/command.c b/command.c
index 0c257b35..60c2aeba 100644
--- a/command.c
+++ b/command.c
@@ -47,12 +47,14 @@ extern struct misc_meta_data *mmd;
 int send_afs_status(struct command_context *cc, int parser_friendly);
 static bool subcmd_should_die;
 
+/*
+ * Don't call PARA_XXX_LOG() here as we might already hold the log mutex. See
+ * generic_signal_handler() for details.
+ */
 static void command_handler_sighandler(int s)
 {
-	if (s != SIGTERM)
-		return;
-	PARA_EMERG_LOG("terminating on signal %d\n", SIGTERM);
-	subcmd_should_die = true;
+	if (s == SIGTERM)
+		subcmd_should_die = true;
 }
 
 /*
@@ -505,6 +507,7 @@ static int com_stat(struct command_context *cc, struct lls_parse_result *lpr)
 	 * while we sleep.
 	 */
 	para_block_signal(SIGTERM);
+	para_block_signal(SIGUSR1);
 	for (;;) {
 		sigset_t set;
 		/*
@@ -536,8 +539,10 @@ static int com_stat(struct command_context *cc, struct lls_parse_result *lpr)
 		 * open a race window similar to the one described above.
 		 */
 		pselect(1, NULL, NULL, NULL, &ts, &set);
-		if (subcmd_should_die)
+		if (subcmd_should_die) {
+			PARA_EMERG_LOG("terminating on SIGTERM\n");
 			goto out;
+		}
 		ret = -E_SERVER_CRASH;
 		if (getppid() == 1)
 			goto out;
@@ -806,19 +811,11 @@ static int parse_auth_request(char *buf, int len, const struct user **u,
 		*p = '\0';
 		p++;
 		create_argv(p, ",", &features);
-		/*
-		 * Still accept sideband and AES feature requests (as a no-op)
-		 * because some 0.6.x clients request them. The two checks
-		 * below may be removed after 0.7.1.
-		 */
 		for (i = 0; features[i]; i++) {
-			if (strcmp(features[i], "sideband") == 0)
-				continue;
-			if (strcmp(features[i], "aes_ctr128") == 0)
-				continue;
 			/*
-			 * ->sha256_requested can go away after 0.7.0 but the
-			 * check has to stay until 0.9.0.
+			 * ->sha256_requested can go away after 0.7.0 so that
+			 * sha256 is used unconditionally, but we need to
+			 * accept the feature request until 0.9.0.
 			 */
 			if (strcmp(features[i], "sha256") == 0)
 				cf->sha256_requested = true;