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-rw-r--r--src/cerberus.c27
-rw-r--r--src/quit.c48
-rw-r--r--src/quit.h39
3 files changed, 113 insertions, 1 deletions
diff --git a/src/cerberus.c b/src/cerberus.c
index b27b3da..f61f56a 100644
--- a/src/cerberus.c
+++ b/src/cerberus.c
@@ -20,8 +20,16 @@
#include <unistd.h>
#include "passphrase.h"
+#include "quit.h"
+/* The number of seconds before the program times out */
+#ifndef TIMEOUT_SECONDS
+#define TIMEOUT_SECONDS 60
+#endif
+
+
+/* Free if declared */
#define xfree(VAR) ({ if (VAR) free(VAR); })
@@ -102,11 +110,28 @@ int main(int argc, char** argv)
}
- /* Get the passphrase, if -f has not been used */
+ /* Print ant we want a passphrase, if -f has not been used */
if (skip_auth == 0)
{
printf("Passphrase: ");
fflush(stdout);
+ }
+ /* Done early to make to program look like it is even faster than it is */
+
+
+ /* Set up clean quiting and time out */
+ signal(SIGALRM, timeout_quit);
+ signal(SIGQUIT, user_quit);
+ signal(SIGINT, user_quit);
+ siginterrupt(SIGALM, 1);
+ siginterrupt(SIGQUIT, 1);
+ siginterrupt(SIGINT, 1);
+ alarm(TIMEOUT_SECONDS);
+
+
+ /* Get the passphrase, if -f has not been used */
+ if (skip_auth == 0)
+ {
passphrase = get_passphrase();
printf("\n");
}
diff --git a/src/quit.c b/src/quit.c
new file mode 100644
index 0000000..3a0911d
--- /dev/null
+++ b/src/quit.c
@@ -0,0 +1,48 @@
+/**
+ * cerberus – Minimal login program
+ *
+ * Copyright © 2013 Mattias Andrée (maandree@member.fsf.org)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "quit.h"
+
+
+/**
+ * Quit function for timeout
+ *
+ * @param signal The signal the program received
+ */
+void timeout_quit(int signal)
+{
+ (void) signal;
+ printf("\nTimed out.\n");
+ reenable_echo();
+ _exit(10);
+}
+
+
+/**
+ * Quit function for user aborts
+ *
+ * @param signal The signal the program received
+ */
+void user_quit(int signal)
+{
+ (void) signal;
+ printf("\n");
+ reenable_echo();
+ _exit(130);
+}
+
diff --git a/src/quit.h b/src/quit.h
new file mode 100644
index 0000000..93eb799
--- /dev/null
+++ b/src/quit.h
@@ -0,0 +1,39 @@
+/**
+ * cerberus – Minimal login program
+ *
+ * Copyright © 2013 Mattias Andrée (maandree@member.fsf.org)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <stdio.h>
+#include <unistd.h>
+
+#include "passphrase.h"
+
+
+/**
+ * Quit function for timeout
+ *
+ * @param signal The signal the program received
+ */
+void timeout_quit(int signal);
+
+
+/**
+ * Quit function for user aborts
+ *
+ * @param signal The signal the program received
+ */
+void user_quit(int signal);
+