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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2010-09-08 23:21:52 +0800
committerSascha Hauer <s.hauer@pengutronix.de>2010-09-20 08:57:22 +0200
commit8b611f099a5f6e2c69669098f800a954bbb3450d (patch)
treea33ac9c3358555d98a17f868895cdec2bbc3cbcf /commands/passwd.c
parentc83ebb95f10d1fab01395ec3d9c9b4a34224cc98 (diff)
downloadbarebox-8b611f099a5f6e2c69669098f800a954bbb3450d.tar.gz
add passwd command
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'commands/passwd.c')
-rw-r--r--commands/passwd.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/commands/passwd.c b/commands/passwd.c
new file mode 100644
index 0000000..9435091
--- /dev/null
+++ b/commands/passwd.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2008-2010 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <password.h>
+#include <errno.h>
+
+#define PASSWD_MAX_LENGTH (128 + 1)
+
+#if defined(CONFIG_PASSWD_MODE_STAR)
+#define PASSWD_MODE STAR
+#elif defined(CONFIG_PASSWD_MODE_CLEAR)
+#define PASSWD_MODE CLEAR
+#else
+#define PASSWD_MODE HIDE
+#endif
+
+static int do_passwd(struct command *cmdtp, int argc, char *argv[])
+{
+ unsigned char passwd2[PASSWD_MAX_LENGTH];
+ unsigned char passwd1[PASSWD_MAX_LENGTH];
+ int passwd1_len;
+ int passwd2_len;
+ int ret = 1;
+
+ puts("Enter new password: ");
+ passwd1_len = password(passwd1, PASSWD_MAX_LENGTH, PASSWD_MODE);
+
+ if (passwd1_len < 0)
+ return 1;
+
+ puts("Retype new password: ");
+ passwd2_len = password(passwd2, PASSWD_MAX_LENGTH, PASSWD_MODE);
+
+ if (passwd2_len < 0)
+ return 1;
+
+ if (passwd2_len != passwd1_len) {
+ goto err;
+ } else {
+ if (passwd1_len == 0) {
+ ret = 0;
+ goto disable;
+ }
+
+ if (strncmp(passwd1, passwd2, passwd1_len) != 0)
+ goto err;
+ }
+
+ ret = set_passwd(passwd1, passwd1_len);
+
+ if (ret < 0) {
+ puts("Sorry, passwords write failed\n");
+ ret = 1;
+ goto disable;
+ }
+
+ return 0;
+err:
+ puts("Sorry, passwords do not match\n");
+ puts("passwd: password unchanged\n");
+ return 1;
+
+disable:
+ passwd_disable();
+ puts("passwd: password disabled\n");
+ return ret;
+}
+
+static const __maybe_unused char cmd_passwd_help[] =
+"Usage: passwd\n"
+"passwd allow you to specify a password\n"
+"to disable it put an empty password\n"
+;
+
+BAREBOX_CMD_START(passwd)
+ .cmd = do_passwd,
+ .usage = "passwd",
+ BAREBOX_CMD_HELP(cmd_passwd_help)
+BAREBOX_CMD_END