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Diffstat (limited to 'i/pc104/initrd/conf/busybox/libbb/correct_password.c')
-rw-r--r--i/pc104/initrd/conf/busybox/libbb/correct_password.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/libbb/correct_password.c b/i/pc104/initrd/conf/busybox/libbb/correct_password.c
new file mode 100644
index 0000000..c515b26
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/libbb/correct_password.c
@@ -0,0 +1,69 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Copyright 1989 - 1991, Julianne Frances Haugh <jockgrrl@austin.rr.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Julianne F. Haugh nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "libbb.h"
+
+/* Ask the user for a password.
+ Return 1 if the user gives the correct password for entry PW,
+ 0 if not. Return 1 without asking for a password if run by UID 0
+ or if PW has an empty password. */
+
+int correct_password(const struct passwd *pw)
+{
+ char *unencrypted, *encrypted;
+ const char *correct;
+#if ENABLE_FEATURE_SHADOWPASSWDS
+ /* Using _r function to avoid pulling in static buffers */
+ struct spwd spw;
+ struct spwd *result;
+ char buffer[256];
+#endif
+
+ correct = pw->pw_passwd;
+#if ENABLE_FEATURE_SHADOWPASSWDS
+ if (LONE_CHAR(pw->pw_passwd, 'x') || LONE_CHAR(pw->pw_passwd, '*')) {
+ if (getspnam_r(pw->pw_name, &spw, buffer, sizeof(buffer), &result))
+ bb_error_msg("no valid shadow password, checking ordinary one");
+ else
+ correct = spw.sp_pwdp;
+ }
+#endif
+
+ if (!correct || correct[0] == '\0')
+ return 1;
+
+ unencrypted = bb_askpass(0, "Password: ");
+ if (!unencrypted) {
+ return 0;
+ }
+ encrypted = crypt(unencrypted, correct);
+ memset(unencrypted, 0, strlen(unencrypted));
+ return strcmp(encrypted, correct) == 0;
+}