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Diffstat (limited to 'i/pc104/initrd/conf/busybox/libbb/change_identity.c')
-rw-r--r--i/pc104/initrd/conf/busybox/libbb/change_identity.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/libbb/change_identity.c b/i/pc104/initrd/conf/busybox/libbb/change_identity.c
new file mode 100644
index 0000000..3f888f5
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/libbb/change_identity.c
@@ -0,0 +1,51 @@
+/* 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"
+
+
+/* Become the user and group(s) specified by PW. */
+const char *change_identity_e2str(const struct passwd *pw)
+{
+ if (initgroups(pw->pw_name, pw->pw_gid) == -1)
+ return "cannot set groups";
+ endgrent(); /* ?? */
+ xsetgid(pw->pw_gid);
+ xsetuid(pw->pw_uid);
+ return NULL;
+}
+
+void change_identity(const struct passwd *pw)
+{
+ const char *err_msg = change_identity_e2str(pw);
+
+ if (err_msg)
+ bb_perror_msg_and_die("%s", err_msg);
+}