Adding upstream version 1:4.8.1.upstream/1%4.8.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 268 insertions, 0 deletions

diff --git a/lib/shadowio.c b/lib/shadowio.c
new file mode 100644
index 0000000..676b1f1
--- /dev/null
+++ b/lib/shadowio.c
@@ -0,0 +1,268 @@
+/*
+ * Copyright (c) 1990 - 1994, Julianne Frances Haugh
+ * Copyright (c) 1996 - 2000, Marek Michałkiewicz
+ * Copyright (c) 2001       , Michał Moskal
+ * Copyright (c) 2005       , Tomasz Kłoczko
+ * Copyright (c) 2007 - 2009, Nicolas François
+ * 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. The name of the copyright holders or contributors may not be used to
+ *    endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT
+ * HOLDERS 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 <config.h>
+
+#ident "$Id$"
+
+#include "prototypes.h"
+#include "defines.h"
+#include <shadow.h>
+#include <stdio.h>
+#include "commonio.h"
+#include "getdef.h"
+#include "shadowio.h"
+#ifdef WITH_TCB
+#include <tcb.h>
+#include "tcbfuncs.h"
+#endif				/* WITH_TCB */
+
+static /*@null@*/ /*@only@*/void *shadow_dup (const void *ent)
+{
+	const struct spwd *sp = ent;
+
+	return __spw_dup (sp);
+}
+
+static void shadow_free (/*@out@*//*@only@*/void *ent)
+{
+	struct spwd *sp = ent;
+
+	spw_free (sp);
+}
+
+static const char *shadow_getname (const void *ent)
+{
+	const struct spwd *sp = ent;
+
+	return sp->sp_namp;
+}
+
+static void *shadow_parse (const char *line)
+{
+	return (void *) sgetspent (line);
+}
+
+static int shadow_put (const void *ent, FILE * file)
+{
+	const struct spwd *sp = ent;
+
+	if (   (NULL == sp)
+	    || (valid_field (sp->sp_namp, ":\n") == -1)
+	    || (valid_field (sp->sp_pwdp, ":\n") == -1)) {
+		return -1;
+	}
+
+	return (putspent (sp, file) == -1) ? -1 : 0;
+}
+
+static struct commonio_ops shadow_ops = {
+	shadow_dup,
+	shadow_free,
+	shadow_getname,
+	shadow_parse,
+	shadow_put,
+	fgets,
+	fputs,
+	NULL,			/* open_hook */
+	NULL			/* close_hook */
+};
+
+static struct commonio_db shadow_db = {
+	SHADOW_FILE,		/* filename */
+	&shadow_ops,		/* ops */
+	NULL,			/* fp */
+#ifdef WITH_SELINUX
+	NULL,			/* scontext */
+#endif				/* WITH_SELINUX */
+	0400,                   /* st_mode */
+	0,                      /* st_uid */
+	0,                      /* st_gid */
+	NULL,			/* head */
+	NULL,			/* tail */
+	NULL,			/* cursor */
+	false,			/* changed */
+	false,			/* isopen */
+	false,			/* locked */
+	false,			/* readonly */
+	false			/* setname */
+};
+
+int spw_setdbname (const char *filename)
+{
+	return commonio_setname (&shadow_db, filename);
+}
+
+/*@observer@*/const char *spw_dbname (void)
+{
+	return shadow_db.filename;
+}
+
+bool spw_file_present (void)
+{
+	if (getdef_bool ("FORCE_SHADOW"))
+		return true;
+	return commonio_present (&shadow_db);
+}
+
+int spw_lock (void)
+{
+#ifdef WITH_TCB
+	int retval = 0;
+
+	if (!getdef_bool ("USE_TCB")) {
+#endif				/* WITH_TCB */
+		return commonio_lock (&shadow_db);
+#ifdef WITH_TCB
+	}
+	if (shadowtcb_drop_priv () == SHADOWTCB_FAILURE) {
+		return 0;
+	}
+	if (lckpwdf_tcb (shadow_db.filename) == 0) {
+		shadow_db.locked = 1;
+		retval = 1;
+	}
+	if (shadowtcb_gain_priv () == SHADOWTCB_FAILURE) {
+		return 0;
+	}
+	return retval;
+#endif				/* WITH_TCB */
+}
+
+int spw_open (int mode)
+{
+	int retval = 0;
+#ifdef WITH_TCB
+	bool use_tcb = getdef_bool ("USE_TCB");
+
+	if (use_tcb && (shadowtcb_drop_priv () == SHADOWTCB_FAILURE)) {
+		return 0;
+	}
+#endif				/* WITH_TCB */
+	retval = commonio_open (&shadow_db, mode);
+#ifdef WITH_TCB
+	if (use_tcb && (shadowtcb_gain_priv () == SHADOWTCB_FAILURE)) {
+		return 0;
+	}
+#endif				/* WITH_TCB */
+	return retval;
+}
+
+/*@observer@*/ /*@null@*/const struct spwd *spw_locate (const char *name)
+{
+	return commonio_locate (&shadow_db, name);
+}
+
+int spw_update (const struct spwd *sp)
+{
+	return commonio_update (&shadow_db, (const void *) sp);
+}
+
+int spw_remove (const char *name)
+{
+	return commonio_remove (&shadow_db, name);
+}
+
+int spw_rewind (void)
+{
+	return commonio_rewind (&shadow_db);
+}
+
+/*@observer@*/ /*@null@*/const struct spwd *spw_next (void)
+{
+	return commonio_next (&shadow_db);
+}
+
+int spw_close (void)
+{
+	int retval = 0;
+#ifdef WITH_TCB
+	bool use_tcb = getdef_bool ("USE_TCB");
+
+	if (use_tcb && (shadowtcb_drop_priv () == SHADOWTCB_FAILURE)) {
+		return 0;
+	}
+#endif				/* WITH_TCB */
+	retval = commonio_close (&shadow_db);
+#ifdef WITH_TCB
+	if (use_tcb && (shadowtcb_gain_priv () == SHADOWTCB_FAILURE)) {
+		return 0;
+	}
+#endif				/* WITH_TCB */
+	return retval;
+}
+
+int spw_unlock (void)
+{
+#ifdef WITH_TCB
+	int retval = 0;
+
+	if (!getdef_bool ("USE_TCB")) {
+#endif				/* WITH_TCB */
+		return commonio_unlock (&shadow_db);
+#ifdef WITH_TCB
+	}
+	if (shadowtcb_drop_priv () == SHADOWTCB_FAILURE) {
+		return 0;
+	}
+	if (ulckpwdf_tcb () == 0) {
+		shadow_db.locked = 0;
+		retval = 1;
+	}
+	if (shadowtcb_gain_priv () == SHADOWTCB_FAILURE) {
+		return 0;
+	}
+	return retval;
+#endif				/* WITH_TCB */
+}
+
+struct commonio_entry *__spw_get_head (void)
+{
+	return shadow_db.head;
+}
+
+void __spw_del_entry (const struct commonio_entry *ent)
+{
+	commonio_del_entry (&shadow_db, ent);
+}
+
+/* Sort with respect to passwd ordering. */
+int spw_sort ()
+{
+#ifdef WITH_TCB
+	if (getdef_bool ("USE_TCB")) {
+		return 0;
+	}
+#endif				/* WITH_TCB */
+	return commonio_sort_wrt (&shadow_db, __pw_get_db ());
+}