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-rw-r--r--lib/shadowmem.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/shadowmem.c b/lib/shadowmem.c
new file mode 100644
index 0000000..82f99e7
--- /dev/null
+++ b/lib/shadowmem.c
@@ -0,0 +1,68 @@
+/*
+ * SPDX-FileCopyrightText: 1990 - 1994, Julianne Frances Haugh
+ * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz
+ * SPDX-FileCopyrightText: 2001 , Michał Moskal
+ * SPDX-FileCopyrightText: 2005 , Tomasz Kłoczko
+ * SPDX-FileCopyrightText: 2007 - 2013, Nicolas François
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <config.h>
+
+#ident "$Id$"
+
+#include "prototypes.h"
+#include "defines.h"
+#include <shadow.h>
+#include <stdio.h>
+#include "shadowio.h"
+
+/*@null@*/ /*@only@*/struct spwd *__spw_dup (const struct spwd *spent)
+{
+ struct spwd *sp;
+
+ sp = (struct spwd *) malloc (sizeof *sp);
+ if (NULL == sp) {
+ return NULL;
+ }
+ /* The libc might define other fields. They won't be copied. */
+ memset (sp, 0, sizeof *sp);
+ sp->sp_lstchg = spent->sp_lstchg;
+ sp->sp_min = spent->sp_min;
+ sp->sp_max = spent->sp_max;
+ sp->sp_warn = spent->sp_warn;
+ sp->sp_inact = spent->sp_inact;
+ sp->sp_expire = spent->sp_expire;
+ sp->sp_flag = spent->sp_flag;
+ /*@-mustfreeonly@*/
+ sp->sp_namp = strdup (spent->sp_namp);
+ /*@=mustfreeonly@*/
+ if (NULL == sp->sp_namp) {
+ free(sp);
+ return NULL;
+ }
+ /*@-mustfreeonly@*/
+ sp->sp_pwdp = strdup (spent->sp_pwdp);
+ /*@=mustfreeonly@*/
+ if (NULL == sp->sp_pwdp) {
+ free(sp->sp_namp);
+ free(sp);
+ return NULL;
+ }
+
+ return sp;
+}
+
+void spw_free (/*@out@*/ /*@only@*/struct spwd *spent)
+{
+ if (spent != NULL) {
+ free (spent->sp_namp);
+ if (NULL != spent->sp_pwdp) {
+ strzero (spent->sp_pwdp);
+ free (spent->sp_pwdp);
+ }
+ free (spent);
+ }
+}
+