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, 106 insertions, 0 deletions

diff --git a/lib/pwmem.c b/lib/pwmem.c
new file mode 100644
index 0000000..17d2eb2
--- /dev/null
+++ b/lib/pwmem.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 1990 - 1994, Julianne Frances Haugh
+ * Copyright (c) 1996 - 2000, Marek Michałkiewicz
+ * Copyright (c) 2001       , Michał Moskal
+ * Copyright (c) 2003 - 2005, Tomasz Kłoczko
+ * Copyright (c) 2007 - 2013, 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 <stdio.h>
+#include "defines.h"
+#include "prototypes.h"
+#include "pwio.h"
+
+/*@null@*/ /*@only@*/struct passwd *__pw_dup (const struct passwd *pwent)
+{
+	struct passwd *pw;
+
+	pw = (struct passwd *) malloc (sizeof *pw);
+	if (NULL == pw) {
+		return NULL;
+	}
+	/* The libc might define other fields. They won't be copied. */
+	memset (pw, 0, sizeof *pw);
+	pw->pw_uid = pwent->pw_uid;
+	pw->pw_gid = pwent->pw_gid;
+	/*@-mustfreeonly@*/
+	pw->pw_name = strdup (pwent->pw_name);
+	/*@=mustfreeonly@*/
+	if (NULL == pw->pw_name) {
+		pw_free(pw);
+		return NULL;
+	}
+	/*@-mustfreeonly@*/
+	pw->pw_passwd = strdup (pwent->pw_passwd);
+	/*@=mustfreeonly@*/
+	if (NULL == pw->pw_passwd) {
+		pw_free(pw);
+		return NULL;
+	}
+	/*@-mustfreeonly@*/
+	pw->pw_gecos = strdup (pwent->pw_gecos);
+	/*@=mustfreeonly@*/
+	if (NULL == pw->pw_gecos) {
+		pw_free(pw);
+		return NULL;
+	}
+	/*@-mustfreeonly@*/
+	pw->pw_dir = strdup (pwent->pw_dir);
+	/*@=mustfreeonly@*/
+	if (NULL == pw->pw_dir) {
+		pw_free(pw);
+		return NULL;
+	}
+	/*@-mustfreeonly@*/
+	pw->pw_shell = strdup (pwent->pw_shell);
+	/*@=mustfreeonly@*/
+	if (NULL == pw->pw_shell) {
+		pw_free(pw);
+		return NULL;
+	}
+
+	return pw;
+}
+
+void pw_free (/*@out@*/ /*@only@*/struct passwd *pwent)
+{
+	free (pwent->pw_name);
+	if (pwent->pw_passwd) {
+		memzero (pwent->pw_passwd, strlen (pwent->pw_passwd));
+		free (pwent->pw_passwd);
+	}
+	free (pwent->pw_gecos);
+	free (pwent->pw_dir);
+	free (pwent->pw_shell);
+	free (pwent);
+}
+