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/groupmem.c b/lib/groupmem.c
new file mode 100644
index 0000000..1fd1c13
--- /dev/null
+++ b/lib/groupmem.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) 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 "prototypes.h"
+#include "defines.h"
+#include "groupio.h"
+
+/*@null@*/ /*@only@*/struct group *__gr_dup (const struct group *grent)
+{
+	struct group *gr;
+	int i;
+
+	gr = (struct group *) malloc (sizeof *gr);
+	if (NULL == gr) {
+		return NULL;
+	}
+	/* The libc might define other fields. They won't be copied. */
+	memset (gr, 0, sizeof *gr);
+	gr->gr_gid = grent->gr_gid;
+	/*@-mustfreeonly@*/
+	gr->gr_name = strdup (grent->gr_name);
+	/*@=mustfreeonly@*/
+	if (NULL == gr->gr_name) {
+		gr_free(gr);
+		return NULL;
+	}
+	/*@-mustfreeonly@*/
+	gr->gr_passwd = strdup (grent->gr_passwd);
+	/*@=mustfreeonly@*/
+	if (NULL == gr->gr_passwd) {
+		gr_free(gr);
+		return NULL;
+	}
+
+	for (i = 0; grent->gr_mem[i]; i++);
+
+	/*@-mustfreeonly@*/
+	gr->gr_mem = (char **) malloc ((i + 1) * sizeof (char *));
+	/*@=mustfreeonly@*/
+	if (NULL == gr->gr_mem) {
+		gr_free(gr);
+		return NULL;
+	}
+	for (i = 0; grent->gr_mem[i]; i++) {
+		gr->gr_mem[i] = strdup (grent->gr_mem[i]);
+		if (NULL == gr->gr_mem[i]) {
+			gr_free(gr);
+			return NULL;
+		}
+	}
+	gr->gr_mem[i] = NULL;
+
+	return gr;
+}
+
+void gr_free (/*@out@*/ /*@only@*/struct group *grent)
+{
+	free (grent->gr_name);
+	if (NULL != grent->gr_passwd) {
+		memzero (grent->gr_passwd, strlen (grent->gr_passwd));
+		free (grent->gr_passwd);
+	}
+	if (NULL != grent->gr_mem) {
+		size_t i;
+		for (i = 0; NULL != grent->gr_mem[i]; i++) {
+			free (grent->gr_mem[i]);
+		}
+		free (grent->gr_mem);
+	}
+	free (grent);
+}
+