1 files changed, 88 insertions, 0 deletions
diff --git a/contrib/openpam/lib/pam_putenv.c b/contrib/openpam/lib/pam_putenv.c
new file mode 100644
index 0000000..c8701f3
--- /dev/null
+++ b/contrib/openpam/lib/pam_putenv.c
@@ -0,0 +1,88 @@
+/*-
+ * Copyright (c) 2002 Networks Associates Technologies, Inc.
+ * All rights reserved.
+ *
+ * This software was developed for the FreeBSD Project by ThinkSec AS and
+ * NAI Labs, the Security Research Division of Network Associates, Inc.
+ * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
+ * DARPA CHATS research program.
+ *
+ * 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 author may not be used to endorse or promote
+ *    products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $Id$
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <security/pam_appl.h>
+
+#include "openpam_impl.h"
+
+/*
+ * XSSO 4.2.1
+ * XSSO 6 page 56
+ *
+ * Set the value of an environment variable
+ */
+
+int
+pam_putenv(pam_handle_t *pamh,
+	const char *namevalue)
+{
+	char **env, *p;
+	int i;
+
+	if (pamh == NULL)
+		return (PAM_SYSTEM_ERR);
+
+	/* sanity checks */
+	if (namevalue == NULL || (p = strchr(namevalue, '=')) == NULL)
+		return (PAM_SYSTEM_ERR);
+
+	/* see if the variable is already in the environment */
+	if ((i = openpam_findenv(pamh, namevalue, p - namevalue)) != -1) {
+		if ((p = strdup(namevalue)) == NULL)
+			return (PAM_BUF_ERR);
+		free(pamh->env[i]);
+		pamh->env[i] = p;
+		return (PAM_SUCCESS);
+	}
+
+	/* grow the environment list if necessary */
+	if (pamh->env_count == pamh->env_size) {
+		env = realloc(pamh->env, pamh->env_size * 2 + 1);
+		if (env == NULL)
+			return (PAM_BUF_ERR);
+		pamh->env = env;
+		pamh->env_size = pamh->env_size * 2 + 1;
+	}
+
+	/* add the variable at the end */
+	if ((pamh->env[pamh->env_count] = strdup(namevalue)) == NULL)
+		return (PAM_BUF_ERR);
+	++pamh->env_count;
+	return (PAM_SUCCESS);
+}