Initial import of the CDE 2.1.30 sources from the Open Group.

cde/lib/pam/pam_modules/sample/sample_utils.c

@@ -0,0 +1,174 @@
+/* $XConsortium: sample_utils.c /main/2 1996/05/09 04:31:21 drk $ */
+
+/*
+ * Copyright (c) 1992-1995, by Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+
+#ident  "@(#)sample_utils.c 1.8     96/01/12 SMI"
+
+#include <security/pam_appl.h>
+#include <string.h>
+#include <stdlib.h>
+#include <malloc.h>
+
+#include "sample_utils.h"
+
+/* ******************************************************************** */
+/*									*/
+/* 		Utilities Functions					*/
+/*									*/
+/* ******************************************************************** */
+
+/*
+ * free_msg():
+ *	free storage for messages used in the call back "pam_conv" functions
+ */
+
+void
+free_msg(num_msg, msg)
+	int num_msg;
+	struct pam_message *msg;
+{
+	int 			i;
+	struct pam_message 	*m;
+
+	if (msg) {
+		m = msg;
+		for (i = 0; i < num_msg; i++, m++) {
+			if (m->msg)
+				free(m->msg);
+		}
+		free(msg);
+	}
+}
+
+/*
+ * free_resp():
+ *	free storage for responses used in the call back "pam_conv" functions
+ */
+
+void
+free_resp(num_msg, resp)
+	int num_msg;
+	struct pam_response *resp;
+{
+	int			i;
+	struct pam_response	*r;
+
+	if (resp) {
+		r = resp;
+		for (i = 0; i < num_msg; i++, r++) {
+			if (r->resp)
+				free(r->resp);
+		}
+		free(resp);
+	}
+}
+
+/*
+ * display_errmsg():
+ *	display error message by calling the call back functions
+ *	provided by the application through "pam_conv" structure
+ */
+
+int
+display_errmsg(conv_funp, num_msg, messages, conv_apdp)
+	int (*conv_funp)();
+	int num_msg;
+	char messages[PAM_MAX_NUM_MSG][PAM_MAX_MSG_SIZE];
+	void *conv_apdp;
+{
+	struct pam_message	*msg;
+	struct pam_message	*m;
+	struct pam_response	*resp;
+	int			i;
+	int			k;
+	int			retcode;
+
+	msg = (struct pam_message *)calloc(num_msg,
+					sizeof (struct pam_message));
+	if (msg == NULL) {
+		return (PAM_CONV_ERR);
+	}
+	m = msg;
+
+	i = 0;
+	k = num_msg;
+	resp = NULL;
+	while (k--) {
+		/*
+		 * fill out the pam_message structure to display error message
+		 */
+		m->msg_style = PAM_ERROR_MSG;
+		m->msg = (char *)malloc(PAM_MAX_MSG_SIZE);
+		if (m->msg != NULL)
+			(void) strcpy(m->msg, (const char *)messages[i]);
+		else
+			continue;
+		m++;
+		i++;
+	}
+
+	/*
+	 * Call conv function to display the message,
+	 * ignoring return value for now
+	 */
+	retcode = conv_funp(num_msg, &msg, &resp, conv_apdp);
+	free_msg(num_msg, msg);
+	free_resp(num_msg, resp);
+	return (retcode);
+}
+
+/*
+ * get_authtok():
+ *	get authentication token by calling the call back functions
+ *	provided by the application through "pam_conv" structure
+ */
+
+int
+get_authtok(conv_funp, num_msg, messages, conv_apdp, ret_respp)
+	int (*conv_funp)();
+	int num_msg;
+	char messages[PAM_MAX_NUM_MSG][PAM_MAX_MSG_SIZE];
+	void *conv_apdp;
+	struct pam_response	**ret_respp;
+{
+	struct pam_message	*msg;
+	struct pam_message	*m;
+	int			i;
+	int			k;
+	int			retcode;
+
+	i = 0;
+	k = num_msg;
+
+	msg = (struct pam_message *)calloc(num_msg,
+						sizeof (struct pam_message));
+	if (msg == NULL) {
+		return (PAM_CONV_ERR);
+	}
+	m = msg;
+
+	while (k--) {
+		/*
+		 * fill out the message structure to display error message
+		 */
+		m->msg_style = PAM_PROMPT_ECHO_OFF;
+		m->msg = (char *)malloc(PAM_MAX_MSG_SIZE);
+		if (m->msg != NULL)
+			(void) strcpy(m->msg, (char *)messages[i]);
+		else
+			continue;
+		m++;
+		i++;
+	}
+
+	/*
+	 * Call conv function to display the prompt,
+	 * ignoring return value for now
+	 */
+	retcode = conv_funp(num_msg, &msg, ret_respp, conv_apdp);
+	free_msg(num_msg, msg);
+	return (retcode);
+}