Flatten and clean up.

1 files changed, 129 insertions, 0 deletions

diff --git a/lib/pam_vprompt.c b/lib/pam_vprompt.c
new file mode 100644
index 0000000..e1215c3
--- /dev/null
+++ b/lib/pam_vprompt.c
@@ -0,0 +1,129 @@
+/*-
+ * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
+ * Copyright (c) 2004-2007 Dag-Erling Smørgrav
+ * All rights reserved.
+ *
+ * This software was developed for the FreeBSD Project by ThinkSec AS and
+ * Network Associates Laboratories, 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: pam_vprompt.c 408 2007-12-21 11:36:24Z des $
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <security/pam_appl.h>
+
+#include "openpam_impl.h"
+
+/*
+ * OpenPAM extension
+ *
+ * Call the conversation function
+ */
+
+int
+pam_vprompt(const pam_handle_t *pamh,
+	int style,
+	char **resp,
+	const char *fmt,
+	va_list ap)
+{
+	char msgbuf[PAM_MAX_MSG_SIZE];
+	struct pam_message msg;
+	const struct pam_message *msgp;
+	struct pam_response *rsp;
+	const struct pam_conv *conv;
+	const void *convp;
+	int r;
+
+	ENTER();
+	r = pam_get_item(pamh, PAM_CONV, &convp);
+	if (r != PAM_SUCCESS)
+		RETURNC(r);
+	conv = convp;
+	if (conv == NULL || conv->conv == NULL) {
+		openpam_log(PAM_LOG_ERROR, "no conversation function");
+		RETURNC(PAM_SYSTEM_ERR);
+	}
+	vsnprintf(msgbuf, PAM_MAX_MSG_SIZE, fmt, ap);
+	msg.msg_style = style;
+	msg.msg = msgbuf;
+	msgp = &msg;
+	rsp = NULL;
+	r = (conv->conv)(1, &msgp, &rsp, conv->appdata_ptr);
+	*resp = rsp == NULL ? NULL : rsp->resp;
+	FREE(rsp);
+	RETURNC(r);
+}
+
+/*
+ * Error codes:
+ *
+ *     !PAM_SYMBOL_ERR
+ *	PAM_SYSTEM_ERR
+ *	PAM_BUF_ERR
+ *	PAM_CONV_ERR
+ */
+
+/**
+ * The =pam_vprompt function constructs a string from the =fmt and =ap
+ * arguments using =vsnprintf, and passes it to the given PAM context's
+ * conversation function.
+ *
+ * The =style argument specifies the type of interaction requested, and
+ * must be one of the following:
+ *
+ *	=PAM_PROMPT_ECHO_OFF:
+ *		Display the message and obtain the user's response without
+ *		displaying it.
+ *	=PAM_PROMPT_ECHO_ON:
+ *		Display the message and obtain the user's response.
+ *	=PAM_ERROR_MSG:
+ *		Display the message as an error message, and do not wait
+ *		for a response.
+ *	=PAM_TEXT_INFO:
+ *		Display the message as an informational message, and do
+ *		not wait for a response.
+ *
+ * A pointer to the response, or =NULL if the conversation function did
+ * not return one, is stored in the location pointed to by the =resp
+ * argument.
+ *
+ * The message and response should not exceed =PAM_MAX_MSG_SIZE or
+ * =PAM_MAX_RESP_SIZE, respectively.
+ * If they do, they may be truncated.
+ *
+ * >pam_error
+ * >pam_info
+ * >pam_prompt
+ * >pam_verror
+ * >pam_vinfo
+ */