git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@19061 ec53bebd-3082-4978-b11e-865c3cabbd6b
		
			
				
	
	
		
			142 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			142 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Copyright (c) 2006 Kungliga Tekniska Högskolan
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 * (Royal Institute of Technology, Stockholm, Sweden). 
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 * All rights reserved. 
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 *
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 * Redistribution and use in source and binary forms, with or without 
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 * modification, are permitted provided that the following conditions 
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 * are met: 
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 *
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 * 1. Redistributions of source code must retain the above copyright 
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 *    notice, this list of conditions and the following disclaimer. 
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 *
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 * 2. Redistributions in binary form must reproduce the above copyright 
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 *    notice, this list of conditions and the following disclaimer in the 
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 *    documentation and/or other materials provided with the distribution. 
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 *
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 * 3. Neither the name of the Institute nor the names of its contributors 
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 *    may be used to endorse or promote products derived from this software 
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 *    without specific prior written permission. 
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
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 * SUCH DAMAGE. 
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 */
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#include "hx_locl.h"
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RCSID("$Id$");
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struct hx509_error_data {
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    hx509_error next;
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    int code;
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    char *msg;
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};
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static void
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free_error_string(hx509_error msg)
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{
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    while(msg) {
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	hx509_error m2 = msg->next;
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	free(msg->msg);
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	free(msg);
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	msg = m2;
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    }
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}
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void
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hx509_clear_error_string(hx509_context context)
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{
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    free_error_string(context->error);
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    context->error = NULL;
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}
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void
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hx509_set_error_stringv(hx509_context context, int flags, int code, 
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			const char *fmt, va_list ap)
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{
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    hx509_error msg;
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    msg = calloc(1, sizeof(*msg));
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    if (msg == NULL) {
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	hx509_clear_error_string(context);
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	return;
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    }
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    if (vasprintf(&msg->msg, fmt, ap) == -1) {
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	hx509_clear_error_string(context);
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	free(msg);
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	return;
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    }
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    msg->code = code;
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    if (flags & HX509_ERROR_APPEND) {
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	msg->next = context->error;
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	context->error = msg;
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    } else  {
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	free_error_string(context->error);
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	context->error = msg;
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    }
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}
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void
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hx509_set_error_string(hx509_context context, int flags, int code, const char *fmt, ...)
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{
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    va_list ap;
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    va_start(ap, fmt);
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    hx509_set_error_stringv(context, flags, code, fmt, ap);
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    va_end(ap);
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}
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char *
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hx509_get_error_string(hx509_context context, int error_code)
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{
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    struct rk_strpool *p = NULL;
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    hx509_error msg;
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    if (context->error == NULL) {
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	const char *cstr;
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	char *str;
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	cstr = com_right(context->et_list, error_code);
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	if (cstr)
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	    return strdup(cstr);
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	cstr = strerror(error_code);
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	if (cstr)
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	    return strdup(cstr);
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	if (asprintf(&str, "<unknown error: %d>", error_code) == -1)
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	    return NULL;
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	return str;
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    }
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    for (msg = context->error; msg; msg = msg->next)
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	p = rk_strpoolprintf(p, "%s%s", msg->msg, 
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			     msg->next != NULL ? "; " : "");
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    return rk_strpoolcollect(p);
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}
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void
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hx509_err(hx509_context context, int exit_code, int error_code, char *fmt, ...)
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{
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    va_list ap;
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    char *msg, *str;
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    va_start(ap, fmt);
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    vasprintf(&str, fmt, ap);
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    va_end(ap);
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    msg = hx509_get_error_string(context, error_code);
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    if (msg == NULL)
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	msg = "no error";
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    errx(exit_code, "%s: %s", str, msg);
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}
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