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/*
* Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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 "krb5_locl.h"
#include <err.h>
RCSID("$Id: warn.c,v 1.15 2004/05/25 21:46:26 lha Exp $");
static krb5_error_code _warnerr(krb5_context context, int do_errtext,
krb5_error_code code, int level, const char *fmt, va_list ap)
__attribute__((__format__(__printf__, 5, 0)));
static krb5_error_code
_warnerr(krb5_context context, int do_errtext,
krb5_error_code code, int level, const char *fmt, va_list ap)
{
char xfmt[7] = "";
const char *args[2], **arg;
char *msg = NULL;
char *err_str = NULL;
args[0] = args[1] = NULL;
arg = args;
if(fmt){
strlcat(xfmt, "%s", sizeof(xfmt));
if(do_errtext)
strlcat(xfmt, ": ", sizeof(xfmt));
vasprintf(&msg, fmt, ap);
if(msg == NULL)
return ENOMEM;
*arg++ = msg;
}
if(context && do_errtext){
const char *err_msg;
strlcat(xfmt, "%s", sizeof(xfmt));
err_str = krb5_get_error_string(context);
if (err_str != NULL) {
*arg++ = err_str;
} else {
err_msg = krb5_get_err_text(context, code);
if (err_msg)
*arg++ = err_msg;
else
*arg++ = "<unknown error>";
}
}
if(context && context->warn_dest)
krb5_log(context, context->warn_dest, level, xfmt, args[0], args[1]);
else
warnx(xfmt, args[0], args[1]);
free(msg);
free(err_str);
return 0;
}
#define FUNC(ETEXT, CODE, LEVEL) \
krb5_error_code ret; \
va_list ap; \
va_start(ap, fmt); \
ret = _warnerr(context, ETEXT, CODE, LEVEL, fmt, ap); \
va_end(ap);
#undef __attribute__
#define __attribute__(X)
krb5_error_code KRB5_LIB_FUNCTION
krb5_vwarn(krb5_context context, krb5_error_code code,
const char *fmt, va_list ap)
__attribute__ ((format (printf, 3, 0)))
{
return _warnerr(context, 1, code, 1, fmt, ap);
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_warn(krb5_context context, krb5_error_code code, const char *fmt, ...)
__attribute__ ((format (printf, 3, 4)))
{
FUNC(1, code, 1);
return ret;
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_vwarnx(krb5_context context, const char *fmt, va_list ap)
__attribute__ ((format (printf, 2, 0)))
{
return _warnerr(context, 0, 0, 1, fmt, ap);
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_warnx(krb5_context context, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)))
{
FUNC(0, 0, 1);
return ret;
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_verr(krb5_context context, int eval, krb5_error_code code,
const char *fmt, va_list ap)
__attribute__ ((noreturn, format (printf, 4, 0)))
{
_warnerr(context, 1, code, 0, fmt, ap);
exit(eval);
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_err(krb5_context context, int eval, krb5_error_code code,
const char *fmt, ...)
__attribute__ ((noreturn, format (printf, 4, 5)))
{
FUNC(1, code, 0);
exit(eval);
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_verrx(krb5_context context, int eval, const char *fmt, va_list ap)
__attribute__ ((noreturn, format (printf, 3, 0)))
{
_warnerr(context, 0, 0, 0, fmt, ap);
exit(eval);
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_errx(krb5_context context, int eval, const char *fmt, ...)
__attribute__ ((noreturn, format (printf, 3, 4)))
{
FUNC(0, 0, 0);
exit(eval);
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_vabort(krb5_context context, krb5_error_code code,
const char *fmt, va_list ap)
__attribute__ ((noreturn, format (printf, 3, 0)))
{
_warnerr(context, 1, code, 0, fmt, ap);
abort();
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_abort(krb5_context context, krb5_error_code code, const char *fmt, ...)
__attribute__ ((noreturn, format (printf, 3, 4)))
{
FUNC(1, code, 0);
abort();
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_vabortx(krb5_context context, const char *fmt, va_list ap)
__attribute__ ((noreturn, format (printf, 2, 0)))
{
_warnerr(context, 0, 0, 0, fmt, ap);
abort();
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_abortx(krb5_context context, const char *fmt, ...)
__attribute__ ((noreturn, format (printf, 2, 3)))
{
FUNC(0, 0, 0);
abort();
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_set_warn_dest(krb5_context context, krb5_log_facility *fac)
{
context->warn_dest = fac;
return 0;
}
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