339 lines
8.7 KiB
C
339 lines
8.7 KiB
C
/*
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* Copyright (c) 1997 - 2001 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 "krb5_locl.h"
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#include <err.h>
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static krb5_error_code _warnerr(krb5_context context, int do_errtext,
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krb5_error_code code, int level, const char *fmt, va_list ap)
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__attribute__((__format__(__printf__, 5, 0)));
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static krb5_error_code
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_warnerr(krb5_context context, int do_errtext,
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krb5_error_code code, int level, const char *fmt, va_list ap)
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{
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char xfmt[7] = "";
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const char *args[2], **arg;
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char *msg = NULL;
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const char *err_str = NULL;
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args[0] = args[1] = NULL;
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arg = args;
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if(fmt){
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strlcat(xfmt, "%s", sizeof(xfmt));
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if(do_errtext)
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strlcat(xfmt, ": ", sizeof(xfmt));
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vasprintf(&msg, fmt, ap);
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if(msg == NULL)
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return ENOMEM;
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*arg++ = msg;
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}
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if(context && do_errtext){
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strlcat(xfmt, "%s", sizeof(xfmt));
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err_str = krb5_get_error_message(context, code);
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if (err_str != NULL) {
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*arg = err_str;
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} else {
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*arg= "<unknown error>";
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}
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}
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if(context && context->warn_dest)
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krb5_log(context, context->warn_dest, level, xfmt, args[0], args[1]);
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else
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warnx(xfmt, args[0], args[1]);
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free(msg);
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krb5_free_error_message(context, err_str);
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return 0;
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}
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#define FUNC(ETEXT, CODE, LEVEL) \
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krb5_error_code ret; \
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va_list ap; \
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va_start(ap, fmt); \
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ret = _warnerr(context, ETEXT, CODE, LEVEL, fmt, ap); \
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va_end(ap);
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#undef __attribute__
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#define __attribute__(X)
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/**
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* Log a warning to the log, default stderr, include the error from
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* the last failure.
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*
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* @param context A Kerberos 5 context.
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* @param code error code of the last error
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* @param fmt message to print
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* @param ap arguments
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_vwarn(krb5_context context, krb5_error_code code,
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const char *fmt, va_list ap)
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__attribute__ ((format (printf, 3, 0)))
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{
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return _warnerr(context, 1, code, 1, fmt, ap);
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}
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/**
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* Log a warning to the log, default stderr, include the error from
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* the last failure.
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*
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* @param context A Kerberos 5 context.
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* @param code error code of the last error
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_warn(krb5_context context, krb5_error_code code, const char *fmt, ...)
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__attribute__ ((format (printf, 3, 4)))
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{
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FUNC(1, code, 1);
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return ret;
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}
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/**
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* Log a warning to the log, default stderr.
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*
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* @param context A Kerberos 5 context.
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* @param fmt message to print
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* @param ap arguments
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_vwarnx(krb5_context context, const char *fmt, va_list ap)
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__attribute__ ((format (printf, 2, 0)))
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{
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return _warnerr(context, 0, 0, 1, fmt, ap);
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}
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/**
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* Log a warning to the log, default stderr.
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*
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* @param context A Kerberos 5 context.
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_warnx(krb5_context context, const char *fmt, ...)
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__attribute__ ((format (printf, 2, 3)))
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{
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FUNC(0, 0, 1);
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return ret;
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}
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/**
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* Log a warning to the log, default stderr, include bthe error from
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* the last failure and then exit.
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*
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* @param context A Kerberos 5 context
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* @param eval the exit code to exit with
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* @param code error code of the last error
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* @param fmt message to print
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* @param ap arguments
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_verr(krb5_context context, int eval, krb5_error_code code,
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const char *fmt, va_list ap)
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__attribute__ ((noreturn, format (printf, 4, 0)))
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{
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_warnerr(context, 1, code, 0, fmt, ap);
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exit(eval);
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}
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/**
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* Log a warning to the log, default stderr, include bthe error from
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* the last failure and then exit.
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*
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* @param context A Kerberos 5 context
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* @param eval the exit code to exit with
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* @param code error code of the last error
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_err(krb5_context context, int eval, krb5_error_code code,
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const char *fmt, ...)
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__attribute__ ((noreturn, format (printf, 4, 5)))
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{
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FUNC(1, code, 0);
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exit(eval);
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}
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/**
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* Log a warning to the log, default stderr, and then exit.
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*
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* @param context A Kerberos 5 context
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* @param eval the exit code to exit with
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* @param fmt message to print
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* @param ap arguments
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_verrx(krb5_context context, int eval, const char *fmt, va_list ap)
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__attribute__ ((noreturn, format (printf, 3, 0)))
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{
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_warnerr(context, 0, 0, 0, fmt, ap);
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exit(eval);
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}
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/**
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* Log a warning to the log, default stderr, and then exit.
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*
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* @param context A Kerberos 5 context
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* @param eval the exit code to exit with
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_errx(krb5_context context, int eval, const char *fmt, ...)
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__attribute__ ((noreturn, format (printf, 3, 4)))
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{
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FUNC(0, 0, 0);
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exit(eval);
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}
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/**
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* Log a warning to the log, default stderr, include bthe error from
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* the last failure and then abort.
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*
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* @param context A Kerberos 5 context
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* @param code error code of the last error
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* @param fmt message to print
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* @param ap arguments
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_vabort(krb5_context context, krb5_error_code code,
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const char *fmt, va_list ap)
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__attribute__ ((noreturn, format (printf, 3, 0)))
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{
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_warnerr(context, 1, code, 0, fmt, ap);
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abort();
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}
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/**
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* Log a warning to the log, default stderr, include the error from
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* the last failure and then abort.
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*
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* @param context A Kerberos 5 context
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* @param code error code of the last error
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_abort(krb5_context context, krb5_error_code code, const char *fmt, ...)
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__attribute__ ((noreturn, format (printf, 3, 4)))
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{
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FUNC(1, code, 0);
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abort();
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}
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_vabortx(krb5_context context, const char *fmt, va_list ap)
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__attribute__ ((noreturn, format (printf, 2, 0)))
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{
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_warnerr(context, 0, 0, 0, fmt, ap);
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abort();
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}
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/**
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* Log a warning to the log, default stderr, and then abort.
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*
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* @param context A Kerberos 5 context
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* @param code error code of the last error
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_abortx(krb5_context context, const char *fmt, ...)
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__attribute__ ((noreturn, format (printf, 2, 3)))
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{
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FUNC(0, 0, 0);
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abort();
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}
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/**
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* Set the default logging facility.
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*
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* @param context A Kerberos 5 context
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* @param fac Facility to use for logging.
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_set_warn_dest(krb5_context context, krb5_log_facility *fac)
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{
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context->warn_dest = fac;
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return 0;
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}
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/**
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* Get the default logging facility.
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*
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* @param context A Kerberos 5 context
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_log_facility * KRB5_LIB_CALL
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krb5_get_warn_dest(krb5_context context)
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{
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return context->warn_dest;
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}
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