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Annotation of mandoc/compat_err.c, Revision 1.5

1.5     ! schwarze    1: /* $Id: compat_err.c,v 1.4 2015/11/26 07:42:11 schwarze Exp $ */
1.1       schwarze    2: /*
                      3:  * Copyright (c) 1993
                      4:  *      The Regents of the University of California.  All rights reserved.
                      5:  *
                      6:  * Redistribution and use in source and binary forms, with or without
                      7:  * modification, are permitted provided that the following conditions
                      8:  * are met:
                      9:  * 1. Redistributions of source code must retain the above copyright
                     10:  *    notice, this list of conditions and the following disclaimer.
                     11:  * 2. Redistributions in binary form must reproduce the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer in the
                     13:  *    documentation and/or other materials provided with the distribution.
                     14:  * 3. Neither the name of the University nor the names of its contributors
                     15:  *    may be used to endorse or promote products derived from this software
                     16:  *    without specific prior written permission.
                     17:  *
                     18:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     19:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     20:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     21:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     22:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     23:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     24:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     25:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     26:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     27:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     28:  * SUCH DAMAGE.
                     29:  */
1.5     ! schwarze   30: #include "config.h"
1.1       schwarze   31:
                     32: #include <errno.h>
                     33: #include <stdarg.h>
                     34: #include <stdio.h>
                     35: #include <stdlib.h>
                     36: #include <string.h>
                     37:
                     38: static void vwarni(const char *, va_list);
                     39: static void vwarnxi(const char *, va_list);
                     40:
                     41: static void
                     42: vwarnxi(const char *fmt, va_list ap)
                     43: {
1.2       schwarze   44:        fprintf(stderr, "%s: ", getprogname());
1.1       schwarze   45:        if (fmt != NULL)
                     46:                vfprintf(stderr, fmt, ap);
                     47: }
                     48:
                     49: static void
                     50: vwarni(const char *fmt, va_list ap)
                     51: {
                     52:        int sverrno;
                     53:
                     54:        sverrno = errno;
                     55:        vwarnxi(fmt, ap);
                     56:        if (fmt != NULL)
                     57:                fputs(": ", stderr);
                     58:        fprintf(stderr, "%s\n", strerror(sverrno));
                     59: }
                     60:
                     61: void
                     62: err(int eval, const char *fmt, ...)
                     63: {
                     64:        va_list ap;
                     65:
                     66:        va_start(ap, fmt);
                     67:        vwarni(fmt, ap);
                     68:        va_end(ap);
1.4       schwarze   69:        exit(eval);
                     70: }
                     71:
                     72: void
                     73: errx(int eval, const char *fmt, ...)
                     74: {
                     75:        va_list ap;
                     76:
                     77:        va_start(ap, fmt);
                     78:        vwarnxi(fmt, ap);
                     79:        va_end(ap);
                     80:        fputc('\n', stderr);
1.1       schwarze   81:        exit(eval);
                     82: }
                     83:
                     84: void
                     85: warn(const char *fmt, ...)
                     86: {
                     87:        va_list ap;
                     88:
                     89:        va_start(ap, fmt);
                     90:        vwarni(fmt, ap);
                     91:        va_end(ap);
                     92: }
                     93:
                     94: void
                     95: warnx(const char *fmt, ...)
                     96: {
                     97:        va_list ap;
                     98:
                     99:        va_start(ap, fmt);
                    100:        vwarnxi(fmt, ap);
                    101:        va_end(ap);
                    102:        fputc('\n', stderr);
                    103: }

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