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Annotation of mandoc/compat_err.c, Revision 1.4

1.1       schwarze    1: #include "config.h"
                      2:
                      3: #if HAVE_ERR
                      4:
                      5: int dummy;
                      6:
                      7: #else
                      8:
1.4     ! schwarze    9: /* $Id: compat_err.c,v 1.3 2015/11/07 14:22:29 schwarze Exp $ */
1.1       schwarze   10: /*
                     11:  * Copyright (c) 1993
                     12:  *      The Regents of the University of California.  All rights reserved.
                     13:  *
                     14:  * Redistribution and use in source and binary forms, with or without
                     15:  * modification, are permitted provided that the following conditions
                     16:  * are met:
                     17:  * 1. Redistributions of source code must retain the above copyright
                     18:  *    notice, this list of conditions and the following disclaimer.
                     19:  * 2. Redistributions in binary form must reproduce the above copyright
                     20:  *    notice, this list of conditions and the following disclaimer in the
                     21:  *    documentation and/or other materials provided with the distribution.
                     22:  * 3. Neither the name of the University nor the names of its contributors
                     23:  *    may be used to endorse or promote products derived from this software
                     24:  *    without specific prior written permission.
                     25:  *
                     26:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     27:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     28:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     29:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     30:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     31:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     32:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     33:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     34:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     35:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     36:  * SUCH DAMAGE.
                     37:  */
                     38:
                     39: #include <errno.h>
                     40: #include <stdarg.h>
                     41: #include <stdio.h>
                     42: #include <stdlib.h>
                     43: #include <string.h>
                     44:
                     45: static void vwarni(const char *, va_list);
                     46: static void vwarnxi(const char *, va_list);
                     47:
                     48: static void
                     49: vwarnxi(const char *fmt, va_list ap)
                     50: {
1.2       schwarze   51:        fprintf(stderr, "%s: ", getprogname());
1.1       schwarze   52:        if (fmt != NULL)
                     53:                vfprintf(stderr, fmt, ap);
                     54: }
                     55:
                     56: static void
                     57: vwarni(const char *fmt, va_list ap)
                     58: {
                     59:        int sverrno;
                     60:
                     61:        sverrno = errno;
                     62:        vwarnxi(fmt, ap);
                     63:        if (fmt != NULL)
                     64:                fputs(": ", stderr);
                     65:        fprintf(stderr, "%s\n", strerror(sverrno));
                     66: }
                     67:
                     68: void
                     69: err(int eval, const char *fmt, ...)
                     70: {
                     71:        va_list ap;
                     72:
                     73:        va_start(ap, fmt);
                     74:        vwarni(fmt, ap);
                     75:        va_end(ap);
1.4     ! schwarze   76:        exit(eval);
        !            77: }
        !            78:
        !            79: void
        !            80: errx(int eval, const char *fmt, ...)
        !            81: {
        !            82:        va_list ap;
        !            83:
        !            84:        va_start(ap, fmt);
        !            85:        vwarnxi(fmt, ap);
        !            86:        va_end(ap);
        !            87:        fputc('\n', stderr);
1.1       schwarze   88:        exit(eval);
                     89: }
                     90:
                     91: void
                     92: warn(const char *fmt, ...)
                     93: {
                     94:        va_list ap;
                     95:
                     96:        va_start(ap, fmt);
                     97:        vwarni(fmt, ap);
                     98:        va_end(ap);
                     99: }
                    100:
                    101: void
                    102: warnx(const char *fmt, ...)
                    103: {
                    104:        va_list ap;
                    105:
                    106:        va_start(ap, fmt);
                    107:        vwarnxi(fmt, ap);
                    108:        va_end(ap);
                    109:        fputc('\n', stderr);
                    110: }
                    111:
                    112: #endif

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