| /*- |
| * Copyright (c) 1993 |
| * The Regents of the University of California. 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 University 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 REGENTS 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 REGENTS 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 <sys/cdefs.h> |
| #include <err.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include <errno.h> |
| |
| extern const char* __progname; |
| |
| __noreturn void |
| err(int eval, const char *fmt, ...) |
| { |
| va_list ap; |
| |
| va_start(ap, fmt); |
| verr(eval, fmt, ap); |
| va_end(ap); |
| } |
| |
| __noreturn void |
| errx(int eval, const char *fmt, ...) |
| { |
| va_list ap; |
| |
| va_start(ap, fmt); |
| verrx(eval, fmt, ap); |
| va_end(ap); |
| } |
| |
| __noreturn void |
| verr(int eval, const char *fmt, va_list ap) |
| { |
| int sverrno; |
| |
| sverrno = errno; |
| (void)fprintf(stderr, "%s: ", __progname); |
| if (fmt != NULL) { |
| (void)vfprintf(stderr, fmt, ap); |
| (void)fprintf(stderr, ": "); |
| } |
| (void)fprintf(stderr, "%s\n", strerror(sverrno)); |
| exit(eval); |
| } |
| |
| |
| __noreturn void |
| verrx(int eval, const char *fmt, va_list ap) |
| { |
| (void)fprintf(stderr, "%s: ", __progname); |
| if (fmt != NULL) |
| (void)vfprintf(stderr, fmt, ap); |
| (void)fprintf(stderr, "\n"); |
| exit(eval); |
| } |
| |
| void |
| warn(const char *fmt, ...) |
| { |
| va_list ap; |
| |
| va_start(ap, fmt); |
| vwarn(fmt, ap); |
| va_end(ap); |
| } |
| |
| void |
| warnx(const char *fmt, ...) |
| { |
| va_list ap; |
| |
| va_start(ap, fmt); |
| vwarnx(fmt, ap); |
| va_end(ap); |
| } |
| |
| void |
| vwarn(const char *fmt, va_list ap) |
| { |
| int sverrno; |
| |
| sverrno = errno; |
| (void)fprintf(stderr, "%s: ", __progname); |
| if (fmt != NULL) { |
| (void)vfprintf(stderr, fmt, ap); |
| (void)fprintf(stderr, ": "); |
| } |
| (void)fprintf(stderr, "%s\n", strerror(sverrno)); |
| } |
| |
| void |
| vwarnx(const char *fmt, va_list ap) |
| { |
| (void)fprintf(stderr, "%s: ", __progname); |
| if (fmt != NULL) |
| (void)vfprintf(stderr, fmt, ap); |
| (void)fprintf(stderr, "\n"); |
| } |