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| 1 /*- |
| 2 * Copyright 2009 Colin Percival |
| 3 * All rights reserved. |
| 4 * |
| 5 * Redistribution and use in source and binary forms, with or without |
| 6 * modification, are permitted provided that the following conditions |
| 7 * are met: |
| 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright |
| 11 * notice, this list of conditions and the following disclaimer in the |
| 12 * documentation and/or other materials provided with the distribution. |
| 13 * |
| 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 24 * SUCH DAMAGE. |
| 25 * |
| 26 * This file was originally written by Colin Percival as part of the Tarsnap |
| 27 * online backup system. |
| 28 */ |
| 29 #include "scrypt_platform.h" |
| 30 |
| 31 #ifdef HAVE_ERR_H |
| 32 /* |
| 33 * Everything is provided through err.h and the associated library, so we |
| 34 * don't need to do anything here. |
| 35 */ |
| 36 #else |
| 37 #include <errno.h> |
| 38 #include <stdarg.h> |
| 39 #include <stdio.h> |
| 40 #include <string.h> |
| 41 |
| 42 #include "warn.h" |
| 43 |
| 44 const char * warn_progname = "(null)"; |
| 45 |
| 46 void |
| 47 warn(const char * fmt, ...) |
| 48 { |
| 49 va_list ap; |
| 50 |
| 51 va_start(ap, fmt); |
| 52 fprintf(stderr, "%s", warn_progname); |
| 53 if (fmt != NULL) { |
| 54 fprintf(stderr, ": "); |
| 55 vfprintf(stderr, fmt, ap); |
| 56 } |
| 57 fprintf(stderr, ": %s\n", strerror(errno)); |
| 58 va_end(ap); |
| 59 } |
| 60 |
| 61 void |
| 62 warnx(const char * fmt, ...) |
| 63 { |
| 64 va_list ap; |
| 65 |
| 66 va_start(ap, fmt); |
| 67 fprintf(stderr, "%s", warn_progname); |
| 68 if (fmt != NULL) { |
| 69 fprintf(stderr, ": "); |
| 70 vfprintf(stderr, fmt, ap); |
| 71 } |
| 72 fprintf(stderr, "\n"); |
| 73 va_end(ap); |
| 74 } |
| 75 #endif |
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