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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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