/src/varnish-cache/lib/libvarnish/vas.c
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1 | | /*- |
2 | | * Copyright (c) 2006 Verdens Gang AS |
3 | | * Copyright (c) 2006-2016 Varnish Software AS |
4 | | * All rights reserved. |
5 | | * |
6 | | * Author: Poul-Henning Kamp <phk@phk.freebsd.dk> |
7 | | * |
8 | | * SPDX-License-Identifier: BSD-2-Clause |
9 | | * |
10 | | * Redistribution and use in source and binary forms, with or without |
11 | | * modification, are permitted provided that the following conditions |
12 | | * are met: |
13 | | * 1. Redistributions of source code must retain the above copyright |
14 | | * notice, this list of conditions and the following disclaimer. |
15 | | * 2. Redistributions in binary form must reproduce the above copyright |
16 | | * notice, this list of conditions and the following disclaimer in the |
17 | | * documentation and/or other materials provided with the distribution. |
18 | | * |
19 | | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
20 | | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
21 | | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
22 | | * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE |
23 | | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
24 | | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
25 | | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
26 | | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
27 | | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
28 | | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
29 | | * SUCH DAMAGE. |
30 | | * |
31 | | * This is the default backend function for libvarnish' assert facilities. |
32 | | */ |
33 | | |
34 | | #include "config.h" |
35 | | |
36 | | #include <stdio.h> |
37 | | #include <stdlib.h> |
38 | | #include <string.h> |
39 | | |
40 | | #include "vdef.h" |
41 | | |
42 | | #include "vas.h" |
43 | | |
44 | | const char * |
45 | | VAS_errtxt(int e) |
46 | 0 | { |
47 | 0 | const char *p; |
48 | 0 | int oerrno = errno; |
49 | |
|
50 | 0 | p = strerror(e); |
51 | 0 | if (p != NULL) |
52 | 0 | return (p); |
53 | | |
54 | 0 | errno = oerrno; |
55 | 0 | return ("strerror(3) returned NULL"); |
56 | 0 | } |
57 | | |
58 | | vas_f *VAS_Fail_Func v_noreturn_; |
59 | | |
60 | | void v_noreturn_ |
61 | | VAS_Fail(const char *func, const char *file, int line, |
62 | | const char *cond, enum vas_e kind) |
63 | 0 | { |
64 | 0 | int err = errno; |
65 | |
|
66 | 0 | if (VAS_Fail_Func != NULL) { |
67 | 0 | VAS_Fail_Func(func, file, line, cond, kind); |
68 | 0 | } else { |
69 | 0 | if (kind == VAS_MISSING) { |
70 | 0 | fprintf(stderr, |
71 | 0 | "Missing error handling code in %s(), %s line %d:\n" |
72 | 0 | " Condition(%s) not true.\n", |
73 | 0 | func, file, line, cond); |
74 | 0 | } else if (kind == VAS_INCOMPLETE) { |
75 | 0 | fprintf(stderr, |
76 | 0 | "Incomplete code in %s(), %s line %d:\n", |
77 | 0 | func, file, line); |
78 | 0 | } else if (kind == VAS_WRONG) { |
79 | 0 | fprintf(stderr, |
80 | 0 | "Wrong turn in %s(), %s line %d: %s\n", |
81 | 0 | func, file, line, cond); |
82 | 0 | } else { |
83 | 0 | fprintf(stderr, |
84 | 0 | "Assert error in %s(), %s line %d:\n" |
85 | 0 | " Condition(%s) not true.\n", |
86 | 0 | func, file, line, cond); |
87 | 0 | } |
88 | 0 | if (err) |
89 | 0 | fprintf(stderr, |
90 | 0 | " errno = %d (%s)\n", err, strerror(err)); |
91 | 0 | } |
92 | 0 | abort(); |
93 | 0 | } |