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Commit | Line | Data |
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07800601 IM |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
6 | #include "util.h" | |
7 | ||
8 | static void report(const char *prefix, const char *err, va_list params) | |
9 | { | |
10 | char msg[1024]; | |
11 | vsnprintf(msg, sizeof(msg), err, params); | |
12 | fprintf(stderr, "%s%s\n", prefix, msg); | |
13 | } | |
14 | ||
15 | static NORETURN void usage_builtin(const char *err) | |
16 | { | |
502fc5c7 | 17 | fprintf(stderr, "\n usage: %s\n", err); |
07800601 IM |
18 | exit(129); |
19 | } | |
20 | ||
21 | static NORETURN void die_builtin(const char *err, va_list params) | |
22 | { | |
23 | report("fatal: ", err, params); | |
24 | exit(128); | |
25 | } | |
26 | ||
27 | static void error_builtin(const char *err, va_list params) | |
28 | { | |
29 | report("error: ", err, params); | |
30 | } | |
31 | ||
32 | static void warn_builtin(const char *warn, va_list params) | |
33 | { | |
34 | report("warning: ", warn, params); | |
35 | } | |
36 | ||
37 | /* If we are in a dlopen()ed .so write to a global variable would segfault | |
38 | * (ugh), so keep things static. */ | |
39 | static void (*usage_routine)(const char *err) NORETURN = usage_builtin; | |
40 | static void (*die_routine)(const char *err, va_list params) NORETURN = die_builtin; | |
41 | static void (*error_routine)(const char *err, va_list params) = error_builtin; | |
42 | static void (*warn_routine)(const char *err, va_list params) = warn_builtin; | |
43 | ||
44 | void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN) | |
45 | { | |
46 | die_routine = routine; | |
47 | } | |
48 | ||
49 | void usage(const char *err) | |
50 | { | |
51 | usage_routine(err); | |
52 | } | |
53 | ||
54 | void die(const char *err, ...) | |
55 | { | |
56 | va_list params; | |
57 | ||
58 | va_start(params, err); | |
59 | die_routine(err, params); | |
60 | va_end(params); | |
61 | } | |
62 | ||
63 | int error(const char *err, ...) | |
64 | { | |
65 | va_list params; | |
66 | ||
67 | va_start(params, err); | |
68 | error_routine(err, params); | |
69 | va_end(params); | |
70 | return -1; | |
71 | } | |
72 | ||
73 | void warning(const char *warn, ...) | |
74 | { | |
75 | va_list params; | |
76 | ||
77 | va_start(params, warn); | |
78 | warn_routine(warn, params); | |
79 | va_end(params); | |
80 | } |