]>
Commit | Line | Data |
---|---|---|
0fcfd160 LT |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
4050c0df | 6 | #include "git-compat-util.h" |
0fcfd160 LT |
7 | |
8 | static void report(const char *prefix, const char *err, va_list params) | |
9 | { | |
625a860c | 10 | char msg[4096]; |
d048a96e NP |
11 | vsnprintf(msg, sizeof(msg), err, params); |
12 | fprintf(stderr, "%s%s\n", prefix, msg); | |
0fcfd160 LT |
13 | } |
14 | ||
64b1cb74 | 15 | static NORETURN void usage_builtin(const char *err, va_list params) |
0fcfd160 | 16 | { |
64b1cb74 | 17 | report("usage: ", err, params); |
5d1a5c02 | 18 | exit(129); |
0fcfd160 LT |
19 | } |
20 | ||
ce88ac5b | 21 | static NORETURN void die_builtin(const char *err, va_list params) |
39a3f5ea PB |
22 | { |
23 | report("fatal: ", err, params); | |
24 | exit(128); | |
25 | } | |
26 | ||
ce88ac5b | 27 | static void error_builtin(const char *err, va_list params) |
39a3f5ea PB |
28 | { |
29 | report("error: ", err, params); | |
30 | } | |
31 | ||
fa39b6b5 SP |
32 | static void warn_builtin(const char *warn, va_list params) |
33 | { | |
34 | report("warning: ", warn, params); | |
35 | } | |
39a3f5ea PB |
36 | |
37 | /* If we are in a dlopen()ed .so write to a global variable would segfault | |
38 | * (ugh), so keep things static. */ | |
64b1cb74 | 39 | static NORETURN_PTR void (*usage_routine)(const char *err, va_list params) = usage_builtin; |
18660bc9 | 40 | static NORETURN_PTR void (*die_routine)(const char *err, va_list params) = die_builtin; |
39a3f5ea | 41 | static void (*error_routine)(const char *err, va_list params) = error_builtin; |
fa39b6b5 | 42 | static void (*warn_routine)(const char *err, va_list params) = warn_builtin; |
39a3f5ea | 43 | |
18660bc9 | 44 | void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params)) |
39a3f5ea PB |
45 | { |
46 | die_routine = routine; | |
47 | } | |
48 | ||
64b1cb74 JN |
49 | void usagef(const char *err, ...) |
50 | { | |
51 | va_list params; | |
52 | ||
53 | va_start(params, err); | |
54 | usage_routine(err, params); | |
55 | va_end(params); | |
56 | } | |
57 | ||
39a3f5ea PB |
58 | void usage(const char *err) |
59 | { | |
64b1cb74 | 60 | usagef("%s", err); |
39a3f5ea PB |
61 | } |
62 | ||
0fcfd160 LT |
63 | void die(const char *err, ...) |
64 | { | |
65 | va_list params; | |
66 | ||
67 | va_start(params, err); | |
39a3f5ea | 68 | die_routine(err, params); |
0fcfd160 | 69 | va_end(params); |
0fcfd160 LT |
70 | } |
71 | ||
b875036e TR |
72 | void die_errno(const char *fmt, ...) |
73 | { | |
74 | va_list params; | |
75 | char fmt_with_err[1024]; | |
f8b5a8e1 JH |
76 | char str_error[256], *err; |
77 | int i, j; | |
78 | ||
79 | err = strerror(errno); | |
80 | for (i = j = 0; err[i] && j < sizeof(str_error) - 1; ) { | |
81 | if ((str_error[j++] = err[i++]) != '%') | |
82 | continue; | |
83 | if (j < sizeof(str_error) - 1) { | |
84 | str_error[j++] = '%'; | |
85 | } else { | |
86 | /* No room to double the '%', so we overwrite it with | |
87 | * '\0' below */ | |
88 | j--; | |
89 | break; | |
90 | } | |
91 | } | |
92 | str_error[j] = 0; | |
93 | snprintf(fmt_with_err, sizeof(fmt_with_err), "%s: %s", fmt, str_error); | |
b875036e TR |
94 | |
95 | va_start(params, fmt); | |
96 | die_routine(fmt_with_err, params); | |
97 | va_end(params); | |
98 | } | |
99 | ||
0fcfd160 LT |
100 | int error(const char *err, ...) |
101 | { | |
102 | va_list params; | |
103 | ||
104 | va_start(params, err); | |
39a3f5ea | 105 | error_routine(err, params); |
0fcfd160 LT |
106 | va_end(params); |
107 | return -1; | |
108 | } | |
fa39b6b5 | 109 | |
46efd2d9 | 110 | void warning(const char *warn, ...) |
fa39b6b5 SP |
111 | { |
112 | va_list params; | |
113 | ||
114 | va_start(params, warn); | |
115 | warn_routine(warn, params); | |
116 | va_end(params); | |
117 | } |