]>
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" |
3bc4181f | 7 | #include "cache.h" |
0fcfd160 | 8 | |
3b331e92 JK |
9 | static FILE *error_handle; |
10 | ||
ebaa79f4 | 11 | void vreportf(const char *prefix, const char *err, va_list params) |
0fcfd160 | 12 | { |
625a860c | 13 | char msg[4096]; |
3b331e92 | 14 | FILE *fh = error_handle ? error_handle : stderr; |
d048a96e | 15 | vsnprintf(msg, sizeof(msg), err, params); |
3b331e92 | 16 | fprintf(fh, "%s%s\n", prefix, msg); |
3bc4181f CB |
17 | } |
18 | ||
64b1cb74 | 19 | static NORETURN void usage_builtin(const char *err, va_list params) |
0fcfd160 | 20 | { |
ebaa79f4 | 21 | vreportf("usage: ", err, params); |
5d1a5c02 | 22 | exit(129); |
0fcfd160 LT |
23 | } |
24 | ||
ce88ac5b | 25 | static NORETURN void die_builtin(const char *err, va_list params) |
39a3f5ea | 26 | { |
ebaa79f4 | 27 | vreportf("fatal: ", err, params); |
39a3f5ea PB |
28 | exit(128); |
29 | } | |
30 | ||
ce88ac5b | 31 | static void error_builtin(const char *err, va_list params) |
39a3f5ea | 32 | { |
ebaa79f4 | 33 | vreportf("error: ", err, params); |
39a3f5ea PB |
34 | } |
35 | ||
fa39b6b5 SP |
36 | static void warn_builtin(const char *warn, va_list params) |
37 | { | |
ebaa79f4 | 38 | vreportf("warning: ", warn, params); |
fa39b6b5 | 39 | } |
39a3f5ea | 40 | |
c19a490e JK |
41 | static int die_is_recursing_builtin(void) |
42 | { | |
43 | static int dying; | |
44 | return dying++; | |
45 | } | |
46 | ||
39a3f5ea PB |
47 | /* If we are in a dlopen()ed .so write to a global variable would segfault |
48 | * (ugh), so keep things static. */ | |
64b1cb74 | 49 | static NORETURN_PTR void (*usage_routine)(const char *err, va_list params) = usage_builtin; |
18660bc9 | 50 | static NORETURN_PTR void (*die_routine)(const char *err, va_list params) = die_builtin; |
39a3f5ea | 51 | static void (*error_routine)(const char *err, va_list params) = error_builtin; |
fa39b6b5 | 52 | static void (*warn_routine)(const char *err, va_list params) = warn_builtin; |
c19a490e | 53 | static int (*die_is_recursing)(void) = die_is_recursing_builtin; |
39a3f5ea | 54 | |
18660bc9 | 55 | void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params)) |
39a3f5ea PB |
56 | { |
57 | die_routine = routine; | |
58 | } | |
59 | ||
3bc4181f CB |
60 | void set_error_routine(void (*routine)(const char *err, va_list params)) |
61 | { | |
62 | error_routine = routine; | |
63 | } | |
64 | ||
c19a490e JK |
65 | void set_die_is_recursing_routine(int (*routine)(void)) |
66 | { | |
67 | die_is_recursing = routine; | |
68 | } | |
69 | ||
3b331e92 JK |
70 | void set_error_handle(FILE *fh) |
71 | { | |
72 | error_handle = fh; | |
73 | } | |
74 | ||
c2e86add | 75 | void NORETURN usagef(const char *err, ...) |
64b1cb74 JN |
76 | { |
77 | va_list params; | |
78 | ||
79 | va_start(params, err); | |
80 | usage_routine(err, params); | |
81 | va_end(params); | |
82 | } | |
83 | ||
c2e86add | 84 | void NORETURN usage(const char *err) |
39a3f5ea | 85 | { |
64b1cb74 | 86 | usagef("%s", err); |
39a3f5ea PB |
87 | } |
88 | ||
c2e86add | 89 | void NORETURN die(const char *err, ...) |
0fcfd160 LT |
90 | { |
91 | va_list params; | |
92 | ||
c19a490e | 93 | if (die_is_recursing()) { |
cd163d4b BC |
94 | fputs("fatal: recursion detected in die handler\n", stderr); |
95 | exit(128); | |
96 | } | |
cd163d4b | 97 | |
0fcfd160 | 98 | va_start(params, err); |
39a3f5ea | 99 | die_routine(err, params); |
0fcfd160 | 100 | va_end(params); |
0fcfd160 LT |
101 | } |
102 | ||
c2e86add | 103 | void NORETURN die_errno(const char *fmt, ...) |
b875036e TR |
104 | { |
105 | va_list params; | |
106 | char fmt_with_err[1024]; | |
f8b5a8e1 JH |
107 | char str_error[256], *err; |
108 | int i, j; | |
109 | ||
c19a490e | 110 | if (die_is_recursing()) { |
cd163d4b BC |
111 | fputs("fatal: recursion detected in die_errno handler\n", |
112 | stderr); | |
113 | exit(128); | |
114 | } | |
cd163d4b | 115 | |
f8b5a8e1 JH |
116 | err = strerror(errno); |
117 | for (i = j = 0; err[i] && j < sizeof(str_error) - 1; ) { | |
118 | if ((str_error[j++] = err[i++]) != '%') | |
119 | continue; | |
120 | if (j < sizeof(str_error) - 1) { | |
121 | str_error[j++] = '%'; | |
122 | } else { | |
123 | /* No room to double the '%', so we overwrite it with | |
124 | * '\0' below */ | |
125 | j--; | |
126 | break; | |
127 | } | |
128 | } | |
129 | str_error[j] = 0; | |
130 | snprintf(fmt_with_err, sizeof(fmt_with_err), "%s: %s", fmt, str_error); | |
b875036e TR |
131 | |
132 | va_start(params, fmt); | |
133 | die_routine(fmt_with_err, params); | |
134 | va_end(params); | |
135 | } | |
136 | ||
e208f9cc | 137 | #undef error |
0fcfd160 LT |
138 | int error(const char *err, ...) |
139 | { | |
140 | va_list params; | |
141 | ||
142 | va_start(params, err); | |
39a3f5ea | 143 | error_routine(err, params); |
0fcfd160 LT |
144 | va_end(params); |
145 | return -1; | |
146 | } | |
fa39b6b5 | 147 | |
46efd2d9 | 148 | void warning(const char *warn, ...) |
fa39b6b5 SP |
149 | { |
150 | va_list params; | |
151 | ||
152 | va_start(params, warn); | |
153 | warn_routine(warn, params); | |
154 | va_end(params); | |
155 | } |