]>
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 | 9 | static FILE *error_handle; |
f4c3edc0 | 10 | static int tweaked_error_buffering; |
3b331e92 | 11 | |
ebaa79f4 | 12 | void vreportf(const char *prefix, const char *err, va_list params) |
0fcfd160 | 13 | { |
3b331e92 | 14 | FILE *fh = error_handle ? error_handle : stderr; |
f4c3edc0 JK |
15 | |
16 | fflush(fh); | |
17 | if (!tweaked_error_buffering) { | |
18 | setvbuf(fh, NULL, _IOLBF, 0); | |
19 | tweaked_error_buffering = 1; | |
20 | } | |
21 | ||
22 | fputs(prefix, fh); | |
23 | vfprintf(fh, err, params); | |
24 | fputc('\n', fh); | |
3bc4181f CB |
25 | } |
26 | ||
64b1cb74 | 27 | static NORETURN void usage_builtin(const char *err, va_list params) |
0fcfd160 | 28 | { |
ebaa79f4 | 29 | vreportf("usage: ", err, params); |
5d1a5c02 | 30 | exit(129); |
0fcfd160 LT |
31 | } |
32 | ||
ce88ac5b | 33 | static NORETURN void die_builtin(const char *err, va_list params) |
39a3f5ea | 34 | { |
ebaa79f4 | 35 | vreportf("fatal: ", err, params); |
39a3f5ea PB |
36 | exit(128); |
37 | } | |
38 | ||
ce88ac5b | 39 | static void error_builtin(const char *err, va_list params) |
39a3f5ea | 40 | { |
ebaa79f4 | 41 | vreportf("error: ", err, params); |
39a3f5ea PB |
42 | } |
43 | ||
fa39b6b5 SP |
44 | static void warn_builtin(const char *warn, va_list params) |
45 | { | |
ebaa79f4 | 46 | vreportf("warning: ", warn, params); |
fa39b6b5 | 47 | } |
39a3f5ea | 48 | |
c19a490e JK |
49 | static int die_is_recursing_builtin(void) |
50 | { | |
51 | static int dying; | |
52 | return dying++; | |
53 | } | |
54 | ||
39a3f5ea PB |
55 | /* If we are in a dlopen()ed .so write to a global variable would segfault |
56 | * (ugh), so keep things static. */ | |
64b1cb74 | 57 | static NORETURN_PTR void (*usage_routine)(const char *err, va_list params) = usage_builtin; |
18660bc9 | 58 | static NORETURN_PTR void (*die_routine)(const char *err, va_list params) = die_builtin; |
39a3f5ea | 59 | static void (*error_routine)(const char *err, va_list params) = error_builtin; |
fa39b6b5 | 60 | static void (*warn_routine)(const char *err, va_list params) = warn_builtin; |
c19a490e | 61 | static int (*die_is_recursing)(void) = die_is_recursing_builtin; |
39a3f5ea | 62 | |
18660bc9 | 63 | void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params)) |
39a3f5ea PB |
64 | { |
65 | die_routine = routine; | |
66 | } | |
67 | ||
3bc4181f CB |
68 | void set_error_routine(void (*routine)(const char *err, va_list params)) |
69 | { | |
70 | error_routine = routine; | |
71 | } | |
72 | ||
725149be CC |
73 | void (*get_error_routine(void))(const char *err, va_list params) |
74 | { | |
75 | return error_routine; | |
76 | } | |
77 | ||
b83f108b CC |
78 | void set_warn_routine(void (*routine)(const char *warn, va_list params)) |
79 | { | |
80 | warn_routine = routine; | |
81 | } | |
82 | ||
725149be CC |
83 | void (*get_warn_routine(void))(const char *warn, va_list params) |
84 | { | |
85 | return warn_routine; | |
86 | } | |
87 | ||
c19a490e JK |
88 | void set_die_is_recursing_routine(int (*routine)(void)) |
89 | { | |
90 | die_is_recursing = routine; | |
91 | } | |
92 | ||
3b331e92 JK |
93 | void set_error_handle(FILE *fh) |
94 | { | |
95 | error_handle = fh; | |
f4c3edc0 | 96 | tweaked_error_buffering = 0; |
3b331e92 JK |
97 | } |
98 | ||
c2e86add | 99 | void NORETURN usagef(const char *err, ...) |
64b1cb74 JN |
100 | { |
101 | va_list params; | |
102 | ||
103 | va_start(params, err); | |
104 | usage_routine(err, params); | |
105 | va_end(params); | |
106 | } | |
107 | ||
c2e86add | 108 | void NORETURN usage(const char *err) |
39a3f5ea | 109 | { |
64b1cb74 | 110 | usagef("%s", err); |
39a3f5ea PB |
111 | } |
112 | ||
c2e86add | 113 | void NORETURN die(const char *err, ...) |
0fcfd160 LT |
114 | { |
115 | va_list params; | |
116 | ||
c19a490e | 117 | if (die_is_recursing()) { |
cd163d4b BC |
118 | fputs("fatal: recursion detected in die handler\n", stderr); |
119 | exit(128); | |
120 | } | |
cd163d4b | 121 | |
0fcfd160 | 122 | va_start(params, err); |
39a3f5ea | 123 | die_routine(err, params); |
0fcfd160 | 124 | va_end(params); |
0fcfd160 LT |
125 | } |
126 | ||
58e4e511 | 127 | static const char *fmt_with_err(char *buf, int n, const char *fmt) |
b875036e | 128 | { |
f8b5a8e1 JH |
129 | char str_error[256], *err; |
130 | int i, j; | |
131 | ||
132 | err = strerror(errno); | |
133 | for (i = j = 0; err[i] && j < sizeof(str_error) - 1; ) { | |
134 | if ((str_error[j++] = err[i++]) != '%') | |
135 | continue; | |
136 | if (j < sizeof(str_error) - 1) { | |
137 | str_error[j++] = '%'; | |
138 | } else { | |
139 | /* No room to double the '%', so we overwrite it with | |
140 | * '\0' below */ | |
141 | j--; | |
142 | break; | |
143 | } | |
144 | } | |
145 | str_error[j] = 0; | |
58e4e511 NTND |
146 | snprintf(buf, n, "%s: %s", fmt, str_error); |
147 | return buf; | |
148 | } | |
149 | ||
150 | void NORETURN die_errno(const char *fmt, ...) | |
151 | { | |
152 | char buf[1024]; | |
153 | va_list params; | |
154 | ||
155 | if (die_is_recursing()) { | |
156 | fputs("fatal: recursion detected in die_errno handler\n", | |
157 | stderr); | |
158 | exit(128); | |
159 | } | |
b875036e TR |
160 | |
161 | va_start(params, fmt); | |
58e4e511 | 162 | die_routine(fmt_with_err(buf, sizeof(buf), fmt), params); |
b875036e TR |
163 | va_end(params); |
164 | } | |
165 | ||
4df5e918 | 166 | #undef error_errno |
fd1d6723 NTND |
167 | int error_errno(const char *fmt, ...) |
168 | { | |
169 | char buf[1024]; | |
170 | va_list params; | |
171 | ||
172 | va_start(params, fmt); | |
173 | error_routine(fmt_with_err(buf, sizeof(buf), fmt), params); | |
174 | va_end(params); | |
175 | return -1; | |
176 | } | |
177 | ||
e208f9cc | 178 | #undef error |
0fcfd160 LT |
179 | int error(const char *err, ...) |
180 | { | |
181 | va_list params; | |
182 | ||
183 | va_start(params, err); | |
39a3f5ea | 184 | error_routine(err, params); |
0fcfd160 LT |
185 | va_end(params); |
186 | return -1; | |
187 | } | |
fa39b6b5 | 188 | |
fd1d6723 NTND |
189 | void warning_errno(const char *warn, ...) |
190 | { | |
191 | char buf[1024]; | |
192 | va_list params; | |
193 | ||
194 | va_start(params, warn); | |
195 | warn_routine(fmt_with_err(buf, sizeof(buf), warn), params); | |
196 | va_end(params); | |
197 | } | |
198 | ||
46efd2d9 | 199 | void warning(const char *warn, ...) |
fa39b6b5 SP |
200 | { |
201 | va_list params; | |
202 | ||
203 | va_start(params, warn); | |
204 | warn_routine(warn, params); | |
205 | va_end(params); | |
206 | } |