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