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