2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
6 #include "git-compat-util.h"
8 static void report(const char *prefix, const char *err, va_list params)
11 vsnprintf(msg, sizeof(msg), err, params);
12 fprintf(stderr, "%s%s\n", prefix, msg);
15 static NORETURN void usage_builtin(const char *err)
17 fprintf(stderr, "usage: %s\n", err);
21 static NORETURN void die_builtin(const char *err, va_list params)
23 report("fatal: ", err, params);
27 static void error_builtin(const char *err, va_list params)
29 report("error: ", err, params);
32 static void warn_builtin(const char *warn, va_list params)
34 report("warning: ", warn, params);
37 /* If we are in a dlopen()ed .so write to a global variable would segfault
38 * (ugh), so keep things static. */
39 static NORETURN_PTR void (*usage_routine)(const char *err) = usage_builtin;
40 static NORETURN_PTR void (*die_routine)(const char *err, va_list params) = die_builtin;
41 static void (*error_routine)(const char *err, va_list params) = error_builtin;
42 static void (*warn_routine)(const char *err, va_list params) = warn_builtin;
44 void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params))
46 die_routine = routine;
49 void usage(const char *err)
54 void die(const char *err, ...)
58 va_start(params, err);
59 die_routine(err, params);
63 void die_errno(const char *fmt, ...)
66 char fmt_with_err[1024];
67 char str_error[256], *err;
70 err = strerror(errno);
71 for (i = j = 0; err[i] && j < sizeof(str_error) - 1; ) {
72 if ((str_error[j++] = err[i++]) != '%')
74 if (j < sizeof(str_error) - 1) {
77 /* No room to double the '%', so we overwrite it with
84 snprintf(fmt_with_err, sizeof(fmt_with_err), "%s: %s", fmt, str_error);
86 va_start(params, fmt);
87 die_routine(fmt_with_err, params);
91 int error(const char *err, ...)
95 va_start(params, err);
96 error_routine(err, params);
101 void warning(const char *warn, ...)
105 va_start(params, warn);
106 warn_routine(warn, params);