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f8b5a8e13c
[tr: handle border case where % is placed at end of buffer] Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
109 lines
2.2 KiB
C
109 lines
2.2 KiB
C
/*
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* GIT - The information manager from hell
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include "git-compat-util.h"
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static void report(const char *prefix, const char *err, va_list params)
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{
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char msg[1024];
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vsnprintf(msg, sizeof(msg), err, params);
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fprintf(stderr, "%s%s\n", prefix, msg);
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}
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static NORETURN void usage_builtin(const char *err)
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{
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fprintf(stderr, "usage: %s\n", err);
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exit(129);
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}
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static NORETURN void die_builtin(const char *err, va_list params)
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{
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report("fatal: ", err, params);
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exit(128);
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}
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static void error_builtin(const char *err, va_list params)
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{
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report("error: ", err, params);
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}
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static void warn_builtin(const char *warn, va_list params)
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{
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report("warning: ", warn, params);
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}
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/* If we are in a dlopen()ed .so write to a global variable would segfault
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* (ugh), so keep things static. */
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static void (*usage_routine)(const char *err) NORETURN = usage_builtin;
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static void (*die_routine)(const char *err, va_list params) NORETURN = die_builtin;
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static void (*error_routine)(const char *err, va_list params) = error_builtin;
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static void (*warn_routine)(const char *err, va_list params) = warn_builtin;
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void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN)
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{
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die_routine = routine;
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}
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void usage(const char *err)
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{
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usage_routine(err);
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}
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void die(const char *err, ...)
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{
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va_list params;
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va_start(params, err);
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die_routine(err, params);
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va_end(params);
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}
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void die_errno(const char *fmt, ...)
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{
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va_list params;
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char fmt_with_err[1024];
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char str_error[256], *err;
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int i, j;
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err = strerror(errno);
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for (i = j = 0; err[i] && j < sizeof(str_error) - 1; ) {
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if ((str_error[j++] = err[i++]) != '%')
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continue;
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if (j < sizeof(str_error) - 1) {
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str_error[j++] = '%';
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} else {
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/* No room to double the '%', so we overwrite it with
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* '\0' below */
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j--;
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break;
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}
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}
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str_error[j] = 0;
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snprintf(fmt_with_err, sizeof(fmt_with_err), "%s: %s", fmt, str_error);
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va_start(params, fmt);
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die_routine(fmt_with_err, params);
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va_end(params);
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}
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int error(const char *err, ...)
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{
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va_list params;
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va_start(params, err);
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error_routine(err, params);
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va_end(params);
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return -1;
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}
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void warning(const char *warn, ...)
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{
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va_list params;
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va_start(params, warn);
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warn_routine(warn, params);
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va_end(params);
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}
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