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18660bc96e
Some compilers (including at least MSVC and ARM RVDS) supports NORETURN on function declarations, but not on function pointers. This patch makes it possible to define NORETURN for these compilers, by splitting the NORETURN macro into two - one for function declarations and one for function pointers. Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Jeff King <peff@peff.net>
109 lines
2.3 KiB
C
109 lines
2.3 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 NORETURN_PTR void (*usage_routine)(const char *err) = usage_builtin;
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static NORETURN_PTR void (*die_routine)(const char *err, va_list params) = 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(NORETURN_PTR void (*routine)(const char *err, va_list params))
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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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