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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include "common.h"
#include "global.h"
#include "posix.h"
#include "buffer.h"
#include <stdarg.h>
/********************************************
* New error handling
********************************************/
static git_error g_git_oom_error = {
"Out of memory",
GITERR_NOMEMORY
};
static void set_error(int error_class, char *string)
{
git_error *error = &GIT_GLOBAL->error_t;
git__free(error->message);
error->message = string;
error->klass = error_class;
GIT_GLOBAL->last_error = error;
}
void giterr_set_oom(void)
{
GIT_GLOBAL->last_error = &g_git_oom_error;
}
void giterr_set(int error_class, const char *string, ...)
{
git_buf buf = GIT_BUF_INIT;
va_list arglist;
#ifdef GIT_WIN32
DWORD win32_error_code = (error_class == GITERR_OS) ? GetLastError() : 0;
#endif
int error_code = (error_class == GITERR_OS) ? errno : 0;
va_start(arglist, string);
git_buf_vprintf(&buf, string, arglist);
va_end(arglist);
if (error_class == GITERR_OS) {
#ifdef GIT_WIN32
if (win32_error_code) {
LPWSTR lpMsgBuf = NULL;
int size = FormatMessageW(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, win32_error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPWSTR)&lpMsgBuf, 0, NULL);
if (size) {
int utf8_size = size * 4 + 1;
char *lpMsgBuf_utf8 = git__calloc(utf8_size, sizeof(char));
GITERR_CHECK_ALLOC(lpMsgBuf_utf8);
WideCharToMultiByte(CP_UTF8, 0, lpMsgBuf, size, lpMsgBuf_utf8, utf8_size, NULL, NULL);
git_buf_PUTS(&buf, ": ");
git_buf_puts(&buf, lpMsgBuf_utf8);
LocalFree(lpMsgBuf);
git__free(lpMsgBuf_utf8);
}
SetLastError(0);
}
else
#endif
if (error_code) {
git_buf_PUTS(&buf, ": ");
git_buf_puts(&buf, strerror(error_code));
}
if (error_code)
errno = 0;
}
if (!git_buf_oom(&buf))
set_error(error_class, git_buf_detach(&buf));
}
void giterr_set_str(int error_class, const char *string)
{
char *message;
assert(string);
message = git__strdup(string);
if (message)
set_error(error_class, message);
}
int giterr_set_regex(const regex_t *regex, int error_code)
{
char error_buf[1024];
regerror(error_code, regex, error_buf, sizeof(error_buf));
giterr_set_str(GITERR_REGEX, error_buf);
if (error_code == REG_NOMATCH)
return GIT_ENOTFOUND;
else if (error_code > REG_BADPAT)
return GIT_EINVALIDSPEC;
else
return -1;
}
void giterr_clear(void)
{
GIT_GLOBAL->last_error = NULL;
errno = 0;
#ifdef GIT_WIN32
SetLastError(0);
#endif
}
const git_error *giterr_last(void)
{
return GIT_GLOBAL->last_error;
}
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