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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"
/********************************************
* New error handling
********************************************/
static git_error g_git_oom_error = {
"Out of memory",
GIT_ERROR_NOMEMORY
};
static void set_error_from_buffer(int error_class)
{
git_error *error = &GIT_GLOBAL->error_t;
git_buf *buf = &GIT_GLOBAL->error_buf;
error->message = buf->ptr;
error->klass = error_class;
GIT_GLOBAL->last_error = error;
}
static void set_error(int error_class, char *string)
{
git_buf *buf = &GIT_GLOBAL->error_buf;
git_buf_clear(buf);
if (string) {
git_buf_puts(buf, string);
git__free(string);
}
set_error_from_buffer(error_class);
}
void git_error_set_oom(void)
{
GIT_GLOBAL->last_error = &g_git_oom_error;
}
void git_error_set(int error_class, const char *string, ...)
{
va_list arglist;
#ifdef GIT_WIN32
DWORD win32_error_code = (error_class == GIT_ERROR_OS) ? GetLastError() : 0;
#endif
int error_code = (error_class == GIT_ERROR_OS) ? errno : 0;
git_buf *buf = &GIT_GLOBAL->error_buf;
git_buf_clear(buf);
if (string) {
va_start(arglist, string);
git_buf_vprintf(buf, string, arglist);
va_end(arglist);
if (error_class == GIT_ERROR_OS)
git_buf_PUTS(buf, ": ");
}
if (error_class == GIT_ERROR_OS) {
#ifdef GIT_WIN32
char * win32_error = git_win32_get_error_message(win32_error_code);
if (win32_error) {
git_buf_puts(buf, win32_error);
git__free(win32_error);
SetLastError(0);
}
else
#endif
if (error_code)
git_buf_puts(buf, strerror(error_code));
if (error_code)
errno = 0;
}
if (!git_buf_oom(buf))
set_error_from_buffer(error_class);
}
void git_error_set_str(int error_class, const char *string)
{
git_buf *buf = &GIT_GLOBAL->error_buf;
assert(string);
if (!string)
return;
git_buf_clear(buf);
git_buf_puts(buf, string);
if (!git_buf_oom(buf))
set_error_from_buffer(error_class);
}
int git_error_set_regex(const regex_t *regex, int error_code)
{
char error_buf[1024];
assert(error_code);
regerror(error_code, regex, error_buf, sizeof(error_buf));
git_error_set_str(GIT_ERROR_REGEX, error_buf);
if (error_code == REG_NOMATCH)
return GIT_ENOTFOUND;
return GIT_EINVALIDSPEC;
}
void git_error_clear(void)
{
if (GIT_GLOBAL->last_error != NULL) {
set_error(0, NULL);
GIT_GLOBAL->last_error = NULL;
}
errno = 0;
#ifdef GIT_WIN32
SetLastError(0);
#endif
}
const git_error *git_error_last(void)
{
return GIT_GLOBAL->last_error;
}
int git_error_state_capture(git_error_state *state, int error_code)
{
git_error *error = GIT_GLOBAL->last_error;
git_buf *error_buf = &GIT_GLOBAL->error_buf;
memset(state, 0, sizeof(git_error_state));
if (!error_code)
return 0;
state->error_code = error_code;
state->oom = (error == &g_git_oom_error);
if (error) {
state->error_msg.klass = error->klass;
if (state->oom)
state->error_msg.message = g_git_oom_error.message;
else
state->error_msg.message = git_buf_detach(error_buf);
}
git_error_clear();
return error_code;
}
int git_error_state_restore(git_error_state *state)
{
int ret = 0;
git_error_clear();
if (state && state->error_msg.message) {
if (state->oom)
git_error_set_oom();
else
set_error(state->error_msg.klass, state->error_msg.message);
ret = state->error_code;
memset(state, 0, sizeof(git_error_state));
}
return ret;
}
void git_error_state_free(git_error_state *state)
{
if (!state)
return;
if (!state->oom)
git__free(state->error_msg.message);
memset(state, 0, sizeof(git_error_state));
}
int git_error_system_last(void)
{
#ifdef GIT_WIN32
return GetLastError();
#else
return errno;
#endif
}
void git_error_system_set(int code)
{
#ifdef GIT_WIN32
SetLastError(code);
#else
errno = code;
#endif
}
/* Deprecated error values and functions */
const git_error *giterr_last(void)
{
return git_error_last();
}
void giterr_clear(void)
{
git_error_clear();
}
void giterr_set_str(int error_class, const char *string)
{
return git_error_set_str(error_class, string);
}
void giterr_set_oom(void)
{
git_error_set_oom();
}
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