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/*
* Copyright (C) 2009-2012 the libgit2 contributors
*
* 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 <stdarg.h>
/********************************************
* New error handling
********************************************/
static git_error g_git_oom_error = {
"Out of memory",
GITERR_NOMEMORY
};
void giterr_set_oom(void)
{
GIT_GLOBAL->last_error = &g_git_oom_error;
}
void giterr_set(int error_class, const char *string, ...)
{
char error_str[1024];
va_list arglist;
/* Grab errno before calling vsnprintf() so it won't be overwritten */
const char *os_error_msg =
(error_class == GITERR_OS && errno != 0) ? strerror(errno) : NULL;
#ifdef GIT_WIN32
DWORD dwLastError = GetLastError();
#endif
va_start(arglist, string);
p_vsnprintf(error_str, sizeof(error_str), string, arglist);
va_end(arglist);
/* automatically suffix strerror(errno) for GITERR_OS errors */
if (error_class == GITERR_OS) {
if (os_error_msg != NULL) {
strncat(error_str, ": ", sizeof(error_str));
strncat(error_str, os_error_msg, sizeof(error_str));
errno = 0; /* reset so same error won't be reported twice */
}
#ifdef GIT_WIN32
else if (dwLastError != 0) {
LPVOID lpMsgBuf = NULL;
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, dwLastError, 0, (LPTSTR) &lpMsgBuf, 0, NULL);
if (lpMsgBuf) {
strncat(error_str, ": ", sizeof(error_str));
strncat(error_str, (const char *)lpMsgBuf, sizeof(error_str));
LocalFree(lpMsgBuf);
}
SetLastError(0);
}
#endif
}
giterr_set_str(error_class, error_str);
}
void giterr_set_str(int error_class, const char *string)
{
git_error *error = &GIT_GLOBAL->error_t;
git__free(error->message);
error->message = git__strdup(string);
error->klass = error_class;
if (error->message == NULL) {
giterr_set_oom();
return;
}
GIT_GLOBAL->last_error = error;
}
void 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);
}
void giterr_clear(void)
{
GIT_GLOBAL->last_error = NULL;
}
const git_error *giterr_last(void)
{
return GIT_GLOBAL->last_error;
}
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