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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>
static struct {
int num;
const char *str;
} error_codes[] = {
{GIT_ERROR, "Unspecified error"},
{GIT_ENOTOID, "Input was not a properly formatted Git object id."},
{GIT_ENOTFOUND, "Object does not exist in the scope searched."},
{GIT_ENOMEM, "Not enough space available."},
{GIT_EOSERR, "Consult the OS error information."},
{GIT_EOBJTYPE, "The specified object is of invalid type"},
{GIT_EOBJCORRUPTED, "The specified object has its data corrupted"},
{GIT_ENOTAREPO, "The specified repository is invalid"},
{GIT_EINVALIDTYPE, "The object or config variable type is invalid or doesn't match"},
{GIT_EMISSINGOBJDATA, "The object cannot be written that because it's missing internal data"},
{GIT_EPACKCORRUPTED, "The packfile for the ODB is corrupted"},
{GIT_EFLOCKFAIL, "Failed to adquire or release a file lock"},
{GIT_EZLIB, "The Z library failed to inflate/deflate an object's data"},
{GIT_EBUSY, "The queried object is currently busy"},
{GIT_EINVALIDPATH, "The path is invalid"},
{GIT_EBAREINDEX, "The index file is not backed up by an existing repository"},
{GIT_EINVALIDREFNAME, "The name of the reference is not valid"},
{GIT_EREFCORRUPTED, "The specified reference has its data corrupted"},
{GIT_ETOONESTEDSYMREF, "The specified symbolic reference is too deeply nested"},
{GIT_EPACKEDREFSCORRUPTED, "The pack-refs file is either corrupted of its format is not currently supported"},
{GIT_EINVALIDPATH, "The path is invalid" },
{GIT_EREVWALKOVER, "The revision walker is empty; there are no more commits left to iterate"},
{GIT_EINVALIDREFSTATE, "The state of the reference is not valid"},
{GIT_ENOTIMPLEMENTED, "This feature has not been implemented yet"},
{GIT_EEXISTS, "A reference with this name already exists"},
{GIT_EOVERFLOW, "The given integer literal is too large to be parsed"},
{GIT_ENOTNUM, "The given literal is not a valid number"},
{GIT_EAMBIGUOUS, "The given oid prefix is ambiguous"},
};
const char *git_strerror(int num)
{
size_t i;
if (num == GIT_EOSERR)
return strerror(errno);
for (i = 0; i < ARRAY_SIZE(error_codes); i++)
if (num == error_codes[i].num)
return error_codes[i].str;
return "Unknown error";
}
#define ERROR_MAX_LEN 1024
void git___rethrow(const char *msg, ...)
{
char new_error[ERROR_MAX_LEN];
char *last_error;
char *old_error = NULL;
va_list va;
last_error = GIT_GLOBAL->error.last;
va_start(va, msg);
vsnprintf(new_error, ERROR_MAX_LEN, msg, va);
va_end(va);
old_error = git__strdup(last_error);
snprintf(last_error, ERROR_MAX_LEN, "%s \n - %s", new_error, old_error);
git__free(old_error);
}
void git___throw(const char *msg, ...)
{
va_list va;
va_start(va, msg);
vsnprintf(GIT_GLOBAL->error.last, ERROR_MAX_LEN, msg, va);
va_end(va);
}
const char *git_lasterror(void)
{
char *last_error = GIT_GLOBAL->error.last;
if (!last_error[0]) {
const git_error *err = git_error_last();
if (err != NULL)
return err->message;
return NULL;
}
return last_error;
}
void git_clearerror(void)
{
char *last_error = GIT_GLOBAL->error.last;
last_error[0] = '\0';
}
/********************************************
* 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 *git_error_last(void)
{
return GIT_GLOBAL->last_error;
}
void git_error_clear(void)
{
giterr_clear();
}
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