protobuf/upb/base/status.c

// Protocol Buffers - Google's data interchange format
// Copyright 2023 Google LLC.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google LLC nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "upb/base/status.h"

#include <errno.h>
#include <float.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>

// Must be last.
#include "upb/port/def.inc"

void upb_Status_Clear(upb_Status* status) {
  if (!status) return;
  status->ok = true;
  status->msg[0] = '\0';
}

bool upb_Status_IsOk(const upb_Status* status) { return status->ok; }

const char* upb_Status_ErrorMessage(const upb_Status* status) {
  return status->msg;
}

void upb_Status_SetErrorMessage(upb_Status* status, const char* msg) {
  if (!status) return;
  status->ok = false;
  strncpy(status->msg, msg, _kUpb_Status_MaxMessage - 1);
  status->msg[_kUpb_Status_MaxMessage - 1] = '\0';
}

void upb_Status_SetErrorFormat(upb_Status* status, const char* fmt, ...) {
  va_list args;
  va_start(args, fmt);
  upb_Status_VSetErrorFormat(status, fmt, args);
  va_end(args);
}

void upb_Status_VSetErrorFormat(upb_Status* status, const char* fmt,
                                va_list args) {
  if (!status) return;
  status->ok = false;
  vsnprintf(status->msg, sizeof(status->msg), fmt, args);
  status->msg[_kUpb_Status_MaxMessage - 1] = '\0';
}

void upb_Status_VAppendErrorFormat(upb_Status* status, const char* fmt,
                                   va_list args) {
  size_t len;
  if (!status) return;
  status->ok = false;
  len = strlen(status->msg);
  vsnprintf(status->msg + len, sizeof(status->msg) - len, fmt, args);
  status->msg[_kUpb_Status_MaxMessage - 1] = '\0';
}