osip_port.c

libosip2-3.0.3最新版本

          default:
            *t++ = *s;
            break;
        }
    }
  *t++ = '"';
  *t++ = '\0';
  return rtn;
}

void
osip_dequote (char *s)
{
  size_t len;

  if (*s == '\0')
    return;
  if (*s != '"')
    return;
  len = strlen (s);
  memmove (s, s + 1, len--);
  if (len > 0 && s[len - 1] == '"')
    s[--len] = '\0';
  for (; *s != '\0'; s++, len--)
    {
      if (*s == '\\')
        memmove (s, s + 1, len--);
    }
}

/**********************************************************/
/* only MACROS from osip/trace.h should be used by others */
/* TRACE_INITIALIZE(level,file))                          */
/* TRACE_ENABLE_LEVEL(level)                              */
/* TRACE_DISABLE_LEVEL(level)                             */
/* IS_TRACE_LEVEL_ACTIVATE(level)                         */
/**********************************************************/
#ifndef ENABLE_TRACE
void
osip_trace_initialize_func (osip_trace_level_t level, osip_trace_func_t * func)
{
}
void
osip_trace_initialize_syslog (osip_trace_level_t level, char *ident)
{
}
void
osip_trace_initialize (osip_trace_level_t level, FILE * file)
{
}
void
osip_trace_enable_level (osip_trace_level_t level)
{
}
void
osip_trace_disable_level (osip_trace_level_t level)
{
}

int
osip_is_trace_level_activate (osip_trace_level_t level)
{
  return LOG_FALSE;
}

#else

/* initialize log */
/* all lower levels of level are logged in file. */
void
osip_trace_initialize (osip_trace_level_t level, FILE * file)
{
  osip_trace_level_t i = 0;

  /* enable trace in log file by default */
  logfile = NULL;
  if (file != NULL)
    logfile = file;
#ifndef SYSTEM_LOGGER_ENABLED
  else
    logfile = stdout;
#endif

  /* enable all lower levels */
  while (i < END_TRACE_LEVEL)
    {
      if (i < level)
        tracing_table[i] = LOG_TRUE;
      else
        tracing_table[i] = LOG_FALSE;
      i++;
    }
}

void
osip_trace_initialize_syslog (osip_trace_level_t level, char *ident)
{
  osip_trace_level_t i = 0;

#if defined (HAVE_SYSLOG_H) && !defined(__arc__)
  openlog (ident, LOG_CONS | LOG_PID, LOG_DAEMON);
  use_syslog = 1;
#endif
  /* enable all lower levels */
  while (i < END_TRACE_LEVEL)
    {
      if (i < level)
        tracing_table[i] = LOG_TRUE;
      else
        tracing_table[i] = LOG_FALSE;
      i++;
    }
}

void
osip_trace_enable_until_level (osip_trace_level_t level)
{
  int i = 0;

  while (i < END_TRACE_LEVEL)
    {
      if (i < level)
        tracing_table[i] = LOG_TRUE;
      else
        tracing_table[i] = LOG_FALSE;
      i++;
    }
}

void
osip_trace_initialize_func (osip_trace_level_t level, osip_trace_func_t * func)
{
  int i = 0;

  trace_func = func;

  /* enable all lower levels */
  while (i < END_TRACE_LEVEL)
    {
      if (i < level)
        tracing_table[i] = LOG_TRUE;
      else
        tracing_table[i] = LOG_FALSE;
      i++;
    }
}

/* enable a special debugging level! */
void
osip_trace_enable_level (osip_trace_level_t level)
{
  tracing_table[level] = LOG_TRUE;
}

/* disable a special debugging level! */
void
osip_trace_disable_level (osip_trace_level_t level)
{
  tracing_table[level] = LOG_FALSE;
}

/* not so usefull? */
int
osip_is_trace_level_activate (osip_trace_level_t level)
{
  return tracing_table[level];
}
#endif

int
osip_trace (char *fi, int li, osip_trace_level_t level, FILE * f, char *chfr, ...)
{
#ifdef ENABLE_TRACE
  va_list ap;

#if !defined(WIN32) && !defined(SYSTEM_LOGGER_ENABLED)
  if (logfile == NULL && use_syslog == 0 && trace_func == NULL)
    {                           /* user did not initialize logger.. */
      return 1;
    }
#endif

  if (tracing_table[level] == LOG_FALSE)
    return 0;

  if (f == NULL && trace_func == NULL)
    f = logfile;

  VA_START (ap, chfr);

#if  defined(__VXWORKS_OS__) || defined(__rtems__)
  /* vxworks can't have a local file */
  f = stdout;
#endif

  if (f && use_syslog == 0)
    {
      if (level == OSIP_FATAL)
        fprintf (f, "| FATAL | <%s: %i> ", fi, li);
      else if (level == OSIP_BUG)
        fprintf (f, "|  BUG  | <%s: %i> ", fi, li);
      else if (level == OSIP_ERROR)
        fprintf (f, "| ERROR | <%s: %i> ", fi, li);
      else if (level == OSIP_WARNING)
        fprintf (f, "|WARNING| <%s: %i> ", fi, li);
      else if (level == OSIP_INFO1)
        fprintf (f, "| INFO1 | <%s: %i> ", fi, li);
      else if (level == OSIP_INFO2)
        fprintf (f, "| INFO2 | <%s: %i> ", fi, li);
      else if (level == OSIP_INFO3)
        fprintf (f, "| INFO3 | <%s: %i> ", fi, li);
      else if (level == OSIP_INFO4)
        fprintf (f, "| INFO4 | <%s: %i> ", fi, li);

      vfprintf (f, chfr, ap);

      fflush (f);
  } else if (trace_func)
    {
      trace_func (fi, li, level, chfr, ap);
    }
#if defined (HAVE_SYSLOG_H) && !defined(__arc__)
  else if (use_syslog == 1)
    {
      char buffer[512];
      int in = 0;

      memset (buffer, 0, sizeof (buffer));
      if (level == OSIP_FATAL)
        in = snprintf (buffer, 511, "| FATAL | <%s: %i> ", fi, li);
      else if (level == OSIP_BUG)
        in = snprintf (buffer, 511, "|  BUG  | <%s: %i> ", fi, li);
      else if (level == OSIP_ERROR)
        in = snprintf (buffer, 511, "| ERROR | <%s: %i> ", fi, li);
      else if (level == OSIP_WARNING)
        in = snprintf (buffer, 511, "|WARNING| <%s: %i> ", fi, li);
      else if (level == OSIP_INFO1)
        in = snprintf (buffer, 511, "| INFO1 | <%s: %i> ", fi, li);
      else if (level == OSIP_INFO2)
        in = snprintf (buffer, 511, "| INFO2 | <%s: %i> ", fi, li);
      else if (level == OSIP_INFO3)
        in = snprintf (buffer, 511, "| INFO3 | <%s: %i> ", fi, li);
      else if (level == OSIP_INFO4)
        in = snprintf (buffer, 511, "| INFO4 | <%s: %i> ", fi, li);

      vsnprintf (buffer + in, 511 - in, chfr, ap);
      if (level == OSIP_FATAL)
        syslog (LOG_ERR, "%s", buffer);
      else if (level == OSIP_BUG)
        syslog (LOG_ERR, "%s", buffer);
      else if (level == OSIP_ERROR)
        syslog (LOG_ERR, "%s", buffer);
      else if (level == OSIP_WARNING)
        syslog (LOG_WARNING, "%s", buffer);
      else if (level == OSIP_INFO1)
        syslog (LOG_INFO, "%s", buffer);
      else if (level == OSIP_INFO2)
        syslog (LOG_INFO, "%s", buffer);
      else if (level == OSIP_INFO3)
        syslog (LOG_DEBUG, "%s", buffer);
      else if (level == OSIP_INFO4)
        syslog (LOG_DEBUG, "%s", buffer);
    }
#endif
#ifdef SYSTEM_LOGGER_ENABLED
  else
    {
      char buffer[512];
      int in = 0;

      memset (buffer, 0, sizeof (buffer));
      if (level == OSIP_FATAL)
        in = _snprintf (buffer, 511, "| FATAL | <%s: %i> ", fi, li);
      else if (level == OSIP_BUG)
        in = _snprintf (buffer, 511, "|  BUG  | <%s: %i> ", fi, li);
      else if (level == OSIP_ERROR)
        in = _snprintf (buffer, 511, "| ERROR | <%s: %i> ", fi, li);
      else if (level == OSIP_WARNING)
        in = _snprintf (buffer, 511, "|WARNING| <%s: %i> ", fi, li);
      else if (level == OSIP_INFO1)
        in = _snprintf (buffer, 511, "| INFO1 | <%s: %i> ", fi, li);
      else if (level == OSIP_INFO2)
        in = _snprintf (buffer, 511, "| INFO2 | <%s: %i> ", fi, li);
      else if (level == OSIP_INFO3)
        in = _snprintf (buffer, 511, "| INFO3 | <%s: %i> ", fi, li);
      else if (level == OSIP_INFO4)
        in = _snprintf (buffer, 511, "| INFO4 | <%s: %i> ", fi, li);

      _vsnprintf (buffer + in, 511 - in, chfr, ap);
      OutputDebugString (buffer);
    }
#endif

  va_end (ap);
#endif
  return 0;
}



#if defined(WIN32) || defined(_WIN32_WCE)

#undef osip_malloc
void *
osip_malloc (size_t size)
{
  void *ptr = malloc (size);

  if (ptr != NULL)
    memset (ptr, 0, size);
  return ptr;
}

#undef osip_realloc
void *
osip_realloc (void *ptr, size_t size)
{
  return realloc (ptr, size);
}

#undef osip_free
void
osip_free (void *ptr)
{
  if (ptr == NULL)
    return;
  free (ptr);
}

#else

#ifndef MINISIZE
void
osip_set_allocators (osip_malloc_func_t * malloc_func,
                     osip_realloc_func_t * realloc_func,
                     osip_free_func_t * free_func)
{
  osip_malloc_func = malloc_func;
  osip_realloc_func = realloc_func;
  osip_free_func = free_func;
}
#endif

#endif

#if defined(__VXWORKS_OS__)

typedef struct
{
  char *str;
  int max;
  int len;
} _context;

STATUS _cb_snprintf (char *buffer, int nc, int arg);

STATUS
_cb_snprintf (char *buffer, int nc, int arg)
{
  _context *ctx = (_context *) arg;

  if (ctx->max - ctx->len - nc < 1)     /* retain 1 pos for terminating \0 */
    {
      nc = ctx->max - ctx->len - 1;
    }

  if (nc > 0)
    {
      memcpy (ctx->str + ctx->len, buffer, nc);
      ctx->len += nc;
    }

  ctx->str[ctx->len] = '\0';

  return OK;
}


int
osip_vsnprintf (char *buf, int max, const char *fmt, va_list ap)
{
  _context ctx;

  ctx.str = buf;
  ctx.max = max;
  ctx.len = 0;

  if (fioFormatV (fmt, ap, _cb_snprintf, (int) &ctx) != OK)
    {
      return -1;
    }

  return ctx.len;
}

int
osip_snprintf (char *buf, int max, const char *fmt, ...)
{
  int retval;
  va_list ap;

  va_start (ap, fmt);
  retval = osip_vsnprintf (buf, max, fmt, ap);
  va_end (ap);
  return retval;
}

#endif


#if defined(__PSOS__)

int
osip_snprintf (char *buf, int max, const char *fmt, ...)
{
  static char buffer[1024];
  int retval;
  va_list ap;

  buffer[0] = '\n';
  va_start (ap, fmt);
  vsprintf (&(buffer[strlen (buffer)]), fmt, ap);
  va_end (ap);
  retval = strlen (buffer);
  memmove (buf, buffer, max);
  if (retval > max)
    return -1;
  return retval;
}

#endif

#ifdef DEBUG_MEM

/*
  This is a debug facility for detecting memory leaks.
  I recommend to use external tools such as mpatrol
  when possible. On some fancy platform, you may not
  have any usefull tools: in this case, use this code!
 */

void *
_osip_malloc (size_t size, char *file, unsigned short line)
{
  void *mem;

  mem = osip_malloc_func (size + 20);
  if (mem != NULL)
    {
      char *s;

      memcpy (mem, &line, 2);
      for (s = file + strlen (file); s != file; s--)
        {
          if (*s == '\\' || *s == '/')
            {
              s++;
              break;
            }
        }
      strncpy ((char *) mem + 2, s, 18);
      return (void *) ((char *) mem + 20);
    }
  return NULL;
}

void
_osip_free (void *ptr)
{
  if (ptr != NULL)
    {
      osip_free_func ((char *) ptr - 20);
    }
}

void *
_osip_realloc (void *ptr, size_t size, char *file, unsigned short line)
{
  void *mem;

  mem = osip_realloc_func ((char *) ptr - 20, size + 20);
  if (mem != NULL)
    {
      char *s;

      memcpy (mem, &line, 2);

      for (s = file + strlen (file); s != file; s--)
        {
          if (*s == '\\' || *s == '/')
            {
              s++;
              break;
            }
        }
      strncpy ((char *) mem + 2, s, 18);
      return (char *) mem + 20;
    }
  return NULL;
}

#endif


/* ---For better performance---
   Calculates a hash value for the given string */
unsigned long
osip_hash (const char *str)
{
  unsigned int hash = 5381;
  int c;

  while (c = *str++)
    hash = ((hash << 5) + hash) + c;

  return hash & 0xFFFFFFFFu;
}

/* ---For better performance---
   Appends src-string to dst-string.
   
   This was introduced to replace the 
   inefficient constructions like:
   
   osip_strncpy (tmp, src, strlen(src) );
   tmp = tmp + strlen (src);
   
   This function returns a pointer to the
   end of the destination string
   
   Pre: src is null terminated */
char *
osip_str_append (char *dst, const char *src)
{
  while (*src != '\0')
    {
      *dst = *src;
      src++;
      dst++;
    }
  *dst = '\0';
  return dst;
}

/* ---For better performance---
   Same as above, only this time we know the length */
char *
osip_strn_append (char *dst, const char *src, size_t len)
{
  memmove ((void *) dst, (void *) src, len);
  dst += len;
  *dst = '\0';
  return dst;
}


/* ---For better performance---
   This is to replace this construction:
   osip_strncpy (  dest, source, length);
   osip_clrspace ( dest ); */
#ifndef MINISIZE
char *
osip_clrncpy (char *dst, const char *src, size_t len)
{
  const char *pbeg;
  const char *pend;
  char *p;
  size_t spaceless_length;

  if (src == NULL)
    return NULL;

  /* find the start of relevant text */
  pbeg = src;
  while ((' ' == *pbeg) || ('\r' == *pbeg) || ('\n' == *pbeg) || ('\t' == *pbeg))
    pbeg++;


  /* find the end of relevant text */
  pend = src + len - 1;
  while ((' ' == *pend) || ('\r' == *pend) || ('\n' == *pend) || ('\t' == *pend))
    {
      pend--;
      if (pend < pbeg)
        {
          *dst = '\0';
          return dst;
        }
    }

  /* if pend == pbeg there is only one char to copy */
  spaceless_length = pend - pbeg + 1;   /* excluding any '\0' */
  memmove (dst, pbeg, spaceless_length);
  p = dst + spaceless_length;

  /* terminate the string and pad dest with zeros until len */
  do
    {
      *p = '\0';
      p++;
      spaceless_length++;
    }
  while (spaceless_length < len);

  return dst;
}

#else

char *
osip_clrncpy (char *dst, const char *src, size_t len)
{
   osip_strncpy ( dst, src, len);
   osip_clrspace ( dst );
   return dst;
}

#endif