C++ (Cpp) __strsep Examples

Example #1

File: mntent_r.c Project: siddhesh/glibc

/* Read one mount table entry from STREAM.  Returns a pointer to storage
   reused on the next call, or null for EOF or error (use feof/ferror to
   check).  */
struct mntent *
__getmntent_r (FILE *stream, struct mntent *mp, char *buffer, int bufsiz)
{
  char *cp;
  char *head;

  flockfile (stream);
  do
    {
      char *end_ptr;

      if (__fgets_unlocked (buffer, bufsiz, stream) == NULL)
	{
	  funlockfile (stream);
	  return NULL;
	}

      end_ptr = strchr (buffer, '\n');
      if (end_ptr != NULL)	/* chop newline */
	{
	  /* Do not walk past the start of buffer if it's all whitespace.  */
	  while (end_ptr != buffer
		 && (end_ptr[-1] == ' ' || end_ptr[-1] == '\t'))
            end_ptr--;
	  *end_ptr = '\0';
	}
      else
	{
	  /* Not the whole line was read.  Do it now but forget it.  */
	  char tmp[1024];
	  while (__fgets_unlocked (tmp, sizeof tmp, stream) != NULL)
	    if (strchr (tmp, '\n') != NULL)
	      break;
	}

      head = buffer + strspn (buffer, " \t");
      /* skip empty lines and comment lines:  */
    }
  while (head[0] == '\0' || head[0] == '#');

  cp = __strsep (&head, " \t");
  mp->mnt_fsname = cp != NULL ? decode_name (cp) : (char *) "";
  if (head)
    head += strspn (head, " \t");
  cp = __strsep (&head, " \t");
  mp->mnt_dir = cp != NULL ? decode_name (cp) : (char *) "";
  if (head)
    head += strspn (head, " \t");
  cp = __strsep (&head, " \t");
  mp->mnt_type = cp != NULL ? decode_name (cp) : (char *) "";
  if (head)
    head += strspn (head, " \t");
  cp = __strsep (&head, " \t");
  mp->mnt_opts = cp != NULL ? decode_name (cp) : (char *) "";
  switch (head ? sscanf (head, " %d %d ", &mp->mnt_freq, &mp->mnt_passno) : 0)
    {
    case 0:
      mp->mnt_freq = 0;
    case 1:
      mp->mnt_passno = 0;
    case 2:
      break;
    }
  funlockfile (stream);

  return mp;
}

Example #2

File: mntent_r.c Project: Trietptm-on-Coding-Algorithms/CodeLibrary

/* Read one mount table entry from STREAM.  Returns a pointer to storage
   reused on the next call, or null for EOF or error (use feof/ferror to
   check).  */
struct mntent *
__getmntent_r (FILE *stream, struct mntent *mp, char *buffer, int bufsiz)
{
  char *cp;
  char *head;

#ifndef __WIN32__
  flockfile (stream);
  do
    {
      char *end_ptr;

      if (fgets_unlocked (buffer, bufsiz, stream) == NULL)
	{
	  funlockfile (stream);
	  return NULL;
	}

      end_ptr = strchr (buffer, '\n');
      if (end_ptr != NULL)	/* chop newline */
	*end_ptr = '\0';
      else
	{
	  /* Not the whole line was read.  Do it now but forget it.  */
	  char tmp[1024];
	  while (fgets_unlocked (tmp, sizeof tmp, stream) != NULL)
	    if (strchr (tmp, '\n') != NULL)
	      break;
	}

      head = buffer + strspn (buffer, " \t");
      /* skip empty lines and comment lines:  */
    }
  while (head[0] == '\0' || head[0] == '#');
#else /* __WIN32__ */
  struct statfsx64 buf;
  if (!strcmp(rootlist, NotSet)) {
//	fprintf(stderr, "rootlist0\n");
	rootlist = getrootdirs(rootlist);
  }
  /* skip the rootdirs that are not mounted */
  while ( (statfsx64 (rootlist, &buf) < 0)) { //(access (rootlist, F_OK) < 0) ||
//    fprintf(stderr, "rootlist < 0: %s\n", rootlist);
	if (rootlist[0] == 0)
    	return NULL;
	else
		rootlist = strchr (rootlist, 0) + 1;	
  }
//  fprintf(stderr, "rootlist: %s\n", rootlist);
//  fprintf(stderr, "buf.f_mntonname: %s\n", buf.f_mntonname);
//  fprintf(stderr, "buf.f_mntfromname: %s\n", buf.f_mntfromname);
//  fprintf(stderr, "buf.f_mntfromname: %s\n", buf.f_mntfromname);
//  fprintf(stderr, "buf.f_fstypename: %s\n", buf.f_fstypename);
  mp->mnt_fsname = buf.f_mntonname;
  mp->mnt_dir = buf.f_mntfromname;
  mp->mnt_type = buf.f_fstypename;
  mp->mnt_opts = MNTOPT_RW;
  __addmntentstr(buffer, mp);
//  fprintf(stderr, "mp->mnt_fsname: %s\n", mp->mnt_fsname);
//  fprintf(stderr, "mp->mnt_dir: %s\n", mp->mnt_dir);
//  fprintf(stderr, "mp->mnt_type: %s\n", mp->mnt_type);
//  fprintf(stderr, "mp->mnt_opts: %s\n", mp->mnt_opts);
  head = buffer + strspn (buffer, " \t");
  rootlist = strchr (rootlist, 0) + 1;
#endif /* __WIN32 */

  cp = __strsep (&head, " \t");
  mp->mnt_fsname = cp != NULL ? decode_name (cp) : (char *) "";
  if (head)
    head += strspn (head, " \t");
  cp = __strsep (&head, " \t");
  mp->mnt_dir = cp != NULL ? decode_name (cp) : (char *) "";
  if (head)
    head += strspn (head, " \t");
  cp = __strsep (&head, " \t");
  mp->mnt_type = cp != NULL ? decode_name (cp) : (char *) "";
  if (head)
    head += strspn (head, " \t");
  cp = __strsep (&head, " \t");
  mp->mnt_opts = cp != NULL ? decode_name (cp) : (char *) "";
  switch (head ? sscanf (head, " %d %d ", &mp->mnt_freq, &mp->mnt_passno) : 0)
    {
    case 0:
      mp->mnt_freq = 0;
    case 1:
      mp->mnt_passno = 0;
    case 2:
      break;
    }
  funlockfile (stream);
 
  return mp;
}