mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 21:40:12 +00:00
96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/* Parsing of Suboptions Example
|
|
Copyright (C) 1991-2015 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
int do_all;
|
|
const char *type;
|
|
int read_size;
|
|
int write_size;
|
|
int read_only;
|
|
|
|
enum
|
|
{
|
|
RO_OPTION = 0,
|
|
RW_OPTION,
|
|
READ_SIZE_OPTION,
|
|
WRITE_SIZE_OPTION,
|
|
THE_END
|
|
};
|
|
|
|
const char *mount_opts[] =
|
|
{
|
|
[RO_OPTION] = "ro",
|
|
[RW_OPTION] = "rw",
|
|
[READ_SIZE_OPTION] = "rsize",
|
|
[WRITE_SIZE_OPTION] = "wsize",
|
|
[THE_END] = NULL
|
|
};
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
char *subopts, *value;
|
|
int opt;
|
|
|
|
while ((opt = getopt (argc, argv, "at:o:")) != -1)
|
|
switch (opt)
|
|
{
|
|
case 'a':
|
|
do_all = 1;
|
|
break;
|
|
case 't':
|
|
type = optarg;
|
|
break;
|
|
case 'o':
|
|
subopts = optarg;
|
|
while (*subopts != '\0')
|
|
switch (getsubopt (&subopts, mount_opts, &value))
|
|
{
|
|
case RO_OPTION:
|
|
read_only = 1;
|
|
break;
|
|
case RW_OPTION:
|
|
read_only = 0;
|
|
break;
|
|
case READ_SIZE_OPTION:
|
|
if (value == NULL)
|
|
abort ();
|
|
read_size = atoi (value);
|
|
break;
|
|
case WRITE_SIZE_OPTION:
|
|
if (value == NULL)
|
|
abort ();
|
|
write_size = atoi (value);
|
|
break;
|
|
default:
|
|
/* Unknown suboption. */
|
|
printf ("Unknown suboption `%s'\n", value);
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
abort ();
|
|
}
|
|
|
|
/* Do the real work. */
|
|
|
|
return 0;
|
|
}
|