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d9a17c07 | 1 | /* Parsing of Suboptions Example |
dff8da6b | 2 | Copyright (C) 1991-2024 Free Software Foundation, Inc. |
d9a17c07 RM |
3 | |
4 | This program is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU General Public License | |
6 | as published by the Free Software Foundation; either version 2 | |
7 | of the License, or (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
5a82c748 | 15 | along with this program; if not, see <https://www.gnu.org/licenses/>. |
d9a17c07 RM |
16 | */ |
17 | ||
2064087b RM |
18 | #include <stdio.h> |
19 | #include <stdlib.h> | |
bcad2c29 | 20 | #include <unistd.h> |
2064087b RM |
21 | |
22 | int do_all; | |
23 | const char *type; | |
24 | int read_size; | |
25 | int write_size; | |
26 | int read_only; | |
27 | ||
28 | enum | |
29 | { | |
30 | RO_OPTION = 0, | |
31 | RW_OPTION, | |
32 | READ_SIZE_OPTION, | |
b1184fcd UD |
33 | WRITE_SIZE_OPTION, |
34 | THE_END | |
2064087b RM |
35 | }; |
36 | ||
37 | const char *mount_opts[] = | |
38 | { | |
39 | [RO_OPTION] = "ro", | |
40 | [RW_OPTION] = "rw", | |
41 | [READ_SIZE_OPTION] = "rsize", | |
b1184fcd UD |
42 | [WRITE_SIZE_OPTION] = "wsize", |
43 | [THE_END] = NULL | |
2064087b RM |
44 | }; |
45 | ||
46 | int | |
09c093b5 | 47 | main (int argc, char **argv) |
2064087b RM |
48 | { |
49 | char *subopts, *value; | |
50 | int opt; | |
51 | ||
1ef32c3d | 52 | while ((opt = getopt (argc, argv, "at:o:")) != -1) |
2064087b RM |
53 | switch (opt) |
54 | { | |
55 | case 'a': | |
56 | do_all = 1; | |
57 | break; | |
58 | case 't': | |
59 | type = optarg; | |
60 | break; | |
61 | case 'o': | |
62 | subopts = optarg; | |
63 | while (*subopts != '\0') | |
64 | switch (getsubopt (&subopts, mount_opts, &value)) | |
65 | { | |
66 | case RO_OPTION: | |
67 | read_only = 1; | |
68 | break; | |
69 | case RW_OPTION: | |
70 | read_only = 0; | |
71 | break; | |
72 | case READ_SIZE_OPTION: | |
73 | if (value == NULL) | |
74 | abort (); | |
75 | read_size = atoi (value); | |
76 | break; | |
77 | case WRITE_SIZE_OPTION: | |
78 | if (value == NULL) | |
79 | abort (); | |
80 | write_size = atoi (value); | |
81 | break; | |
82 | default: | |
83 | /* Unknown suboption. */ | |
84 | printf ("Unknown suboption `%s'\n", value); | |
85 | break; | |
86 | } | |
87 | break; | |
88 | default: | |
89 | abort (); | |
90 | } | |
91 | ||
92 | /* Do the real work. */ | |
93 | ||
94 | return 0; | |
95 | } |