1 /* Options common to ar and ranlib.
2 Copyright (C) 2012 Red Hat, Inc.
3 This file is part of elfutils.
4
5 This file is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
9
10 elfutils is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18 #ifdef HAVE_CONFIG_H
19 # include <config.h>
20 #endif
21
22 #include <argp.h>
23
24 #include "arlib.h"
25
26 bool arlib_deterministic_output = DEFAULT_AR_DETERMINISTIC;
27
28 static const struct argp_option options[] =
29 {
30 { NULL, 'D', NULL, 0,
31 N_("Use zero for uid, gid, and date in archive members."), 0 },
32 { NULL, 'U', NULL, 0,
33 N_("Use actual uid, gid, and date in archive members."), 0 },
34
35 { NULL, 0, NULL, 0, NULL, 0 }
36 };
37
38 static error_t
parse_opt(int key,char * arg,struct argp_state * state)39 parse_opt (int key, char *arg __attribute__ ((unused)),
40 struct argp_state *state __attribute__ ((unused)))
41 {
42 switch (key)
43 {
44 case 'D':
45 arlib_deterministic_output = true;
46 break;
47
48 case 'U':
49 arlib_deterministic_output = false;
50 break;
51
52 default:
53 return ARGP_ERR_UNKNOWN;
54 }
55 return 0;
56 }
57
58 static char *
text_for_default(const char * text)59 text_for_default (const char *text)
60 {
61 char *new_text;
62 if (unlikely (asprintf (&new_text, _("%s (default)"), text) < 0))
63 return (char *) text;
64 return new_text;
65 }
66
67 static char *
help_filter(int key,const char * text,void * input)68 help_filter (int key, const char *text, void *input __attribute__ ((unused)))
69 {
70 switch (key)
71 {
72 case 'D':
73 if (DEFAULT_AR_DETERMINISTIC)
74 return text_for_default (text);
75 break;
76 case 'U':
77 if (! DEFAULT_AR_DETERMINISTIC)
78 return text_for_default (text);
79 break;
80 }
81
82 return (char *) text;
83 }
84
85 static const struct argp argp =
86 {
87 options, parse_opt, NULL, NULL, NULL, help_filter, NULL
88 };
89
90 const struct argp_child arlib_argp_children[] =
91 {
92 { &argp, 0, "", 2 },
93 { NULL, 0, NULL, 0 }
94 };
95