3 * \author written by Emmanuel Roullit emmanuel.roullit@gmail.com (c) 2012
7 /* __LICENSE_HEADER_BEGIN__ */
10 * Copyright (C) 2012 Emmanuel Roullit <emmanuel.roullit@gmail.com>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or (at
15 * your option) any later version.
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
19 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
28 /* __LICENSE_HEADER_END__ */
34 #include <libdabba/macros.h>
36 static const char dabba_usage_string
[] = "dabba [--help] <command> [<args>]\n";
37 static const char dabba_more_info_string
[] =
38 "See 'dabba help <command>' for more info on a specific command.";
45 void show_usage(const struct option
const *opt
)
49 printf("%s", dabba_usage_string
);
52 while (opt
->name
!= NULL
) {
53 printf(" --%s", opt
->name
);
54 if (opt
->has_arg
== required_argument
)
56 else if (opt
->has_arg
== optional_argument
)
65 static inline void mput_char(char c
, uint32_t num
)
71 void help_unknown_cmd(const char const *cmd
)
74 printf("'%s' is not a dabba command. See 'dabba --help'.\n", cmd
);
77 static void list_common_cmds_help(void)
79 size_t i
, longest
= 0;
81 static struct cmdname_help common_cmds
[] = {
82 {"interface", "perform an interface related command"},
83 {"capture", "capture live traffic from an interface"}
86 for (i
= 0; i
< ARRAY_SIZE(common_cmds
); i
++) {
87 if (longest
< strlen(common_cmds
[i
].name
))
88 longest
= strlen(common_cmds
[i
].name
);
91 printf("The most commonly used dabba commands are:\n");
92 for (i
= 0; i
< ARRAY_SIZE(common_cmds
); i
++) {
93 printf(" %s ", common_cmds
[i
].name
);
94 mput_char(' ', longest
- strlen(common_cmds
[i
].name
));
95 printf("%s\n", common_cmds
[i
].help
);
101 * \param[in] argc Argument counter
102 * \param[in] argv Argument vector
103 * \return Always returns 0.
105 * This function prints the basic dabba usage help message.
106 * Furthermore, it lists all available command.
109 int cmd_help(int argc
, const char **argv
)
111 /* cast here to avoid argc and argv unused GCC warning */
115 printf("usage: %s\n\n", dabba_usage_string
);
116 list_common_cmds_help();
117 printf("\n%s\n", dabba_more_info_string
);