]>
git.gir.st - sendHID.git/blob - main.c
2 description: sends a sequence of keystrokes to the hid device.
4 device file (e.g. /dev/hidg0)
5 keyboard layout (1=en_us, 2=de_at, 3=de_at-nodeadkeys)
6 unicode method: 1=gtk_holddown, 2=gtk_spaceend, 3=windows
7 the string to send (as whitespace is important, the `echo` way of concatenating all parameters is not supported. if your string has white space in it and you are in an interactive session, quote your string.)
12 #include "scancodes.h"
14 enum params
= { //argv-indices:
15 P_EXE
, //executable name
18 P_UNI
, //unicode method
19 P_STR
, //string to type
20 NUM_P
//number of parameters
22 enum kbdl
= { //keyboard layouts:
26 de_ND
//de_AT-nodeadkeys
28 enum uni_m
= { //unicode methods:
29 SKIP
, //ignore any keys not on the layout
30 GTK_HOLD
, //hold ctrl and shift while entering hex values
31 GTK_SPACE
, //end hex sequence with spacebar
32 WINDOWS
//use alt+numpad
35 ERR_SUCCESS
, //no error
36 ERR_ARGCOUNT
, //wrong number of arguments
37 ERR_SYMBOL
, //symbol not in look up table
38 ERR_LAYOUT
, //parameter P_LAY does not contain a correct keyboard layout
39 ERR_LAZY
//i haven't done this
42 void send_key ( FILE * hid_dev
, unsigned short key
, unsigned short mod
);
43 struct layout
* tolay ( struct keysym
* s
, enum kbdl layout
);
44 enum errors
send_unicode ( FILE * hid_dev
, unsigned int unicode
, enum uni_m method
, enum kbdl layout
);
46 int main ( int argc
, char ** argv
) {
48 fprintf ( stderr
, "Usage: %s <device file> <layout> <unicode> \" <string> \"\n " , argv
[ P_EXE
]);
51 FILE * hid_dev
= fopen ( "/dev/hidg0" , "w" );
52 for ( int i
= 0 ; i
< strlen ( argv
[ P_STR
]); i
++) {
54 char tmp
[ UTF8_MAX_LENGTH
] = { argv
[ P_STR
][ i
], argv
[ P_STR
][ i
+ 1 ], argv
[ P_STR
][ i
+ 2 ], '\0' };
55 //TODO: replace by something less stupid
56 if ( argv
[ P_STR
][ i
] < 128 ) { // not multi byte
58 } else { // is multi byte
59 if ( argv
[ P_STR
][ i
] < 0xe0 ) {
60 i
++; //skip next thing
63 i
+= 2 ; //WARN: fails on utf8 > 3 byte
67 struct keysym
* s
= toscan ( tmp
);
69 fprintf ( stderr
, "Key Symbol not found. \n " );
72 struct layout
* l
= tolay ( s
, atoi ( argv
[ P_LAY
]));
74 fprintf ( stderr
, "Unrecognised keyboard layout. \n " );
78 send_key ( hid_dev
, l
-> key
, l
-> mod
);
79 send_key ( hid_dev
, '\0' , '\0' ); //release all keys
80 if ( l
-> is_dead
&& ! ignore_deadkey
) {
81 //dead keys need to be pressed twice to show up
82 send_key ( hid_dev
, l
-> key
, l
-> mod
);
83 send_key ( hid_dev
, '\0' , '\0' ); //release all keys
86 //key does not exist in this layout, use unicode method
87 fprintf ( stderr
, "Warning: Key not in this layout! \n " );
88 send_unicode ( s
-> unicode
, atoi ( argv
[ P_UNI
]);
96 struct layout
* get_layout ( struct keysym
* s
, enum kbdl layout
) {
99 fprintf ( stderr
, "This keyboard layout is reserved. \n " );
108 fprintf ( stderr
, "Unrecognised keyboard layout. \n " );
112 void send_key ( FILE * hid_dev
, unsigned short key
, unsigned short mod
) {
113 fprintf ( hid_dev
, "%c%c%c%c%c%c%c%c" , mod
, '\0' , key
, '\0' , '\0' , '\0' , '\0' , '\0' );
116 struct layout
* tolay ( struct keysym
* s
, enum kbdl layout
) {
118 case en_US
: return &( s
-> en_us
);
119 case de_AT
: return &( s
-> de_at
);
120 case de_ND
: return &( s
-> de_nd
);
121 default : return NULL
;
125 enum errors
send_unicode ( FILE * hid_dev
, unsigned int unicode
, enum uni_m method
, enum kbdl layout
) {
130 if ( unicode
== 0x00 ) {
131 printf ( "Symbol not in lookup table! \n " );
139 fprintf ( "Hold-down X11 not implemented! \n " );
142 sprintf ( string
, "%x" , unicode
);
144 l
= tolay ( s
, layout
);
145 send_key ( hid_dev
, l
-> key
, MOD_LCTRL
| MOD_LSHIFT
);
146 for ( int i
= 0 ; i
< strlen ( string
); i
++) {
148 l
= tolay ( s
, layout
);
149 send_key ( hid_dev
, l
-> key
, MOD_LCTRL
| MOD_LSHIFT
);
151 send_key ( hid_dev
, '\0' , '\0' );
154 fprintf ( "windows method not implemented! \n " );
157 fprintf ( "unknown unicode method! \n " );
158 return ERR_LAYOUT
; //TODO: better error code