#include <libutil.h>
struct keycode {
- int code;
- int seqlen;
- const unsigned char *seq;
+ int code;
+ int seqlen;
+ const unsigned char *seq;
};
#define MAXLEN 8
#define CODE(x,y) { x, (sizeof y)-1, y }
static const struct keycode keycodes[] = {
- /* First, the BIOS combined codes */
- CODE(KEY_F1, "\0\x3B"),
- CODE(KEY_F2, "\0\x3C"),
- CODE(KEY_F3, "\0\x3D"),
- CODE(KEY_F4, "\0\x3E"),
- CODE(KEY_F5, "\0\x3F"),
- CODE(KEY_F6, "\0\x40"),
- CODE(KEY_F7, "\0\x41"),
- CODE(KEY_F8, "\0\x42"),
- CODE(KEY_F9, "\0\x43"),
- CODE(KEY_F10, "\0\x44"),
- CODE(KEY_F11, "\0\x85"),
- CODE(KEY_F12, "\0\x86"),
-
- CODE(KEY_UP, "\0\x48"),
- CODE(KEY_DOWN, "\0\x50"),
- CODE(KEY_LEFT, "\0\x4B"),
- CODE(KEY_RIGHT,"\0\x4D"),
- CODE(KEY_PGUP, "\0\x49"),
- CODE(KEY_PGDN, "\0\x51"),
- CODE(KEY_HOME, "\0\x47"),
- CODE(KEY_END, "\0\x4F"),
- CODE(KEY_INSERT, "\0\x52"),
- CODE(KEY_DELETE, "\0\x53"),
-
- /* Now, VT/xterm/Linux codes */
- CODE(KEY_F1, "\033[[A"),
- CODE(KEY_F1, "\033OP"),
- CODE(KEY_F2, "\033[[B"),
- CODE(KEY_F2, "\033OQ"),
- CODE(KEY_F3, "\033[[C"),
- CODE(KEY_F3, "\033OR"),
- CODE(KEY_F4, "\033[[D"),
- CODE(KEY_F4, "\033OS"),
- CODE(KEY_F5, "\033[[E"),
- CODE(KEY_F5, "\033[15~"),
- CODE(KEY_F6, "\033[17~"),
- CODE(KEY_F7, "\033[18~"),
- CODE(KEY_F8, "\033[19~"),
- CODE(KEY_F9, "\033[20~"),
- CODE(KEY_F10, "\033[21~"),
- CODE(KEY_F11, "\033[23~"),
- CODE(KEY_F12, "\033[24~"),
-
- CODE(KEY_UP, "\033[A"),
- CODE(KEY_DOWN, "\033[B"),
- CODE(KEY_LEFT, "\033[D"),
- CODE(KEY_RIGHT,"\033[C"),
- CODE(KEY_PGUP, "\033[5~"),
- CODE(KEY_PGUP, "\033[V"),
- CODE(KEY_PGDN, "\033[6~"),
- CODE(KEY_PGDN, "\033[U"),
- CODE(KEY_HOME, "\033[1~"),
- CODE(KEY_HOME, "\033[H"),
- CODE(KEY_END, "\033[4~"),
- CODE(KEY_END, "\033[F"),
- CODE(KEY_END, "\033OF"),
- CODE(KEY_INSERT, "\033[2~"),
- CODE(KEY_INSERT, "\033[@"),
- CODE(KEY_DELETE, "\033[3~"),
+ /* First, the BIOS combined codes */
+ CODE(KEY_F1, "\0\x3B"),
+ CODE(KEY_F2, "\0\x3C"),
+ CODE(KEY_F3, "\0\x3D"),
+ CODE(KEY_F4, "\0\x3E"),
+ CODE(KEY_F5, "\0\x3F"),
+ CODE(KEY_F6, "\0\x40"),
+ CODE(KEY_F7, "\0\x41"),
+ CODE(KEY_F8, "\0\x42"),
+ CODE(KEY_F9, "\0\x43"),
+ CODE(KEY_F10, "\0\x44"),
+ CODE(KEY_F11, "\0\x85"),
+ CODE(KEY_F12, "\0\x86"),
+
+ CODE(KEY_UP, "\0\x48"),
+ CODE(KEY_DOWN, "\0\x50"),
+ CODE(KEY_LEFT, "\0\x4B"),
+ CODE(KEY_RIGHT, "\0\x4D"),
+ CODE(KEY_PGUP, "\0\x49"),
+ CODE(KEY_PGDN, "\0\x51"),
+ CODE(KEY_HOME, "\0\x47"),
+ CODE(KEY_END, "\0\x4F"),
+ CODE(KEY_INSERT, "\0\x52"),
+ CODE(KEY_DELETE, "\0\x53"),
+
+ /* Now, VT/xterm/Linux codes */
+ CODE(KEY_F1, "\033[[A"),
+ CODE(KEY_F1, "\033OP"),
+ CODE(KEY_F2, "\033[[B"),
+ CODE(KEY_F2, "\033OQ"),
+ CODE(KEY_F3, "\033[[C"),
+ CODE(KEY_F3, "\033OR"),
+ CODE(KEY_F4, "\033[[D"),
+ CODE(KEY_F4, "\033OS"),
+ CODE(KEY_F5, "\033[[E"),
+ CODE(KEY_F5, "\033[15~"),
+ CODE(KEY_F6, "\033[17~"),
+ CODE(KEY_F7, "\033[18~"),
+ CODE(KEY_F8, "\033[19~"),
+ CODE(KEY_F9, "\033[20~"),
+ CODE(KEY_F10, "\033[21~"),
+ CODE(KEY_F11, "\033[23~"),
+ CODE(KEY_F12, "\033[24~"),
+
+ CODE(KEY_UP, "\033[A"),
+ CODE(KEY_DOWN, "\033[B"),
+ CODE(KEY_LEFT, "\033[D"),
+ CODE(KEY_RIGHT, "\033[C"),
+ CODE(KEY_PGUP, "\033[5~"),
+ CODE(KEY_PGUP, "\033[V"),
+ CODE(KEY_PGDN, "\033[6~"),
+ CODE(KEY_PGDN, "\033[U"),
+ CODE(KEY_HOME, "\033[1~"),
+ CODE(KEY_HOME, "\033[H"),
+ CODE(KEY_END, "\033[4~"),
+ CODE(KEY_END, "\033[F"),
+ CODE(KEY_END, "\033OF"),
+ CODE(KEY_INSERT, "\033[2~"),
+ CODE(KEY_INSERT, "\033[@"),
+ CODE(KEY_DELETE, "\033[3~"),
};
+
#define NCODES ((int)(sizeof keycodes/sizeof(struct keycode)))
#define KEY_TIMEOUT ((CLK_TCK+9)/10)
-int get_key(FILE *f, clock_t timeout)
+int get_key(FILE * f, clock_t timeout)
{
- unsigned char buffer[MAXLEN];
- int nc, i, rv;
- const struct keycode *kc;
- int another;
- unsigned char ch;
- clock_t start;
-
- /* We typically start in the middle of a clock tick */
- if ( timeout )
- timeout++;
-
- nc = 0;
- start = times(NULL);
- do {
- rv = read(fileno(f), &ch, 1);
- if ( rv == 0 || (rv == -1 && errno == EAGAIN) ) {
- clock_t lateness = times(NULL)-start;
- if ( nc && lateness > 1+KEY_TIMEOUT ) {
- if ( nc == 1 )
- return buffer[0]; /* timeout in sequence */
- else if ( timeout && lateness > timeout )
- return KEY_NONE;
- } else if ( !nc && timeout && lateness > timeout )
- return KEY_NONE; /* timeout before sequence */
-
- do_idle();
-
- another = 1;
- continue;
- }
-
+ unsigned char buffer[MAXLEN];
+ int nc, i, rv;
+ const struct keycode *kc;
+ int another;
+ unsigned char ch;
+ clock_t start;
+
+ /* We typically start in the middle of a clock tick */
+ if (timeout)
+ timeout++;
+
+ nc = 0;
start = times(NULL);
-
- buffer[nc++] = ch;
-
- another = 0;
- for ( i = 0, kc = keycodes ; i < NCODES ; i++, kc++ ) {
- if ( nc == kc->seqlen && !memcmp(buffer, kc->seq, nc) )
- return kc->code;
- else if ( nc < kc->seqlen && !memcmp(buffer, kc->seq, nc) ) {
- another = 1;
- break;
- }
- }
- } while ( another );
-
- /* We got an unrecognized sequence; return the first character */
- /* We really should remember this and return subsequent characters later */
- return buffer[0];
+ do {
+ rv = read(fileno(f), &ch, 1);
+ if (rv == 0 || (rv == -1 && errno == EAGAIN)) {
+ clock_t lateness = times(NULL) - start;
+ if (nc && lateness > 1 + KEY_TIMEOUT) {
+ if (nc == 1)
+ return buffer[0]; /* timeout in sequence */
+ else if (timeout && lateness > timeout)
+ return KEY_NONE;
+ } else if (!nc && timeout && lateness > timeout)
+ return KEY_NONE; /* timeout before sequence */
+
+ do_idle();
+
+ another = 1;
+ continue;
+ }
+
+ start = times(NULL);
+
+ buffer[nc++] = ch;
+
+ another = 0;
+ for (i = 0, kc = keycodes; i < NCODES; i++, kc++) {
+ if (nc == kc->seqlen && !memcmp(buffer, kc->seq, nc))
+ return kc->code;
+ else if (nc < kc->seqlen && !memcmp(buffer, kc->seq, nc)) {
+ another = 1;
+ break;
+ }
+ }
+ } while (another);
+
+ /* We got an unrecognized sequence; return the first character */
+ /* We really should remember this and return subsequent characters later */
+ return buffer[0];
}
projects / profile / ivi / syslinux.git / commitdiff