emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

less: add a bit more robustness in keyboard reading code

Browse Source
This commit is contained in:
Denis Vlasenko 2007-08-03 14:17:21 +00:00
parent 0e2c9fb4e0
commit 46340e398e
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
miscutils/less.c
View File

@ -699,10 +699,11 @@ static int less_getch(void)
char input[16]; char input[16];
unsigned i; unsigned i;
again: again:
memset(input, 0, sizeof(input));
getch_nowait(input, sizeof(input)); getch_nowait(input, sizeof(input));
/* Detect escape sequences (i.e. arrow keys) and handle /* Detect escape sequences (i.e. arrow keys) and handle
* them accordingly */ * them accordingly */
if (input[0] == '\033' && input[1] == '[') { if (input[0] == '\033' && input[1] == '[') {
set_tty_cooked(); set_tty_cooked();
i = input[2] - REAL_KEY_UP; i = input[2] - REAL_KEY_UP;
@ -740,6 +741,7 @@ static char* less_gets(int sz)
* but it is needed. Is it because of stdio? */ * but it is needed. Is it because of stdio? */
tcsetattr(kbd_fd, TCSANOW, &term_less); tcsetattr(kbd_fd, TCSANOW, &term_less);
c = '\0';
read(kbd_fd, &c, 1); read(kbd_fd, &c, 1);
if (c == 0x0d) if (c == 0x0d)
return result; return result;