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PR/45739: Moritz Wilhelmy: top(1) segfaults on WINCH with unknown terminal

This commit is contained in:
christos 2011-12-24 22:29:48 +00:00
parent 47b488844e
commit cc349219b4
1 changed files with 13 additions and 4 deletions
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17
external/bsd/top/dist/screen.c vendored
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@ -167,7 +167,7 @@ void
screen_getsize()
{
char *go;
#ifdef TIOCGWINSZ
struct winsize ws;
@ -204,7 +204,10 @@ screen_getsize()
#endif /* TIOCGSIZE */
#endif /* TIOCGWINSZ */
(void) strcpy(lower_left, tgoto(tc_cursor_motion, 0, screen_length - 1));
if ((go = tgoto(tc_cursor_motion, 0, screen_length - 1)) != NULL)
(void) strcpy(lower_left, go);
else
lower_left[0] = '\0';
}
int
@ -214,6 +217,7 @@ screen_readtermcap(int interactive)
char *bufptr;
char *PCptr;
char *term_name;
char *go;
int status;
/* set defaults in case we aren't smart */
@ -314,7 +318,10 @@ screen_readtermcap(int interactive)
PC = (PCptr = tgetstr("pc", &bufptr)) ? *PCptr : 0;
/* set convenience strings */
(void) strcpy(home, tgoto(tc_cursor_motion, 0, 0));
if ((go = tgoto(tc_cursor_motion, 0, 0)) != NULL)
(void) strcpy(home, go);
else
home[0] = '\0';
/* (lower_left is set in screen_getsize) */
/* get the actual screen size with an ioctl, if needed */
@ -502,7 +509,9 @@ void
screen_move(int x, int y)
{
tputs(tgoto(tc_cursor_motion, x, y), 1, putstdout);
char *go = tgoto(tc_cursor_motion, x, y);
if (go)
tputs(go, 1, putstdout);
}
void