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| author | Eric Andersen | 2004-03-23 23:15:36 +0000 |
|---|---|---|
| committer | Eric Andersen | 2004-03-23 23:15:36 +0000 |
| commit | 97310d025390e96f34140cff13034fcd2b5da18f (patch) | |
| tree | be9b3406b9b0598d0bc42d6912a7855f7ee11819 /libbb/get_terminal_width_height.c | |
| parent | 6bb80870b839cc812d55b28f886bf3e001e4a00e (diff) | |
| download | busybox-97310d025390e96f34140cff13034fcd2b5da18f.zip busybox-97310d025390e96f34140cff13034fcd2b5da18f.tar.gz | |
Brian Pomerantz writes:
I've noticed a bug in the "autowidth" feature more, and is probably in
others. The call to the function get_terminal_width_height() passes
in a file descriptor but that file descriptor is never used, instead
the ioctl() is called with 0. In more_main() the call to
get_terminal_width_height() passes 0 as the file descriptor instead of
fileno(cin). This isn't a problem when you more a file (e.g. "more
/etc/passwd") but when you pipe a file to it (e.g. "cat /etc/passwd |
more") the size of the terminal cannot be determined because file
descriptor 0 is not a terminal. The fix is simple, I've attached a
patch for more.c and get_terminal_width_height.c.
BAPper
Diffstat (limited to 'libbb/get_terminal_width_height.c')
| -rw-r--r-- | libbb/get_terminal_width_height.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libbb/get_terminal_width_height.c b/libbb/get_terminal_width_height.c index ef90463..7a1af6d 100644 --- a/libbb/get_terminal_width_height.c +++ b/libbb/get_terminal_width_height.c @@ -36,7 +36,7 @@ void get_terminal_width_height(int fd, int *width, int *height) { struct winsize win = { 0, 0, 0, 0 }; #ifdef CONFIG_FEATURE_AUTOWIDTH - if (ioctl(0, TIOCGWINSZ, &win) != 0) { + if (ioctl(fd, TIOCGWINSZ, &win) != 0) { win.ws_row = 24; win.ws_col = 80; } |