diff options
Diffstat (limited to 'release/src/router/busybox/miscutils/ttysize.c')
-rw-r--r-- | release/src/router/busybox/miscutils/ttysize.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/release/src/router/busybox/miscutils/ttysize.c b/release/src/router/busybox/miscutils/ttysize.c new file mode 100644 index 00000000..05455543 --- /dev/null +++ b/release/src/router/busybox/miscutils/ttysize.c @@ -0,0 +1,44 @@ +/* vi: set sw=4 ts=4: */ +/* + * Replacement for "stty size", which is awkward for shell script use. + * - Allows to request width, height, or both, in any order. + * - Does not complain on error, but returns width 80, height 24. + * - Size: less than 200 bytes + * + * Copyright (C) 2007 by Denys Vlasenko <vda.linux@googlemail.com> + * + * Licensed under the GPL v2, see the file LICENSE in this tarball. + */ +#include "libbb.h" + +int ttysize_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int ttysize_main(int argc, char **argv) +{ + unsigned w, h; + struct winsize wsz; + + w = 80; + h = 24; + if (!ioctl(0, TIOCGWINSZ, &wsz)) { + w = wsz.ws_col; + h = wsz.ws_row; + } + + if (argc == 1) { + printf("%u %u", w, h); + } else { + const char *fmt, *arg; + + fmt = "%u %u" + 3; /* "%u" */ + while ((arg = *++argv) != NULL) { + char c = arg[0]; + if (c == 'w') + printf(fmt, w); + if (c == 'h') + printf(fmt, h); + fmt = "%u %u" + 2; /* " %u" */ + } + } + bb_putchar('\n'); + return 0; +} |