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authorBaptiste Daroussin <bapt@FreeBSD.org>2020-02-07 08:36:41 +0000
committerBaptiste Daroussin <bapt@FreeBSD.org>2020-02-07 08:36:41 +0000
commitf0179cb6083cc92e5947ae56e6a0a5c5328aead0 (patch)
treebcee0ba9c2149b71f0bfc036df1e61e3105bf980 /progs/clear.c
parentcea297eb34d2361e79529034397465068ae34ecd (diff)
downloadsrc-f0179cb6083cc92e5947ae56e6a0a5c5328aead0.tar.gz
src-f0179cb6083cc92e5947ae56e6a0a5c5328aead0.zip
Vendor import ncurses 6.1-20200118vendor/ncurses/6.1-20200118
Notes
Notes: svn path=/vendor/ncurses/dist/; revision=357645 svn path=/vendor/ncurses/6.1-20200118/; revision=357646; tag=vendor/ncurses/6.1-20200118
Diffstat (limited to 'progs/clear.c')
-rw-r--r--progs/clear.c66
1 files changed, 53 insertions, 13 deletions
diff --git a/progs/clear.c b/progs/clear.c
index 4ac503ed3641..2ffdf9530948 100644
--- a/progs/clear.c
+++ b/progs/clear.c
@@ -1,5 +1,5 @@
/****************************************************************************
- * Copyright (c) 1998-2007,2013 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2016,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
@@ -37,14 +37,29 @@
*/
#define USE_LIBTINFO
-#include <progs.priv.h>
+#include <clear_cmd.h>
+#include <tty_settings.h>
-MODULE_ID("$Id: clear.c,v 1.13 2013/06/22 22:20:54 tom Exp $")
+MODULE_ID("$Id: clear.c,v 1.22 2017/10/07 21:48:32 tom Exp $")
-static int
-putch(int c)
+const char *_nc_progname = "clear";
+
+static void
+usage(void)
{
- return putchar(c);
+#define KEEP(s) s "\n"
+ static const char msg[] =
+ {
+ KEEP("")
+ KEEP("Options:")
+ KEEP(" -T TERM use this instead of $TERM")
+ KEEP(" -V print curses-version")
+ KEEP(" -x do not try to clear scrollback")
+ };
+#undef KEEP
+ (void) fprintf(stderr, "Usage: %s [options]\n", _nc_progname);
+ fputs(msg, stderr);
+ ExitProgram(EXIT_FAILURE);
}
int
@@ -52,16 +67,41 @@ main(
int argc GCC_UNUSED,
char *argv[]GCC_UNUSED)
{
- char *E3;
+ TTY tty_settings;
+ int fd;
+ int c;
+ char *term;
+ bool opt_x = FALSE; /* clear scrollback if possible */
+
+ _nc_progname = _nc_rootname(argv[0]);
+ term = getenv("TERM");
+
+ while ((c = getopt(argc, argv, "T:Vx")) != -1) {
+ switch (c) {
+ case 'T':
+ use_env(FALSE);
+ use_tioctl(TRUE);
+ term = optarg;
+ break;
+ case 'V':
+ puts(curses_version());
+ ExitProgram(EXIT_SUCCESS);
+ case 'x': /* do not try to clear scrollback */
+ opt_x = TRUE;
+ break;
+ default:
+ usage();
+ /* NOTREACHED */
+ }
+ }
+ if (optind < argc)
+ usage();
- setupterm((char *) 0, STDOUT_FILENO, (int *) 0);
+ fd = save_tty_settings(&tty_settings, FALSE);
- /* Clear the scrollback buffer if possible. */
- E3 = tigetstr("E3");
- if (E3)
- (void) tputs(E3, lines > 0 ? lines : 1, putch);
+ setupterm(term, fd, (int *) 0);
- ExitProgram((tputs(clear_screen, lines > 0 ? lines : 1, putch) == ERR)
+ ExitProgram((clear_cmd(opt_x) == ERR)
? EXIT_FAILURE
: EXIT_SUCCESS);
}