From d60069a3e7a9e382f3221f8e405ad8c05abeea20 Mon Sep 17 00:00:00 2001 From: Connor Lane Smith Date: Wed, 6 May 2015 17:46:10 +0100 Subject: add xembed wrapper utility xembed will cause a command to attempt to XEmbed into the window given by the environment variable XEMBED, so long as it is in the foreground of its controlling terminal. This causes a process to effectively take the place of the terminal window, unless it is backgrounded. Signed-off-by: Christoph Lohmann <20h@r-36.net> --- xembed.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 xembed.c (limited to 'xembed.c') diff --git a/xembed.c b/xembed.c new file mode 100644 index 0000000..0b36603 --- /dev/null +++ b/xembed.c @@ -0,0 +1,46 @@ +/* + * See LICENSE file for copyright and license details. + */ + +#include +#include +#include +#include + +int +main(int argc, char **argv) +{ + char *xembed; + int tty; + pid_t pgrp, tcpgrp; + + if(argc < 3) { + fprintf(stderr, "usage: %s flag cmd ...\n", argv[0]); + return 2; + } + + if(!(xembed = getenv("XEMBED"))) + goto noembed; + + if((tty = open("/dev/tty", O_RDONLY)) < 0) + goto noembed; + + pgrp = getpgrp(); + tcpgrp = tcgetpgrp(tty); + + close(tty); + + if(pgrp == tcpgrp) { /* in foreground of tty */ + argv[0] = argv[2]; + argv[2] = xembed; + } + else { +noembed: + argv += 2; + } + + execvp(argv[0], argv); + + perror(argv[0]); /* failed to execute */ + return 1; +} -- cgit v1.2.3