xembed.c - tabbed - tab interface for application supporting Xembed
 (HTM) git clone git://git.suckless.org/tabbed
 (DIR) Log
 (DIR) Files
 (DIR) Refs
 (DIR) README
 (DIR) LICENSE
       ---
       xembed.c (694B)
       ---
            1 /*
            2  * See LICENSE file for copyright and license details.
            3  */
            4 
            5 #include <fcntl.h>
            6 #include <stdio.h>
            7 #include <stdlib.h>
            8 #include <unistd.h>
            9 
           10 int
           11 main(int argc, char *argv[])
           12 {
           13         char *xembed;
           14         int tty;
           15         pid_t pgrp, tcpgrp;
           16 
           17         if (argc < 3) {
           18                 fprintf(stderr, "usage: %s flag cmd ...\n", argv[0]);
           19                 return 2;
           20         }
           21 
           22         if (!(xembed = getenv("XEMBED")))
           23                 goto noembed;
           24 
           25         if ((tty = open("/dev/tty", O_RDONLY)) < 0)
           26                 goto noembed;
           27 
           28         pgrp = getpgrp();
           29         tcpgrp = tcgetpgrp(tty);
           30 
           31         close(tty);
           32 
           33         if (pgrp == tcpgrp) { /* in foreground of tty */
           34                 argv[0] = argv[2];
           35                 argv[2] = xembed;
           36         } else {
           37 noembed:
           38                 argv += 2;
           39         }
           40 
           41         execvp(argv[0], argv);
           42 
           43         perror(argv[0]); /* failed to execute */
           44         return 1;
           45 }