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45 lines
694 B
45 lines
694 B
/*
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* See LICENSE file for copyright and license details.
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*/
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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int
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main(int argc, char *argv[])
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{
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char *xembed;
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int tty;
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pid_t pgrp, tcpgrp;
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if (argc < 3) {
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fprintf(stderr, "usage: %s flag cmd ...\n", argv[0]);
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return 2;
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}
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if (!(xembed = getenv("XEMBED")))
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goto noembed;
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if ((tty = open("/dev/tty", O_RDONLY)) < 0)
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goto noembed;
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pgrp = getpgrp();
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tcpgrp = tcgetpgrp(tty);
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close(tty);
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if (pgrp == tcpgrp) { /* in foreground of tty */
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argv[0] = argv[2];
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argv[2] = xembed;
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} else {
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noembed:
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argv += 2;
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}
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execvp(argv[0], argv);
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perror(argv[0]); /* failed to execute */
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return 1;
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}
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