coreutils
General Software Utilities
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coreutils/src/tty.c (15 lines, 300 B) -rw-r--r-- file download
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// tty.c, version 1.1.0
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// OMKOV coreutils implementation of POSIX tty
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// Copyright (C) 2020, Jakob Wakeling
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// MIT Licence
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#include <unistd.h>
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#include <stdio.h>
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int main(void) {
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	char *tty = ttyname(fileno(stdin));
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	if (tty) { puts(tty); return 0; }
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	else { printf("not a tty\n"); return 1; }
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}
 
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