30 lines
646 B
C
30 lines
646 B
C
/* tty.c - Return tty name Author: Freeman P. Pascal IV */
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/* Minor changes to make tty conform to POSIX1003.2 Draft10
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Thomas Brupbacher (tobr@mw.lpc.ethz.ch) */
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdio.h>
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_PROTOTYPE(int main, (int argc, char **argv));
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int main(argc, argv)
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int argc;
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char *argv[];
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{
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char *tty_name;
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tty_name = ttyname(STDIN_FILENO);
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if ((argc == 2) && (!strcmp(argv[1], "-s")))
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/* Do nothing - shhh! we're in silent mode */ ;
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else
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puts((tty_name != NULL) ? tty_name : "not a tty");
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if (isatty(STDIN_FILENO) == 0)
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return(1);
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else
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return(0);
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}
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