32 lines
690 B
C
Executable file
32 lines
690 B
C
Executable file
/* ctermid(3)
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*
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* Author: Terrence Holm Aug. 1988
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*
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*
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* Ctermid(3) returns a pointer to a string naming the controlling
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* terminal. If <name_space> is NULL then local PRIVATE storage
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* is used, otherwise <name_space> must point to storage of at
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* least L_ctermid characters.
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*
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* Returns a pointer to "/dev/tty".
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*/
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#include <lib.h>
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#include <string.h>
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#include <stdio.h>
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_PROTOTYPE( char *ctermid, (char *name_space));
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#ifndef L_ctermid
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#define L_ctermid 9
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#endif
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char *ctermid(name_space)
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char *name_space;
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{
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PRIVATE char termid[L_ctermid];
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if (name_space == (char *)NULL) name_space = termid;
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strcpy(name_space, "/dev/tty");
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return(name_space);
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}
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