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      1 /* $NetBSD: signalname.c,v 1.1 2017/05/09 11:14:16 kre Exp $ */
      2 
      3 /*
      4  * Software available to all and sundry without limitations
      5  * but without warranty of fitness for any purpose whatever.
      6  *
      7  * Licensed for any use, including redistribution in source
      8  * and binary forms, with or without modifications, subject
      9  * the following agreement:
     10  *
     11  * Licensee agrees to indemnify licensor, and distributor, for
     12  * the full amount of any any claim made by the licensee against
     13  * the licensor or distributor, for any action that results from
     14  * any use or redistribution of this software, plus any costs
     15  * incurred by licensor or distributor resulting from that claim.
     16  *
     17  * This licence must be retained with the software.
     18  */
     19 
     20 #include <sys/types.h>
     21 
     22 #include <signal.h>
     23 #include <string.h>
     24 
     25 /*
     26  * signalname()
     27  *
     28  *	Converts the signal number "sig" to its
     29  *	signal name (without the "SIG" prefix).
     30  *
     31  * Returns:
     32  *	NULL on error (invalid signal number)
     33  *	otherwise the (abbreviated) signal name (no "SIG").
     34  */
     35 
     36 const char *
     37 signalname(int sig)
     38 {
     39 
     40 	if (sig <= 0 || sig >= NSIG)
     41 		return NULL;
     42 
     43 	return sys_signame[sig];
     44 }
     45