lib/libc/string/__strsignal.c

   1 /*      $NetBSD: __strsignal.c,v 1.25 2012/03/20 17:44:18 matt Exp $    */
   2
   3 /*
   4  * Copyright (c) 1988 Regents of the University of California.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #if defined(LIBC_SCCS) && !defined(lint)
  34 #if 0
  35 static char *sccsid = "@(#)strerror.c   5.6 (Berkeley) 5/4/91";
  36 #else
  37 __RCSID("$NetBSD: __strsignal.c,v 1.25 2012/03/20 17:44:18 matt Exp $");
  38 #endif
  39 #endif /* LIBC_SCCS and not lint */
  40
  41 #include "namespace.h"
  42 #ifdef NLS
  43 #include <limits.h>
  44 #include <nl_types.h>
  45 #endif
  46
  47 #include <assert.h>
  48 #include <stdio.h>
  49 #include <string.h>
  50 #include "extern.h"
  51 #include <signal.h>
  52 #ifndef SIGRTMIN        /* XXX: Until we remove the #ifdef _KERNEL */
  53 #define SIGRTMIN        33
  54 #define SIGRTMAX        63
  55 #endif
  56
  57 /* ARGSUSED */
  58 const char *
  59 __strsignal(int num, char *buf, size_t buflen)
  60 {
  61 #define UPREFIX "Unknown signal: %u"
  62 #define RPREFIX "Real time signal %u"
  63         unsigned int signum;
  64
  65 #ifdef NLS
  66         nl_catd catd ;
  67         catd = catopen("libc", NL_CAT_LOCALE);
  68 #endif
  69
  70         _DIAGASSERT(buf != NULL);
  71
  72         signum = num;                           /* convert to unsigned */
  73         if (signum < (unsigned int) sys_nsig) {
  74 #ifdef NLS
  75                 (void)strlcpy(buf, catgets(catd, 2, (int)signum,
  76                     sys_siglist[signum]), buflen);
  77 #else
  78                 return((char *)sys_siglist[signum]);
  79 #endif
  80         } else if (signum >= SIGRTMIN && signum <= SIGRTMAX) {
  81 #ifdef NLS
  82                 (void)snprintf(buf, buflen,
  83                     catgets(catd, 2, SIGRTMIN, RPREFIX), signum);
  84 #else
  85                 (void)snprintf(buf, buflen, RPREFIX, signum);
  86 #endif
  87         } else {
  88 #ifdef NLS
  89                 (void)snprintf(buf, buflen,
  90                     catgets(catd, 1, 0xffff, UPREFIX), signum);
  91 #else
  92                 (void)snprintf(buf, buflen, UPREFIX, signum);
  93 #endif
  94         }
  95
  96 #ifdef NLS
  97         catclose(catd);
  98 #endif
  99
 100         return buf;
 101 }