usr/src/lib/libc/port/gen/psiginfo.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2015 Circonus, Inc.  All rights reserved.
  23  */
  24
  25 /*
  26  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29
  30 /*      Copyright (c) 1988 AT&T */
  31 /*        All Rights Reserved   */
  32
  33 /*
  34  * Print the name of the siginfo indicated by "sig", along with the
  35  * supplied message
  36  */
  37
  38 #include "lint.h"
  39 #include "_libc_gettext.h"
  40 #include <sys/types.h>
  41 #include <stdio.h>
  42 #include <unistd.h>
  43 #include <string.h>
  44 #include <signal.h>
  45 #include <siginfo.h>
  46
  47 #define strsignal(i)    (_libc_gettext(_sys_siglistp[i]))
  48
  49 void
  50 psiginfo(const siginfo_t *sip, const char *s)
  51 {
  52         char buf[256];
  53         char *c;
  54         size_t l = 0;
  55         const struct siginfolist *listp;
  56
  57         if (sip == NULL)
  58                 return;
  59
  60         if (s != NULL && *s != '\0') {
  61                 l = snprintf(buf, sizeof (buf), _libc_gettext("%s : "), s);
  62                 if (l > sizeof (buf))
  63                         l = sizeof (buf);
  64         }
  65
  66
  67         if (sip->si_code <= 0) {
  68                 (void) snprintf(buf + l, sizeof (buf) - l,
  69                     _libc_gettext("%s ( from process  %d )\n"),
  70                     strsignal(sip->si_signo), sip->si_pid);
  71         } else if (((listp = &_sys_siginfolist[sip->si_signo-1]) != NULL) &&
  72             sip->si_code <= listp->nsiginfo) {
  73                 c = _libc_gettext(listp->vsiginfo[sip->si_code-1]);
  74                 switch (sip->si_signo) {
  75                 case SIGSEGV:
  76                 case SIGBUS:
  77                 case SIGILL:
  78                 case SIGFPE:
  79                         (void) snprintf(buf + l, sizeof (buf) - l,
  80                             _libc_gettext("%s ( [%p] %s)\n"),
  81                             strsignal(sip->si_signo),
  82                             sip->si_addr, c);
  83                         break;
  84                 default:
  85                         (void) snprintf(buf + l, sizeof (buf) - l,
  86                             _libc_gettext("%s (%s)\n"),
  87                             strsignal(sip->si_signo), c);
  88                         break;
  89                 }
  90         } else {
  91                 (void) snprintf(buf + l, sizeof (buf) - l,
  92                     _libc_gettext("%s\n"), strsignal(sip->si_signo));
  93         }
  94         (void) write(2, buf, strlen(buf));
  95 }