mdw@git.distorted.org.uk Git - disorder/blob - lib/wstat.c

   1 /*
   2  * This file is part of DisOrder.
   3  * Copyright (C) 2004, 2007, 2008 Richard Kettlewell
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18  * USA
  19  */
  20 /** @file lib/wstat.c
  21  * @brief Convert wait status to text
  22  */
  23
  24 #include <config.h>
  25
  26 #include <sys/wait.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <signal.h>
  30
  31 #include "mem.h"
  32 #include "log.h"
  33 #include "wstat.h"
  34 #include "printf.h"
  35
  36 /** @brief Convert exit status to text
  37  * @param w Exit status (e.g. from waitpid())
  38  * @return Allocated string containing description of status
  39  */
  40 const char *wstat(int w) {
  41   int n;
  42   char *r;
  43
  44   if(WIFEXITED(w))
  45     n = byte_xasprintf(&r, "exited with status %d", WEXITSTATUS(w));
  46   else if(WIFSIGNALED(w))
  47     n = byte_xasprintf(&r, "terminated by signal %d (%s)%s",
  48                  WTERMSIG(w), strsignal(WTERMSIG(w)),
  49                  WCOREDUMP(w) ? " - core dumped" : "");
  50   else if(WIFSTOPPED(w))
  51     n = byte_xasprintf(&r, "stopped by signal %d (%s)",
  52                  WSTOPSIG(w), strsignal(WSTOPSIG(w)));
  53   else
  54     n = byte_xasprintf(&r, "terminated with unknown wait status %#x",
  55                       (unsigned)w);
  56   return n >= 0 ? r : "[could not convert wait status]";
  57 }
  58
  59 /*
  60 Local Variables:
  61 c-basic-offset:2
  62 comment-column:40
  63 End:
  64 */