tools/tesh/signal.c

   1 /* $Id$ */
   2
   3 /* signal -- what TESH needs to know about signals                          */
   4
   5 /* Copyright (c) 2007 Martin Quinson.                                       */
   6 /* All rights reserved.                                                     */
   7
   8 /* This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the license (GNU LGPL) which comes with this package. */
  10
  11 #include "tesh.h"
  12 #include <signal.h>
  13
  14 typedef struct s_signal_entry {
  15   const char* name;
  16   int number;
  17 } s_signal_entry_t,* signal_entry_t;
  18
  19 static const s_signal_entry_t signals[] = {
  20         {"SIGHUP"       ,SIGHUP},
  21         {"SIGINT"       ,SIGINT},
  22         {"SIGQUIT"      ,SIGQUIT},
  23         {"SIGILL"       ,SIGILL},
  24         {"SIGTRAP"      ,SIGTRAP},
  25         {"SIGABRT"      ,SIGABRT},
  26         {"SIGFPE"       ,SIGFPE},
  27         {"SIGKILL"      ,SIGKILL},
  28         {"SIGBUS"       ,SIGBUS},
  29         {"SIGSEGV"      ,SIGSEGV},
  30         {"SIGSYS"       ,SIGSYS},
  31         {"SIGPIPE"      ,SIGPIPE},
  32         {"SIGALRM"      ,SIGALRM},
  33         {"SIGTERM"      ,SIGTERM},
  34         {"SIGURG"       ,SIGURG},
  35         {"SIGSTOP"      ,SIGSTOP},
  36         {"SIGTSTP"      ,SIGTSTP},
  37         {"SIGCONT"      ,SIGCONT},
  38         {"SIGCHLD"      ,SIGCHLD},
  39         {"SIGTTIN"      ,SIGTTIN},
  40         {"SIGTTOU"      ,SIGTTOU},
  41         {"SIGIO"        ,SIGIO},
  42         {"SIGXCPU"      ,SIGXCPU},
  43         {"SIGXFSZ"      ,SIGXFSZ},
  44         {"SIGVTALRM"    ,SIGVTALRM},
  45         {"SIGPROF"      ,SIGPROF},
  46         {"SIGWINCH"     ,SIGWINCH},
  47         {"SIGUSR1"      ,SIGUSR1},
  48         {"SIGUSR2"      ,SIGUSR2},
  49         {"SIG UNKNOWN"  ,-1}
  50 };
  51
  52
  53 const char* signal_name(unsigned int got, char *expected) {
  54   int i;
  55
  56   /* Make SIGBUS a synonym for SIGSEGV
  57      (segfault leads to any of them depending on the system) */
  58   if((got == SIGBUS) && !strcmp("SIGSEGV",expected))
  59     got = SIGSEGV;
  60
  61   for (i=0; signals[i].number != -1; i++)
  62     if (signals[i].number == got)
  63       return (signals[i].name);
  64
  65   return bprintf("SIG UNKNOWN (%d)", got);
  66 }