signames.c

   1 /* signames.c -- Create and write `signames.h', which contains an array of
   2    signal names. */
   3
   4 /* Copyright (C) 1992 Free Software Foundation, Inc.
   5
   6    This file is part of GNU Bash, the Bourne Again SHell.
   7
   8    Bash is free software; you can redistribute it and/or modify it under
   9    the terms of the GNU General Public License as published by the Free
  10    Software Foundation; either version 1, or (at your option) any later
  11    version.
  12
  13    Bash is distributed in the hope that it will be useful, but WITHOUT ANY
  14    WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16    for more details.
  17
  18    You should have received a copy of the GNU General Public License along
  19    with Bash; see the file COPYING.  If not, write to the Free Software
  20    Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
  21
  22 #include <stdio.h>
  23 #include <sys/types.h>
  24 #include <signal.h>
  25 #if defined (HAVE_STDLIB_H)
  26 #  include <stdlib.h>
  27 #else
  28 #  include "ansi_stdlib.h"
  29 #endif /* HAVE_STDLIB_H */
  30
  31 #if !defined (NSIG)
  32 #  define NSIG 64
  33 #endif
  34
  35 char *signal_names[2 * NSIG];
  36
  37 char *progname;
  38
  39 initialize_signames ()
  40 {
  41   register int i;
  42
  43   for (i = 1; i < sizeof(signal_names)/sizeof(signal_names[0]); i++)
  44     signal_names[i] = (char *)NULL;
  45
  46   /* `signal' 0 is what we do on exit. */
  47   signal_names[0] = "EXIT";
  48
  49   /* Place signal names which can be aliases for more common signal
  50      names first.  This allows (for example) SIGEMT to overwrite SIGGRANT. */
  51 #if defined (SIGGRANT)  /* HFT monitor mode granted */
  52   signal_names[SIGGRANT] = "SIGGRANT";
  53 #endif
  54
  55 #if defined (SIGRETRACT) /* HFT monitor mode retracted */
  56   signal_names[SIGRETRACT] = "SIGRETRACT";
  57 #endif
  58
  59 #if defined (SIGHUP)    /* hangup */
  60   signal_names[SIGHUP] = "SIGHUP";
  61 #endif
  62
  63 #if defined (SIGINT)    /* interrupt */
  64   signal_names[SIGINT] = "SIGINT";
  65 #endif
  66
  67 #if defined (SIGQUIT)   /* quit */
  68   signal_names[SIGQUIT] = "SIGQUIT";
  69 #endif
  70
  71 #if defined (SIGILL)    /* illegal instruction (not reset when caught) */
  72   signal_names[SIGILL] = "SIGILL";
  73 #endif
  74
  75 #if defined (SIGTRAP)   /* trace trap (not reset when caught) */
  76   signal_names[SIGTRAP] = "SIGTRAP";
  77 #endif
  78
  79 #if defined (SIGABRT)   /* Cause current process to dump core. */
  80   signal_names[SIGABRT] = "SIGABRT";
  81 #endif
  82
  83 #if defined (SIGIOT)    /* IOT instruction */
  84   signal_names[SIGIOT] = "SIGIOT";
  85 #endif
  86
  87 #if defined (SIGEMT)    /* EMT instruction */
  88   signal_names[SIGEMT] = "SIGEMT";
  89 #endif
  90
  91 #if defined (SIGFPE)    /* floating point exception */
  92   signal_names[SIGFPE] = "SIGFPE";
  93 #endif
  94
  95 #if defined (SIGKILL)   /* kill (cannot be caught or ignored) */
  96   signal_names[SIGKILL] = "SIGKILL";
  97 #endif
  98
  99 #if defined (SIGBUS)    /* bus error */
 100   signal_names[SIGBUS] = "SIGBUS";
 101 #endif
 102
 103 #if defined (SIGSEGV)   /* segmentation violation */
 104   signal_names[SIGSEGV] = "SIGSEGV";
 105 #endif
 106
 107 #if defined (SIGSYS)    /* bad argument to system call */
 108   signal_names[SIGSYS] = "SIGSYS";
 109 #endif
 110
 111 #if defined (SIGPIPE)   /* write on a pipe with no one to read it */
 112   signal_names[SIGPIPE] = "SIGPIPE";
 113 #endif
 114
 115 #if defined (SIGALRM)   /* alarm clock */
 116   signal_names[SIGALRM] = "SIGALRM";
 117 #endif
 118
 119 #if defined (SIGTERM)   /* software termination signal from kill */
 120   signal_names[SIGTERM] = "SIGTERM";
 121 #endif
 122
 123 #if defined (SIGCLD)    /* Like SIGCHLD.  */
 124   signal_names[SIGCLD] = "SIGCLD";
 125 #endif
 126
 127 #if defined (SIGPWR)    /* Magic thing for some machines. */
 128   signal_names[SIGPWR] = "SIGPWR";
 129 #endif
 130
 131 #if defined (SIGPOLL)   /* For keyboard input?  */
 132   signal_names[SIGPOLL] = "SIGPOLL";
 133 #endif
 134
 135 #if defined (SIGURG)    /* urgent condition on IO channel */
 136   signal_names[SIGURG] = "SIGURG";
 137 #endif
 138
 139 #if defined (SIGSTOP)   /* sendable stop signal not from tty */
 140   signal_names[SIGSTOP] = "SIGSTOP";
 141 #endif
 142
 143 #if defined (SIGTSTP)   /* stop signal from tty */
 144   signal_names[SIGTSTP] = "SIGTSTP";
 145 #endif
 146
 147 #if defined (SIGCONT)   /* continue a stopped process */
 148   signal_names[SIGCONT] = "SIGCONT";
 149 #endif
 150
 151 #if defined (SIGCHLD)   /* to parent on child stop or exit */
 152   signal_names[SIGCHLD] = "SIGCHLD";
 153 #endif
 154
 155 #if defined (SIGTTIN)   /* to readers pgrp upon background tty read */
 156   signal_names[SIGTTIN] = "SIGTTIN";
 157 #endif
 158
 159 #if defined (SIGTTOU)   /* like TTIN for output if (tp->t_local&LTOSTOP) */
 160   signal_names[SIGTTOU] = "SIGTTOU";
 161 #endif
 162
 163 #if defined (SIGIO)     /* input/output possible signal */
 164   signal_names[SIGIO] = "SIGIO";
 165 #endif
 166
 167 #if defined (SIGXCPU)   /* exceeded CPU time limit */
 168   signal_names[SIGXCPU] = "SIGXCPU";
 169 #endif
 170
 171 #if defined (SIGXFSZ)   /* exceeded file size limit */
 172   signal_names[SIGXFSZ] = "SIGXFSZ";
 173 #endif
 174
 175 #if defined (SIGVTALRM) /* virtual time alarm */
 176   signal_names[SIGVTALRM] = "SIGVTALRM";
 177 #endif
 178
 179 #if defined (SIGPROF)   /* profiling time alarm */
 180   signal_names[SIGPROF] = "SIGPROF";
 181 #endif
 182
 183 #if defined (SIGWINCH)  /* window changed */
 184   signal_names[SIGWINCH] = "SIGWINCH";
 185 #endif
 186
 187 #if defined (SIGLOST)   /* resource lost (eg, record-lock lost) */
 188   signal_names[SIGLOST] = "SIGLOST";
 189 #endif
 190
 191 #if defined (SIGUSR1)   /* user defined signal 1 */
 192   signal_names[SIGUSR1] = "SIGUSR1";
 193 #endif
 194
 195 #if defined (SIGUSR2)   /* user defined signal 2 */
 196   signal_names[SIGUSR2] = "SIGUSR2";
 197 #endif
 198
 199 #if defined (SIGMSG)    /* HFT input data pending */
 200   signal_names[SIGMSG] = "SIGMSG";
 201 #endif
 202
 203 #if defined (SIGPWR)    /* power failure imminent (save your data) */
 204   signal_names[SIGPWR] = "SIGPWR";
 205 #endif
 206
 207 #if defined (SIGDANGER) /* system crash imminent */
 208   signal_names[SIGDANGER] = "SIGDANGER";
 209 #endif
 210
 211 #if defined (SIGMIGRATE) /* migrate process to another CPU */
 212   signal_names[SIGMIGRATE] = "SIGMIGRATE";
 213 #endif
 214
 215 #if defined (SIGPRE)    /* programming error */
 216   signal_names[SIGPRE] = "SIGPRE";
 217 #endif
 218
 219 #if defined (SIGSOUND)  /* HFT sound sequence has completed */
 220   signal_names[SIGSOUND] = "SIGSOUND";
 221 #endif
 222
 223 #if defined (SIGWINDOW)
 224   signal_names[SIGWINDOW] = "SIGWINDOW";
 225 #endif
 226
 227 #if defined (SIGDIL)
 228   signal_names[SIGDIL] = "SIGDIL";
 229 #endif
 230
 231 #if defined (SIGSAK)    /* Secure Attention Key */
 232   signal_names[SIGSAK] = "SIGSAK";
 233 #endif
 234
 235   for (i = 0; i < NSIG; i++)
 236     if (signal_names[i] == (char *)NULL)
 237       {
 238         signal_names[i] = (char *)malloc (18);
 239         sprintf (signal_names[i], "SIGJUNK(%d)", i);
 240       }
 241 }
 242
 243 write_signames (stream)
 244      FILE *stream;
 245 {
 246   register int i;
 247
 248   fprintf (stream, "/* This file was automatically created by %s.\n",
 249            progname);
 250   fprintf (stream, "   Do not edit.  Edit signames.c instead. */\n\n");
 251   fprintf (stream,
 252            "/* A translation list so we can be polite to our users. */\n");
 253   fprintf (stream, "char *signal_names[NSIG + 2] = {\n");
 254
 255   for (i = 0; i < NSIG; i++)
 256     fprintf (stream, "    \"%s\",\n", signal_names[i]);
 257
 258   fprintf (stream, "    (char *)0x0,\n");
 259   fprintf (stream, "};\n");
 260 }
 261
 262 main (argc, argv)
 263      int argc;
 264      char **argv;
 265 {
 266   char *stream_name;
 267   FILE *stream;
 268
 269   progname = argv[0];
 270
 271   if (argc == 1)
 272     {
 273       stream_name = "stdout";
 274       stream = stdout;
 275     }
 276   else if (argc == 2)
 277     {
 278       stream_name = argv[1];
 279       stream = fopen (stream_name, "w");
 280     }
 281   else
 282     {
 283       fprintf (stderr, "Usage: %s [output-file]\n", progname);
 284       exit (1);
 285     }
 286
 287   if (!stream)
 288     {
 289       fprintf (stderr, "%s: %s Cannot be opened or written to.\n",
 290                progname, stream_name);
 291       exit (2);
 292     }
 293
 294   initialize_signames ();
 295   write_signames (stream);
 296   exit (0);
 297 }