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ff8aef1993
param-no-tm.h: Define SYS_SIGLIST_MISSING from USG.
249 lines
6.5 KiB
C
Executable File
249 lines
6.5 KiB
C
Executable File
/* Convert between signal names and numbers.
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Copyright (C) 1990 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include <signal.h>
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#include "signame.h"
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#ifdef __STDC__
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#define CONST const
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#else
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#define CONST
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#endif
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#if SYS_SIGLIST_MISSING
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/* There is too much variation in Sys V signal numbers and names, so
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we must initialize them at runtime. */
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static CONST char undoc[] = "unknown signal";
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char *sys_siglist[NSIG];
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#endif /* SYS_SIGLIST_MISSING */
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/* Table of abbreviations for signals. Note: A given number can
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appear more than once with different abbreviations. */
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typedef struct
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{
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int number;
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CONST char *abbrev;
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} num_abbrev;
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static num_abbrev sig_table[NSIG*2];
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/* Number of elements of sig_table used. */
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static int sig_table_nelts = 0;
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/* Enter signal number NUMBER into the tables with ABBREV and NAME. */
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static void
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init_sig (number, abbrev, name)
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int number;
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CONST char *abbrev;
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CONST char *name;
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{
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#if SYS_SIGLIST_MISSING
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sys_siglist[number] = name;
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#endif
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sig_table[sig_table_nelts].number = number;
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sig_table[sig_table_nelts++].abbrev = abbrev;
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}
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static void init_sigs ()
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{
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#if SYS_SIGLIST_MISSING
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int i;
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/* Initialize signal names. */
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for (i = 0; i < NSIG; i++)
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sys_siglist[i] = undoc;
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#endif /* SYS_SIGLIST_MISSING */
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/* Initialize signal names. */
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#if defined (SIGHUP)
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init_sig (SIGHUP, "HUP", "Hangup");
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#endif
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#if defined (SIGINT)
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init_sig (SIGINT, "INT", "Interrupt");
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#endif
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#if defined (SIGQUIT)
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init_sig (SIGQUIT, "QUIT", "Quit");
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#endif
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#if defined (SIGILL)
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init_sig (SIGILL, "ILL", "Illegal Instruction");
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#endif
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#if defined (SIGTRAP)
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init_sig (SIGTRAP, "TRAP", "Trace/breakpoint trap");
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#endif
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/* If SIGIOT == SIGABRT, we want to print it as SIGABRT because
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SIGABRT is in ANSI and POSIX.1 and SIGIOT isn't. */
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#if defined (SIGABRT)
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init_sig (SIGABRT, "ABRT", "Aborted");
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#endif
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#if defined (SIGIOT)
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init_sig (SIGIOT, "IOT", "IOT trap");
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#endif
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#if defined (SIGEMT)
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init_sig (SIGEMT, "EMT", "EMT trap");
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#endif
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#if defined (SIGFPE)
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init_sig (SIGFPE, "FPE", "Floating point exception");
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#endif
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#if defined (SIGKILL)
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init_sig (SIGKILL, "KILL", "Killed");
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#endif
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#if defined (SIGBUS)
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init_sig (SIGBUS, "BUS", "Bus error");
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#endif
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#if defined (SIGSEGV)
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init_sig (SIGSEGV, "SEGV", "Segmentation fault");
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#endif
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#if defined (SIGSYS)
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init_sig (SIGSYS, "SYS", "Bad system call");
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#endif
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#if defined (SIGPIPE)
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init_sig (SIGPIPE, "PIPE", "Broken pipe");
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#endif
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#if defined (SIGALRM)
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init_sig (SIGALRM, "ALRM", "Alarm clock");
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#endif
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#if defined (SIGTERM)
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init_sig (SIGTERM, "TERM", "Terminated");
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#endif
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#if defined (SIGUSR1)
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init_sig (SIGUSR1, "USR1", "User defined signal 1");
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#endif
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#if defined (SIGUSR2)
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init_sig (SIGUSR2, "USR2", "User defined signal 2");
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#endif
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/* If SIGCLD == SIGCHLD, we want to print it as SIGCHLD because that
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is what is in POSIX.1. */
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#if defined (SIGCHLD)
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init_sig (SIGCHLD, "CHLD", "Child exited");
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#endif
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#if defined (SIGCLD)
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init_sig (SIGCLD, "CLD", "Child exited");
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#endif
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#if defined (SIGPWR)
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init_sig (SIGPWR, "PWR", "Power failure");
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#endif
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#if defined (SIGTSTP)
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init_sig (SIGTSTP, "TSTP", "Stopped");
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#endif
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#if defined (SIGTTIN)
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init_sig (SIGTTIN, "TTIN", "Stopped (tty input)");
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#endif
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#if defined (SIGTTOU)
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init_sig (SIGTTOU, "TTOU", "Stopped (tty output)");
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#endif
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#if defined (SIGSTOP)
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init_sig (SIGSTOP, "STOP", "Stopped (signal)");
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#endif
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#if defined (SIGXCPU)
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init_sig (SIGXCPU, "XCPU", "CPU time limit exceeded");
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#endif
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#if defined (SIGXFSZ)
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init_sig (SIGXFSZ, "XFSZ", "File size limit exceeded");
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#endif
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#if defined (SIGVTALRM)
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init_sig (SIGVTALRM, "VTALRM", "Virtual timer expired");
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#endif
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#if defined (SIGPROF)
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init_sig (SIGPROF, "PROF", "Profiling timer expired");
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#endif
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#if defined (SIGWINCH)
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/* "Window size changed" might be more accurate, but even if that
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is all that it means now, perhaps in the future it will be
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extended to cover other kinds of window changes. */
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init_sig (SIGWINCH, "WINCH", "Window changed");
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#endif
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#if defined (SIGCONT)
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init_sig (SIGCONT, "CONT", "Continued");
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#endif
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#if defined (SIGURG)
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init_sig (SIGURG, "URG", "Urgent I/O condition");
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#endif
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#if defined (SIGIO)
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/* "I/O pending" has also been suggested. A disadvantage is
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that signal only happens when the process has
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asked for it, not everytime I/O is pending. Another disadvantage
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is the confusion from giving it a different name than under Unix. */
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init_sig (SIGIO, "IO", "I/O possible");
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#endif
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#if defined (SIGWIND)
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init_sig (SIGWIND, "WIND", "SIGWIND");
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#endif
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#if defined (SIGPHONE)
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init_sig (SIGPHONE, "PHONE", "SIGPHONE");
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#endif
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#if defined (SIGPOLL)
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init_sig (SIGPOLL, "POLL", "I/O possible");
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#endif
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#if defined (SIGLOST)
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init_sig (SIGLOST, "LOST", "Resource lost");
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#endif
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}
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/* Return the abbreviation for signal NUMBER. */
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char *
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sig_abbrev (number)
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int number;
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{
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int i;
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for (i = 0; i < sig_table_nelts; i++)
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if (sig_table[i].number == number)
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return (char *)sig_table[i].abbrev;
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return NULL;
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}
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/* Return the signal number for an ABBREV, or -1 if there is no
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signal by that name. */
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int
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sig_number (abbrev)
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CONST char *abbrev;
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{
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int i;
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/* Skip over "SIG" if present. */
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if (abbrev[0] == 'S' && abbrev[1] == 'I' && abbrev[2] == 'G')
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abbrev += 3;
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for (i = 0; i < sig_table_nelts; i++)
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if (abbrev[0] == sig_table[i].abbrev[0]
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&& strcmp (abbrev, sig_table[i].abbrev) == 0)
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return sig_table[i].number;
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return -1;
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}
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#if SYS_SIGLIST_MISSING
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/* Print to standard error the name of SIGNAL, preceded by MESSAGE and
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a colon, and followed by a newline. */
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void
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psignal (signal, message)
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unsigned signal;
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CONST char *message;
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{
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if (signal <= 0 || signal >= NSIG)
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fprintf (stderr, "%s: unknown signal", message);
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else
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fprintf (stderr, "%s: %s\n", message, sys_siglist[signal]);
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}
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#endif /* SYS_SIGLIST_MISSING */
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void
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_initialize_signame ()
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{
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init_sigs ();
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}
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