?RCS: $Id: sig_name.U 78389 2004-11-30 00:17:17Z manus $ ?RCS: ?RCS: Copyright (c) 1991-1993, Raphael Manfredi ?RCS: ?RCS: You may redistribute only under the terms of the Artistic Licence, ?RCS: as specified in the README file that comes with the distribution. ?RCS: You may reuse parts of this distribution only within the terms of ?RCS: that same Artistic Licence; a copy of which may be found at the root ?RCS: of the source tree for dist 3.0. ?RCS: ?RCS: $Log$ ?RCS: Revision 1.1 2004/11/30 00:17:18 manus ?RCS: Initial revision ?RCS: ?RCS: Revision 3.0.1.5 1997/02/28 16:21:25 ram ?RCS: patch61: brand new algorithm for sig_name and (new!) sig_num ?RCS: ?RCS: Revision 3.0.1.4 1995/07/25 14:14:54 ram ?RCS: patch56: added lookup for linux ?RCS: ?RCS: Revision 3.0.1.3 1995/05/12 12:24:11 ram ?RCS: patch54: now looks for too (ADO) ?RCS: ?RCS: Revision 3.0.1.2 1994/06/20 07:06:57 ram ?RCS: patch30: final echo was missing to close awk-printed string ?RCS: ?RCS: Revision 3.0.1.1 1994/05/06 15:17:55 ram ?RCS: patch23: signal list now formatted to avoid scroll-ups (ADO) ?RCS: ?RCS: Revision 3.0 1993/08/18 12:09:47 ram ?RCS: Baseline for dist 3.0 netwide release. ?RCS: ?MAKE:sig_name sig_num: awk Signal Oldconfig rm ?MAKE: -pick add $@ %< ?S:sig_name: ?S: This variable holds the signal names, space separated. The leading ?S: SIG in signals name is removed. See sig_num. ?S:. ?S:sig_num: ?S: This variable holds the signal numbers, space separated. Those numbers ?S: correspond to the value of the signal listed in the same place within ?S: the sig_name list. ?S:. ?C:SIG_NAME: ?C: This symbol contains a list of signal names in order of ?C: signal number. This is intended ?C: to be used as a static array initialization, like this: ?C: char *sig_name[] = { SIG_NAME }; ?C: The signals in the list are separated with commas, and each signal ?C: is surrounded by double quotes. There is no leading SIG in the signal ?C: name, i.e. SIGQUIT is known as "QUIT". ?C: Gaps in the signal numbers (up to NSIG) are filled in with NUMnn, ?C: etc., where nn is the actual signal number (e.g. NUM37). ?C: The signal number for sig_name[i] is stored in sig_num[i]. ?C: The last element is 0 to terminate the list with a NULL. This ?C: corresponds to the 0 at the end of the sig_num list. ?C:. ?C:SIG_NUM: ?C: This symbol contains a list of signal numbers, in the same order as the ?C: SIG_NAME list. It is suitable for static array initialization, as in: ?C: int sig_num[] = { SIG_NUM }; ?C: The signals in the list are separated with commas, and the indices ?C: within that list and the SIG_NAME list match, so it's easy to compute ?C: the signal name from a number or vice versa at the price of a small ?C: dynamic linear lookup. ?C: Duplicates are allowed, but are moved to the end of the list. ?C: The signal number corresponding to sig_name[i] is sig_number[i]. ?C: if (i < NSIG) then sig_number[i] == i. ?C: The last element is 0, corresponding to the 0 at the end of ?C: the sig_name list. ?C:. ?H:#define SIG_NAME "`echo $sig_name | sed 's/ /","/g'`",0 /**/ ?H:#define SIG_NUM `echo $sig_num 0 | sed 's/ /,/g'` /**/ ?H:. ?T:i ?X: signal.cmd creates a file signal.lst which has two columns: ?X: NAME number, e.g. ?X: HUP 1 ?X: The list is sorted on signal number, with duplicates moved to ?X: the end.. : generate list of signal names echo " " ?X: Previous versions used a different algorithm to get sig_name, ?X: and didn't get sig_num at all. If either sig_name or sig_num ?X: is empty, compute both all over again. If both are set, it ?X: could be a hint file or a previous value, so let it stay. case "$sig_name" in '') sig_num='' ;; esac case "$sig_num" in '') sig_name='' ;; esac case "$sig_name" in '') echo "Generating a list of signal names and numbers..." >&4 ./signal_cmd sig_name=`$awk '{printf "%s ", $1}' signal.lst` sig_name="ZERO $sig_name" sig_num=`$awk '{printf "%d ", $2}' signal.lst` sig_num="0 $sig_num" ;; esac echo "The following signals are available:" echo " " echo $sig_name | $awk \ 'BEGIN { linelen = 0 } { for (i = 1; i <= NF; i++) { name = "SIG" $i " " linelen = linelen + length(name) if (linelen > 70) { printf "\n" linelen = length(name) } printf "%s", name } printf "\n" }' $rm -f signal signal.c signal.awk signal.lst signal_cmd