xref: /onnv-gate/usr/src/lib/libast/common/features/sig.sh (revision 4887:feebf9260c2e)
1*4887Schin########################################################################
2*4887Schin#                                                                      #
3*4887Schin#               This software is part of the ast package               #
4*4887Schin#           Copyright (c) 1985-2007 AT&T Knowledge Ventures            #
5*4887Schin#                      and is licensed under the                       #
6*4887Schin#                  Common Public License, Version 1.0                  #
7*4887Schin#                      by AT&T Knowledge Ventures                      #
8*4887Schin#                                                                      #
9*4887Schin#                A copy of the License is available at                 #
10*4887Schin#            http://www.opensource.org/licenses/cpl1.0.txt             #
11*4887Schin#         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         #
12*4887Schin#                                                                      #
13*4887Schin#              Information and Software Systems Research               #
14*4887Schin#                            AT&T Research                             #
15*4887Schin#                           Florham Park NJ                            #
16*4887Schin#                                                                      #
17*4887Schin#                 Glenn Fowler <gsf@research.att.com>                  #
18*4887Schin#                  David Korn <dgk@research.att.com>                   #
19*4887Schin#                   Phong Vo <kpv@research.att.com>                    #
20*4887Schin#                                                                      #
21*4887Schin########################################################################
22*4887Schin: generate sig features
23*4887Schincase $# in
24*4887Schin0)	;;
25*4887Schin*)	eval $1
26*4887Schin	shift
27*4887Schin	;;
28*4887Schinesac
29*4887Schinecho "#include <signal.h>
30*4887Schinint xxx;" > $tmp.c
31*4887Schin$cc -c $tmp.c >/dev/null 2>$tmp.e
32*4887Schinecho "#pragma prototyped
33*4887Schin#define sig_info	_sig_info_
34*4887Schin
35*4887Schin#if defined(__STDPP__directive) && defined(__STDPP__hide)
36*4887Schin__STDPP__directive pragma pp:hide kill killpg
37*4887Schin#else
38*4887Schin#define kill	______kill
39*4887Schin#define killpg	______killpg
40*4887Schin#endif
41*4887Schin#include <signal.h>
42*4887Schin#if defined(__STDPP__directive) && defined(__STDPP__hide)
43*4887Schin__STDPP__directive pragma pp:nohide kill killpg
44*4887Schin#else
45*4887Schin#undef	kill
46*4887Schin#undef	killpg
47*4887Schin#endif
48*4887Schin#ifndef sigmask
49*4887Schin#define sigmask(s)	(1<<((s)-1))
50*4887Schin#endif"
51*4887Schinecho "#include <signal.h>
52*4887Schin#ifdef TYPE
53*4887Schin#if defined(__STDC__) || defined(__cplusplus) || defined(c_plusplus)
54*4887Schintypedef TYPE (*Sig_handler_t)(ARG);
55*4887Schin#else
56*4887Schintypedef TYPE (*Sig_handler_t)();
57*4887Schin#endif
58*4887Schin#endif
59*4887SchinSig_handler_t f()
60*4887Schin{
61*4887Schin	Sig_handler_t	handler;
62*4887Schin	handler = signal(1, SIG_IGN);
63*4887Schin	return(handler);
64*4887Schin}" > $tmp.c
65*4887Schinif	$cc -c $tmp.c >/dev/null
66*4887Schinthen	:
67*4887Schinelse	e=`wc -l $tmp.e`
68*4887Schin	i1= j1=
69*4887Schin	for i in void int
70*4887Schin	do	for j in int,... ... int
71*4887Schin		do	$cc -c -DTYPE=$i -DARG=$j $tmp.c >/dev/null 2>$tmp.e || continue
72*4887Schin			case `wc -l $tmp.e` in
73*4887Schin			$e)	i1= j1=; break 2 ;;
74*4887Schin			esac
75*4887Schin			case $i1 in
76*4887Schin			"")	i1=$i j1=$j ;;
77*4887Schin			esac
78*4887Schin		done
79*4887Schin	done
80*4887Schin	case $i1 in
81*4887Schin	?*)	i=$i1 j=$j1 ;;
82*4887Schin	esac
83*4887Schin	echo "typedef $i (*Sig_handler_t)($j);"
84*4887Schinfi
85*4887Schinecho '
86*4887Schin
87*4887Schin#define Handler_t		Sig_handler_t
88*4887Schin
89*4887Schin#define SIG_REG_PENDING		(-1)
90*4887Schin#define SIG_REG_POP		0
91*4887Schin#define SIG_REG_EXEC		00001
92*4887Schin#define SIG_REG_PROC		00002
93*4887Schin#define SIG_REG_TERM		00004
94*4887Schin#define SIG_REG_ALL		00777
95*4887Schin#define SIG_REG_SET		01000
96*4887Schin
97*4887Schintypedef struct
98*4887Schin{
99*4887Schin	char**		name;
100*4887Schin	char**		text;
101*4887Schin	int		sigmax;
102*4887Schin} Sig_info_t;
103*4887Schin
104*4887Schinextern int		kill(pid_t, int);
105*4887Schinextern int		killpg(pid_t, int);
106*4887Schin
107*4887Schin#if _BLD_ast && defined(__EXPORT__)
108*4887Schin#define extern		extern __EXPORT__
109*4887Schin#endif
110*4887Schin#if !_BLD_ast && defined(__IMPORT__)
111*4887Schin#define extern		extern __IMPORT__
112*4887Schin#endif
113*4887Schin
114*4887Schinextern Sig_info_t	sig_info;
115*4887Schin
116*4887Schin#undef	extern
117*4887Schin
118*4887Schin#if _BLD_ast && defined(__EXPORT__)
119*4887Schin#define extern		__EXPORT__
120*4887Schin#endif
121*4887Schin
122*4887Schinextern int		sigcritical(int);
123*4887Schinextern int		sigunblock(int);
124*4887Schin
125*4887Schin#undef	extern'
126