Imported Upstream version 93u+upstream

1 files changed, 108 insertions, 0 deletions

diff --git a/src/lib/libast/include/proc.h b/src/lib/libast/include/proc.h
new file mode 100644
index 0000000..76fdf83
--- /dev/null
+++ b/src/lib/libast/include/proc.h
@@ -0,0 +1,108 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                   Phong Vo <kpv@research.att.com>                    *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+
+/*
+ * process library interface
+ */
+
+#ifndef _PROC_H
+#define _PROC_H
+
+#include <ast.h>
+
+#define PROC_ARGMOD	(1<<0)	/* argv[-1],argv[0] can be modified	*/
+#define PROC_BACKGROUND	(1<<1)	/* shell background (&) setup		*/
+#define PROC_CHECK	(1<<17)	/* check that command exists		*/
+#define PROC_CLEANUP	(1<<2)	/* close parent redirect fds on error	*/
+#define PROC_DAEMON	(1<<3)	/* daemon setup				*/
+#define PROC_ENVCLEAR	(1<<4)	/* clear environment			*/
+#define PROC_FOREGROUND	(1<<14)	/* system(3) setup			*/
+#define PROC_GID	(1<<5)	/* setgid(getgid())			*/
+#define PROC_IGNORE	(1<<6)	/* ignore parent pipe errors		*/
+#define PROC_IGNOREPATH	(1<<16)	/* procrun() intercept to ignore path	*/
+#define PROC_ORPHAN	(1<<18)	/* create orphaned process		*/
+#define PROC_OVERLAY	(1<<7)	/* overlay current process if possible	*/
+#define PROC_PARANOID	(1<<8)	/* restrict everything			*/
+#define PROC_PRIVELEGED	(1<<9)	/* setuid(0), setgid(getegid())		*/
+#define PROC_READ	(1<<10)	/* proc pipe fd 1 returned		*/
+#define PROC_SESSION	(1<<11)	/* session leader			*/
+#define PROC_UID	(1<<12)	/* setuid(getuid())			*/
+#define PROC_WRITE	(1<<13)	/* proc pipe fd 0 returned		*/
+#define PROC_ZOMBIE	(1<<15)	/* proc may leave a zombie behind	*/
+
+#define PROC_ARG_BIT	14	/* bits per op arg			*/
+#define PROC_OP_BIT	4	/* bits per op				*/
+
+#define PROC_ARG_NULL	((1<<PROC_ARG_BIT)-1)
+
+#define PROC_fd_dup	0x4
+#define PROC_FD_CHILD	0x1
+#define PROC_FD_PARENT	0x2
+
+#define PROC_sig_dfl	0x8
+#define PROC_sig_ign	0x9
+
+#define PROC_sys_pgrp	0xa
+#define PROC_sys_umask	0xb
+
+#define PROC_fd_ctty	0xc
+
+#define PROC_op1(o,a)	(((o)<<(2*PROC_ARG_BIT))|((a)&((PROC_ARG_NULL<<PROC_ARG_BIT)|PROC_ARG_NULL)))
+#define PROC_op2(o,a,b)	(((o)<<(2*PROC_ARG_BIT))|(((b)&PROC_ARG_NULL)<<PROC_ARG_BIT)|((a)&PROC_ARG_NULL))
+
+#define PROC_FD_CLOSE(p,f)	PROC_op2(PROC_fd_dup|(f),p,PROC_ARG_NULL)
+#define PROC_FD_CTTY(f)		PROC_op1(PROC_fd_ctty,f)
+#define PROC_FD_DUP(p,c,f)	PROC_op2(PROC_fd_dup|(f),p,c)
+#define PROC_SIG_DFL(s)		PROC_op1(PROC_sig_dfl,s,0)
+#define PROC_SIG_IGN(s)		PROC_op1(PROC_sig_ign,s,0)
+#define PROC_SYS_PGRP(g)	PROC_op1(PROC_sys_pgrp,g)
+#define PROC_SYS_UMASK(m)	PROC_op1(PROC_sys_umask,m,0)
+
+#define PROC_OP(x)	(((x)>>(2*PROC_ARG_BIT))&((1<<PROC_OP_BIT)-1))
+#define PROC_ARG(x,n)	((n)?(((x)>>(((n)-1)*PROC_ARG_BIT))&PROC_ARG_NULL):(((x)&~((1<<(2*PROC_ARG_BIT))-1))==~((1<<(2*PROC_ARG_BIT))-1))?(-1):((x)&~((1<<(2*PROC_ARG_BIT))-1)))
+
+typedef struct
+{
+	pid_t	pid;			/* process id			*/
+	pid_t	pgrp;			/* process group id		*/
+	int	rfd;			/* read fd if applicable	*/
+	int	wfd;			/* write fd if applicable	*/
+
+#ifdef _PROC_PRIVATE_
+_PROC_PRIVATE_
+#endif
+
+} Proc_t;
+
+#if _BLD_ast && defined(__EXPORT__)
+#define extern		__EXPORT__
+#endif
+
+extern int	procclose(Proc_t*);
+extern int	procfree(Proc_t*);
+extern Proc_t*	procopen(const char*, char**, char**, long*, int);
+extern int	procrun(const char*, char**, int);
+
+#undef	extern
+
+#endif