1 2/* : : generated by proto : : */ 3/*********************************************************************** 4* * 5* This software is part of the ast package * 6* Copyright (c) 1985-2010 AT&T Intellectual Property * 7* and is licensed under the * 8* Common Public License, Version 1.0 * 9* by AT&T Intellectual Property * 10* * 11* A copy of the License is available at * 12* http://www.opensource.org/licenses/cpl1.0.txt * 13* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 14* * 15* Information and Software Systems Research * 16* AT&T Research * 17* Florham Park NJ * 18* * 19* Glenn Fowler <gsf@research.att.com> * 20* David Korn <dgk@research.att.com> * 21* Phong Vo <kpv@research.att.com> * 22* * 23***********************************************************************/ 24 25 26/* 27 * process library interface 28 */ 29 30#ifndef _PROC_H 31#if !defined(__PROTO__) 32#include <prototyped.h> 33#endif 34#if !defined(__LINKAGE__) 35#define __LINKAGE__ /* 2004-08-11 transition */ 36#endif 37 38#define _PROC_H 39 40#include <ast.h> 41 42#define PROC_ARGMOD (1<<0) /* argv[-1],argv[0] can be modified */ 43#define PROC_BACKGROUND (1<<1) /* shell background (&) setup */ 44#define PROC_CHECK (1<<17) /* check that command exists */ 45#define PROC_CLEANUP (1<<2) /* close parent redirect fds on error */ 46#define PROC_DAEMON (1<<3) /* daemon setup */ 47#define PROC_ENVCLEAR (1<<4) /* clear environment */ 48#define PROC_FOREGROUND (1<<14) /* system(3) setup */ 49#define PROC_GID (1<<5) /* setgid(getgid()) */ 50#define PROC_IGNORE (1<<6) /* ignore parent pipe errors */ 51#define PROC_IGNOREPATH (1<<16) /* procrun() intercept to ignore path */ 52#define PROC_OVERLAY (1<<7) /* overlay current process if possible */ 53#define PROC_PARANOID (1<<8) /* restrict everything */ 54#define PROC_PRIVELEGED (1<<9) /* setuid(0), setgid(getegid()) */ 55#define PROC_READ (1<<10) /* proc pipe fd 1 returned */ 56#define PROC_SESSION (1<<11) /* session leader */ 57#define PROC_UID (1<<12) /* setuid(getuid()) */ 58#define PROC_WRITE (1<<13) /* proc pipe fd 0 returned */ 59#define PROC_ZOMBIE (1<<15) /* proc may leave a zombie behind */ 60 61#define PROC_ARG_BIT 14 /* bits per op arg */ 62#define PROC_OP_BIT 4 /* bits per op */ 63 64#define PROC_ARG_NULL ((1<<PROC_ARG_BIT)-1) 65 66#define PROC_fd_dup 0x4 67#define PROC_FD_CHILD 0x1 68#define PROC_FD_PARENT 0x2 69 70#define PROC_sig_dfl 0x8 71#define PROC_sig_ign 0x9 72 73#define PROC_sys_pgrp 0xa 74#define PROC_sys_umask 0xb 75 76#define PROC_op1(o,a) (((o)<<(2*PROC_ARG_BIT))|((a)&((PROC_ARG_NULL<<PROC_ARG_BIT)|PROC_ARG_NULL))) 77#define PROC_op2(o,a,b) (((o)<<(2*PROC_ARG_BIT))|(((b)&PROC_ARG_NULL)<<PROC_ARG_BIT)|((a)&PROC_ARG_NULL)) 78 79#define PROC_FD_CLOSE(p,f) PROC_op2(PROC_fd_dup|(f),p,PROC_ARG_NULL) 80#define PROC_FD_DUP(p,c,f) PROC_op2(PROC_fd_dup|(f),p,c) 81#define PROC_SIG_DFL(s) PROC_op1(PROC_sig_dfl,s,0) 82#define PROC_SIG_IGN(s) PROC_op1(PROC_sig_ign,s,0) 83#define PROC_SYS_PGRP(g) PROC_op1(PROC_sys_pgrp,g) 84#define PROC_SYS_UMASK(m) PROC_op1(PROC_sys_umask,m,0) 85 86#define PROC_OP(x) (((x)>>(2*PROC_ARG_BIT))&((1<<PROC_OP_BIT)-1)) 87#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))) 88 89typedef struct 90{ 91 pid_t pid; /* process id */ 92 pid_t pgrp; /* process group id */ 93 int rfd; /* read fd if applicable */ 94 int wfd; /* write fd if applicable */ 95 96#ifdef _PROC_PRIVATE_ 97_PROC_PRIVATE_ 98#endif 99 100} Proc_t; 101 102#if _BLD_ast && defined(__EXPORT__) 103#undef __MANGLE__ 104#define __MANGLE__ __LINKAGE__ __EXPORT__ 105#endif 106 107extern __MANGLE__ int procclose __PROTO__((Proc_t*)); 108extern __MANGLE__ int procfree __PROTO__((Proc_t*)); 109extern __MANGLE__ Proc_t* procopen __PROTO__((const char*, char**, char**, long*, int)); 110extern __MANGLE__ int procrun __PROTO__((const char*, char**, int)); 111 112#undef __MANGLE__ 113#define __MANGLE__ __LINKAGE__ 114 115#endif 116