1 2 /* : : generated by proto : : */ 3 /*********************************************************************** 4 * * 5 * This software is part of the ast package * 6 * Copyright (c) 1985-2008 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 89 typedef 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 106 107 extern __MANGLE__ int procclose __PROTO__((Proc_t*)); 108 extern __MANGLE__ int procfree __PROTO__((Proc_t*)); 109 extern __MANGLE__ Proc_t* procopen __PROTO__((const char*, char**, char**, long*, int)); 110 extern __MANGLE__ int procrun __PROTO__((const char*, char**, int)); 111 112 #undef __MANGLE__ 113 #define __MANGLE__ __LINKAGE__ 114 115 #endif 116