1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1982-2010 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * David Korn <dgk@research.att.com> * 18 * * 19 ***********************************************************************/ 20 #pragma prototyped 21 #ifndef PATH_OFFSET 22 23 /* 24 * UNIX shell path handling interface 25 * Written by David Korn 26 * These are the definitions for the lexical analyzer 27 */ 28 29 #include "FEATURE/options" 30 #include <nval.h> 31 32 #if !defined(SHOPT_SPAWN) 33 # if _UWIN || _use_spawnveg || !_lib_fork 34 # define SHOPT_SPAWN 1 35 # endif 36 #endif /* !SHOPT_SPAWN */ 37 38 #define PATH_PATH 0001 39 #define PATH_FPATH 0002 40 #define PATH_CDPATH 0004 41 #define PATH_BFPATH 0010 42 #define PATH_SKIP 0020 43 #define PATH_BUILTIN_LIB 0040 44 #define PATH_STD_DIR 0100 /* directory is on $(getconf PATH) */ 45 46 #define PATH_OFFSET 2 /* path offset for path_join */ 47 #define MAXDEPTH (sizeof(char*)==2?64:1024) /* maximum recursion depth*/ 48 49 /* 50 * path component structure for path searching 51 */ 52 typedef struct pathcomp 53 { 54 struct pathcomp *next; 55 int refcount; 56 dev_t dev; 57 ino_t ino; 58 time_t mtime; 59 char *name; 60 char *lib; 61 char *blib; 62 void *bltin_lib; 63 unsigned short len; 64 unsigned short flags; 65 Shell_t *shp; 66 } Pathcomp_t; 67 68 #ifndef ARG_RAW 69 struct argnod; 70 #endif /* !ARG_RAW */ 71 72 /* pathname handling routines */ 73 extern void path_newdir(Pathcomp_t*); 74 extern Pathcomp_t *path_dirfind(Pathcomp_t*,const char*,int); 75 extern Pathcomp_t *path_unsetfpath(Pathcomp_t*); 76 extern Pathcomp_t *path_addpath(Pathcomp_t*,const char*,int); 77 extern Pathcomp_t *path_dup(Pathcomp_t*); 78 extern void path_delete(Pathcomp_t*); 79 extern void path_alias(Namval_t*,Pathcomp_t*); 80 extern Pathcomp_t *path_absolute(const char*, Pathcomp_t*); 81 extern char *path_basename(const char*); 82 extern char *path_fullname(const char*); 83 extern int path_expand(const char*, struct argnod**); 84 extern void path_exec(const char*,char*[],struct argnod*); 85 extern pid_t path_spawn(const char*,char*[],char*[],Pathcomp_t*,int); 86 #if defined(__EXPORT__) && defined(_BLD_DLL) && defined(_BLD_shell) 87 # define extern __EXPORT__ 88 #endif 89 extern int path_open(const char*,Pathcomp_t*); 90 extern Pathcomp_t *path_get(const char*); 91 #undef extern 92 extern char *path_pwd(int); 93 extern Pathcomp_t *path_nextcomp(Pathcomp_t*,const char*,Pathcomp_t*); 94 extern int path_search(const char*,Pathcomp_t**,int); 95 extern char *path_relative(const char*); 96 extern int path_complete(const char*, const char*,struct argnod**); 97 #if SHOPT_BRACEPAT 98 extern int path_generate(struct argnod*,struct argnod**); 99 #endif /* SHOPT_BRACEPAT */ 100 101 /* constant strings needed for whence */ 102 extern const char e_timeformat[]; 103 extern const char e_badtformat[]; 104 extern const char e_dot[]; 105 extern const char e_pfsh[]; 106 extern const char e_pwd[]; 107 extern const char e_logout[]; 108 extern const char e_alphanum[]; 109 extern const char e_mailmsg[]; 110 extern const char e_suidprofile[]; 111 extern const char e_sysprofile[]; 112 extern const char e_traceprompt[]; 113 extern const char e_crondir[]; 114 #if SHOPT_SUID_EXEC 115 extern const char e_suidexec[]; 116 #endif /* SHOPT_SUID_EXEC */ 117 extern const char is_alias[]; 118 extern const char is_builtin[]; 119 extern const char is_spcbuiltin[]; 120 extern const char is_builtver[]; 121 extern const char is_reserved[]; 122 extern const char is_talias[]; 123 extern const char is_xalias[]; 124 extern const char is_function[]; 125 extern const char is_ufunction[]; 126 #ifdef SHELLMAGIC 127 extern const char e_prohibited[]; 128 #endif /* SHELLMAGIC */ 129 130 #if SHOPT_ACCT 131 # include "FEATURE/acct" 132 # ifdef _sys_acct 133 extern void sh_accinit(void); 134 extern void sh_accbegin(const char*); 135 extern void sh_accend(void); 136 extern void sh_accsusp(void); 137 # else 138 # undef SHOPT_ACCT 139 # endif /* _sys_acct */ 140 #endif /* SHOPT_ACCT */ 141 142 #endif /*! PATH_OFFSET */ 143