usr/src/lib/libshell/common/include/path.h

   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 */