cde/programs/dtksh/ksh93/src/cmd/ksh93/include/defs.h

   1 /*
   2  * CDE - Common Desktop Environment
   3  *
   4  * Copyright (c) 1993-2012, The Open Group. All rights reserved.
   5  *
   6  * These libraries and programs are free software; you can
   7  * redistribute them and/or modify them under the terms of the GNU
   8  * Lesser General Public License as published by the Free Software
   9  * Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * These libraries and programs are distributed in the hope that
  13  * they will be useful, but WITHOUT ANY WARRANTY; without even the
  14  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15  * PURPOSE. See the GNU Lesser General Public License for more
  16  * details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with these librararies and programs; if not, write
  20  * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
  21  * Floor, Boston, MA 02110-1301 USA
  22  */
  23 /* $XConsortium: defs.h /main/3 1995/11/01 16:39:16 rswiston $ */
  24 /***************************************************************
  25 *                                                              *
  26 *                      AT&T - PROPRIETARY                      *
  27 *                                                              *
  28 *        THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF        *
  29 *                    AT&T BELL LABORATORIES                    *
  30 *         AND IS NOT TO BE DISCLOSED OR USED EXCEPT IN         *
  31 *            ACCORDANCE WITH APPLICABLE AGREEMENTS             *
  32 *                                                              *
  33 *                Copyright (c) 1995 AT&T Corp.                 *
  34 *              Unpublished & Not for Publication               *
  35 *                     All Rights Reserved                      *
  36 *                                                              *
  37 *       The copyright notice above does not evidence any       *
  38 *      actual or intended publication of such source code      *
  39 *                                                              *
  40 *               This software was created by the               *
  41 *           Advanced Software Technology Department            *
  42 *                    AT&T Bell Laboratories                    *
  43 *                                                              *
  44 *               For further information contact                *
  45 *                    {research,attmail}!dgk                    *
  46 *                                                              *
  47 ***************************************************************/
  48
  49 /* : : generated by proto : : */
  50
  51 #if !defined(__PROTO__)
  52 #if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
  53 #if defined(__cplusplus)
  54 #define __MANGLE__      "C"
  55 #else
  56 #define __MANGLE__
  57 #endif
  58 #define __STDARG__
  59 #define __PROTO__(x)    x
  60 #define __OTORP__(x)
  61 #define __PARAM__(n,o)  n
  62 #if !defined(__STDC__) && !defined(__cplusplus)
  63 #if !defined(c_plusplus)
  64 #define const
  65 #endif
  66 #define signed
  67 #define void            int
  68 #define volatile
  69 #define __V_            char
  70 #else
  71 #define __V_            void
  72 #endif
  73 #else
  74 #define __PROTO__(x)    ()
  75 #define __OTORP__(x)    x
  76 #define __PARAM__(n,o)  o
  77 #define __MANGLE__
  78 #define __V_            char
  79 #define const
  80 #define signed
  81 #define void            int
  82 #define volatile
  83 #endif
  84 #if defined(__cplusplus) || defined(c_plusplus)
  85 #define __VARARG__      ...
  86 #else
  87 #define __VARARG__
  88 #endif
  89 #if defined(__STDARG__)
  90 #define __VA_START__(p,a)       va_start(p,a)
  91 #else
  92 #define __VA_START__(p,a)       va_start(p)
  93 #endif
  94 #endif
  95 #define mount   _AST__mount
  96
  97 #include        <ast.h>
  98 #include        <sfio.h>
  99 #include        <error.h>
 100 #include        "FEATURE/options"
 101 #include        <history.h>
 102 #include        "fault.h"
 103 #include        "argnod.h"
 104
 105 struct sh_scoped
 106 {
 107         struct slnod    *staklist;      /* link list of function stacks */
 108         int             states;
 109         int             breakcnt;
 110         int             execbrk;
 111         int             loopcnt;
 112         int             firstline;
 113         int             dolc;
 114         char            **dolv;
 115         long            optindex;
 116         long            optnum;
 117         short           optchar;
 118         short           opterror;
 119         char            *cmdname;
 120         int             ioset;
 121         short           trapmax;
 122         char            *trap[SH_DEBUGTRAP+1];
 123         char            **trapcom;
 124         char            **otrapcom;
 125         __V_            *timetrap;
 126         __V_            *par_tree;      /* for calling function */
 127         struct sh_scoped *prevst;       /* pointer to previous state */
 128 };
 129
 130 struct limits
 131 {
 132         int             open_max;       /* maximum number of file descriptors */
 133         int             clk_tck;        /* number of ticks per second */
 134         int             child_max;      /* maxumum number of children */
 135         int             ngroups_max;    /* maximum number of process groups */
 136         unsigned char   posix_version;  /* posix version number */
 137         unsigned char   posix_jobcontrol;/* non-zero for job control systems */
 138         unsigned char   fs3d;           /* non-zero for 3-d file system */
 139 };
 140
 141 #define _SH_PRIVATE \
 142         struct sh_scoped st;            /* scoped information */ \
 143         struct limits   lim;            /* run time limits */ \
 144         Hashtab_t       *track_tree;    /* for tracked aliases*/ \
 145         Hashtab_t       *bltin_tree;    /* for builtin commands */ \
 146         Hashtab_t       *var_base;      /* global level variables */ \
 147         History_t       *hist_ptr;      /* history file pointer */ \
 148         Sfio_t          *outpool;       /* ouput stream pool */ \
 149         long            timeout;        /* read timeout */ \
 150         long            tmout;          /* value for TMOUT */ \
 151         int             curenv;         /* current subshell number */ \
 152         int             jobenv;         /* subshell number for jobs */ \
 153         int             nextprompt;     /* next prompt is PS<nextprompt> */ \
 154         Namval_t        *bltin_cmds;    /* pointer to built-in commands */ \
 155         Namval_t        *posix_fun;     /* points to last name() function */ \
 156         int             infd;           /* input file descriptor */ \
 157         char            *outbuff;       /* pointer to output buffer */ \
 158         char            *errbuff;       /* pointer to stderr buffer */ \
 159         char            *prompt;        /* pointer to prompt string */ \
 160         char            *shname;        /* shell name */ \
 161         char            *comdiv;        /* points to sh -c argument */ \
 162         char            *prefix;        /* prefix for compound assignment */ \
 163         sigjmp_buf      *jmplist;       /* longjmp return stack */ \
 164         char            **sigmsg;       /* points to signal messages */ \
 165         int             oldexit; \
 166         uid_t           userid,euserid; /* real and effective user id */ \
 167         gid_t           groupid,egroupid;/* real and effective group id */ \
 168         pid_t           pid;            /* process id of shell */ \
 169         pid_t           bckpid;         /* background process id */ \
 170         pid_t           cpid; \
 171         long            ppid;           /* parent process id of shell */ \
 172         int             topfd; \
 173         int             sigmax;         /* maximum number of signals */ \
 174         unsigned char   *sigflag;       /* pointer to signal states */ \
 175         char            intrap; \
 176         char            login_sh; \
 177         char            lastbase; \
 178         char            universe; \
 179         char            forked; \
 180         char            binscript;      \
 181         char            used_pos;       /* used postional parameter */\
 182         unsigned char   lastsig;        /* last signal received */ \
 183         char            *readscript;    /* set before reading a script */ \
 184         int             *inpipe;        /* input pipe pointer */ \
 185         int             *outpipe;       /* output pipe pointer */ \
 186         int             cpipe[2]; \
 187         int             coutpipe; \
 188         struct argnod   *envlist; \
 189         struct dolnod   *arglist; \
 190         int             fn_depth; \
 191         int             dot_depth; \
 192         long            nforks; \
 193         char            ifstable[256];
 194
 195 #include        <shell.h>
 196
 197
 198 /* error exits from various parts of shell */
 199 #define NIL(type)       ((type)0)
 200
 201 #define new_of(type,x)  ((type*)malloc((unsigned)sizeof(type)+(x)))
 202
 203 #define exitset()       (sh.savexit=sh.exitval)
 204
 205
 206 /* states */
 207 /* low numbered states are same as options */
 208 #define SH_NOFORK       0x1     /* set when fork not necessary, not a state */
 209 #define SH_COMPLETE     0x1     /* set for command completion */
 210 #define SH_TTYWAIT      0x40    /* waiting for keyboard input */
 211 #define SH_FORKED       0x80    /* set when process has been forked */
 212 #define SH_PROFILE      0x100   /* set when processing profiles */
 213 #define SH_NOALIAS      0x200   /* do not expand non-exported aliases */
 214 #define SH_NOTRACK      0x400   /* set to disable sftrack() function */
 215 #define SH_STOPOK       0x800   /* set for stopable builtins */
 216 #define SH_GRACE        0x1000  /* set for timeout grace period */
 217 #define SH_TIMING       0x2000  /* set while timing pipelines */
 218 #define SH_DEFPATH      0x4000  /* set when using default path */
 219 #define SH_INIT         0x8000  /* set when initializing the shell */
 220
 221 extern __MANGLE__ Namval_t              *sh_assignok __PROTO__((Namval_t*,int));
 222 extern __MANGLE__ int           sh_echolist __PROTO__((Sfio_t*, int, char**));
 223 extern __MANGLE__ struct argnod *sh_endword __PROTO__((int));
 224 extern __MANGLE__ char          **sh_envgen __PROTO__((void));
 225 extern __MANGLE__ void          sh_envnolocal __PROTO__((Namval_t*));
 226 extern __MANGLE__ char          *sh_etos __PROTO__((double,int));
 227 extern __MANGLE__ char          *sh_ftos __PROTO__((double,int));
 228 extern __MANGLE__ double                sh_arith __PROTO__((const char*));
 229 extern __MANGLE__ pid_t                 sh_fork __PROTO__((int,int*));
 230 extern __MANGLE__ char          *sh_mactrim __PROTO__((char*,int));
 231 extern __MANGLE__ int           sh_macexpand __PROTO__((struct argnod*,struct argnod**));
 232 extern __MANGLE__ void          sh_machere __PROTO__((Sfio_t*, Sfio_t*, char*));
 233 extern __MANGLE__ char          *sh_mactry __PROTO__((char*));
 234 extern __MANGLE__ int           sh_readline __PROTO__((char**,int,int,long));
 235 extern __MANGLE__ void          sh_reinit __PROTO__((char*[]));
 236 extern __MANGLE__ Sfio_t                *sh_sfeval __PROTO__((char*[]));
 237 extern __MANGLE__ void          sh_subtmpfile __PROTO__((void));
 238 extern __MANGLE__ Sfio_t                *sh_subshell __PROTO__((union anynode*, int, int));
 239 extern __MANGLE__ char          *sh_substitute __PROTO__((const char*,const char*,char*));
 240 extern __MANGLE__ int           sh_tdump __PROTO__((Sfio_t*, const union anynode*));
 241 extern __MANGLE__ int           sh_trace __PROTO__((char*[],int));
 242 extern __MANGLE__ union anynode *sh_trestore __PROTO__((Sfio_t*));
 243 extern __MANGLE__ void          sh_trim __PROTO__((char*));
 244 extern __MANGLE__ void          sh_userinit __PROTO__((void));
 245 extern __MANGLE__ int           sh_whence __PROTO__((char**,int));
 246
 247
 248 #define sh_isstate(x)   (sh.st.states&((int)(x)))
 249 #define sh_onstate(x)   (sh.st.states |= ((int)(x)))
 250 #define sh_setstate(x)  (sh.st.states = ((int)(x)))
 251 #define sh_offstate(x)  (sh.st.states &= ~((int)(x)))
 252
 253 extern __MANGLE__ time_t                sh_mailchk;