src/ash/generated/init.c

   1 /*
   2  * This file was generated by the mkinit program.
   3  */
   4
   5 #include "shell.h"
   6 #include "mystring.h"
   7 #include "init.h"
   8 #include "eval.h"
   9 #include <stdio.h>
  10 #include "input.h"
  11 #include "error.h"
  12 #include <stdlib.h>
  13 #include "options.h"
  14 #include "output.h"
  15 #include "memalloc.h"
  16 #include "redir.h"
  17 #include <signal.h>
  18 #include "trap.h"
  19 #include "var.h"
  20
  21
  22
  23 #undef  ATABSIZE
  24 #define ATABSIZE 39
  25 #undef  MAXPWD
  26 #define MAXPWD 256
  27 #undef  ALL
  28 #define ALL (E_OPEN|E_CREAT|E_EXEC)
  29 #undef  EV_EXIT
  30 #define EV_EXIT 01              /* exit after evaluating tree */
  31 #undef  EV_TESTED
  32 #define EV_TESTED 02            /* exit status is checked; ignore -e flag */
  33 #undef  EV_BACKCMD
  34 #define EV_BACKCMD 04           /* command executing within back quotes */
  35 #undef  CMDTABLESIZE
  36 #define CMDTABLESIZE 31         /* should be prime */
  37 #undef  ARB
  38 #define ARB 1                   /* actual size determined at run time */
  39 #undef  NEWARGS
  40 #define NEWARGS 5
  41 #undef  MAXHISTLOOPS
  42 #define MAXHISTLOOPS    4       /* max recursions through fc */
  43 #undef  DEFEDITOR
  44 #define DEFEDITOR       "ed"    /* default editor *should* be $EDITOR */
  45 #undef  editing
  46 #define editing (Eflag || Vflag)
  47 #undef  EOF_NLEFT
  48 #define EOF_NLEFT -99           /* value of parsenleft when EOF pushed back */
  49 #undef  MAXMBOXES
  50 #define MAXMBOXES 10
  51 #undef  PROFILE
  52 #define PROFILE 0
  53 #undef  SIGSSIZE
  54 #define SIGSSIZE (sizeof(sigs)/sizeof(sigs[0]))
  55 #undef  MINSIZE
  56 #define MINSIZE 504             /* minimum size of a block */
  57 #undef  DEFINE_OPTIONS
  58 #define DEFINE_OPTIONS
  59 #undef  OUTBUFSIZ
  60 #define OUTBUFSIZ BUFSIZ
  61 #undef  BLOCK_OUT
  62 #define BLOCK_OUT -2            /* output to a fixed block of memory */
  63 #undef  MEM_OUT
  64 #define MEM_OUT -3              /* output to dynamically allocated memory */
  65 #undef  OUTPUT_ERR
  66 #define OUTPUT_ERR 01           /* error occurred on output */
  67 #undef  TEMPSIZE
  68 #define TEMPSIZE 24
  69 #undef  HAVE_VASPRINTF
  70 #define HAVE_VASPRINTF 1
  71 #undef  EOFMARKLEN
  72 #define EOFMARKLEN 79
  73 #undef  OPENBRACE
  74 #define OPENBRACE '{'
  75 #undef  CLOSEBRACE
  76 #define CLOSEBRACE '}'
  77 #undef  EMPTY
  78 #define EMPTY -2                /* marks an unused slot in redirtab */
  79 #undef  S_DFL
  80 #define S_DFL 1                 /* default signal handling (SIG_DFL) */
  81 #undef  S_CATCH
  82 #define S_CATCH 2               /* signal is caught */
  83 #undef  S_IGN
  84 #define S_IGN 3                 /* signal is ignored (SIG_IGN) */
  85 #undef  S_HARD_IGN
  86 #define S_HARD_IGN 4            /* signal is ignored permenantly */
  87 #undef  S_RESET
  88 #define S_RESET 5               /* temporary - to reset a hard ignored sig */
  89 #undef  INCL_BASE
  90 #define INCL_BASE
  91 #undef  LIBPATHSTRICT
  92 #define LIBPATHSTRICT 3
  93 #undef  QHINF_EXEINFO
  94 #define QHINF_EXEINFO       1 /* NE exeinfo. */
  95 #undef  QHINF_READRSRCTBL
  96 #define QHINF_READRSRCTBL   2 /* Reads from the resource table. */
  97 #undef  QHINF_READFILE
  98 #define QHINF_READFILE      3 /* Reads from the executable file. */
  99 #undef  QHINF_LIBPATHLENGTH
 100 #define QHINF_LIBPATHLENGTH 4 /* Gets the libpath length. */
 101 #undef  QHINF_LIBPATH
 102 #define QHINF_LIBPATH       5 /* Gets the entire libpath. */
 103 #undef  QHINF_FIXENTRY
 104 #define QHINF_FIXENTRY      6 /* NE only */
 105 #undef  QHINF_STE
 106 #define QHINF_STE           7 /* NE only */
 107 #undef  QHINF_MAPSEL
 108 #define QHINF_MAPSEL        8 /* NE only */
 109 #undef  VTABSIZE
 110 #define VTABSIZE 39
 111 #undef  VTABSIZE
 112 #define VTABSIZE 517
 113 #undef  main
 114 #define main echocmd
 115 #undef  main
 116 #define main killcmd
 117
 118
 119
 120 extern void rmaliases(void);
 121
 122 extern int loopnest;            /* current loop nesting level */
 123
 124 extern void deletefuncs(void);
 125 extern void hash_special_builtins(void);
 126
 127 struct strpush {
 128         struct strpush *prev;   /* preceding string on stack */
 129         char *prevstring;
 130         int prevnleft;
 131         int prevlleft;
 132         struct alias *ap;       /* if push was associated with an alias */
 133 };
 134
 135 struct parsefile {
 136         struct parsefile *prev; /* preceding file on stack */
 137         int linno;              /* current line */
 138         int fd;                 /* file descriptor (or -1 if string) */
 139         int nleft;              /* number of chars left in this line */
 140         int lleft;              /* number of chars left in this buffer */
 141         char *nextc;            /* next char in buffer */
 142         char *buf;              /* input buffer */
 143         struct strpush *strpush; /* for pushing strings at this level */
 144         struct strpush basestrpush; /* so pushing one is fast */
 145 };
 146
 147 extern int parselleft;          /* copy of parsefile->lleft */
 148 extern struct parsefile basepf; /* top level input file */
 149 extern char basebuf[BUFSIZ];    /* buffer for top level input file */
 150
 151 extern pid_t backgndpid;        /* pid of last background process */
 152 extern int jobctl;
 153
 154 extern int tokpushback;         /* last token pushed back */
 155 extern int checkkwd;            /* 1 == check for kwds, 2 == also eat newlines */
 156
 157 struct redirtab {
 158         struct redirtab *next;
 159         short renamed[10];
 160 };
 161
 162 extern struct redirtab *redirlist;
 163
 164 extern char sigmode[NSIG];      /* current value of signal */
 165
 166 extern char **environ;
 167
 168
 169
 170 /*
 171  * Initialization code.
 172  */
 173
 174 void
 175 init() {
 176
 177       /* from exec.c: */
 178       {
 179               hash_special_builtins();
 180       }
 181
 182       /* from input.c: */
 183       {
 184               basepf.nextc = basepf.buf = basebuf;
 185       }
 186
 187       /* from var.c: */
 188       {
 189               char **envp;
 190
 191               initvar();
 192               for (envp = environ ; *envp ; envp++) {
 193                       if (strchr(*envp, '=')) {
 194                               setvareq(*envp, VEXPORT|VTEXTFIXED);
 195                       }
 196               }
 197       }
 198 }
 199
 200
 201
 202 /*
 203  * This routine is called when an error or an interrupt occurs in an
 204  * interactive shell and control is returned to the main command loop.
 205  */
 206
 207 void
 208 reset() {
 209
 210       /* from eval.c: */
 211       {
 212               evalskip = 0;
 213               loopnest = 0;
 214               funcnest = 0;
 215       }
 216
 217       /* from input.c: */
 218       {
 219               if (exception != EXSHELLPROC)
 220                       parselleft = parsenleft = 0;      /* clear input buffer */
 221               popallfiles();
 222       }
 223
 224       /* from output.c: */
 225       {
 226               out1 = &output;
 227               out2 = &errout;
 228               if (memout.buf != NULL) {
 229                       ckfree(memout.buf);
 230                       memout.buf = NULL;
 231               }
 232       }
 233
 234       /* from parser.c: */
 235       {
 236               tokpushback = 0;
 237               checkkwd = 0;
 238       }
 239
 240       /* from redir.c: */
 241       {
 242               while (redirlist)
 243                       popredir();
 244       }
 245 }
 246
 247
 248
 249 /*
 250  * This routine is called to initialize the shell to run a shell procedure.
 251  */
 252
 253 void
 254 initshellproc() {
 255
 256       /* from alias.c: */
 257       {
 258               rmaliases();
 259       }
 260
 261       /* from eval.c: */
 262       {
 263               exitstatus = 0;
 264       }
 265
 266       /* from exec.c: */
 267       {
 268               deletefuncs();
 269       }
 270
 271       /* from input.c: */
 272       {
 273               popallfiles();
 274       }
 275
 276       /* from jobs.c: */
 277       {
 278               backgndpid = -1;
 279 #if JOBS
 280               jobctl = 0;
 281 #endif
 282       }
 283
 284       /* from options.c: */
 285       {
 286               int i;
 287
 288               for (i = 0; optlist[i].name; i++)
 289                       optlist[i].val = 0;
 290               optschanged();
 291
 292       }
 293
 294       /* from redir.c: */
 295       {
 296               clearredir(0);
 297       }
 298
 299       /* from trap.c: */
 300       {
 301               char *sm;
 302
 303               clear_traps(0);
 304               for (sm = sigmode ; sm < sigmode + NSIG ; sm++) {
 305                       if (*sm == S_IGN)
 306                               *sm = S_HARD_IGN;
 307               }
 308       }
 309
 310       /* from var.c: */
 311       {
 312               shprocvar();
 313       }
 314 }