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