| 1 | /* defs.h 4.2 83/06/10 */ |
| 2 | |
| 3 | # |
| 4 | /* |
| 5 | * UNIX shell |
| 6 | */ |
| 7 | |
| 8 | /* error exits from various parts of shell */ |
| 9 | #define ERROR 1 |
| 10 | #define SYNBAD 2 |
| 11 | #define SIGFAIL 3 |
| 12 | #define SIGFLG 0200 |
| 13 | |
| 14 | /* command tree */ |
| 15 | #define FPRS 020 |
| 16 | #define FINT 040 |
| 17 | #define FAMP 0100 |
| 18 | #define FPIN 0400 |
| 19 | #define FPOU 01000 |
| 20 | #define FPCL 02000 |
| 21 | #define FCMD 04000 |
| 22 | #define COMMSK 017 |
| 23 | |
| 24 | #define TCOM 0 |
| 25 | #define TPAR 1 |
| 26 | #define TFIL 2 |
| 27 | #define TLST 3 |
| 28 | #define TIF 4 |
| 29 | #define TWH 5 |
| 30 | #define TUN 6 |
| 31 | #define TSW 7 |
| 32 | #define TAND 8 |
| 33 | #define TORF 9 |
| 34 | #define TFORK 10 |
| 35 | #define TFOR 11 |
| 36 | |
| 37 | /* execute table */ |
| 38 | #define SYSSET 1 |
| 39 | #define SYSCD 2 |
| 40 | #define SYSEXEC 3 |
| 41 | #define SYSLOGIN 4 |
| 42 | #define SYSTRAP 5 |
| 43 | #define SYSEXIT 6 |
| 44 | #define SYSSHFT 7 |
| 45 | #define SYSWAIT 8 |
| 46 | #define SYSCONT 9 |
| 47 | #define SYSBREAK 10 |
| 48 | #define SYSEVAL 11 |
| 49 | #define SYSDOT 12 |
| 50 | #define SYSRDONLY 13 |
| 51 | #define SYSTIMES 14 |
| 52 | #define SYSXPORT 15 |
| 53 | #define SYSNULL 16 |
| 54 | #define SYSREAD 17 |
| 55 | #define SYSTST 18 |
| 56 | #define SYSUMASK 19 |
| 57 | |
| 58 | /* used for input and output of shell */ |
| 59 | #define INIO 10 |
| 60 | #define OTIO 11 |
| 61 | |
| 62 | /*io nodes*/ |
| 63 | #define USERIO 10 |
| 64 | #define IOUFD 15 |
| 65 | #define IODOC 16 |
| 66 | #define IOPUT 32 |
| 67 | #define IOAPP 64 |
| 68 | #define IOMOV 128 |
| 69 | #define IORDW 256 |
| 70 | #define INPIPE 0 |
| 71 | #define OTPIPE 1 |
| 72 | |
| 73 | /* arg list terminator */ |
| 74 | #define ENDARGS 0 |
| 75 | |
| 76 | #include "mac.h" |
| 77 | #include "mode.h" |
| 78 | #include "name.h" |
| 79 | |
| 80 | |
| 81 | /* result type declarations */ |
| 82 | #define alloc malloc |
| 83 | ADDRESS alloc(); |
| 84 | VOID addblok(); |
| 85 | STRING make(); |
| 86 | STRING movstr(); |
| 87 | TREPTR cmd(); |
| 88 | TREPTR makefork(); |
| 89 | NAMPTR lookup(); |
| 90 | VOID setname(); |
| 91 | VOID setargs(); |
| 92 | DOLPTR useargs(); |
| 93 | REAL expr(); |
| 94 | STRING catpath(); |
| 95 | STRING getpath(); |
| 96 | STRING *scan(); |
| 97 | STRING mactrim(); |
| 98 | STRING macro(); |
| 99 | STRING execs(); |
| 100 | VOID await(); |
| 101 | VOID post(); |
| 102 | STRING copyto(); |
| 103 | VOID exname(); |
| 104 | STRING staknam(); |
| 105 | VOID printnam(); |
| 106 | VOID printflg(); |
| 107 | VOID prs(); |
| 108 | VOID prc(); |
| 109 | VOID getenv(); |
| 110 | STRING *setenv(); |
| 111 | |
| 112 | #define attrib(n,f) (n->namflg |= f) |
| 113 | #define round(a,b) (((int)((ADR(a)+b)-1))&~((b)-1)) |
| 114 | #define closepipe(x) (close(x[INPIPE]), close(x[OTPIPE])) |
| 115 | #define eq(a,b) (cf(a,b)==0) |
| 116 | #define max(a,b) ((a)>(b)?(a):(b)) |
| 117 | #define assert(x) ; |
| 118 | |
| 119 | /* temp files and io */ |
| 120 | UFD output; |
| 121 | INT ioset; |
| 122 | IOPTR iotemp; /* files to be deleted sometime */ |
| 123 | IOPTR iopend; /* documents waiting to be read at NL */ |
| 124 | |
| 125 | /* substitution */ |
| 126 | INT dolc; |
| 127 | STRING *dolv; |
| 128 | DOLPTR argfor; |
| 129 | ARGPTR gchain; |
| 130 | |
| 131 | /* stack */ |
| 132 | #define BLK(x) ((BLKPTR)(x)) |
| 133 | #define BYT(x) ((BYTPTR)(x)) |
| 134 | #define STK(x) ((STKPTR)(x)) |
| 135 | #define ADR(x) ((char*)(x)) |
| 136 | |
| 137 | /* stak stuff */ |
| 138 | #include "stak.h" |
| 139 | |
| 140 | /* string constants */ |
| 141 | MSG atline; |
| 142 | MSG readmsg; |
| 143 | MSG colon; |
| 144 | MSG minus; |
| 145 | MSG nullstr; |
| 146 | MSG sptbnl; |
| 147 | MSG unexpected; |
| 148 | MSG endoffile; |
| 149 | MSG synmsg; |
| 150 | |
| 151 | /* name tree and words */ |
| 152 | SYSTAB reserved; |
| 153 | INT wdval; |
| 154 | INT wdnum; |
| 155 | ARGPTR wdarg; |
| 156 | INT wdset; |
| 157 | BOOL reserv; |
| 158 | |
| 159 | /* prompting */ |
| 160 | MSG stdprompt; |
| 161 | MSG supprompt; |
| 162 | MSG profile; |
| 163 | |
| 164 | /* built in names */ |
| 165 | NAMNOD fngnod; |
| 166 | NAMNOD ifsnod; |
| 167 | NAMNOD homenod; |
| 168 | NAMNOD mailnod; |
| 169 | NAMNOD pathnod; |
| 170 | NAMNOD ps1nod; |
| 171 | NAMNOD ps2nod; |
| 172 | |
| 173 | /* special names */ |
| 174 | MSG flagadr; |
| 175 | STRING cmdadr; |
| 176 | STRING exitadr; |
| 177 | STRING dolladr; |
| 178 | STRING pcsadr; |
| 179 | STRING pidadr; |
| 180 | |
| 181 | MSG defpath; |
| 182 | |
| 183 | /* names always present */ |
| 184 | MSG mailname; |
| 185 | MSG homename; |
| 186 | MSG pathname; |
| 187 | MSG fngname; |
| 188 | MSG ifsname; |
| 189 | MSG ps1name; |
| 190 | MSG ps2name; |
| 191 | |
| 192 | /* transput */ |
| 193 | CHAR tmpout[]; |
| 194 | STRING tmpnam; |
| 195 | INT serial; |
| 196 | #define TMPNAM 7 |
| 197 | FILE standin; |
| 198 | #define input (standin->fdes) |
| 199 | #define eof (standin->feof) |
| 200 | INT peekc; |
| 201 | STRING comdiv; |
| 202 | MSG devnull; |
| 203 | |
| 204 | /* flags */ |
| 205 | #define noexec 01 |
| 206 | #define intflg 02 |
| 207 | #define prompt 04 |
| 208 | #define setflg 010 |
| 209 | #define errflg 020 |
| 210 | #define ttyflg 040 |
| 211 | #define forked 0100 |
| 212 | #define oneflg 0200 |
| 213 | #define rshflg 0400 |
| 214 | #define waiting 01000 |
| 215 | #define stdflg 02000 |
| 216 | #define execpr 04000 |
| 217 | #define readpr 010000 |
| 218 | #define keyflg 020000 |
| 219 | INT flags; |
| 220 | |
| 221 | /* error exits from various parts of shell */ |
| 222 | #include <setjmp.h> |
| 223 | jmp_buf subshell; |
| 224 | jmp_buf errshell; |
| 225 | jmp_buf INTbuf; |
| 226 | |
| 227 | /* fault handling */ |
| 228 | #include "brkincr.h" |
| 229 | POS brkincr; |
| 230 | |
| 231 | #define MINTRAP 0 |
| 232 | #define MAXTRAP 17 |
| 233 | |
| 234 | #define INTR 2 |
| 235 | #define QUIT 3 |
| 236 | #define MEMF 11 |
| 237 | #define ALARM 14 |
| 238 | #define KILL 15 |
| 239 | #define TRAPSET 2 |
| 240 | #define SIGSET 4 |
| 241 | #define SIGMOD 8 |
| 242 | |
| 243 | VOID fault(); |
| 244 | BOOL trapnote; |
| 245 | STRING trapcom[]; |
| 246 | BOOL trapflg[]; |
| 247 | BOOL trapjmp[]; |
| 248 | |
| 249 | /* name tree and words */ |
| 250 | STRING *environ; |
| 251 | CHAR numbuf[]; |
| 252 | MSG export; |
| 253 | MSG readonly; |
| 254 | |
| 255 | /* execflgs */ |
| 256 | INT exitval; |
| 257 | BOOL execbrk; |
| 258 | INT loopcnt; |
| 259 | INT breakcnt; |
| 260 | |
| 261 | /* messages */ |
| 262 | MSG mailmsg; |
| 263 | MSG coredump; |
| 264 | MSG badopt; |
| 265 | MSG badparam; |
| 266 | MSG badsub; |
| 267 | MSG nospace; |
| 268 | MSG notfound; |
| 269 | MSG badtrap; |
| 270 | MSG baddir; |
| 271 | MSG badshift; |
| 272 | MSG illegal; |
| 273 | MSG restricted; |
| 274 | MSG execpmsg; |
| 275 | MSG notid; |
| 276 | MSG wtfailed; |
| 277 | MSG badcreate; |
| 278 | MSG piperr; |
| 279 | MSG badopen; |
| 280 | MSG badnum; |
| 281 | MSG arglist; |
| 282 | MSG txtbsy; |
| 283 | MSG toobig; |
| 284 | MSG badexec; |
| 285 | MSG notfound; |
| 286 | MSG badfile; |
| 287 | |
| 288 | address end[]; |
| 289 | |
| 290 | #include "ctype.h" |
| 291 | |