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