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1.1 root 1: /*
2: * master devices file:
3: * name tag [stuff]
4: */
5:
6: #include <fio.h>
7: #include <libc.h>
8: #include <ctype.h>
9: #include "mkconf.h"
10:
11: #define BIGARGS 30
12:
13: readdevs(f)
14: char *f;
15: {
16: int fd;
17: register char *p;
18: char *args[BIGARGS];
19: register int n;
20: register Mdev *mp;
21: register int i;
22:
23: if ((fd = open(f, 0)) < 0) {
24: perror(f);
25: exit(1);
26: }
27: while ((p = Frdline(fd)) != NULL) {
28: while (isspace(*p))
29: p++;
30: if (*p == '#' || *p == 0)
31: continue;
32: if ((n = crack(p, args, BIGARGS)) < 2) {
33: fprint(STDERR, "%s: bad line ignored: %s\n", f, p);
34: errs++;
35: continue;
36: }
37: if ((mp = (Mdev *)ealloc(sizeof(Mdev))) == NULL) {
38: fprint(STDERR, "out of memory\n");
39: exit(1);
40: }
41: mp->name = estrdup(args[0]);
42: mp->tag = estrdup(args[1]);
43: mp->atype = ANONE;
44: mp->adptype = ANONE;
45: mp->nvec = 1;
46: mp->rept = 1;
47: mp->flags = 0;
48: for (i = 0; i < NSTR; i++) {
49: mp->strs[i] = 0;
50: mp->fstrs[i] = 0;
51: }
52: mdflags(mp, &args[2], n - 2);
53: if (badmdev(mp)) {
54: free((char *)mp);
55: errs++;
56: continue;
57: }
58: mp->next = mlist;
59: mlist = mp;
60: }
61: close(fd);
62: }
63:
64: badmdev(mp)
65: register Mdev *mp;
66: {
67: /* various consistency checks here */
68: return (0);
69: }
70:
71: mdflags(mp, a, n)
72: register Mdev *mp;
73: register char **a;
74: register int n;
75: {
76: register int i;
77:
78: for (; --n >= 0; a++) {
79: /*
80: * address types: mine or the bus i control
81: */
82: if (strcmp(*a, "sbi") == 0)
83: mp->atype = ASBI;
84: else if (strcmp(*a, "sbia") == 0)
85: mp->adptype = ASBI;
86: else if (strcmp(*a, "vaxbi") == 0)
87: mp->atype = AVBI;
88: else if (strcmp(*a, "vaxbia") == 0)
89: mp->adptype = AVBI;
90: else if (strcmp(*a, "mb") == 0)
91: mp->atype = AMBA;
92: else if (strcmp(*a, "mba") == 0)
93: mp->adptype = AMBA;
94: else if (strcmp(*a, "ub") == 0)
95: mp->atype = AUBA;
96: else if (strcmp(*a, "uba") == 0)
97: mp->adptype = AUBA;
98: else if (strcmp(*a, "sub") == 0)
99: mp->atype = ASUB;
100: else if (strcmp(*a, "count") == 0)
101: mp->atype = ACNT;
102: else if (strcmp(*a, "param") == 0)
103: mp->atype = APARAM;
104: else if (strcmp(*a, "mscp") == 0)
105: mp->atype = AMSCP;
106: else if (strcmp(*a, "mscpa") == 0)
107: mp->adptype = AMSCP;
108: else if (strcmp(*a, "nobus") == 0)
109: mp->atype = ANOBUS;
110: /*
111: * hacks
112: */
113: else if (strcmp(*a, "vec") == 0) {
114: if (--n < 0) {
115: fprint(STDERR, "%s: vec what?\n", mp->name);
116: errs++;
117: continue;
118: }
119: mp->nvec = atoi(*++a);
120: } else if (strcmp(*a, "rep") == 0) {
121: if (--n < 0) {
122: fprint(STDERR, "%s: rep what?\n", mp->name);
123: errs++;
124: continue;
125: }
126: mp->rept = atoi(*++a);
127: } else if (strcmp(*a, "dupok") == 0)
128: mp->flags |= FDUPOK;
129: else if (strcmp(*a, "rawvec") == 0)
130: mp->flags |= FRAWVEC;
131: /*
132: * structures, includes
133: */
134: else if (strcmp(*a, "data") == 0) {
135: i = mddata(mp, a, n);
136: a += i;
137: n -= i;
138: } else if (strcmp(*a, "inc") == 0) {
139: i = mdincl(mp, a, n);
140: a += i;
141: n -= i;
142: } else {
143: fprint(STDERR, "%s: unknown arg %s\n", mp->name, *a);
144: errs++;
145: }
146: }
147: }
148:
149: int
150: mddata(mp, a, n)
151: register Mdev *mp;
152: register char **a;
153: int n;
154: {
155: register int i;
156: char buf[80];
157: register char *p, *q;
158: register int xn;
159: int c;
160:
161: i = 0;
162: xn = n - 1;
163: ++a; /* skip "data" */
164: while (xn >= 0) {
165: q = buf;
166: do {
167: p = *a++;
168: while ((*q++ = *p++) != 0)
169: ;
170: q[-1] = ' ';
171: } while (--xn >= 0 && q[-2] != ';' && q[-2] != ',');
172: *--q = 0; /* smash last blank */
173: c = q[-1];
174: if (c == ';' || c == ',')
175: *--q = 0;
176: if (i < NSTR-1)
177: mp->strs[i++] = estrdup(buf);
178: else {
179: fprint(STDERR, "%s: too much data\n", mp->name);
180: errs++;
181: }
182: if (c == ';')
183: break;
184: }
185: return (n - xn - 1);
186: }
187:
188: Include *inclist;
189:
190: int
191: mdincl(mp, a, n)
192: Mdev *mp;
193: register char **a;
194: int n;
195: {
196: register int xn;
197: register Include *ip, *jp;
198: register char *p;
199: Include *bjp;
200: char *s;
201: int last;
202:
203: xn = n;
204: a++; /* skip "inc" */
205: last = 0;
206: while (last == 0 && --xn >= 0) {
207: s = *a++;
208: for (p = s; *p; p++)
209: ;
210: if (*--p == ';') {
211: *p = 0;
212: last = 1;
213: }
214: bjp = NULL;
215: for (jp = inclist; jp; bjp = jp, jp = jp->next)
216: if (strcmp(jp->incl, s) == 0)
217: break;
218: ip = (Include *)ealloc(sizeof(Include));
219: ip->inuse = 0;
220: ip->dev = mp;
221: if (jp)
222: ip->incl = jp->incl;
223: else
224: ip->incl = estrdup(s);
225: if (bjp) {
226: ip->next = bjp->next;
227: bjp->next = ip;
228: }
229: else {
230: ip->next = inclist;
231: inclist = ip;
232: }
233: }
234: return (n - xn);
235: }
236:
237: incfix(dp)
238: Dev *dp;
239: {
240: register Mdev *mp;
241: register Include *ip;
242:
243: mp = dp->mdev;
244: for (ip = inclist; ip; ip = ip->next)
245: if (ip->dev == mp)
246: ip->inuse = 1;
247: }
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