1 #include <u.h>
2 #include <libc.h>
3 #include <fcall.h>
4 
5 static uint dumpsome(char*, char*, char*, long);
6 static void fdirconv(char*, char*, Dir*);
7 static char *qidtype(char*, uchar);
8 
9 #define	QIDFMT	"(%.16llux %lud %s)"
10 
11 int
12 fcallfmt(Fmt *fmt)
13 {
14 	Fcall *f;
15 	int fid, type, tag, i;
16 	char buf[512], tmp[200];
17 	char *p, *e;
18 	Dir *d;
19 	Qid *q;
20 
21 	e = buf+sizeof(buf);
22 	f = va_arg(fmt->args, Fcall*);
23 	type = f->type;
24 	fid = f->fid;
25 	tag = f->tag;
26 	switch(type){
27 	case Tversion:	/* 100 */
28 		seprint(buf, e, "Tversion tag %ud msize %ud version '%s'", tag, f->msize, f->version);
29 		break;
30 	case Rversion:
31 		seprint(buf, e, "Rversion tag %ud msize %ud version '%s'", tag, f->msize, f->version);
32 		break;
33 	case Tauth:	/* 102 */
34 		seprint(buf, e, "Tauth tag %ud afid %d uname %s aname %s", tag,
35 			f->afid, f->uname, f->aname);
36 		break;
37 	case Rauth:
38 		seprint(buf, e, "Rauth tag %ud qid " QIDFMT, tag,
39 			f->aqid.path, f->aqid.vers, qidtype(tmp, f->aqid.type));
40 		break;
41 	case Tattach:	/* 104 */
42 		seprint(buf, e, "Tattach tag %ud fid %d afid %d uname %s aname %s", tag,
43 			fid, f->afid, f->uname, f->aname);
44 		break;
45 	case Rattach:
46 		seprint(buf, e, "Rattach tag %ud qid " QIDFMT, tag,
47 			f->qid.path, f->qid.vers, qidtype(tmp, f->qid.type));
48 		break;
49 	case Rerror:	/* 107; 106 (Terror) illegal */
50 		seprint(buf, e, "Rerror tag %ud ename %s", tag, f->ename);
51 		break;
52 	case Tflush:	/* 108 */
53 		seprint(buf, e, "Tflush tag %ud oldtag %ud", tag, f->oldtag);
54 		break;
55 	case Rflush:
56 		seprint(buf, e, "Rflush tag %ud", tag);
57 		break;
58 	case Twalk:	/* 110 */
59 		p = seprint(buf, e, "Twalk tag %ud fid %d newfid %d nwname %d ", tag, fid, f->newfid, f->nwname);
60 		if(f->nwname <= MAXWELEM)
61 			for(i=0; i<f->nwname; i++)
62 				p = seprint(p, e, "%d:%s ", i, f->wname[i]);
63 		break;
64 	case Rwalk:
65 		p = seprint(buf, e, "Rwalk tag %ud nwqid %ud ", tag, f->nwqid);
66 		if(f->nwqid <= MAXWELEM)
67 			for(i=0; i<f->nwqid; i++){
68 				q = &f->wqid[i];
69 				p = seprint(p, e, "%d:" QIDFMT " ", i,
70 					q->path, q->vers, qidtype(tmp, q->type));
71 			}
72 		break;
73 	case Topen:	/* 112 */
74 		seprint(buf, e, "Topen tag %ud fid %ud mode %d", tag, fid, f->mode);
75 		break;
76 	case Ropen:
77 		seprint(buf, e, "Ropen tag %ud qid " QIDFMT " iounit %ud", tag,
78 			f->qid.path, f->qid.vers, qidtype(tmp, f->qid.type), f->iounit);
79 		break;
80 	case Topenfd:	/* 98 */
81 		seprint(buf, e, "Topenfd tag %ud fid %ud mode %d", tag, fid, f->mode);
82 		break;
83 	case Ropenfd:
84 		seprint(buf, e, "Ropenfd tag %ud qid " QIDFMT " iounit %ud unixfd %d", tag,
85 			f->qid.path, f->qid.vers, qidtype(tmp, f->qid.type), f->iounit, f->unixfd);
86 		break;
87 	case Tcreate:	/* 114 */
88 		seprint(buf, e, "Tcreate tag %ud fid %ud name %s perm %M mode %d", tag, fid, f->name, (ulong)f->perm, f->mode);
89 		break;
90 	case Rcreate:
91 		seprint(buf, e, "Rcreate tag %ud qid " QIDFMT " iounit %ud ", tag,
92 			f->qid.path, f->qid.vers, qidtype(tmp, f->qid.type), f->iounit);
93 		break;
94 	case Tread:	/* 116 */
95 		seprint(buf, e, "Tread tag %ud fid %d offset %lld count %ud",
96 			tag, fid, f->offset, f->count);
97 		break;
98 	case Rread:
99 		p = seprint(buf, e, "Rread tag %ud count %ud ", tag, f->count);
100 			dumpsome(p, e, f->data, f->count);
101 		break;
102 	case Twrite:	/* 118 */
103 		p = seprint(buf, e, "Twrite tag %ud fid %d offset %lld count %ud ",
104 			tag, fid, f->offset, f->count);
105 		dumpsome(p, e, f->data, f->count);
106 		break;
107 	case Rwrite:
108 		seprint(buf, e, "Rwrite tag %ud count %ud", tag, f->count);
109 		break;
110 	case Tclunk:	/* 120 */
111 		seprint(buf, e, "Tclunk tag %ud fid %ud", tag, fid);
112 		break;
113 	case Rclunk:
114 		seprint(buf, e, "Rclunk tag %ud", tag);
115 		break;
116 	case Tremove:	/* 122 */
117 		seprint(buf, e, "Tremove tag %ud fid %ud", tag, fid);
118 		break;
119 	case Rremove:
120 		seprint(buf, e, "Rremove tag %ud", tag);
121 		break;
122 	case Tstat:	/* 124 */
123 		seprint(buf, e, "Tstat tag %ud fid %ud", tag, fid);
124 		break;
125 	case Rstat:
126 		p = seprint(buf, e, "Rstat tag %ud ", tag);
127 		if(f->stat == nil || f->nstat > sizeof tmp)
128 			seprint(p, e, " stat(%d bytes)", f->nstat);
129 		else{
130 			d = (Dir*)tmp;
131 			convM2D(f->stat, f->nstat, d, (char*)(d+1));
132 			seprint(p, e, " stat ");
133 			fdirconv(p+6, e, d);
134 		}
135 		break;
136 	case Twstat:	/* 126 */
137 		p = seprint(buf, e, "Twstat tag %ud fid %ud", tag, fid);
138 		if(f->stat == nil || f->nstat > sizeof tmp)
139 			seprint(p, e, " stat(%d bytes)", f->nstat);
140 		else{
141 			d = (Dir*)tmp;
142 			convM2D(f->stat, f->nstat, d, (char*)(d+1));
143 			seprint(p, e, " stat ");
144 			fdirconv(p+6, e, d);
145 		}
146 		break;
147 	case Rwstat:
148 		seprint(buf, e, "Rwstat tag %ud", tag);
149 		break;
150 	default:
151 		seprint(buf, e,  "unknown type %d", type);
152 	}
153 	return fmtstrcpy(fmt, buf);
154 }
155 
156 static char*
157 qidtype(char *s, uchar t)
158 {
159 	char *p;
160 
161 	p = s;
162 	if(t & QTDIR)
163 		*p++ = 'd';
164 	if(t & QTAPPEND)
165 		*p++ = 'a';
166 	if(t & QTEXCL)
167 		*p++ = 'l';
168 	if(t & QTAUTH)
169 		*p++ = 'A';
170 	*p = '\0';
171 	return s;
172 }
173 
174 int
175 dirfmt(Fmt *fmt)
176 {
177 	char buf[160];
178 
179 	fdirconv(buf, buf+sizeof buf, va_arg(fmt->args, Dir*));
180 	return fmtstrcpy(fmt, buf);
181 }
182 
183 static void
184 fdirconv(char *buf, char *e, Dir *d)
185 {
186 	char tmp[16];
187 
188 	seprint(buf, e, "'%s' '%s' '%s' '%s' "
189 		"q " QIDFMT " m %#luo "
190 		"at %ld mt %ld l %lld "
191 		"t %d d %d",
192 			d->name, d->uid, d->gid, d->muid,
193 			d->qid.path, d->qid.vers, qidtype(tmp, d->qid.type), d->mode,
194 			d->atime, d->mtime, d->length,
195 			d->type, d->dev);
196 }
197 
198 /*
199  * dump out count (or DUMPL, if count is bigger) bytes from
200  * buf to ans, as a string if they are all printable,
201  * else as a series of hex bytes
202  */
203 #define DUMPL 64
204 
205 static uint
206 dumpsome(char *ans, char *e, char *buf, long count)
207 {
208 	int i, printable;
209 	char *p;
210 
211 	if(buf == nil){
212 		seprint(ans, e, "<no data>");
213 		return strlen(ans);
214 	}
215 	printable = 1;
216 	if(count > DUMPL)
217 		count = DUMPL;
218 	for(i=0; i<count && printable; i++)
219 		if((buf[i]!=0 && buf[i]<32) || (uchar)buf[i]>127)
220 			printable = 0;
221 	p = ans;
222 	*p++ = '\'';
223 	if(printable){
224 		if(2*count > e-p-2)
225 			count = (e-p-2)/2;
226 		for(i=0; i<count; i++){
227 			if(buf[i] == 0){
228 				*p++ = '\\';
229 				*p++ = '0';
230 			}else if(buf[i] == '\t'){
231 				*p++ = '\\';
232 				*p++ = 't';
233 			}else if(buf[i] == '\n'){
234 				*p++ = '\\';
235 				*p++ = 'n';
236 			}else
237 				*p++ = buf[i];
238 		}
239 	}else{
240 		if(2*count > e-p-2)
241 			count = (e-p-2)/2;
242 		for(i=0; i<count; i++){
243 			if(i>0 && i%4==0)
244 				*p++ = ' ';
245 			sprint(p, "%2.2ux", (uchar)buf[i]);
246 			p += 2;
247 		}
248 	}
249 	*p++ = '\'';
250 	*p = 0;
251 	assert(p < e);
252 	return p - ans;
253 }