File: node.c

package info (click to toggle)
lsof 4.91+dfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 4,984 kB
  • sloc: ansic: 68,893; sh: 6,862; makefile: 1,682; perl: 1,099; awk: 214
file content (258 lines) | stat: -rw-r--r-- 5,570 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
/*
 * node.c - common node reading functions for lsof
 */


/*
 * Copyright 1994 Purdue Research Foundation, West Lafayette, Indiana
 * 47907.  All rights reserved.
 *
 * Written by Victor A. Abell
 *
 * This software is not subject to any license of the American Telephone
 * and Telegraph Company or the Regents of the University of California.
 *
 * Permission is granted to anyone to use this software for any purpose on
 * any computer system, and to alter it and redistribute it freely, subject
 * to the following restrictions:
 *
 * 1. Neither the authors nor Purdue University are responsible for any
 *    consequences of the use of this software.
 *
 * 2. The origin of this software must not be misrepresented, either by
 *    explicit claim or by omission.  Credit to the authors and Purdue
 *    University must appear in documentation and sources.
 *
 * 3. Altered versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 *
 * 4. This notice may not be removed or altered.
 */

#ifndef lint
static char copyright[] =
"@(#) Copyright 1994 Purdue Research Foundation.\nAll rights reserved.\n";
static char *rcsid = "$Id: node.c,v 1.5 2000/08/01 17:08:05 abe Exp $";
#endif


#include "lsof.h"


/*
 * print_kptr() - print kernel pointer
 */

char *
print_kptr(kp, buf, bufl)
	KA_T kp;			/* kernel pointer address */
	char *buf;			/* optional destination buffer */
	size_t bufl;			/* size of buf[] */
{
	static char dbuf[32];

	(void) snpf(buf ? buf : dbuf,
		    buf ? bufl : sizeof(dbuf),
		    KA_T_FMT_X, kp);
	return(buf ? buf : dbuf);
}


#if	defined(HASCDRNODE)
/*
 * readcdrnode() - read CD-ROM node
 */

int
readcdrnode(ca, c)
	KA_T ca;			/* cdrnode kernel address */
	struct cdrnode *c;		/* cdrnode buffer */
{
	if (kread((KA_T)ca, (char *)c, sizeof(struct cdrnode))) {
	    (void) snpf(Namech, Namechl, "can't read cdrnode at %s",
		print_kptr(ca, (char *)NULL, 0));
	    return(1);
	}
	return(0);
}
#endif	/* defined(HASCDRNODE) */


#if	defined(HASFIFONODE)
/*
 * readfifonode() - read fifonode
 */

int
readfifonode(fa, f)
	KA_T fa;			/* fifonode kernel address */
	struct fifonode *f;		/* fifonode buffer */
{
	if (kread((KA_T)fa, (char *)f, sizeof(struct fifonode))) {
	    (void) snpf(Namech, Namechl, "can't read fifonode at %s",
		print_kptr(fa, (char *)NULL, 0));
	    return(1);
	}
	return(0);
}
#endif	/* defined(HASFIFONODE) */


#if	defined(HASGNODE)
/*
 * readgnode() - read gnode
 */

int
readgnode(ga, g)
	KA_T ga;			/* gnode kernel address */
	struct gnode *g;		/* gnode buffer */
{
	if (kread((KA_T)ga, (char *)g, sizeof(struct gnode))) {
	    (void) snpf(Namech, Namechl, "can't read gnode at %s",
		print_kptr(ga, (char *)NULL, 0));
	    return(1);
	}
	return(0);
}
#endif	/* defined(HASGNODE) */


#if	defined(HASHSNODE)
/*
 * readhsnode() - read High Sierra file system node
 */

int
readhsnode(ha, h)
	KA_T ha;			/* hsnode kernel address */
	struct hsnode *h;		/* hsnode buffer */
{
	if (kread((KA_T)ha, (char *)h, sizeof(struct hsnode))) {
	    (void) snpf(Namech, Namechl, "can't read hsnode at %s",
		print_kptr(ha, (char *)NULL, 0));
	    return(1);
	}
	return(0);
}
#endif	/* defined(HASHSNODE) */


#if	defined(HASINODE)
/*
 * readinode() - read inode
 */

int
readinode(ia, i)
	KA_T ia;			/* inode kernel address */
	struct inode *i;		/* inode buffer */
{
	if (kread((KA_T)ia, (char *)i, sizeof(struct inode))) {
	    (void) snpf(Namech, Namechl, "can't read inode at %s",
		print_kptr(ia, (char *)NULL, 0));
	    return(1);
	}
	return(0);
}
#endif	/* defined(HASINODE) */


#if	defined(HASPIPENODE)
/*
 * readpipenode() - read pipe node
 */

int
readpipenode(pa, p)
	KA_T pa;			/* pipe node kernel address */
	struct pipenode *p;		/* pipe node buffer */
{
	if (kread((KA_T)pa, (char *)p, sizeof(struct pipenode))) {
	    (void) snpf(Namech, Namechl, "can't read pipenode at %s",
		print_kptr(pa, (char *)NULL, 0));
	    return(1);
	}
	return(0);
}
#endif	/* defined(HASPIPENODE) */


#if	defined(HASRNODE)
/*
 * readrnode() - read rnode
 */

int
readrnode(ra, r)
	KA_T ra;			/* rnode kernel space address */
	struct rnode *r;		/* rnode buffer pointer */
{
	if (kread((KA_T)ra, (char *)r, sizeof(struct rnode))) {
	    (void) snpf(Namech, Namechl, "can't read rnode at %s",
		print_kptr(ra, (char *)NULL, 0));
	    return(1);
	}
	return(0);
}
#endif	/* defined(HASRNODE) */


#if	defined(HASSNODE)
/*
 * readsnode() - read snode
 */

int
readsnode(sa, s)
	KA_T sa;			/* snode kernel space address */
	struct snode *s;		/* snode buffer pointer */
{
	if (kread((KA_T)sa, (char *)s, sizeof(struct snode))) {
	    (void) snpf(Namech, Namechl, "can't read snode at %s",
		print_kptr(sa, (char *)NULL, 0));
	    return(1);
	}
	return(0);
}
#endif	/* defined(HASSNODE) */


#if	defined(HASTMPNODE)
/*
 * readtnode() - read tmpnode
 */

int
readtnode(ta, t)
	KA_T ta;			/* tmpnode kernel space address */
	struct tmpnode *t;		/* tmpnode buffer pointer */
{
	if (kread((KA_T)ta, (char *)t, sizeof(struct tmpnode))) {
	    (void) snpf(Namech, Namechl, "can't read tmpnode at %s",
		print_kptr(ta, (char *)NULL, 0));
	    return(1);
	}
	return(0);
}
#endif	/* defined(HASTMPNODE) */


#if	defined(HASVNODE)
/*
 * readvnode() - read vnode
 */

int
readvnode(va, v)
	KA_T va;			/* vnode kernel space address */
	struct vnode *v;		/* vnode buffer pointer */
{
	if (kread((KA_T)va, (char *)v, sizeof(struct vnode))) {
	    (void) snpf(Namech, Namechl, "can't read vnode at %s",
		print_kptr(va, (char *)NULL, 0));
	    return(1);
	}
	return(0);
}
#endif	/* defined(HASVNODE) */