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
|
/* $Progeny$ */
/* scsi.c -- Scan the SCSI bus
*
* AUTHOR: John R. Daily <jdaily@progeny.com>
*
* Copyright 2002 Hewlett-Packard Company
* Copyright 2001, 2002 Progeny Linux Systems, Inc.
* Copyright (C) 1998-2000 MandrakeSoft
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <discover/sysdep.h>
#include <discover/utils.h>
/*
* The Linux kernel reports SCSI devices using human-readable names,
* obliterating the original SCSI device type. We can undo some of
* the damage, but not all of it.
*
* This list is taken from kernel 2.4.17, in drivers/scsi/scsi.c.
*/
char *scsi_kernel_mappings[] = {
"Direct-Access",
"Sequential-Access",
"Printer",
"Processor",
"WORM",
"CD-ROM",
"Scanner",
"Optical Device",
"Medium Changer",
"Communications",
"Unknown",
"Unknown",
"Unknown",
"Enclosure",
NULL
};
/*
* This function is specific to each sysdep.
*/
static void
_discover_sysdep_init(discover_sysdep_data_t *node)
{
node->busclass = _discover_xmalloc(2);
node->vendor = _discover_xmalloc(9);
node->model = _discover_xmalloc(17);
}
discover_sysdep_data_t *
_discover_get_scsi_raw(void)
{
FILE *file;
char *line2, *line3;
char *type;
char *vendor, *model;
int i, found_one = 0;
discover_sysdep_data_t *head = NULL, *node, *last = NULL;
line2 = (char *)_discover_xmalloc(1024);
if (line2 == NULL) {
return NULL;
}
line3 = (char *)_discover_xmalloc(1024);
if (line3 == NULL) {
return NULL;
}
/********************************************************************/
/* Length of text fields in `/proc/scsi/scsi' */
/* - Type 17 chars */
/* - Vendor 8 chars */
/* - Model 16 chars */
/********************************************************************/
if((file = fopen(PATH_PROC_SCSI, "r")) == NULL){
free(line2);
free(line3);
return NULL;
}
fgets(line2, 500, file);
if(strstr(line2, "Attached devices:") == NULL){
fclose(file);
free(line2);
free(line3);
return NULL;
}
while((fgets(line2, 500, file) != NULL) &&
(fgets(line2, 500, file) != NULL) &&
(fgets(line3, 500, file) != NULL)) {
node = _discover_sysdep_data_new();
_discover_sysdep_init(node);
/*
* We don't want trailing spaces to throw off the string
* comparison.
*/
line2[18]='\0';
for(i = 17; line2[i] == ' '; i--) {
line2[i] = '\0';
}
line2[42]='\0';
for(i = 41; line2[i] == ' '; i--) {
line2[i] = '\0';
}
line3[27]='\0';
for(i = 26; line3[i] == ' '; i--) {
line3[i] = '\0';
}
type = line3 + 10;
vendor = line2 + 10;
model = line2 + 26;
for (i = 0; scsi_kernel_mappings[i]; i++) {
if (strncmp(type, scsi_kernel_mappings[i],
strlen(scsi_kernel_mappings[i])) == 0) {
sprintf(node->busclass, "%x", i);
found_one = 1;
}
}
if (!found_one) {
/* One of the "unknown" classes */
node->busclass[0] = 'a';
}
strcpy(node->vendor, vendor);
strcpy(node->model, model);
if (head == NULL) {
head = node;
last = head;
} else {
last->next = node;
last = node;
}
}
free(line2);
free(line3);
fclose(file);
return head;
}
/*
* Local variables:
* c-file-style: "progeny"
* indent-tabs-mode: nil
* End:
*/
/* vim: set cin fo=tcroq sw=4 et sts=4 tw=75: */
|
