1 /* $Id: readers.c,v 1.2 2003/06/19 22:40:53 rees Exp $ */
2 
3 /*
4 copyright 2001
5 the regents of the university of michigan
6 all rights reserved
7 
8 permission is granted to use, copy, create derivative works
9 and redistribute this software and such derivative works
10 for any purpose, so long as the name of the university of
11 michigan is not used in any advertising or publicity
12 pertaining to the use or distribution of this software
13 without specific, written prior authorization.  if the
14 above copyright notice or any other identification of the
15 university of michigan is included in any copy of any
16 portion of this software, then the disclaimer below must
17 also be included.
18 
19 this software is provided as is, without representation
20 from the university of michigan as to its fitness for any
21 purpose, and without warranty by the university of
22 michigan of any kind, either express or implied, including
23 without limitation the implied warranties of
24 merchantability and fitness for a particular purpose. the
25 regents of the university of michigan shall not be liable
26 for any damages, including special, indirect, incidental, or
27 consequential damages, with respect to any claim arising
28 out of or in connection with the use of the software, even
29 if it has been or is hereafter advised of the possibility of
30 such damages.
31 */
32 
33 /*
34  * parse the reader.conf file
35  *
36  * Jim Rees
37  * University of Michigan CITI, August 2000
38  */
39 
40 #include <stdlib.h>
41 #include <stdio.h>
42 #include <string.h>
43 
44 int
45 DBUpdateReaders(char *readerconf, int (callback) (int rn, unsigned long channelId, unsigned long lun, char *driverFile))
46 {
47 	FILE *f;
48 	char buf[512], lv[64], rv[512], libpath[512];
49 	long channelno, lun = 0;
50 	int nr = 0;
51 
52 	f = fopen(readerconf, "r");
53 	if (!f)
54 		return -1;
55 
56 	libpath[0] = '\0';
57 	channelno = -1;
58 
59 	while (fgets(buf, sizeof buf, f)) {
60 		if (sscanf(buf, "%63s %511s", lv, rv) != 2)
61 			continue;
62 		if (rv[0] == '"') {
63 			/* if rv starts with quote, read everything up to terminating quote */
64 			sscanf(buf, "%*s \"%511[^\"]", rv);
65 		}
66 #ifdef DEBUG
67 		printf("%s %s\n", lv, rv);
68 #endif
69 		if (!strcasecmp(lv, "libpath"))
70 			strncpy(libpath, rv, sizeof libpath);
71 		if (!strcasecmp(lv, "channelid"))
72 			channelno = strtol(rv, NULL, 0);
73 		if (libpath[0] && channelno != -1) {
74 #ifdef DEBUG
75 			printf("adding rn %d Id 0x%x lun %d path %s\n", nr, channelno, lun, libpath);
76 #endif
77 			(*callback)(nr++, channelno, lun, libpath);
78 			libpath[0] = '\0';
79 			channelno = -1;
80 		}
81 	}
82 
83 	fclose(f);
84 	return 0;
85 }
86