1 /*
2 * $Id: clientid.c,v 1.7 2007/07/11 17:29:29 cparker Exp $
3 *
4 * Copyright (C) 1995,1996,1997 Lars Fenneberg
5 *
6 * See the file COPYRIGHT for the respective terms and conditions.
7 * If the file is missing contact me at lf@elemental.net
8 * and I'll send you a copy.
9 *
10 */
11
12 #include <config.h>
13 #include <includes.h>
14 #include <freeradius-client.h>
15
16 struct map2id_s {
17 char *name;
18 uint32_t id;
19
20 struct map2id_s *next;
21 };
22
23 /*
24 * Function: rc_read_mapfile
25 *
26 * Purpose: Read in the ttyname to port id map file
27 *
28 * Arguments: the file name of the map file
29 *
30 * Returns: zero on success, negative integer on failure
31 */
32
rc_read_mapfile(rc_handle * rh,char const * filename)33 int rc_read_mapfile(rc_handle *rh, char const *filename)
34 {
35 char buffer[1024];
36 FILE *mapfd;
37 char *c, *name, *id, *q;
38 struct map2id_s *p;
39 int lnr = 0;
40
41 if ((mapfd = fopen(filename,"r")) == NULL)
42 {
43 rc_log(LOG_ERR,"rc_read_mapfile: can't read %s: %s", filename, strerror(errno));
44 return -1;
45 }
46
47 #define SKIP(p) while(*p && isspace(*p)) p++;
48
49 while (fgets(buffer, sizeof(buffer), mapfd) != NULL)
50 {
51 lnr++;
52
53 q = buffer;
54
55 SKIP(q);
56
57 if ((*q == '\n') || (*q == '#') || (*q == '\0'))
58 continue;
59
60 if (( c = strchr(q, ' ')) || (c = strchr(q,'\t'))) {
61
62 *c = '\0'; c++;
63 SKIP(c);
64
65 name = q;
66 id = c;
67
68 if ((p = (struct map2id_s *)malloc(sizeof(*p))) == NULL) {
69 rc_log(LOG_CRIT,"rc_read_mapfile: out of memory");
70 fclose(mapfd);
71 return -1;
72 }
73
74 p->name = strdup(name);
75 p->id = atoi(id);
76 p->next = rh->map2id_list;
77 rh->map2id_list = p;
78
79 } else {
80
81 rc_log(LOG_ERR, "rc_read_mapfile: malformed line in %s, line %d", filename, lnr);
82 fclose(mapfd);
83 return -1;
84
85 }
86 }
87
88 #undef SKIP
89
90 fclose(mapfd);
91
92 return 0;
93 }
94
95 /*
96 * Function: rc_map2id
97 *
98 * Purpose: Map ttyname to port id
99 *
100 * Arguments: full pathname of the tty
101 *
102 * Returns: port id, zero if no entry found
103 */
104
rc_map2id(rc_handle const * rh,char const * name)105 uint32_t rc_map2id(rc_handle const *rh, char const *name)
106 {
107 struct map2id_s *p;
108 char ttyname[PATH_MAX];
109
110 *ttyname = '\0';
111 if (*name != '/')
112 strcpy(ttyname, "/dev/");
113
114 strncat(ttyname, name, sizeof(ttyname)-strlen(ttyname)-1);
115
116 for(p = rh->map2id_list; p; p = p->next)
117 if (!strcmp(ttyname, p->name)) return p->id;
118
119 rc_log(LOG_WARNING,"rc_map2id: can't find tty %s in map database", ttyname);
120
121 return 0;
122 }
123
124 /*
125 * Function: rc_map2id_free
126 *
127 * Purpose: Free allocated map2id list
128 *
129 * Arguments: Radius Client handle
130 */
131
132 void
rc_map2id_free(rc_handle * rh)133 rc_map2id_free(rc_handle *rh)
134 {
135 struct map2id_s *p, *np;
136
137 if (rh->map2id_list == NULL)
138 return;
139
140 for(p = rh->map2id_list; p != NULL; p = np) {
141 np = p->next;
142 free(p->name);
143 free(p);
144 }
145 rh->map2id_list = NULL;
146 }
147