--- /dev/null
+/*
+ * $Id: clientid.c,v 1.1 2004/11/14 07:26:26 paulus Exp $
+ *
+ * Copyright (C) 1995,1996,1997 Lars Fenneberg
+ *
+ * See the file COPYRIGHT for the respective terms and conditions.
+ * If the file is missing contact me at lf@elemental.net
+ * and I'll send you a copy.
+ *
+ */
+
+#include <includes.h>
+#include <radiusclient.h>
+
+struct map2id_s {
+ char *name;
+ UINT4 id;
+
+ struct map2id_s *next;
+};
+
+static struct map2id_s *map2id_list = NULL;
+
+/*
+ * Function: rc_read_mapfile
+ *
+ * Purpose: Read in the ttyname to port id map file
+ *
+ * Arguments: the file name of the map file
+ *
+ * Returns: zero on success, negative integer on failure
+ */
+
+int rc_read_mapfile(char *filename)
+{
+ char buffer[1024];
+ FILE *mapfd;
+ char *c, *name, *id, *q;
+ struct map2id_s *p;
+ int lnr = 0;
+
+ if ((mapfd = fopen(filename,"r")) == NULL)
+ {
+ error("rc_read_mapfile: can't read %s: %s", filename, strerror(errno));
+ return (-1);
+ }
+
+#define SKIP(p) while(*p && isspace(*p)) p++;
+
+ while (fgets(buffer, sizeof(buffer), mapfd) != NULL)
+ {
+ lnr++;
+
+ q = buffer;
+
+ SKIP(q);
+
+ if ((*q == '\n') || (*q == '#') || (*q == '\0'))
+ continue;
+
+ if (( c = strchr(q, ' ')) || (c = strchr(q,'\t'))) {
+
+ *c = '\0'; c++;
+ SKIP(c);
+
+ name = q;
+ id = c;
+
+ if ((p = (struct map2id_s *)malloc(sizeof(*p))) == NULL) {
+ novm("rc_read_mapfile");
+ return (-1);
+ }
+
+ p->name = strdup(name);
+ p->id = atoi(id);
+ p->next = map2id_list;
+ map2id_list = p;
+
+ } else {
+
+ error("rc_read_mapfile: malformed line in %s, line %d", filename, lnr);
+ return (-1);
+
+ }
+ }
+
+#undef SKIP
+
+ fclose(mapfd);
+
+ return 0;
+}
+
+/*
+ * Function: rc_map2id
+ *
+ * Purpose: Map ttyname to port id
+ *
+ * Arguments: full pathname of the tty
+ *
+ * Returns: port id, zero if no entry found
+ */
+
+UINT4 rc_map2id(char *name)
+{
+ struct map2id_s *p;
+ char ttyname[PATH_MAX];
+
+ *ttyname = '\0';
+ if (*name != '/')
+ strcpy(ttyname, "/dev/");
+
+ strncat(ttyname, name, sizeof(ttyname));
+
+ for(p = map2id_list; p; p = p->next)
+ if (!strcmp(ttyname, p->name)) return p->id;
+
+ warn("rc_map2id: can't find tty %s in map database", ttyname);
+
+ return 0;
+}