/* * $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 #include 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(const char *name) { struct map2id_s *p; char ttyname[PATH_MAX]; *ttyname = '\0'; if (*name != '/') strcpy(ttyname, "/dev/"); strncat(ttyname, name, sizeof(ttyname) - strlen(ttyname) -1); 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; }