+++ /dev/null
-/*
- * $Id: radlogin.c,v 1.1 2002/01/22 16:03:04 dfs Exp $
- *
- * Copyright (C) 1995,1996 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.
- *
- */
-
-static char rcsid[] =
- "$Id: radlogin.c,v 1.1 2002/01/22 16:03:04 dfs Exp $";
-
-#include <config.h>
-#include <includes.h>
-#include <radiusclient.h>
-#include <messages.h>
-#include <pathnames.h>
-#include <radlogin.h>
-
-ENV *env = NULL;
-static char *pname = NULL;
-
-static RETSIGTYPE
-alarm_handler(int sn)
-{
- fprintf(stderr, SC_TIMEOUT, rc_conf_int("login_timeout"));
- sleep(1);
- exit(ERROR_RC);
-}
-
-static int
-login_allowed(char *tty)
-{
- FILE *fp;
- char fname[PATH_MAX];
- int c;
-
- strcpy(fname, rc_conf_str("nologin"));
- if (access(fname, F_OK) < 0) {
- if (tty) {
- sprintf(fname, "%s.%s", rc_conf_str("nologin"), tty);
- if (access(fname, F_OK) < 0)
- return 1;
- } else {
- return 1;
- }
- }
-
- if ((fp = fopen(fname, "r")) != NULL)
- {
- while ((c = fgetc(fp)) != EOF)
- {
- if (c == '\n')
- fputc('\r', stdout);
- fputc(c, stdout);
- }
- fflush(stdout);
- fclose(fp);
- } else {
- printf(SC_NOLOGIN);
- }
- return (0);
-}
-
-static char *
-subst_placeholders(char *str, char *tty)
-{
- char *p,*q;
- static char buf[4096];
-#if defined(HAVE_UNAME)
- struct utsname uts;
-#endif
-#if !defined(HAVE_STRUCT_UTSNAME_DOMAINNAME) && defined(HAVE_GETDOMAINNAME)
- char domainname[256];
-#endif
-
-#if defined(HAVE_UNAME)
- uname(&uts);
-#endif
-
- p = str;
- q = buf;
-
- while (*p != '\0') {
- switch (*p) {
- case '\\':
- if (*(p+1) == '\0')
- break;
- p++;
- switch (*p) {
- case 'I':
- strcpy(q, rcsid);
- q += strlen(rcsid);
- break;
- case 'L':
- case 'P':
- strcpy(q, tty);
- q += strlen(tty);
- break;
-#if defined(HAVE_UNAME)
- case 'S':
- strcpy(q, uts.sysname);
- q += strlen(uts.sysname);
- break;
- case 'N':
- strcpy(q, uts.nodename);
- q += strlen(uts.nodename);
- break;
- case 'R':
- strcpy(q, uts.release);
- q += strlen(uts.release);
- break;
- case 'V':
- strcpy(q, uts.version);
- q += strlen(uts.version);
- break;
- case 'M':
- strcpy(q, uts.machine);
- q += strlen(uts.machine);
- break;
-#endif
- case 'D':
-#if defined(HAVE_STRUCT_UTSNAME_DOMAINNAME)
- strcpy(q, uts.domainname);
- q += strlen(uts.domainname);
-#elif defined(HAVE_GETDOMAINNAME)
- getdomainname(domainname, sizeof(domainname));
- strcpy(q, domainname);
- q += strlen(domainname);
-#endif
- break;
- case '\\':
- *q = '\\';
- q++;
- break;
- }
- break;
-#if defined(HAVE_UNAME)
- case '@':
- strcpy(q, uts.nodename);
- q += strlen(uts.nodename);
- break;
-#endif
- case '\n':
- strcpy(q,"\r\n");
- q += 2;
- break;
- default:
- *q = *p;
- q++;
- break;
- }
-
- p++;
- }
- *q = '\0';
-
- return buf;
-}
-
-static void
-usage(void)
-{
- fprintf(stderr,"Usage: %s [-Vhnd] [-f <config_file>] [-i <client_port>] [-m <login_tries>]\n\n", pname);
- fprintf(stderr," -V output version information\n");
- fprintf(stderr," -h output this text\n");
- fprintf(stderr," -n don't display issue file\n");
- fprintf(stderr," -f filename of alternate config file\n");
- fprintf(stderr," -i ttyname to send to the server\n");
- fprintf(stderr," -m maximum login tries (overrides value in config file)\n");
- exit(ERROR_RC);
-}
-
-static void
-version(void)
-{
- fprintf(stderr,"%s: %s\n", pname ,rcsid);
- exit(ERROR_RC);
-}
-
-int
-main (int argc, char **argv)
-{
- char username[128];
- char passwd[AUTH_PASS_LEN + 1];
- int tries, remaining, c;
- UINT4 client_port;
- void (*login_func)(char *);
- FILE *fp;
- char buf[4096];
- char tty[1024], *p;
- int noissue = 0;
- int maxtries = 0;
- char *ttyn = NULL;
- char *path_radiusclient_conf = RC_CONFIG_FILE;
-
- extern char *optarg;
- extern int optind;
-
- pname = (pname = strrchr(argv[0],'/'))?pname+1:argv[0];
-
- rc_openlog(pname);
-
- while ((c = getopt(argc,argv,"f:m:i:nhV")) > 0)
- {
- switch(c) {
- case 'f':
- path_radiusclient_conf = optarg;
- break;
- case 'i':
- ttyn = optarg;
- break;
- case 'n':
- noissue = 1;
- break;
- case 'm':
- maxtries = atoi(optarg);
- break;
- case 'V':
- version();
- break;
- case 'h':
- usage();
- break;
- default:
- exit(ERROR_RC);
- break;
- }
- }
-
- if (rc_read_config(path_radiusclient_conf) != 0)
- exit(ERROR_RC);
-
- if (rc_read_dictionary(rc_conf_str("dictionary")) != 0)
- exit (ERROR_RC);
-
- if (rc_read_mapfile(rc_conf_str("mapfile")) != 0)
- exit (ERROR_RC);
-
- if (ttyn != NULL)
- {
- client_port = rc_map2id(ttyn);
-
- if ((p = strrchr(ttyn, '/')) == NULL)
- strncpy(tty, ttyn, sizeof(tty));
- else
- strncpy(tty, p+1, sizeof(tty));
- }
- else
- {
- ttyn = ttyname(0);
- if (ttyn)
- {
- if ((p = strrchr(ttyn, '/')) == NULL)
- strncpy(tty, ttyn, sizeof(tty));
- else
- strncpy(tty, p+1, sizeof(tty));
-
- client_port = rc_map2id(ttyn);
- }
- else
- {
- *tty = '\0';
- client_port = 0;
- }
- }
-
-#ifdef SETVBUF_REVERSED
- setvbuf(stdout, _IONBF, NULL, 0);
-#else
- setvbuf(stdout, NULL, _IONBF, 0);
-#endif
-
- if ((argc - optind) == 1)
- {
- strncpy(username,argv[optind], sizeof(username));
- }
- else
- {
- *username = '\0';
-
- if (!noissue) {
- if (rc_conf_str("issue") && ((fp = fopen(rc_conf_str("issue"), "r")) != NULL))
- {
- while (fgets(buf, sizeof(buf), fp) != NULL)
- fputs(subst_placeholders(buf, tty), stdout);
-
- fflush(stdout);
- fclose(fp);
- } else {
- fputs(subst_placeholders(SC_DEFAULT_ISSUE, tty), stdout);
- fflush(stdout);
- }
- }
- }
-
- if ((env = rc_new_env(ENV_SIZE)) == NULL)
- {
- rc_log(LOG_CRIT, "rc_new_env: FATAL: out of memory");
- abort();
- }
-
-#ifdef SECURITY_DISABLED
- if (rc_import_env(env,environ) < 0)
- {
- rc_log(LOG_CRIT, "rc_import_env: FATAL: not enough space for environment (increase ENV_SIZE)");
- abort();
- }
-#else
- rc_add_env(env, "IFS", " ");
- rc_add_env(env, "PATH", RC_SECURE_PATH);
-#endif
-
- signal(SIGALRM, alarm_handler);
-
- remaining = rc_conf_int("login_timeout");
-
- if (!maxtries)
- maxtries = rc_conf_int("login_tries");
-
- tries = 1;
- while (tries <= maxtries)
- {
- alarm(remaining);
-
- while (!*username) {
- p = rc_getstr (SC_LOGIN, 1);
- if (p)
- strncpy(username, p, sizeof(username));
- else
- exit (ERROR_RC);
- }
- p = rc_getstr(SC_PASSWORD,0);
- if (p)
- strncpy (passwd, p, sizeof (passwd));
- else
- exit (ERROR_RC);
-
- remaining = alarm(0);
-
- login_func = NULL;
-
- if (rc_conf_int("auth_order") & AUTH_LOCAL_FST)
- {
- login_func = auth_local(username, passwd);
-
- if (!login_func)
- if (rc_conf_int("auth_order") & AUTH_RADIUS_SND)
- login_func = auth_radius(client_port, username, passwd);
- }
- else
- {
- login_func = auth_radius(client_port, username, passwd);
- if (!login_func)
- if (rc_conf_int("auth_order") & AUTH_LOCAL_SND)
- login_func = auth_local(username, passwd);
- }
-
- memset(passwd, '\0', sizeof(passwd));
-
- if (login_func != NULL)
- if (login_allowed(tty)) {
- (*login_func)(username);
- } else {
- sleep(1);
- exit (ERROR_RC);
- }
-
- *username = '\0';
-
- if ((++tries) <= maxtries) {
- alarm(remaining);
- sleep(tries * 2);
- remaining = alarm(0);
- }
-
- }
-
- fprintf(stderr, SC_EXCEEDED);
- sleep(1);
-
- exit (ERROR_RC);
-}
projects / ppp.git / blobdiff