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File krb5-1.3-rlogind-environ.patch of Package krb5
Start with only TERM defined in the environment, like NetKit rlogind does, and KRB5CCNAME, which we set ourselves. --- krb5-1.3/src/appl/bsd/krlogind.c +++ krb5-1.3/src/appl/bsd/krlogind.c @@ -713,6 +713,9 @@ #else struct sgttyb b; #endif /* POSIX_TERMIOS */ + char environ_term[sizeof(term) + 6], environ_ccname[sizeof(environ_term)]; + char *bare_environ[] = {environ_term, environ_ccname, NULL}; + if ((retval = pty_open_slave(line, &t))) { fatal(f, error_message(retval)); exit(1); @@ -819,11 +822,15 @@ /* use the vendors login, which has -p and -f. Tested on * AIX 4.1.4 and HPUX 10 */ + memset(environ_term, '\0', sizeof(environ_term)); + memset(environ_ccname, '\0', sizeof(environ_ccname)); + if (getenv("KRB5CCNAME") != NULL) + snprintf(environ_ccname, sizeof(environ_ccname) - 1, "KRB5CCNAME=%s", getenv("KRB5CCNAME")); { char *cp; - if ((cp = strchr(term,'/'))) - *cp = '\0'; - setenv("TERM",term, 1); + snprintf(environ_term, sizeof(environ_term) - 1, "TERM=%s", term); + if ((cp = strchr(environ_term,'/'))) + *cp = '\0'; } retval = pty_make_sane_hostname((struct sockaddr *) fromp, maxhostlen, @@ -832,13 +839,13 @@ if (retval) fatalperror(f, "failed make_sane_hostname"); if (passwd_req) - execl(login_program, "login", "-p", "-h", rhost_sane, - lusername, (char *)NULL); + execle(login_program, "login", "-p", "-h", rhost_sane, + lusername, NULL, bare_environ); else - execl(login_program, "login", "-p", "-h", rhost_sane, - "-f", lusername, (char *)NULL); + execle(login_program, "login", "-p", "-h", rhost_sane, + "-f", lusername, NULL, bare_environ); #else /* USE_LOGIN_F */ - execl(login_program, "login", "-r", rhost_sane, (char *)NULL); + execle(login_program, "login", "-r", rhost_sane, NULL, bare_environ); #endif /* USE_LOGIN_F */ syslog(LOG_ERR, "failed exec of %s: %s", login_program, error_message(errno));
