135673Sbostic /* 235673Sbostic * Copyright (c) 1988 The Regents of the University of California. 335673Sbostic * All rights reserved. 435673Sbostic * 5*42667Sbostic * %sccs.include.redist.c% 635673Sbostic * 735673Sbostic */ 835673Sbostic 935673Sbostic #ifndef lint 10*42667Sbostic static char sccsid[] = "@(#)logwtmp.c 5.6 (Berkeley) 06/01/90"; 1135673Sbostic #endif /* not lint */ 1235673Sbostic 1335673Sbostic #include <sys/types.h> 1435673Sbostic #include <sys/file.h> 1535673Sbostic #include <sys/time.h> 1635673Sbostic #include <sys/stat.h> 1735673Sbostic #include <utmp.h> 1835673Sbostic 1936304Skarels static int fd = -1; 2035674Sbostic 2136304Skarels /* 2236304Skarels * Modified version of logwtmp that holds wtmp file open 2336304Skarels * after first call, for use with ftp (which may chroot 2436304Skarels * after login, but before logout). 2536304Skarels */ 2635673Sbostic logwtmp(line, name, host) 2735673Sbostic char *line, *name, *host; 2835673Sbostic { 2935673Sbostic struct utmp ut; 3035673Sbostic struct stat buf; 3135673Sbostic time_t time(); 3235673Sbostic char *strncpy(); 3335673Sbostic 3437274Sbostic if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0) 3535673Sbostic return; 3636304Skarels if (fstat(fd, &buf) == 0) { 3735673Sbostic (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); 3835673Sbostic (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); 3935673Sbostic (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); 4035673Sbostic (void)time(&ut.ut_time); 4135673Sbostic if (write(fd, (char *)&ut, sizeof(struct utmp)) != 4235673Sbostic sizeof(struct utmp)) 4335673Sbostic (void)ftruncate(fd, buf.st_size); 4435673Sbostic } 4535673Sbostic } 46