135673Sbostic /* 235673Sbostic * Copyright (c) 1988 The Regents of the University of California. 335673Sbostic * All rights reserved. 435673Sbostic * 542667Sbostic * %sccs.include.redist.c% 635673Sbostic * 735673Sbostic */ 835673Sbostic 935673Sbostic #ifndef lint 10*46669Sbostic static char sccsid[] = "@(#)logwtmp.c 5.7 (Berkeley) 02/25/91"; 1135673Sbostic #endif /* not lint */ 1235673Sbostic 1335673Sbostic #include <sys/types.h> 1435673Sbostic #include <sys/time.h> 1535673Sbostic #include <sys/stat.h> 16*46669Sbostic #include <fcntl.h> 1735673Sbostic #include <utmp.h> 18*46669Sbostic #include <unistd.h> 19*46669Sbostic #include <string.h> 2035673Sbostic 2136304Skarels static int fd = -1; 2235674Sbostic 2336304Skarels /* 2436304Skarels * Modified version of logwtmp that holds wtmp file open 2536304Skarels * after first call, for use with ftp (which may chroot 2636304Skarels * after login, but before logout). 2736304Skarels */ 2835673Sbostic logwtmp(line, name, host) 2935673Sbostic char *line, *name, *host; 3035673Sbostic { 3135673Sbostic struct utmp ut; 3235673Sbostic struct stat buf; 3335673Sbostic time_t time(); 3435673Sbostic char *strncpy(); 3535673Sbostic 3637274Sbostic if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0) 3735673Sbostic return; 3836304Skarels if (fstat(fd, &buf) == 0) { 3935673Sbostic (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); 4035673Sbostic (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); 4135673Sbostic (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); 4235673Sbostic (void)time(&ut.ut_time); 4335673Sbostic if (write(fd, (char *)&ut, sizeof(struct utmp)) != 4435673Sbostic sizeof(struct utmp)) 4535673Sbostic (void)ftruncate(fd, buf.st_size); 4635673Sbostic } 4735673Sbostic } 48