135673Sbostic /* 235673Sbostic * Copyright (c) 1988 The Regents of the University of California. 335673Sbostic * All rights reserved. 435673Sbostic * 535673Sbostic * Redistribution and use in source and binary forms are permitted 635673Sbostic * provided that the above copyright notice and this paragraph are 735673Sbostic * duplicated in all such forms and that any documentation, 835673Sbostic * advertising materials, and other materials related to such 935673Sbostic * distribution and use acknowledge that the software was developed 1035673Sbostic * by the University of California, Berkeley. The name of the 1135673Sbostic * University may not be used to endorse or promote products derived 1235673Sbostic * from this software without specific prior written permission. 1335673Sbostic * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 1435673Sbostic * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 1535673Sbostic * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 1635673Sbostic * 1735673Sbostic * static char sccsid[] = "@(#)logwtmp.c 5.2 (Berkeley) 9/20/88"; 1835673Sbostic */ 1935673Sbostic 2035673Sbostic #ifndef lint 21*36304Skarels static char sccsid[] = "@(#)logwtmp.c 5.3 (Berkeley) 12/07/88"; 2235673Sbostic #endif /* not lint */ 2335673Sbostic 2435673Sbostic #include <sys/types.h> 2535673Sbostic #include <sys/file.h> 2635673Sbostic #include <sys/time.h> 2735673Sbostic #include <sys/stat.h> 2835673Sbostic #include <utmp.h> 2935673Sbostic 3035673Sbostic #define WTMPFILE "/usr/adm/wtmp" 3135673Sbostic 32*36304Skarels static int fd = -1; 3335674Sbostic 34*36304Skarels /* 35*36304Skarels * Modified version of logwtmp that holds wtmp file open 36*36304Skarels * after first call, for use with ftp (which may chroot 37*36304Skarels * after login, but before logout). 38*36304Skarels */ 3935673Sbostic logwtmp(line, name, host) 4035673Sbostic char *line, *name, *host; 4135673Sbostic { 4235673Sbostic struct utmp ut; 4335673Sbostic struct stat buf; 4435673Sbostic time_t time(); 4535673Sbostic char *strncpy(); 4635673Sbostic 47*36304Skarels if (fd < 0 && (fd = open(WTMPFILE, O_WRONLY|O_APPEND, 0)) < 0) 4835673Sbostic return; 49*36304Skarels if (fstat(fd, &buf) == 0) { 5035673Sbostic (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); 5135673Sbostic (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); 5235673Sbostic (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); 5335673Sbostic (void)time(&ut.ut_time); 5435673Sbostic if (write(fd, (char *)&ut, sizeof(struct utmp)) != 5535673Sbostic sizeof(struct utmp)) 5635673Sbostic (void)ftruncate(fd, buf.st_size); 5735673Sbostic } 5835673Sbostic } 59