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Annotation of 43BSDReno/lib/libutil/login.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that: (1) source distributions retain this entire copyright
        !             7:  * notice and comment, and (2) distributions including binaries display
        !             8:  * the following acknowledgement:  ``This product includes software
        !             9:  * developed by the University of California, Berkeley and its contributors''
        !            10:  * in the documentation or other materials provided with the distribution
        !            11:  * and in all advertising materials mentioning features or use of this
        !            12:  * software. Neither the name of the University nor the names of its
        !            13:  * contributors may be used to endorse or promote products derived
        !            14:  * from this software without specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #if defined(LIBC_SCCS) && !defined(lint)
        !            21: static char sccsid[] = "@(#)login.c    5.4 (Berkeley) 6/1/90";
        !            22: #endif /* LIBC_SCCS and not lint */
        !            23: 
        !            24: #include <sys/types.h>
        !            25: #include <sys/file.h>
        !            26: #include <utmp.h>
        !            27: #include <stdio.h>
        !            28: 
        !            29: void
        !            30: login(ut)
        !            31:        struct utmp *ut;
        !            32: {
        !            33:        register int fd;
        !            34:        int tty;
        !            35:        off_t lseek();
        !            36: 
        !            37:        tty = ttyslot();
        !            38:        if (tty > 0 && (fd = open(_PATH_UTMP, O_WRONLY|O_CREAT, 0644)) >= 0) {
        !            39:                (void)lseek(fd, (long)(tty * sizeof(struct utmp)), L_SET);
        !            40:                (void)write(fd, (char *)ut, sizeof(struct utmp));
        !            41:                (void)close(fd);
        !            42:        }
        !            43:        if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) >= 0) {
        !            44:                (void)write(fd, (char *)ut, sizeof(struct utmp));
        !            45:                (void)close(fd);
        !            46:        }
        !            47: }

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