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Annotation of 43BSDReno/kerberosIV/krb/dest_tkt.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * $Source: /usr/src/kerberosIV/krb/RCS/dest_tkt.c,v $
        !             3:  * $Author: kfall $
        !             4:  *
        !             5:  * Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
        !             6:  * of Technology.
        !             7:  *
        !             8:  * For copying and distribution information, please see the file
        !             9:  * <mit-copyright.h>.
        !            10:  */
        !            11: 
        !            12: #ifndef lint
        !            13: static char *rcsid_dest_tkt_c =
        !            14: "$Id: dest_tkt.c,v 4.10 90/06/25 20:55:34 kfall Exp $";
        !            15: #endif /* lint */
        !            16: 
        !            17: #include <mit-copyright.h>
        !            18: #include <stdio.h>
        !            19: #include <des.h>
        !            20: #include <krb.h>
        !            21: #include <sys/file.h>
        !            22: #include <sys/types.h>
        !            23: #include <sys/stat.h>
        !            24: #ifdef TKT_SHMEM
        !            25: #include <sys/param.h>
        !            26: #endif
        !            27: #include <errno.h>
        !            28: 
        !            29: /*
        !            30:  * dest_tkt() is used to destroy the ticket store upon logout.
        !            31:  * If the ticket file does not exist, dest_tkt() returns RET_TKFIL.
        !            32:  * Otherwise the function returns RET_OK on success, KFAILURE on
        !            33:  * failure.
        !            34:  *
        !            35:  * The ticket file (TKT_FILE) is defined in "krb.h".
        !            36:  */
        !            37: 
        !            38: dest_tkt()
        !            39: {
        !            40:     char *file = TKT_FILE;
        !            41:     int i,fd;
        !            42:     extern int errno;
        !            43:     struct stat statb;
        !            44:     char buf[BUFSIZ];
        !            45: #ifdef TKT_SHMEM
        !            46:     char shmidname[MAXPATHLEN];
        !            47: #endif /* TKT_SHMEM */
        !            48: 
        !            49:     errno = 0;
        !            50:     if (lstat(file,&statb) < 0)
        !            51:        goto out;
        !            52: 
        !            53:     if (!(statb.st_mode & S_IFREG)
        !            54: #ifdef notdef
        !            55:        || statb.st_mode & 077
        !            56: #endif
        !            57:        )
        !            58:        goto out;
        !            59: 
        !            60:     if ((fd = open(file, O_RDWR, 0)) < 0)
        !            61:        goto out;
        !            62: 
        !            63:     bzero(buf, BUFSIZ);
        !            64: 
        !            65:     for (i = 0; i < statb.st_size; i += BUFSIZ)
        !            66:        if (write(fd, buf, BUFSIZ) != BUFSIZ) {
        !            67:            (void) fsync(fd);
        !            68:            (void) close(fd);
        !            69:            goto out;
        !            70:        }
        !            71: 
        !            72:     (void) fsync(fd);
        !            73:     (void) close(fd);
        !            74: 
        !            75:     (void) unlink(file);
        !            76: 
        !            77: out:
        !            78:     if (errno == ENOENT) return RET_TKFIL;
        !            79:     else if (errno != 0) return KFAILURE;
        !            80: #ifdef TKT_SHMEM
        !            81:     /* 
        !            82:      * handle the shared memory case 
        !            83:      */
        !            84:     (void) strcpy(shmidname, file);
        !            85:     (void) strcat(shmidname, ".shm");
        !            86:     if ((i = krb_shm_dest(shmidname)) != KSUCCESS)
        !            87:        return(i);
        !            88: #endif /* TKT_SHMEM */
        !            89:     return(KSUCCESS);
        !            90: }

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