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Annotation of 43BSDReno/kerberosIV/krb/dest_tkt.c, revision 1.1.1.1

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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