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Annotation of 43BSDReno/lib/libpc/PFCLOSE.c, revision 1.1.1.1

1.1       root        1: /*-
                      2:  * Copyright (c) 1982 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: #ifndef lint
                     21: static char sccsid[] = "@(#)PFCLOSE.c  1.4 (Berkeley) 4/9/90";
                     22: #endif /* not lint */
                     23: 
                     24: /*
                     25:  * Close a Pascal file deallocating resources as appropriate.
                     26:  */
                     27: 
                     28: #include "h00vars.h"
                     29: #include "libpc.h"
                     30: 
                     31: struct iorec *
                     32: PFCLOSE(filep, lastuse)
                     33:        register struct iorec *filep;
                     34:        bool lastuse;
                     35: {
                     36:        if ((filep->funit & FDEF) == 0 && filep->fbuf != NULL) {
                     37:                /*
                     38:                 * Have a previous buffer, close associated file.
                     39:                 */
                     40:                if (filep->fblk > PREDEF) {
                     41:                        fflush(filep->fbuf);
                     42:                        setbuf(filep->fbuf, NULL);
                     43:                }
                     44:                fclose(filep->fbuf);
                     45:                if (ferror(filep->fbuf)) {
                     46:                        ERROR("%s: Close failed\n", filep->pfname);
                     47:                        return;
                     48:                }
                     49:                /*
                     50:                 * Temporary files are discarded.
                     51:                 */
                     52:                if ((filep->funit & TEMP) != 0 && lastuse &&
                     53:                    unlink(filep->pfname)) {
                     54:                        PERROR("Could not remove ", filep->pfname);
                     55:                        return;
                     56:                }
                     57:        }
                     58:        _actfile[filep->fblk] = FILNIL;
                     59:        return (filep->fchain);
                     60: }

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