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