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1 | /* $Header: /cvsup/minix/src/lib/ack/libp/cls.c,v 1.1 2005/10/10 15:27:46 beng Exp $ */
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2 | /*
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3 | * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
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4 | *
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5 | * This product is part of the Amsterdam Compiler Kit.
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6 | *
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7 | * Permission to use, sell, duplicate or disclose this software must be
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8 | * obtained in writing. Requests for such permissions may be sent to
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9 | *
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10 | * Dr. Andrew S. Tanenbaum
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11 | * Wiskundig Seminarium
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12 | * Vrije Universiteit
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13 | * Postbox 7161
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14 | * 1007 MC Amsterdam
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15 | * The Netherlands
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16 | *
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17 | */
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18 |
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19 | /* Author: J.W. Stevenson */
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20 |
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21 | #include <pc_file.h>
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22 | #include <pc_err.h>
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23 |
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24 | extern struct file *_curfil;
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25 | extern _trp();
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26 | extern _flush();
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27 | extern _outcpt();
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28 | extern int _close();
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29 |
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30 | _xcls(f) struct file *f; {
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31 |
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32 | if ((f->flags & WRBIT) == 0)
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33 | return;
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34 | if ((f->flags & (TXTBIT|ELNBIT)) == TXTBIT) {
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35 | #ifdef CPM
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36 | *f->ptr = '\r';
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37 | _outcpt(f);
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38 | #endif
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39 | *f->ptr = '\n';
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40 | _outcpt(f);
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41 | }
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42 | _flush(f);
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43 | }
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44 |
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45 | _cls(f) struct file *f; {
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46 | #ifdef MAYBE
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47 | char *p;
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48 | #endif
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49 |
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50 | _curfil = f;
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51 | if ((f->flags&0377) != MAGIC)
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52 | return;
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53 | #ifdef MAYBE
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54 | p = f->bufadr;
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55 | if (f->ptr < p)
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56 | return;
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57 | if (f->buflen <= 0)
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58 | return;
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59 | p += f->buflen;
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60 | if (f->ptr >= p)
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61 | return;
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62 | #endif
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63 | _xcls(f);
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64 | if (_close(f->ufd) != 0)
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65 | _trp(ECLOSE);
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66 | f->flags = 0;
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67 | }
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