1 | /* |
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2 | * Copyright (c) 1990 The Regents of the University of California. |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms are permitted |
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6 | * provided that the above copyright notice and this paragraph are |
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7 | * duplicated in all such forms and that any documentation, |
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8 | * advertising materials, and other materials related to such |
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9 | * distribution and use acknowledge that the software was developed |
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10 | * by the University of California, Berkeley. The name of the |
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11 | * University may not be used to endorse or promote products derived |
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12 | * from this software without specific prior written permission. |
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13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
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14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
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15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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16 | */ |
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17 | /* No user fns here. Pesch 15apr92. */ |
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18 | |
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19 | #if defined(LIBC_SCCS) && !defined(lint) |
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20 | static char sccsid[] = "%W% (Berkeley) %G%"; |
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21 | #endif /* LIBC_SCCS and not lint */ |
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22 | |
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23 | #include <_ansi.h> |
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24 | #include <stdio.h> |
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25 | #include <errno.h> |
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26 | #include "local.h" |
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27 | |
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28 | /* |
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29 | * Handle getc() when the buffer ran out: |
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30 | * Refill, then return the first character |
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31 | * in the newly-filled buffer. |
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32 | */ |
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33 | |
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34 | int |
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35 | __srget_r (struct _reent *ptr, |
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36 | register FILE *fp) |
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37 | { |
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38 | /* Ensure that any fake std stream is resolved before |
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39 | we call __srefill_r so we may access the true read buffer. */ |
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40 | CHECK_INIT(ptr, fp); |
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41 | |
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42 | if (__srefill_r (ptr, fp) == 0) |
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43 | { |
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44 | fp->_r--; |
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45 | return *fp->_p++; |
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46 | } |
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47 | return EOF; |
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48 | } |
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49 | |
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50 | /* This function isn't any longer declared in stdio.h, but it's |
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51 | required for backward compatibility with applications built against |
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52 | earlier dynamically built newlib libraries. */ |
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53 | int |
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54 | __srget (register FILE *fp) |
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55 | { |
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56 | return __srget_r (_REENT, fp); |
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57 | } |
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