[444] | 1 | /* |
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| 2 | * Copyright (c) 1990, 2007 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 | /* doc in sprintf.c */ |
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| 18 | /* This code created by modifying sprintf.c so copyright inherited. */ |
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| 19 | |
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| 20 | #include <_ansi.h> |
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| 21 | #include <reent.h> |
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| 22 | #include <stdio.h> |
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| 23 | #include <stdarg.h> |
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| 24 | #include <limits.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 | int |
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| 29 | _snprintf_r (struct _reent *ptr, |
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| 30 | char *__restrict str, |
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| 31 | size_t size, |
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| 32 | const char *__restrict fmt, ...) |
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| 33 | { |
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| 34 | int ret; |
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| 35 | va_list ap; |
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| 36 | FILE f; |
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| 37 | |
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| 38 | if (size > INT_MAX) |
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| 39 | { |
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| 40 | ptr->_errno = EOVERFLOW; |
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| 41 | return EOF; |
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| 42 | } |
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| 43 | f._flags = __SWR | __SSTR; |
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| 44 | f._bf._base = f._p = (unsigned char *) str; |
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| 45 | f._bf._size = f._w = (size > 0 ? size - 1 : 0); |
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| 46 | f._file = -1; /* No file. */ |
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| 47 | va_start (ap, fmt); |
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| 48 | ret = _svfprintf_r (ptr, &f, fmt, ap); |
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| 49 | va_end (ap); |
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| 50 | if (ret < EOF) |
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| 51 | ptr->_errno = EOVERFLOW; |
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| 52 | if (size > 0) |
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| 53 | *f._p = 0; |
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| 54 | return (ret); |
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| 55 | } |
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| 56 | |
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| 57 | #ifdef _NANO_FORMATTED_IO |
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| 58 | int |
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| 59 | _sniprintf_r (struct _reent *, char *, size_t, const char *, ...) |
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| 60 | _ATTRIBUTE ((__alias__("_snprintf_r"))); |
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| 61 | #endif |
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| 62 | |
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| 63 | #ifndef _REENT_ONLY |
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| 64 | |
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| 65 | int |
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| 66 | snprintf (char *__restrict str, |
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| 67 | size_t size, |
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| 68 | const char *__restrict fmt, ...) |
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| 69 | { |
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| 70 | int ret; |
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| 71 | va_list ap; |
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| 72 | FILE f; |
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| 73 | struct _reent *ptr = _REENT; |
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| 74 | |
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| 75 | if (size > INT_MAX) |
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| 76 | { |
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| 77 | ptr->_errno = EOVERFLOW; |
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| 78 | return EOF; |
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| 79 | } |
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| 80 | f._flags = __SWR | __SSTR; |
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| 81 | f._bf._base = f._p = (unsigned char *) str; |
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| 82 | f._bf._size = f._w = (size > 0 ? size - 1 : 0); |
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| 83 | f._file = -1; /* No file. */ |
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| 84 | va_start (ap, fmt); |
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| 85 | ret = _svfprintf_r (ptr, &f, fmt, ap); |
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| 86 | va_end (ap); |
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| 87 | if (ret < EOF) |
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| 88 | ptr->_errno = EOVERFLOW; |
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| 89 | if (size > 0) |
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| 90 | *f._p = 0; |
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| 91 | return (ret); |
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| 92 | } |
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| 93 | |
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| 94 | #ifdef _NANO_FORMATTED_IO |
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| 95 | int |
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| 96 | sniprintf (char *, size_t, const char *, ...) |
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| 97 | _ATTRIBUTE ((__alias__("snprintf"))); |
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| 98 | #endif |
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| 99 | #endif |
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