36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
/*
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* Copyright (c) 2011, 2012, 2013, 2014, 2015 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* stdio/vfprintf_unlocked.c
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* Prints a string to a FILE.
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*/
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#include <errno.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdint.h>
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static size_t vfprintf_callback(void* ctx, const char* string, size_t length)
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{
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return fwrite_unlocked(string, 1, length, (FILE*) ctx);
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}
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int vfprintf_unlocked(FILE* fp, const char* restrict format, va_list list)
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{
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if ( !(fp->flags & _FILE_WRITABLE) )
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return errno = EBADF, fp->flags |= _FILE_STATUS_ERROR, -1;
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return vcbprintf(fp, vfprintf_callback, format, list);
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}
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