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https://github.com/KolibriOS/kolibrios.git
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23 lines
701 B
C
23 lines
701 B
C
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#include "stdio.h"
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int fwrite(const void* buffer,int size,int count,FILE* file)
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{
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void* p;
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if ((file->mode & 3==FILE_OPEN_READ) && (file->mode & FILE_OPEN_PLUS==0))
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return 0;
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if (file->mode & 3==FILE_OPEN_APPEND)
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file->filepos=file->filesize;
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count=count*size;
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if (file->buffersize<file->filepos+count)
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{
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p=realloc(file->buffer,(file->filepos+count)+(file->filepos+count)<<1);
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if (p==0)
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return 0;
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file->buffer=p;
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file->buffersize=(file->filepos+count)+(file->filepos+count)<<1;
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}
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if (file->filesize<file->filepos+count)
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file->filesize=file->filepos+count;
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memcpy(file->buffer+file->filepos,buffer,count);
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file->filepos+=count;
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return count;
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}
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