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https://github.com/KolibriOS/kolibrios.git
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32 lines
560 B
C
32 lines
560 B
C
#include <stdio.h>
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int fgetc(FILE* file)
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{
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dword res;
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if(!file)
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{
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errno = E_INVALIDPTR;
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return EOF;
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}
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if ((file->mode & 3!=FILE_OPEN_READ) && (file->mode & FILE_OPEN_PLUS==0)) return EOF;
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if (file->filepos>=file->filesize)
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{
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return EOF;
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}
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else
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{
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res=_ksys_readfile(file->filename,file->filepos,1,file->buffer);
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if (res==0)
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{
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file->filepos++;
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return (int)file->buffer[0];
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}
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else
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{
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errno = -res;
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return EOF; // errors are < 0
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}
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}
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}
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