forked from KolibriOS/kolibrios
41 lines
768 B
C
41 lines
768 B
C
#include <stdio.h>
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#include <kolibrisys.h>
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int fread(void *buffer,int size,int count,FILE* file)
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{
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dword res;
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dword fullsize;
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if(!file || !buffer)
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{
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errno = E_INVALIDPTR;
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return 0;
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}
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if ((file->mode &3)!=FILE_OPEN_READ && (file->mode & FILE_OPEN_PLUS==0))
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{
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errno = E_ACCESS;
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return 0;
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}
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fullsize=count*size;
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if ((fullsize+file->filepos)>=(file->filesize))
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{
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fullsize=file->filesize-file->filepos;
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if (fullsize<=0) return(0);
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}
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res=_ksys_readfile(file->filename,file->filepos,fullsize,buffer);
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if (res==0)
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{
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file->filepos=file->filepos+fullsize;
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fullsize=fullsize/size;
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return(fullsize);
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}
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else
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{
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errno = -res;
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return 0;
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}
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}
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