57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
#include <stdio.h>
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int fputc(int c,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)
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{
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errno = E_ACCESS;
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return EOF;
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}
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file->buffer[0]=c;
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if ((file->mode & 3)==FILE_OPEN_APPEND)
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{
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file->filepos=file->filesize;
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file->filesize++;
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res=_ksys_appendtofile(file->filename,file->filepos,1,file->buffer);
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if (res!=0)
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{
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errno = -res;
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return EOF;
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}
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file->filepos++;
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return c;
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}
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if ((file->mode & 3)==FILE_OPEN_WRITE)
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{
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if (file->filepos==0)
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{ //file not created
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res=_ksys_rewritefile(file->filename,1,file->buffer);
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if (res!=0)
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{
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errno = -res;
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return EOF;
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}
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file->filepos++;
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return c;
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}
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else
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{ //file created and need append one byte
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res=_ksys_appendtofile(file->filename,file->filepos,1,file->buffer);
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if (res!=0)
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{
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errno = -res;
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return EOF;
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}
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file->filepos++;
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return c;
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}
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}
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}
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