kolibrios/programs/develop/metcc/trunk/libc/file/fputc.c

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#include "stdio.h"
int fputc(int c,FILE* file)
{
dword res;
if ((file->mode & 3)==FILE_OPEN_READ) return EOF;
file->buffer[0]=c;
if ((file->mode & 3)==FILE_OPEN_APPEND)
{
file->filepos=file->filesize;
file->filesize++;
res=_ksys_appendtofile(file->filename,file->filepos,1,file->buffer);
if (res!=0) return(res);
file->filepos++;
return(0);
}
if ((file->mode & 3)==FILE_OPEN_WRITE)
{
if (file->filepos==0)
{ //file not craeted
res=_ksys_rewritefile(file->filename,1,file->buffer);
if (res!=0) return(res);
file->filepos++;
return 0;
}
else
{ //file craeted and need append one byte
res=_ksys_appendtofile(file->filename,file->filepos,1,file->buffer);
if (res!=0) return(res);
file->filepos++;
return 0;
}
}
}