CU Amiga Super CD-ROM 27/CU Amiga Magazine's Super CD-ROM 27 (1998)(EMAP Images)(GB)[!][issue 1998-10].iso/CUCD/PowerPC/vbcc/machines/amigawos/libsrc/stdio/_putbuf.c

C/C++ Source or Header | 1998-08-02 | 583b | 25 lines

#include <stdlib.h>
#include <stdio.h>

int _putbuf(int c,FILE *f)
{
  _chkabort();
  if(!f) return(EOF);
  if((f->flags&(_WRITEABLE|_READ|_EOF|_ERR))!=_WRITEABLE) return(EOF);
  if(!f->bufsize){if(f->flags&_UNBUF) f->bufsize=1; else f->bufsize=BUFSIZ;}
  if(!f->base){
    if(!(f->base=(char *)malloc(f->bufsize+1)+1))
      return(EOF);
  }else{
    int len=f->pointer-f->base;
    if(f->flags&_WRITE)
      if(_write(f->filehandle,f->base,len)!=len) return(EOF);
  }
  f->flags|=_WRITE;
  f->pointer=f->base;
  f->count=f->bufsize;
  *f->pointer++=c;
  f->count--;
  return(0);
}