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Atari Mega Archive 1
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Atari Mega Archive - Volume 1.iso
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gnu
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gnulib
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libsrc98.zoo
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getbuf.c
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C/C++ Source or Header
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1992-09-14
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792b
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33 lines
/* from the dLibs getbuf.c */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
extern size_t __DEFAULT_BUFSIZ__;
void _getbuf(fp) /* allocate a buffer for a stream */
register FILE *fp;
{
unsigned int f = fp->_flag;
if(f & _IOLBF)
fp->_bsiz = (__DEFAULT_BUFSIZ__ < BUFSIZ) ? __DEFAULT_BUFSIZ__ :
BUFSIZ;
else
fp->_bsiz = __DEFAULT_BUFSIZ__;
if((f & _IONBF) /* risky!! but works ok with gnu.may change */
|| ((fp->_base = (unsigned char *)malloc((size_t)fp->_bsiz)) == 0) )
{
fp->_flag &= ~(_IOFBF | _IOLBF | _IONBF);
fp->_flag |= _IONBF;
fp->_base = &(fp->_ch); /* use tiny buffer */
fp->_bsiz = 1;
}
else
fp->_flag |= _IOMYBUF; /* use big buffer */
fp->_ptr = fp->_base;
fp->_cnt = 0; /* start out with an empty buffer */
}