bug in setvbuf

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1 total messages Started by Mike Wescott Wed, 22 Feb 1989 03:33

#976

Author: Mike Wescott
Date: Wed, 22 Feb 1989 03:33

12 lines
1089 bytes

In the SysVr3v2 code, setvbuf(fp,buf,type,size) when called with buf==NULL will
malloc() a buffer of size, free()ing the old one if _IOMYBUF is set in
fp->_flags.  As used elsewhere in the stdio code _IOMYBUF is used to indicate
that the buffer has been malloc()ed in the stdio code and should be free()ed at
fclose() or when setvbuf(), or setbuf() overrides.

_IOMYBUF is NOT set in setvbuf when the buffer is malloc()ed. Shouldn't it be?
If not, how would the space get freed? No, I don't think the programmer should
do a free(fp->_base).
-- 
	-Mike Wescott
	 mike.wescott@ncrcae.Columbia.NCR.COM

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