From dc50285d324d83548eae7e87b92d4f82b931fc30 Mon Sep 17 00:00:00 2001 From: Matt Zimmerman Date: Fri, 4 Feb 2005 03:00:00 +0000 Subject: allow SHA1Summation to process a file descriptor until EOF * Apply patch from Anthony Towns to allow SHA1Summation to process a file descriptor until EOF, rather than requiring that the length of input be specified (Closes: #291338) --- apt-pkg/contrib/sha1.cc | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'apt-pkg') diff --git a/apt-pkg/contrib/sha1.cc b/apt-pkg/contrib/sha1.cc index a22b4d2b2..d7f606982 100644 --- a/apt-pkg/contrib/sha1.cc +++ b/apt-pkg/contrib/sha1.cc @@ -343,11 +343,16 @@ bool SHA1Summation::AddFD(int Fd,unsigned long Size) { unsigned char Buf[64 * 64]; int Res = 0; - while (Size != 0) + int ToEOF = (Size == 0); + while (Size != 0 || ToEOF); { - Res = read(Fd,Buf,MIN(Size,sizeof(Buf))); - if (Res < 0 || (unsigned) Res != MIN(Size,sizeof(Buf))) + int n = sizeof(Buf); + if (!ToEOF) n = MIN(Size,n); + Res = read(Fd,Buf,n); + if (Res < 0 || (!ToEOF && (unsigned) Res != n)) // error, or short read return false; + if (ToEOF && Res == 0) // EOF + break; Size -= Res; Add(Buf,Res); } -- cgit v1.2.3-70-g09d2