42 lines
1.2 KiB
Diff
42 lines
1.2 KiB
Diff
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From b3e24d420f7ab2ff8bc715f4be1643323e0d67da Mon Sep 17 00:00:00 2001
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From: Florian Festi <ffesti@redhat.com>
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Date: Sun, 14 Oct 2012 10:52:24 +0200
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Subject: [PATCH] Call read() repeatedly to avoid rpm2cpio break on a pipe as
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input (#802839)
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---
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rpmio/rpmio.c | 17 ++++++++++++++++-
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1 files changed, 16 insertions(+), 1 deletions(-)
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diff --git a/rpmio/rpmio.c b/rpmio/rpmio.c
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index 6473d55..94ff5e2 100644
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--- a/rpmio/rpmio.c
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+++ b/rpmio/rpmio.c
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@@ -765,7 +765,22 @@ static const FDIO_t ufdio = &ufdio_s ;
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ssize_t timedRead(FD_t fd, void * bufptr, size_t length)
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{
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- return ufdio->read(fd, bufptr, length);
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+ ssize_t already_read =0;
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+ ssize_t read = 0;
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+ char * cbuf = (char *)(bufptr);
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+ while (already_read < length) {
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+ read = ufdio->read(fd, cbuf+already_read, length-already_read);
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+ if (read == 0) {
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+ break;
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+ } else if (read < 0) {
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+ if (errno == EAGAIN || errno == EINTR || errno == EWOULDBLOCK)
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+ continue;
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+ return read;
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+ } else {
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+ already_read += read;
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+ }
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+ }
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+ return already_read;
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}
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/* =============================================================== */
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--
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1.7.4.4
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