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authorJulian Andres Klode <jak@debian.org>2015-12-19 13:07:12 +0100
committerJulian Andres Klode <jak@debian.org>2015-12-19 13:13:02 +0100
commit39e77e45ae627165a8f89d83a8f875251920ce05 (patch)
treeac424004186649cb4a3372e0352c5f0db2daf8bb /apt-pkg/contrib/fileutl.cc
parent5df91bc70aeac9f39f33d748a3b5602fbf2a3e81 (diff)
Do not try to read in FileFd::Read() if Size is 0
There's no point trying to read 0 bytes, so let's just not do this and switch to a while loop like in Write(). Gbp-Dch: ignore
Diffstat (limited to 'apt-pkg/contrib/fileutl.cc')
-rw-r--r--apt-pkg/contrib/fileutl.cc5
1 files changed, 2 insertions, 3 deletions
diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index 0d1c272ab..c906a0c9e 100644
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -1506,12 +1506,12 @@ FileFd::~FileFd()
gracefully. */
bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
{
- ssize_t Res;
+ ssize_t Res = 1;
errno = 0;
if (Actual != 0)
*Actual = 0;
*((char *)To) = '\0';
- do
+ while (Res > 0 && Size > 0)
{
if (false)
/* dummy so that the rest can be 'else if's */;
@@ -1605,7 +1605,6 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
if (Actual != 0)
*Actual += Res;
}
- while (Res > 0 && Size > 0);
if (Size == 0)
return true;