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Better error handling

Browse source 
Most of these will likely have no big impact, but it's better not to just
ignore them as they could lead to crashes.

Uemis downloader: if lseek fails, return 0
Uemis downloader: consistently check for failure to open req.txt
Zip file handling: dup could fail

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2015-06-22 06:46:01 -07:00
parent 64c7202e2d
commit 90f20f4c76
2 changed files with 18 additions and 3 deletions
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9
qt-ui/subsurfacewebservices.cpp
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@ -808,9 +808,12 @@ void DivelogsDeWebServices::downloadFinished()
zipFile.seek(0);
#if defined(Q_OS_UNIX) && defined(LIBZIP_VERSION_MAJOR)
int duppedfd = dup(zipFile.handle());
struct zip *zip = zip_fdopen(duppedfd, 0, &errorcode);
if (!zip)
::close(duppedfd);
struct zip *zip = NULL;
if (duppedfd >= 0) {
zip = zip_fdopen(duppedfd, 0, &errorcode);
if (!zip)
::close(duppedfd);
}
#else
struct zip *zip = zip_open(QFile::encodeName(zipFile.fileName()), 0, &errorcode);
#endif