diff options
author | Thomas Preud'homme <robotux@celest.fr> | 2020-08-31 00:06:58 +0100 |
---|---|---|
committer | Thomas Preud'homme <robotux@celest.fr> | 2020-09-05 20:29:42 +0100 |
commit | 8efbbb6ede28a37326b2d0579e3558182bf5cc12 (patch) | |
tree | 62beeed286cc72e0c74a37d2bfeeb815fc7c6d7a /plugins/CopyEngine/Ultracopier-Spec/async/TransferThreadAsync.cpp | |
parent | ac95ce6e0538249e9c395904b49b078234fdcb5e (diff) |
Fix requirement for PATH_MAX
POSIX says PATH_MAX *may* be defined and on GNU Hurd it is in fact not
defined. This commit uses dynamic allocation to avoid relying on
PATH_MAX being defined.
Author: Thomas Preud'homme <robotux@debian.org>
Forwarded: https://github.com/alphaonex86/Ultracopier/pull/51
Applied-Upstream: commit:02afb78e2345f5c6fd0891fad554dca13179a0cd
Last-Update: 2020-08-31
Diffstat (limited to 'plugins/CopyEngine/Ultracopier-Spec/async/TransferThreadAsync.cpp')
-rwxr-xr-x | plugins/CopyEngine/Ultracopier-Spec/async/TransferThreadAsync.cpp | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/plugins/CopyEngine/Ultracopier-Spec/async/TransferThreadAsync.cpp b/plugins/CopyEngine/Ultracopier-Spec/async/TransferThreadAsync.cpp index b5af928..b291b21 100755 --- a/plugins/CopyEngine/Ultracopier-Spec/async/TransferThreadAsync.cpp +++ b/plugins/CopyEngine/Ultracopier-Spec/async/TransferThreadAsync.cpp @@ -620,9 +620,16 @@ void TransferThreadAsync::ifCanStartTransfer() return; } } - char buf[PATH_MAX]; - const ssize_t s=readlink(TransferThread::internalStringTostring(source).c_str(),buf,sizeof(buf)); - buf[s]=0x00; + std::vector<char> buf(512); + ssize_t s=0; + do { + buf.resize(buf.size()*2); + s=readlink(TransferThread::internalStringTostring(source).c_str(),buf.data(),buf.size()); + } while (s == buf.size()); + if (s!=-1) { + buf.resize(s + 1); + buf[s]='\0'; + } if(s<0) { const int terr=errno; @@ -638,12 +645,12 @@ void TransferThreadAsync::ifCanStartTransfer() } else { - if(symlink(buf,TransferThread::internalStringTostring(destination).c_str())!=0) + if(symlink(buf.data(),TransferThread::internalStringTostring(destination).c_str())!=0) { const int terr=errno; const std::string &strError=strerror(terr); ULTRACOPIER_DEBUGCONSOLE(Ultracopier::DebugLevel_Warning,"["+std::to_string(id)+"] stop copy in error "+ - buf+"->"+TransferThread::internalStringTostring(destination)+ + buf.data()+"->"+TransferThread::internalStringTostring(destination)+ " "+strError+"("+std::to_string(terr)+")" ); readError=true; |