Re-licensing liability of a work? Assume a person licences a work to the world as of the terms of a licence O . Basically anyone can use the work but must obey terms O . A person takes it and licences it to third person under the terms L which being violate O . Now this other person uses this work commercially without knowing it was actually infringing the actual copyright holder's copyright . Which of the two is liable for infringement and will this another be forced to follow terms of O even if it causes huge loss ? For example someone licences LGPL-licenced work to another person under MIT licence who makes a billion dollar closed source software out of it . Will he be forced to follow LGPL and release source code or refund all sales ?
The origin of a lawsuit will not be a license, but copyright law. Licenses are exemptions from copyright law enforcement. The original author holds the copyright. That person did offer a license O to the third party, but that third party did not take up that offer. Hence, there is a copyright violation, and a cause for a lawsuit. It is up to the original author what might be demanded there, but the usual demand is such suits is for damages. However, it is common practice to settle the case amicably outside the courts by agreeing to the original license O, although this may come with undisclosed extra terms. The problem with a lawsuit is that enforcement of the original license offer O is hard, because copyright law generally does not cover such licensing. The license terms L are mostly irrelevant as that person is not a copyright owner so there is nothing to be licensed.
No, it does not fall under fair use: It is commercial use in nature It is a copyrighted work It is hard to say what portion of the copyrighted work you'd be using based on your description, so test three is inconclusive It could be argued in your favor that the infringement would not have an impact on their potential market, but it could potentially impact the value If discovered the owner of the copyright could pursue action against the company you work for.
It depends on the license the code comes under and whether theres a copyright-assignment requirement for that project. In the case of the Linux kernel, the license is the GPLv2, and there is no copyright assignment requirement - so anyone who can prove ownership of code within the shipped binary (important caveat there - the Linux kernel is configurable, so parts of it can be excluded from the binary) can pursue a claim of copyright infringement if the source code is not distributed according to the license. With the case of things like GCC (until the most recent version), while the project uses the GPL (v3), it also required copyright assignment to the FSF, meaning the original authors do not hold the copyright and thus have no standing to sue (authors rights not-with-standing). They have now dropped this requirement in the latest GCC version, but it stands for older versions. As copyright holder, you have no ability to actually force the binary distributor to comply with the terms of the license - you can merely threaten them with, and pursue, a claim of copyright infringement. In court, you can sue to stop them from infringing further and to pay punitive and actual damages. You may be able to get them to agree to conform with the license terms, but its highly doubtful that a court would agree to force them to conform with the license terms (there has yet to be a copyright-infringement case orientated around open source software that has resulted in a court forcing the infringing company to GPL their own code they were trying to protect by non-compliance). So, to answer your question, theres no actual avenue here which results in you obtaining the source code you have copyright ownership of - the legal actions you can take are ones of stopping infringement and claiming damages. You might be able to come to an out-of-court settlement or a voluntary agreement to provide the code, but court actions will be about stopping the infringement and damages.
Generally not. There is a notion in copyright law called the first-sale doctrine in which after a particular copy of a copyrighted work is legitimately sold, the purchaser can sell, lend, lease, give away, or otherwise dispose of the copy as he sees fit. Copyright does not give the copyright holder exclusive rights to authorize resales. See 17 U.S.C. § 109 for the relevant US law; in other countries the same principle is sometimes called exhaustion of rights. There are limits to the doctrine. In the US, it does not allow for for-profit software rental (for most software) or musical record rentals. Moreover, software companies noticed the part where the doctrine applies to a transfer of title (i.e. an actual sale). If you read a typical software EULA, it is generally quite explicit that the software was licensed to you instead of sold; this is why. Courts in the US have often enforced these provisions (particularly if the license imposes limits like "you can't resell it"); European courts have, as far as I know, been far less willing to accept that argument. However, as a general rule resale is specifically not forbidden by copyright.
Do you have an explicit permission by the artist? Does the artist give a blanket permission to anyone which covers this kind of use of their work (a license)? If no, then you commit a copyright violation when you use their work for your blog. This applies to practically any country which signed the Berne convention which is almost everywhere in the world. Having no commercial interest is usually not an excuse to violate copyright. Regarding which jurisdiction applies when you, your website and the copyright holder are in different countries: I opened a new question about this.
Your title and your question are totally different. If someone pirates a book, makes printed copies, and sells them for profit, that's the point where it switches from plain copyright infringement to being criminal copyright infringement. Which means jail instead of paying damages is possible. If you buy one of these printed copies, not knowing that they have been created illegally, and not being willfully ignorant that the printed copies were created illegal, then you didn't commit copyright infringement yourself. Since you are asking the question, it's obvious that you now know that there was copyright infringement, and buying any more copies would be encouraging copyright infringement with no excuses for you. You can be sued for damages. It is unlikely to happen since suing takes likely more effort than getting any damages from you is worth. The correct thing to do is ask the seller for your money back and destroy the copies. If they don't refund your money you can inform the copyright holder.
We can't really know until the ruling is made. The Supreme Court might issue a ruling that encompasses all software APIs, or may predicate its ruling on this more specific situation, e.g. that because Oracle's library is so extensive its structure can be copyrighted even if that does not necessarily mean that any individual function signature can be copyrighted. They could also decide based on something unrelated to the heart of the copyright question - skimming through the petition for a writ of certiorari, they could make a decision based on the original implied license from Sun, for example. Hopefully their decision will answer the copyright question of function declarations completely, but it isn't required to.
Attribution is not a legal requirement If company A owns IP (copyright and trademarks in this case), they can licence it to company N on whatever terms are mutually acceptable. They may require company N to attribute their IP or they may not.