{"id":"curl","title":"curl License","reviewed_on":"2026-09-15","reviewer":"Giray Havur","text_source":"https://raw.githubusercontent.com/spdx/license-list-data/main/text/curl.txt","text_retrieved":true,"verdict":"created","summary":"The record models the curl license, an ISC-form permission notice with the MIT warranty and liability paragraph and a separate advertising bar. Use, copying, modification and distribution are permitted for any purpose with or without fee, the copyright notice and the permission notice must appear in all copies, and the copyright holder's name may not be used to promote products.","findings":[{"rubric":3,"severity":"major","field":"odrl:permission","description":"The grant reads: \"Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.\" The record permits reproduce, distribute, modify, derive, display, present, commercial use, derivative works and modified works, and the words with or without fee support dalicc:chargeDistributionFee. Sublicensing is not named.","action":"applied"},{"rubric":5,"severity":"major","field":"odrl:duty","description":"cc:Attribution and cc:Notice on distribute, modify and derive, from the notice condition in the grant sentence.","action":"applied"},{"rubric":4,"severity":"major","field":"odrl:prohibition","description":"The text reads: \"Except as contained in this notice, the name of a copyright holder shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization of the copyright holder.\" That is dalicc:promote as a prohibition, and the paragraph is also quoted in dalicc:additionalClauses. dalicc:ChangeLicense is prohibited because the text requires the license itself to travel with every copy, which is the reading IscLicense and BSD-3-Clause take of the same clause. The MIT record does not carry the prohibition although its text has the same requirement, so the library is not uniform here. (Corrected on 2026-09-15 by the verification pass: see the rubric 3 finding on relicensing below.)","action":"applied"},{"rubric":6,"severity":"minor","field":"dalicc:WarrantyDisclaimer","description":"The disclaimer paragraph is the MIT one with non-infringement of third party rights added; it is split into the warranty sentence and the liability sentence.","action":"applied"},{"rubric":7,"severity":"info","field":"cc:jurisdiction","description":"The text names no legal system and no term, so cc:jurisdiction is dalicc:worldwide and dalicc:validityType is dalicc:perpetual.","action":"none"},{"rubric":2,"severity":"info","field":"odrl:target","description":"One odrl:AssetCollection of dct:type dcmitype:Software, following IscLicense. The text licenses the software only.","action":"applied"},{"rubric":9,"severity":"info","field":"record","description":"The consistency check with the axioms of dg_default returned no conflicts.","action":"none"},{"rubric":10,"severity":"info","field":"record","description":"The deontic model is that of NTP and HPND. The difference is in the clause texts: curl carries the MIT disclaimer and states the advertising bar as a paragraph of its own.","action":"none"},{"rubric":3,"severity":"major","field":"odrl:permission","description":"Library convention 15: a licence that asks for no reciprocity and no source code asks only that the notice travels with the copy, which is a duty on the acts it governs and not a bar on putting the copy under other terms. dalicc:ChangeLicense is therefore a permission here, and the prohibition the earlier reading wrote is removed. The text reads: \"Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.\" The permission carries the dalicc:compliantLicense duty, as Apache-2.0 does, because the notice has to survive the relicensing.","action":"applied"}],"family":"Permissive: MIT, ISC and BSD-like","port_of":null,"variant_kind":null,"notes":"Modelled from the SPDX plain text. cc:legalcode is the COPYING file of the curl repository, which is the canonical text; the license has no separate steward, so there is no dct:publisher."}