X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=tools%2Fccanlint%2Flicenses.c;h=ac62ad3471a77fc376f2377317f56404d839db29;hb=d379e0ae835bdd047a5d277f7ded41f180134e27;hp=c2a4871d6c3ae2467b37ef105ae671c4339652d8;hpb=4c1a5ebd8720c26e264c89f8256df02a93db683a;p=ccan

diff --git a/tools/ccanlint/licenses.c b/tools/ccanlint/licenses.c
index c2a4871d..ac62ad34 100644
--- a/tools/ccanlint/licenses.c
+++ b/tools/ccanlint/licenses.c
@@ -2,6 +2,7 @@
 #include "ccanlint.h"
 #include <ccan/talloc/talloc.h>
 #include <ccan/str/str.h>
+#include <ccan/str_talloc/str_talloc.h>
 
 const struct license_info licenses[] = {
 	{ "LGPLv2+", "LGPL",
@@ -64,6 +65,12 @@ const struct license_info licenses[] = {
 	    "without warranty"
 	  }
 	},
+	{ "CC0", "CC0",
+	  { "Waiver.",
+	    "unconditionally waives",
+	    NULL
+	  }
+	},
 	{ "Public domain", "Public domain",
 	  { NULL, NULL, NULL  }
 	},
@@ -74,33 +81,87 @@ const struct license_info licenses[] = {
 
 /* License compatibilty chart (simplified: we don't test that licenses between
  * files are compatible). */
+#define O true
+#define X false
 bool license_compatible[LICENSE_UNKNOWN+1][LICENSE_UNKNOWN] = {
-/*       LGPL2+ LGPL2 LGPL3 LGPL  GPL2+ GPL2  GPL3  GPL   BSD   MIT   PD   */
+/*     LGPL2+   LGPL3   GPL2+   GPL3     BSD     CC0
+            LGPL2    LGPL   GPL2     GPL     MIT     PD   */
 /* _info says: LGPL2+ */
-	{ true, false,false,true, false,false,false,false,true, true, true },
+	{ O,  X,  X,  O,  X,  X,  X,  X,  O,  O,  O,  O },
 /* _info says: LGPL2 only */
-	{ true, true, false,true, false,false,false,false,true, true, true },
+	{ O,  O,  X,  O,  X,  X,  X,  X,  O,  O,  O,  O },
 /* _info says: LGPL3 (or any later version) */
-	{ true, false,true, true, false,false,false,false,true, true, true },
+	{ O,  X,  O,  O,  X,  X,  X,  X,  O,  O,  O,  O },
 /* _info says: LGPL (no version specified) */
-	{ true, true, true, true, false,false,false,false,true, true, true },
+	{ O,  O,  O,  O,  X,  X,  X,  X,  O,  O,  O,  O },
 /* _info says: GPL2+ */
-	{ true, true, true, true, true, false,false,true, true, true, true },
+	{ O,  O,  O,  O,  O,  X,  X,  O,  O,  O,  O,  O },
 /* _info says: GPL2 only */
-	{ true, true, true, true, true, true, false,true, true, true, true },
+	{ O,  O,  O,  O,  O,  O,  X,  O,  O,  O,  O,  O },
 /* _info says: GPL3 (or any later version) */
-	{ true, true, true, true, true, false,true, true, true, true, true },
+	{ O,  O,  O,  O,  O,  X,  O,  O,  O,  O,  O,  O },
 /* _info says: GPL (unknown version) */
-	{ true, true, true, true, true, true, true, true, true, true, true },
+	{ O,  O,  O,  O,  O,  O,  O,  O,  O,  O,  O,  O },
 /* _info says: BSD (3-clause) */
-	{ false,false,false,false,false,false,false,false,true, true, true },
+	{ X,  X,  X,  X,  X,  X,  X,  X,  O,  O,  O,  O },
 /* _info says: MIT */
-	{ false,false,false,false,false,false,false,false,false,true, true },
+	{ X,  X,  X,  X,  X,  X,  X,  X,  X,  O,  O,  O },
+/* _info says: CC0 */
+	{ X,  X,  X,  X,  X,  X,  X,  X,  X,  X,  O,  O },
 /* _info says: Public domain */
-	{ false,false,false,false,false,false,false,false,false,false,true },
+	{ X,  X,  X,  X,  X,  X,  X,  X,  X,  X,  O,  O },
 /* _info says something we don't understand */
-	{ false,false,false,false,false,false,false,false,false,false,true }
+	{ X,  X,  X,  X,  X,  X,  X,  X,  X,  X,  O,  O }
 };
+#undef X
+#undef O
+
+/* See GPLv2 and v2 (basically same wording) for interpreting versions:
+ * the "any later version" means the recepient can choose. */
+enum license which_license(struct doc_section *d)
+{
+	if (!d)
+		return LICENSE_UNKNOWN;
+
+	/* This means "user chooses what version", including GPLv1! */
+	if (streq(d->lines[0], "GPL"))
+		return LICENSE_GPL;
+	/* This means "v2 only". */
+	if (streq(d->lines[0], "GPLv2"))
+		return LICENSE_GPLv2;
+	/* This means "v2 or above" at user's choice. */
+	if (streq(d->lines[0], "GPL (v2 or any later version)"))
+		return LICENSE_GPLv2_PLUS;
+	/* This means "v3 or above" at user's choice. */
+	if (streq(d->lines[0], "GPL (v3 or any later version)"))
+		return LICENSE_GPLv3;
+
+	/* This means "user chooses what version" */
+	if (streq(d->lines[0], "LGPL"))
+		return LICENSE_LGPL;
+	/* This means "v2.1 only". */
+	if (streq(d->lines[0], "LGPLv2.1"))
+		return LICENSE_LGPLv2;
+	/* This means "v2.1 or above" at user's choice. */
+	if (streq(d->lines[0], "LGPL (v2.1 or any later version)"))
+		return LICENSE_LGPLv2_PLUS;
+	/* This means "v3 or above" at user's choice. */
+	if (streq(d->lines[0], "LGPL (v3 or any later version)"))
+		return LICENSE_LGPLv3;
+
+	if (streq(d->lines[0], "BSD-MIT") || streq(d->lines[0], "MIT"))
+		return LICENSE_MIT;
+	if (streq(d->lines[0], "BSD (3 clause)"))
+		return LICENSE_BSD;
+	if (streq(d->lines[0], "CC0"))
+		return LICENSE_CC0;
+	if (strreg(NULL, d->lines[0], "CC0 \\([Pp]ublic [Dd]omain\\)", NULL))
+		return LICENSE_CC0;
+	if (strreg(NULL, d->lines[0], "[Pp]ublic [Dd]omain"))
+		return LICENSE_PUBLIC_DOMAIN;
+
+	return LICENSE_UNKNOWN;
+}
 
 const char *get_ccan_simplified(struct ccan_file *f)
 {
@@ -141,3 +202,16 @@ bool find_boilerplate(struct ccan_file *f, enum license license)
 	}
 	return true;
 }
+
+struct doc_section *find_license_tag(const struct manifest *m)
+{
+	struct doc_section *d;
+
+	list_for_each(get_ccan_file_docs(m->info_file), d, list) {
+		if (!streq(d->function, m->modname))
+			continue;
+		if (streq(d->type, "license"))
+			return d;
+	}
+	return NULL;
+}