[build] Rename gPXE to iPXE

Access to the gpxe.org and etherboot.org domains and associated
resources has been revoked by the registrant of the domain.  Work
around this problem by renaming project from gPXE to iPXE, and
updating URLs to match.

Also update README, LOG and COPYRIGHTS to remove obsolete information.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

1 files changed, 182 insertions, 0 deletions

diff --git a/src/include/ipxe/uri.h b/src/include/ipxe/uri.h
new file mode 100644
index 000000000..cb0898e42
--- /dev/null
+++ b/src/include/ipxe/uri.h
@@ -0,0 +1,182 @@
+#ifndef _IPXE_URI_H
+#define _IPXE_URI_H
+
+/** @file
+ *
+ * Uniform Resource Identifiers
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <ipxe/refcnt.h>
+
+/** A Uniform Resource Identifier
+ *
+ * Terminology for this data structure is as per uri(7), except that
+ * "path" is defined to include the leading '/' for an absolute path.
+ *
+ * Note that all fields within a URI are optional and may be NULL.
+ *
+ * The pointers to the various fields are packed together so they can
+ * be accessed in array fashion in some places in uri.c where doing so
+ * saves significant code size.
+ *
+ * Some examples are probably helpful:
+ *
+ *   http://www.ipxe.org/wiki :
+ *
+ *   scheme = "http", host = "www.ipxe.org", path = "/wiki"
+ *
+ *   /var/lib/tftpboot :
+ *
+ *   path = "/var/lib/tftpboot"
+ *
+ *   mailto:bob@nowhere.com :
+ *
+ *   scheme = "mailto", opaque = "bob@nowhere.com"
+ *
+ *   ftp://joe:secret@insecure.org:8081/hidden/path/to?what=is#this
+ *
+ *   scheme = "ftp", user = "joe", password = "secret",
+ *   host = "insecure.org", port = "8081", path = "/hidden/path/to",
+ *   query = "what=is", fragment = "this"
+ */
+struct uri {
+	/** Reference count */
+	struct refcnt refcnt;
+	/** Scheme */
+	const char *scheme;
+	/** Opaque part */
+	const char *opaque;
+	/** User name */
+	const char *user;
+	/** Password */
+	const char *password;
+	/** Host name */
+	const char *host;
+	/** Port number */
+	const char *port;
+	/** Path */
+	const char *path;
+	/** Query */
+	const char *query;
+	/** Fragment */
+	const char *fragment;
+} __attribute__ (( packed ));
+
+/** A field in a URI
+ *
+ * The order of the indices in this enumeration must match the order
+ * of the fields in the URI structure.
+ */
+enum {
+	URI_SCHEME = 0,		URI_SCHEME_BIT = ( 1 << URI_SCHEME ),
+	URI_OPAQUE = 1,		URI_OPAQUE_BIT = ( 1 << URI_OPAQUE ),
+	URI_USER = 2,		URI_USER_BIT = ( 1 << URI_USER ),
+	URI_PASSWORD = 3,	URI_PASSWORD_BIT = ( 1 << URI_PASSWORD ),
+	URI_HOST = 4,		URI_HOST_BIT = ( 1 << URI_HOST ),
+	URI_PORT = 5,		URI_PORT_BIT = ( 1 << URI_PORT ),
+	URI_PATH = 6,		URI_PATH_BIT = ( 1 << URI_PATH ),
+	URI_QUERY = 7,		URI_QUERY_BIT = ( 1 << URI_QUERY ),
+	URI_FRAGMENT = 8,	URI_FRAGMENT_BIT = ( 1 << URI_FRAGMENT ),
+
+	URI_FIRST_FIELD = URI_SCHEME,
+	URI_LAST_FIELD = URI_FRAGMENT,
+};
+
+/** Extract field from URI */
+#define uri_get_field( uri, field )	(&uri->scheme)[field]
+
+/** All URI fields */
+#define URI_ALL		( URI_SCHEME_BIT | URI_OPAQUE_BIT | URI_USER_BIT | \
+			  URI_PASSWORD_BIT | URI_HOST_BIT | URI_PORT_BIT | \
+			  URI_PATH_BIT | URI_QUERY_BIT | URI_FRAGMENT_BIT )
+
+/** URI fields that should be decoded on storage */
+#define URI_ENCODED	( URI_USER_BIT | URI_PASSWORD_BIT | URI_HOST_BIT | \
+			  URI_PATH_BIT | URI_QUERY_BIT | URI_FRAGMENT_BIT )
+
+/**
+ * URI is an absolute URI
+ *
+ * @v uri			URI
+ * @ret is_absolute		URI is absolute
+ *
+ * An absolute URI begins with a scheme, e.g. "http:" or "mailto:".
+ * Note that this is a separate concept from a URI with an absolute
+ * path.
+ */
+static inline int uri_is_absolute ( struct uri *uri ) {
+	return ( uri->scheme != NULL );
+}
+
+/**
+ * URI has an absolute path
+ *
+ * @v uri			URI
+ * @ret has_absolute_path	URI has an absolute path
+ *
+ * An absolute path begins with a '/'.  Note that this is a separate
+ * concept from an absolute URI.  Note also that a URI may not have a
+ * path at all.
+ */
+static inline int uri_has_absolute_path ( struct uri *uri ) {
+	return ( uri->path && ( uri->path[0] == '/' ) );
+}
+
+/**
+ * URI has a relative path
+ *
+ * @v uri			URI
+ * @ret has_relative_path	URI has a relative path
+ *
+ * A relative path begins with something other than a '/'.  Note that
+ * this is a separate concept from a relative URI.  Note also that a
+ * URI may not have a path at all.
+ */
+static inline int uri_has_relative_path ( struct uri *uri ) {
+	return ( uri->path && ( uri->path[0] != '/' ) );
+}
+
+/**
+ * Increment URI reference count
+ *
+ * @v uri		URI, or NULL
+ * @ret uri		URI as passed in
+ */
+static inline __attribute__ (( always_inline )) struct uri *
+uri_get ( struct uri *uri ) {
+	ref_get ( &uri->refcnt );
+	return uri;
+}
+
+/**
+ * Decrement URI reference count
+ *
+ * @v uri		URI, or NULL
+ */
+static inline __attribute__ (( always_inline )) void
+uri_put ( struct uri *uri ) {
+	ref_put ( &uri->refcnt );
+}
+
+extern struct uri *cwuri;
+
+extern struct uri * parse_uri ( const char *uri_string );
+extern unsigned int uri_port ( struct uri *uri, unsigned int default_port );
+extern int unparse_uri ( char *buf, size_t size, struct uri *uri,
+			 unsigned int fields );
+extern struct uri * uri_dup ( struct uri *uri );
+extern char * resolve_path ( const char *base_path,
+			     const char *relative_path );
+extern struct uri * resolve_uri ( struct uri *base_uri,
+				  struct uri *relative_uri );
+extern void churi ( struct uri *uri );
+extern size_t uri_encode ( const char *raw_string, char *buf, ssize_t len,
+			   int field );
+extern size_t uri_decode ( const char *encoded_string, char *buf, ssize_t len );
+
+#endif /* _IPXE_URI_H */