[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resources has been revoked by the registrant of the domain.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, 87 insertions, 0 deletions

diff --git a/src/include/ipxe/posix_io.h b/src/include/ipxe/posix_io.h
new file mode 100644
index 000000000..11f3bb5c9
--- /dev/null
+++ b/src/include/ipxe/posix_io.h
@@ -0,0 +1,87 @@
+#ifndef _IPXE_POSIX_IO_H
+#define _IPXE_POSIX_IO_H
+
+/** @file
+ *
+ * POSIX-like I/O
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <ipxe/uaccess.h>
+
+/** Minimum file descriptor that will ever be allocated */
+#define POSIX_FD_MIN ( 1 )
+
+/** Maximum file descriptor that will ever be allocated */
+#define POSIX_FD_MAX ( 31 )
+
+/** File descriptor set as used for select() */
+typedef uint32_t fd_set;
+
+extern int open ( const char *uri_string );
+extern ssize_t read_user ( int fd, userptr_t buffer,
+			   off_t offset, size_t len );
+extern int select ( fd_set *readfds, int wait );
+extern ssize_t fsize ( int fd );
+extern int close ( int fd );
+
+/**
+ * Zero a file descriptor set
+ *
+ * @v set		File descriptor set
+ */
+static inline __attribute__ (( always_inline )) void
+FD_ZERO ( fd_set *set ) {
+	*set = 0;
+}
+
+/**
+ * Set a bit within a file descriptor set
+ *
+ * @v fd		File descriptor
+ * @v set		File descriptor set
+ */
+static inline __attribute__ (( always_inline )) void
+FD_SET ( int fd, fd_set *set ) {
+	*set |= ( 1 << fd );
+}
+
+/**
+ * Clear a bit within a file descriptor set
+ *
+ * @v fd		File descriptor
+ * @v set		File descriptor set
+ */
+static inline __attribute__ (( always_inline )) void
+FD_CLR ( int fd, fd_set *set ) {
+	*set &= ~( 1 << fd );
+}
+
+/**
+ * Test a bit within a file descriptor set
+ *
+ * @v fd		File descriptor
+ * @v set		File descriptor set
+ * @ret is_set		Corresponding bit is set
+ */
+static inline __attribute__ (( always_inline )) int
+FD_ISSET ( int fd, fd_set *set ) {
+	return ( *set & ( 1 << fd ) );
+}
+
+/**
+ * Read data from file
+ *
+ * @v fd		File descriptor
+ * @v buf		Data buffer
+ * @v len		Maximum length to read
+ * @ret len		Actual length read, or negative error number
+ */
+static inline ssize_t read ( int fd, void *buf, size_t len ) {
+	return read_user ( fd, virt_to_user ( buf ), 0, len );
+}
+
+#endif /* _IPXE_POSIX_IO_H */