1 files changed, 96 insertions, 0 deletions

diff --git a/util-linux/e2p/fsetflags.c b/util-linux/e2p/fsetflags.c
new file mode 100644
index 000000000..40e7292dd
--- /dev/null
+++ b/util-linux/e2p/fsetflags.c
@@ -0,0 +1,96 @@
+/*
+ * fsetflags.c          - Set a file flags on an ext2 file system
+ *
+ * Copyright (C) 1993, 1994  Remy Card <card@masi.ibp.fr>
+ *                           Laboratoire MASI, Institut Blaise Pascal
+ *                           Universite Pierre et Marie Curie (Paris VI)
+ *
+ * This file can be redistributed under the terms of the GNU Library General
+ * Public License
+ */
+
+/*
+ * History:
+ * 93/10/30     - Creation
+ */
+
+#if HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#if HAVE_EXT2_IOCTLS
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#endif
+
+#include "e2p.h"
+
+/* 
+ * Deal with lame glibc's that define this function without actually 
+ * implementing it.  Can you say "attractive nuisance", boys and girls?
+ * I knew you could!
+ */
+#ifdef __linux__
+#undef HAVE_CHFLAGS
+#endif
+
+#ifdef O_LARGEFILE
+#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE)
+#else
+#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK)
+#endif
+
+int fsetflags (const char * name, unsigned long flags)
+{
+        struct stat buf;
+#if HAVE_CHFLAGS && !(APPLE_DARWIN && HAVE_EXT2_IOCTLS)
+        unsigned long bsd_flags = 0;
+
+#ifdef UF_IMMUTABLE
+        if (flags & EXT2_IMMUTABLE_FL)
+                bsd_flags |= UF_IMMUTABLE;
+#endif
+#ifdef UF_APPEND
+        if (flags & EXT2_APPEND_FL)
+                bsd_flags |= UF_APPEND;
+#endif
+#ifdef UF_NODUMP
+        if (flags & EXT2_NODUMP_FL)
+                bsd_flags |= UF_NODUMP;
+#endif
+
+        return chflags (name, bsd_flags);
+#else
+#if HAVE_EXT2_IOCTLS
+        int fd, r, f, save_errno = 0;
+
+        if (!stat(name, &buf) &&
+            !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)) {
+                goto notsupp;
+        }
+#if !APPLE_DARWIN
+        fd = open (name, OPEN_FLAGS);
+        if (fd == -1)
+                return -1;
+        f = (int) flags;
+        r = ioctl (fd, EXT2_IOC_SETFLAGS, &f);
+        if (r == -1)
+                save_errno = errno;
+        close (fd);
+        if (save_errno)
+                errno = save_errno;
+#else
+   f = (int) flags;
+   return syscall(SYS_fsctl, name, EXT2_IOC_SETFLAGS, &f, 0);
+#endif
+        return r;
+#endif /* HAVE_EXT2_IOCTLS */
+#endif
+notsupp:
+        errno = EOPNOTSUPP;
+        return -1;
+}