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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
commit758f820bcc0f68aeebac1717e537ca13a320b909 (patch)
tree48111ece75cf4f98316848b37a7e26356e00669e /lib/basename-lgpl.c
parentInitial commit. (diff)
downloadcoreutils-758f820bcc0f68aeebac1717e537ca13a320b909.tar.xz
coreutils-758f820bcc0f68aeebac1717e537ca13a320b909.zip
Adding upstream version 9.1.upstream/9.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/basename-lgpl.c')
-rw-r--r--lib/basename-lgpl.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/lib/basename-lgpl.c b/lib/basename-lgpl.c
new file mode 100644
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--- /dev/null
+++ b/lib/basename-lgpl.c
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+/* basename.c -- return the last element in a file name
+
+ Copyright (C) 1990, 1998-2001, 2003-2006, 2009-2022 Free Software
+ Foundation, Inc.
+
+ This file is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ This file is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+/* Specification. */
+#include "basename-lgpl.h"
+
+#include <stdbool.h>
+#include <string.h>
+
+#include "filename.h"
+
+char *
+last_component (char const *name)
+{
+ char const *base = name + FILE_SYSTEM_PREFIX_LEN (name);
+ char const *p;
+ bool last_was_slash = false;
+
+ while (ISSLASH (*base))
+ base++;
+
+ for (p = base; *p; p++)
+ {
+ if (ISSLASH (*p))
+ last_was_slash = true;
+ else if (last_was_slash)
+ {
+ base = p;
+ last_was_slash = false;
+ }
+ }
+
+ return (char *) base;
+}
+
+size_t
+base_len (char const *name)
+{
+ size_t len;
+ size_t prefix_len = FILE_SYSTEM_PREFIX_LEN (name);
+
+ for (len = strlen (name); 1 < len && ISSLASH (name[len - 1]); len--)
+ continue;
+
+ if (DOUBLE_SLASH_IS_DISTINCT_ROOT && len == 1
+ && ISSLASH (name[0]) && ISSLASH (name[1]) && ! name[2])
+ return 2;
+
+ if (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE && prefix_len
+ && len == prefix_len && ISSLASH (name[prefix_len]))
+ return prefix_len + 1;
+
+ return len;
+}