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-rw-r--r--openbsd-compat/dirname.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/openbsd-compat/dirname.c b/openbsd-compat/dirname.c
new file mode 100644
index 0000000..127bc2a
--- /dev/null
+++ b/openbsd-compat/dirname.c
@@ -0,0 +1,71 @@
+/* $OpenBSD: dirname.c,v 1.13 2005/08/08 08:05:33 espie Exp $ */
+
+/*
+ * Copyright (c) 1997, 2004 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* OPENBSD ORIGINAL: lib/libc/gen/dirname.c */
+
+#include "includes.h"
+#ifndef HAVE_DIRNAME
+
+#include <errno.h>
+#include <string.h>
+
+char *
+dirname(const char *path)
+{
+ static char dname[MAXPATHLEN];
+ size_t len;
+ const char *endp;
+
+ /* Empty or NULL string gets treated as "." */
+ if (path == NULL || *path == '\0') {
+ dname[0] = '.';
+ dname[1] = '\0';
+ return (dname);
+ }
+
+ /* Strip any trailing slashes */
+ endp = path + strlen(path) - 1;
+ while (endp > path && *endp == '/')
+ endp--;
+
+ /* Find the start of the dir */
+ while (endp > path && *endp != '/')
+ endp--;
+
+ /* Either the dir is "/" or there are no slashes */
+ if (endp == path) {
+ dname[0] = *endp == '/' ? '/' : '.';
+ dname[1] = '\0';
+ return (dname);
+ } else {
+ /* Move forward past the separating slashes */
+ do {
+ endp--;
+ } while (endp > path && *endp == '/');
+ }
+
+ len = endp - path + 1;
+ if (len >= sizeof(dname)) {
+ errno = ENAMETOOLONG;
+ return (NULL);
+ }
+ memcpy(dname, path, len);
+ dname[len] = '\0';
+ return (dname);
+}
+#endif