1 files changed, 54 insertions, 0 deletions
diff --git a/src/libs/libgroff/getcwd.c b/src/libs/libgroff/getcwd.c
new file mode 100644
index 0000000..dd8b578
--- /dev/null
+++ b/src/libs/libgroff/getcwd.c
@@ -0,0 +1,54 @@
+/* Copyright (C) 2000-2020 Free Software Foundation, Inc.
+     Written by James Clark (jjc@jclark.com)
+
+This file is part of groff.
+
+groff is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+groff 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 General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+/* Partial emulation of getcwd in terms of getwd. */
+
+#include <config.h>
+#include <sys/param.h>
+#include <string.h>
+#include <errno.h>
+
+char *getwd();
+
+char *getcwd(buf, size)
+     char *buf;
+     int size;			/* POSIX says this should be size_t */
+{
+  if (size <= 0) {
+    errno = EINVAL;
+    return 0;
+  }
+  else {
+    char mybuf[MAXPATHLEN];
+    int saved_errno = errno;
+
+    errno = 0;
+    if (!getwd(mybuf)) {
+      if (errno == 0)
+	;       /* what to do? */
+      return 0;
+    }
+    errno = saved_errno;
+    if (strlen(mybuf) + 1 > size) {
+      errno = ERANGE;
+      return 0;
+    }
+    strcpy(buf, mybuf);
+    return buf;
+  }
+}