19990502 sourceware import

1 files changed, 54 insertions, 0 deletions

diff --git a/libiberty/getcwd.c b/libiberty/getcwd.c
new file mode 100644
index 0000000000..06d55c04f5
--- /dev/null
+++ b/libiberty/getcwd.c
@@ -0,0 +1,54 @@
+/* Emulate getcwd using getwd.
+   This function is in the public domain. */
+
+/*
+NAME
+	getcwd -- get absolute pathname for current working directory
+
+SYNOPSIS
+	char *getcwd (char pathname[len], len)
+
+DESCRIPTION
+	Copy the absolute pathname for the current working directory into
+	the supplied buffer and return a pointer to the buffer.  If the 
+	current directory's path doesn't fit in LEN characters, the result
+	is NULL and errno is set.
+
+BUGS
+	Emulated via the getwd() call, which is reasonable for most
+	systems that do not have getcwd().
+
+*/
+
+#include "config.h"
+
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#include <errno.h>
+
+extern char *getwd ();
+extern int errno;
+
+#ifndef MAXPATHLEN
+#define MAXPATHLEN 1024
+#endif
+
+char *
+getcwd (buf, len)
+  char *buf;
+  int len;
+{
+  char ourbuf[MAXPATHLEN];
+  char *result;
+
+  result = getwd (ourbuf);
+  if (result) {
+    if (strlen (ourbuf) >= len) {
+      errno = ERANGE;
+      return 0;
+    }
+    strcpy (buf, ourbuf);
+  }
+  return buf;
+}