* xreadlink.c - safe implementation of readlink.
* Returns a NULL on failure...
*
- * Licensed under GPLv2, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
*/
#include "libbb.h"
+/* some systems (eg Hurd) does not have MAXSYMLINKS definition,
+ * set it to some reasonable value if it isn't defined */
+#ifndef MAXSYMLINKS
+# define MAXSYMLINKS 20
+#endif
+
/*
* NOTE: This function returns a malloced char* that you will have to free
* yourself.
return buf;
}
-/* UNUSED */
-#if 0
char* FAST_FUNC xmalloc_realpath(const char *path)
{
-#if defined(__GLIBC__) && !defined(__UCLIBC__)
+#if defined(__GLIBC__) || \
+ (defined(__UCLIBC__) && UCLIBC_VERSION >= KERNEL_VERSION(0, 9, 31))
/* glibc provides a non-standard extension */
+ /* new: POSIX.1-2008 specifies this behavior as well */
return realpath(path, NULL);
#else
char buf[PATH_MAX+1];
- /* on error returns NULL (xstrdup(NULL) ==NULL) */
+ /* on error returns NULL (xstrdup(NULL) == NULL) */
return xstrdup(realpath(path, buf));
#endif
}
-#endif