Repatch (from linux) of OSX IRAF

1 files changed, 35 insertions, 0 deletions

diff --git a/unix/boot/bootlib/ossymlink.c b/unix/boot/bootlib/ossymlink.c
new file mode 100644
index 00000000..991b8359
--- /dev/null
+++ b/unix/boot/bootlib/ossymlink.c
@@ -0,0 +1,35 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+ */
+
+#include <unistd.h>
+#include <iraf.h>
+
+#ifndef VMS
+#include <sys/types.h>
+#include <sys/stat.h>
+#endif
+
+/* OS_SYMLINK -- Determine if a file is a symbolic link.
+ */
+int
+os_symlink (
+  char	*fname,			/* file to be tested */
+  char	*valbuf,		/* buffer to receive link path, else NULL */
+  int	maxch 
+)
+{
+#ifndef VMS
+	struct	stat fi;
+	int	n;
+
+	if (lstat (fname, &fi) == 0)
+	    if ((fi.st_mode & S_IFMT) == S_IFLNK) {
+		if (valbuf && maxch)
+		    if ((n = readlink (fname, valbuf, maxch)) > 0)
+			valbuf[n] = '\0';
+		return (1);
+	    }
+#endif
+
+	return (0);
+}