From fca8bba289665715495b5962a5227efb2315b734 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik@fiktivkod.org>
Date: Sat, 20 Nov 2010 08:06:05 +0100
Subject: [PATCH] path.c: Added is_dir function

---
 src/path.c    | 11 +++++++++++
 src/path.h    |  2 ++
 test/t_path.c |  8 ++++++++
 3 files changed, 21 insertions(+)

diff --git a/src/path.c b/src/path.c
index 5c7f3b8..fd43bd1 100644
--- a/src/path.c
+++ b/src/path.c
@@ -14,6 +14,8 @@
 
 #include <string.h>
 #include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 
 #include "debug.h"
 #include "strbuf.h"
@@ -56,6 +58,15 @@ int is_abspath(const char *path) {
 	return 1;
 }
 
+int is_dir(const char *path) {
+
+    struct stat st;
+    
+    if (path && stat(path, &st) >= 0)
+        return S_ISDIR(st.st_mode);
+    return 0;
+}
+
 static char* expand_home() {
 
     char *home = getenv("HOME");
diff --git a/src/path.h b/src/path.h
index 483e86b..5874e35 100644
--- a/src/path.h
+++ b/src/path.h
@@ -16,6 +16,8 @@
 
 int is_abspath(const char *path);
 
+int is_dir(const char *path);
+
 char* path_normalize(const char *base, const char *name, unsigned char dir);
 
 #endif /* __PATH_H */
diff --git a/test/t_path.c b/test/t_path.c
index f9c5186..456713b 100644
--- a/test/t_path.c
+++ b/test/t_path.c
@@ -51,6 +51,13 @@ void test_isabspath() {
     assert(is_abspath("/ab/..xy/file") ==1);
 }
 
+void test_isdir() {
+
+    assert(is_dir("t_path.c") == 0);
+    assert(is_dir("../src") == 1);
+    assert(is_dir("/") == 1);
+}
+
 void test_basename() {
 
     int i;
@@ -98,6 +105,7 @@ void test_dirname() {
 int main(int argc, char *argv[]) {
 
     test_isabspath();
+    test_isdir();
     test_normalize();
     test_basename();
     test_dirname();