From b45cf4923c7e1f1165925e9b4d7db2108faf2eae Mon Sep 17 00:00:00 2001
From: Emil Renner Berthing <systemd@esmil.dk>
Date: Mon, 23 Oct 2017 10:50:14 -0700
Subject: [PATCH 15/31] don't fail if GLOB_BRACE and GLOB_ALTDIRFUNC is not
 defined

If the standard library doesn't provide brace
expansion users just won't get it.

Dont use GNU GLOB extentions on non-glibc systems

Conditionalize use of GLOB_ALTDIRFUNC

Upstream-Status: Pending

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 src/basic/glob-util.c     | 20 +++++++++++++++++---
 src/test/test-glob-util.c | 17 +++++++++++++++--
 src/tmpfiles/tmpfiles.c   |  8 ++++++++
 3 files changed, 40 insertions(+), 5 deletions(-)

diff --git a/src/basic/glob-util.c b/src/basic/glob-util.c
index 6e80a1e23..312bb3fd1 100644
--- a/src/basic/glob-util.c
+++ b/src/basic/glob-util.c
@@ -28,13 +28,18 @@
 #include "macro.h"
 #include "path-util.h"
 #include "strv.h"
+/* Don't fail if the standard library
+ * doesn't provide brace expansion */
+#ifndef GLOB_BRACE
+#define GLOB_BRACE 0
+#endif
 
 int safe_glob(const char *path, int flags, glob_t *pglob) {
         int k;
 
+#ifdef GLOB_ALTDIRFUNC
         /* We want to set GLOB_ALTDIRFUNC ourselves, don't allow it to be set. */
         assert(!(flags & GLOB_ALTDIRFUNC));
-
         if (!pglob->gl_closedir)
                 pglob->gl_closedir = (void (*)(void *)) closedir;
         if (!pglob->gl_readdir)
@@ -45,10 +50,13 @@ int safe_glob(const char *path, int flags, glob_t *pglob) {
                 pglob->gl_lstat = lstat;
         if (!pglob->gl_stat)
                 pglob->gl_stat = stat;
-
+#endif
         errno = 0;
+#ifdef GLOB_ALTDIRFUNC
         k = glob(path, flags | GLOB_ALTDIRFUNC, NULL, pglob);
-
+#else
+        k = glob(path, flags, NULL, pglob);
+#endif
         if (k == GLOB_NOMATCH)
                 return -ENOENT;
         if (k == GLOB_NOSPACE)
@@ -61,6 +69,12 @@ int safe_glob(const char *path, int flags, glob_t *pglob) {
         return 0;
 }
 
+/* Don't fail if the standard library
+ * doesn't provide brace expansion */
+#ifndef GLOB_BRACE
+#define GLOB_BRACE 0
+#endif
+
 int glob_exists(const char *path) {
         _cleanup_globfree_ glob_t g = {};
         int k;
diff --git a/src/test/test-glob-util.c b/src/test/test-glob-util.c
index bd2f8fcfd..a10c77427 100644
--- a/src/test/test-glob-util.c
+++ b/src/test/test-glob-util.c
@@ -30,6 +30,11 @@
 #include "glob-util.h"
 #include "macro.h"
 #include "rm-rf.h"
+/* Don't fail if the standard library
+ * doesn't provide brace expansion */
+#ifndef GLOB_BRACE
+#define GLOB_BRACE 0
+#endif
 
 static void test_glob_exists(void) {
         char name[] = "/tmp/test-glob_exists.XXXXXX";
@@ -52,25 +57,33 @@ static void test_glob_exists(void) {
 static void test_glob_no_dot(void) {
         char template[] = "/tmp/test-glob-util.XXXXXXX";
         const char *fn;
-
         _cleanup_globfree_ glob_t g = {
+#ifdef GLOB_ALTDIRFUNC
                 .gl_closedir = (void (*)(void *)) closedir,
                 .gl_readdir = (struct dirent *(*)(void *)) readdir_no_dot,
                 .gl_opendir = (void *(*)(const char *)) opendir,
                 .gl_lstat = lstat,
                 .gl_stat = stat,
+#endif
         };
-
         int r;
 
         assert_se(mkdtemp(template));
 
         fn = strjoina(template, "/*");
+#ifdef GLOB_ALTDIRFUNC
         r = glob(fn, GLOB_NOSORT|GLOB_BRACE|GLOB_ALTDIRFUNC, NULL, &g);
+#else
+        r = glob(fn, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
+#endif
         assert_se(r == GLOB_NOMATCH);
 
         fn = strjoina(template, "/.*");
+#ifdef GLOB_ALTDIRFUNC
         r = glob(fn, GLOB_NOSORT|GLOB_BRACE|GLOB_ALTDIRFUNC, NULL, &g);
+#else
+        r = glob(fn, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
+#endif
         assert_se(r == GLOB_NOMATCH);
 
         (void) rm_rf(template, REMOVE_ROOT|REMOVE_PHYSICAL);
diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
index 38cbb739c..88cc543f0 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -76,6 +76,12 @@
 #include "umask-util.h"
 #include "user-util.h"
 #include "util.h"
+/* Don't fail if the standard library
+ * doesn't provide brace expansion */
+#ifndef GLOB_BRACE
+#define GLOB_BRACE 0
+#endif
+
 
 /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates
  * them in the file system. This is intended to be used to create
@@ -1288,7 +1294,9 @@ static int item_do_children(Item *i, const char *path, action_t action) {
 
 static int glob_item(Item *i, action_t action, bool recursive) {
         _cleanup_globfree_ glob_t g = {
+#ifdef GLOB_ALTDIRFUNC
                 .gl_opendir = (void *(*)(const char *)) opendir_nomod,
+#endif
         };
         int r = 0, k;
         char **fn;
-- 
2.13.0