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From f8a239b182158ca0a537ba053cb0e6bad9c3a2fb Mon Sep 17 00:00:00 2001
From: Chen Qi <Qi.Chen@windriver.com>
Date: Mon, 25 Feb 2019 14:56:21 +0800
Subject: [PATCH 07/24] 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: Inappropriate [musl specific]

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
---
 src/basic/glob-util.c     | 13 ++++++++++++-
 src/test/test-glob-util.c | 16 ++++++++++++++++
 src/tmpfiles/tmpfiles.c   | 10 ++++++++++
 3 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/src/basic/glob-util.c b/src/basic/glob-util.c
index 32c53f8..ae358d9 100644
--- a/src/basic/glob-util.c
+++ b/src/basic/glob-util.c
@@ -13,6 +13,12 @@
 #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
+
 static void closedir_wrapper(void* v) {
         (void) closedir(v);
 }
@@ -20,6 +26,7 @@ static void closedir_wrapper(void* v) {
 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));
 
@@ -33,10 +40,14 @@ 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)
diff --git a/src/test/test-glob-util.c b/src/test/test-glob-util.c
index b4f4144..f0d474e 100644
--- a/src/test/test-glob-util.c
+++ b/src/test/test-glob-util.c
@@ -13,6 +13,12 @@
 #include "rm-rf.h"
 #include "tmpfile-util.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";
         int fd = -1;
@@ -40,11 +46,13 @@ static void test_glob_no_dot(void) {
         const char *fn;
 
         _cleanup_globfree_ glob_t g = {
+#ifdef GLOB_ALTDIRFUNC
                 .gl_closedir = closedir_wrapper,
                 .gl_readdir = (struct dirent *(*)(void *)) readdir_no_dot,
                 .gl_opendir = (void *(*)(const char *)) opendir,
                 .gl_lstat = lstat,
                 .gl_stat = stat,
+#endif
         };
 
         int r;
@@ -52,11 +60,19 @@ static void test_glob_no_dot(void) {
         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 d9d1cc1..477d1e3 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -63,6 +63,12 @@
 #include "umask-util.h"
 #include "user-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
  * properly owned directories beneath /tmp, /var/tmp, /run, which are
@@ -1839,7 +1845,9 @@ finish:
 
 static int glob_item(Item *i, action_t action) {
         _cleanup_globfree_ glob_t g = {
+#ifdef GLOB_ALTDIRFUNC
                 .gl_opendir = (void *(*)(const char *)) opendir_nomod,
+#endif
         };
         int r = 0, k;
         char **fn;
@@ -1859,7 +1867,9 @@ static int glob_item(Item *i, action_t action) {
 
 static int glob_item_recursively(Item *i, fdaction_t action) {
         _cleanup_globfree_ glob_t g = {
+#ifdef GLOB_ALTDIRFUNC
                 .gl_opendir = (void *(*)(const char *)) opendir_nomod,
+#endif
         };
         int r = 0, k;
         char **fn;
-- 
2.11.0