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From 5325ab5813617f35f03806ec420829dde7104387 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 04/22] 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>
[rebased for systemd 243]
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
---
src/basic/glob-util.c | 12 ++++++++++++
src/test/test-glob-util.c | 16 ++++++++++++++++
src/tmpfiles/tmpfiles.c | 10 ++++++++++
3 files changed, 38 insertions(+)
diff --git a/src/basic/glob-util.c b/src/basic/glob-util.c
index 802ca8c655..23818a67c6 100644
--- a/src/basic/glob-util.c
+++ b/src/basic/glob-util.c
@@ -12,6 +12,12 @@
#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);
}
@@ -19,6 +25,7 @@ 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));
@@ -32,9 +39,14 @@ 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 9b3e73cce0..3790ba3be5 100644
--- a/src/test/test-glob-util.c
+++ b/src/test/test-glob-util.c
@@ -34,6 +34,12 @@ TEST(glob_first) {
assert_se(first == NULL);
}
+/* Don't fail if the standard library
+ * doesn't provide brace expansion */
+#ifndef GLOB_BRACE
+#define GLOB_BRACE 0
+#endif
+
TEST(glob_exists) {
char name[] = "/tmp/test-glob_exists.XXXXXX";
int fd = -EBADF;
@@ -61,11 +67,13 @@ TEST(glob_no_dot) {
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;
@@ -73,11 +81,19 @@ TEST(glob_no_dot) {
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 230ec09b97..2cc5f391d7 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -73,6 +73,12 @@
#include "user-util.h"
#include "virt.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
@@ -2434,7 +2440,9 @@ finish:
static int glob_item(Context *c, 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;
@@ -2461,7 +2469,9 @@ static int glob_item_recursively(
fdaction_t action) {
_cleanup_globfree_ glob_t g = {
+#ifdef GLOB_ALTDIRFUNC
.gl_opendir = (void *(*)(const char *)) opendir_nomod,
+#endif
};
int r = 0, k;
--
2.34.1
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