GNU C Library master sources branch release/2.26/master updated. glibc-2.26-21-g5253749

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=5253749232749adb535d9b2bf7d43173b191ebef

commit 5253749232749adb535d9b2bf7d43173b191ebef
Author: Florian Weimer <fweimer@redhat.com>
Date:   Mon Sep 4 11:44:10 2017 +0200

    Synchronize support/ infrastructure with master
    
    This commit updates the support/ subdirectory to
    commit 65329bd233db9d1b8b94e90734a564705b619260
    on the master branch.

diff --git a/support/namespace.h b/support/namespace.h
index 859c2fd..9eddb1a 100644
--- a/support/namespace.h
+++ b/support/namespace.h
@@ -66,7 +66,9 @@ struct support_chroot_configuration
 {
   /* File contents.  The files are not created if the field is
      NULL.  */
-  const char *resolv_conf;
+  const char *resolv_conf;      /* /etc/resolv.conf.  */
+  const char *hosts;            /* /etc/hosts.  */
+  const char *host_conf;        /* /etc/host.conf.  */
 };
 
 /* The result of the creation of a chroot.  */
@@ -78,8 +80,11 @@ struct support_chroot
   /* Path to the chroot directory.  */
   char *path_chroot;
 
-  /* Path to the /etc/resolv.conf file.  */
-  char *path_resolv_conf;
+  /* Paths to files in the chroot.  These are absolute and outside of
+     the chroot.  */
+  char *path_resolv_conf;       /* /etc/resolv.conf.  */
+  char *path_hosts;             /* /etc/hosts.  */
+  char *path_host_conf;         /* /etc/host.conf.  */
 };
 
 /* Create a chroot environment.  The returned data should be freed
diff --git a/support/support_chroot.c b/support/support_chroot.c
index c0807b3..f3ef551 100644
--- a/support/support_chroot.c
+++ b/support/support_chroot.c
@@ -24,6 +24,23 @@
 #include <support/test-driver.h>
 #include <support/xunistd.h>
 
+/* If CONTENTS is not NULL, write it to the file at DIRECTORY/RELPATH,
+   and store the name in *ABSPATH.  If CONTENTS is NULL, store NULL in
+   *ABSPATH.  */
+static void
+write_file (const char *directory, const char *relpath, const char *contents,
+            char **abspath)
+{
+  if (contents != NULL)
+    {
+      *abspath = xasprintf ("%s/%s", directory, relpath);
+      add_temp_file (*abspath);
+      support_write_file_string (*abspath, contents);
+    }
+  else
+    *abspath = NULL;
+}
+
 struct support_chroot *
 support_chroot_create (struct support_chroot_configuration conf)
 {
@@ -39,15 +56,10 @@ support_chroot_create (struct support_chroot_configuration conf)
   xmkdir (path_etc, 0777);
   add_temp_file (path_etc);
 
-  if (conf.resolv_conf != NULL)
-    {
-      /* Create an empty resolv.conf file.  */
-      chroot->path_resolv_conf = xasprintf ("%s/resolv.conf", path_etc);
-      add_temp_file (chroot->path_resolv_conf);
-      support_write_file_string (chroot->path_resolv_conf, conf.resolv_conf);
-    }
-  else
-    chroot->path_resolv_conf = NULL;
+  write_file (path_etc, "resolv.conf", conf.resolv_conf,
+              &chroot->path_resolv_conf);
+  write_file (path_etc, "hosts", conf.hosts, &chroot->path_hosts);
+  write_file (path_etc, "host.conf", conf.host_conf, &chroot->path_host_conf);
 
   free (path_etc);
 
@@ -67,5 +79,7 @@ support_chroot_free (struct support_chroot *chroot)
 {
   free (chroot->path_chroot);
   free (chroot->path_resolv_conf);
+  free (chroot->path_hosts);
+  free (chroot->path_host_conf);
   free (chroot);
 }

-----------------------------------------------------------------------

Summary of changes:
 support/namespace.h      |   11 ++++++++---
 support/support_chroot.c |   32 +++++++++++++++++++++++---------
 2 files changed, 31 insertions(+), 12 deletions(-)


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