libcsupport: Split passwd/group support

1 files changed, 78 insertions, 0 deletions

diff --git a/cpukit/libcsupport/src/getgrent.c b/cpukit/libcsupport/src/getgrent.c
new file mode 100644
index 0000000000..9b11e2ee08
--- /dev/null
+++ b/cpukit/libcsupport/src/getgrent.c
@@ -0,0 +1,78 @@
+/**
+ *  @file
+ *
+ *  @brief User Database Access Routines
+ *  @ingroup libcsupport
+ */
+
+/*
+ *  Copyright (c) 1999-2009 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
+ *  Copyright (c) 1999-2013 Joel Sherrill <joel.sherrill@OARcorp.com>
+ *  Copyright (c) 2000-2001 Fernando Ruiz Casas <fernando.ruiz@ctv.es>
+ *  Copyright (c) 2002 Eric Norum <eric.norum@usask.ca>
+ *  Copyright (c) 2003 Till Straumann <strauman@slac.stanford.edu>
+ *  Copyright (c) 2012 Alex Ivanov <alexivanov97@gmail.com>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pwdgrp.h"
+
+/*
+ * Static, thread-unsafe, buffers
+ */
+static FILE *group_fp;
+static char grbuf[200];
+static struct group grent;
+
+struct group *getgrnam(
+  const char *name
+)
+{
+  struct group *p;
+
+  if(getgrnam_r(name, &grent, grbuf, sizeof grbuf, &p))
+    return NULL;
+  return p;
+}
+
+struct group *getgrgid(
+  gid_t gid
+)
+{
+  struct group *p;
+
+  if(getgrgid_r(gid, &grent, grbuf, sizeof grbuf, &p))
+    return NULL;
+  return p;
+}
+
+struct group *getgrent(void)
+{
+  if (group_fp == NULL)
+    return NULL;
+  if (!_libcsupport_scangr(group_fp, &grent, grbuf, sizeof grbuf))
+    return NULL;
+  return &grent;
+}
+
+void setgrent(void)
+{
+  _libcsupport_pwdgrp_init();
+
+  if (group_fp != NULL)
+    fclose(group_fp);
+  group_fp = fopen("/etc/group", "r");
+}
+
+void endgrent(void)
+{
+  if (group_fp != NULL)
+    fclose(group_fp);
+}