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[gnome-keyring/dbus-api] [egg] Move mkdtemp() code into its own file.

commit b206e3ee52ed0ae7dc1e897b7112bacd6aeffc2b
Author: Stef Walter <stef memberwebs com>
Date:   Sun Nov 8 00:10:07 2009 +0000

    [egg] Move mkdtemp() code into its own file.
    
    Move mkdtemp code into egg-mkdtemp.c so it can be used from
    other places.

 daemon/util/gkr-daemon-util.c |  206 +----------------------------------------
 egg/Makefile.am               |    1 +
 egg/egg-mkdtemp.c             |  199 +++++++++++++++++++++++++++++++++++++++
 egg/egg-mkdtemp.h             |   27 ++++++
 4 files changed, 229 insertions(+), 204 deletions(-)
---
diff --git a/daemon/util/gkr-daemon-util.c b/daemon/util/gkr-daemon-util.c
index fc9c97e..8391902 100644
--- a/daemon/util/gkr-daemon-util.c
+++ b/daemon/util/gkr-daemon-util.c
@@ -27,6 +27,7 @@
 #include "gkr-daemon-util.h"
 
 #include "egg/egg-cleanup.h"
+#include "egg/egg-mkdtemp.h"
 #include "egg/egg-unix-credentials.h"
 
 #include <glib.h>
@@ -232,9 +233,6 @@ gkr_daemon_client_get_app_path (GkrDaemonClient* client)
 static gchar* master_directory = NULL;
 static GArray* published_environ = NULL;
 
-/* Forward declaration, see gnu libc code lower down in this file */
-static char* do_mkdtemp (char *template);
-
 static void
 uninit_master_directory (gpointer data)
 {
@@ -267,7 +265,7 @@ init_master_directory (void)
 	/* Create private directory for agent socket */
 	if (!have_path) {
 		master_directory = g_build_filename (g_get_tmp_dir (), "keyring-XXXXXX", NULL);
-		if (do_mkdtemp (master_directory) == NULL)
+		if (egg_mkdtemp (master_directory) == NULL)
 			g_warning ("couldn't create socket directory: %s", g_strerror (errno));
 	}
 	
@@ -335,203 +333,3 @@ gkr_daemon_util_get_environment (void)
 	init_environment ();
 	return (const gchar**)published_environ->data;
 }
-
-/* Copyright (C) 1999, 2001-2002 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-/* Extracted from misc/mkdtemp.c and sysdeps/posix/tempname.c.  */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <errno.h>
-#ifndef __set_errno
-# define __set_errno(Val) errno = (Val)
-#endif
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <stdio.h>
-#ifndef TMP_MAX
-# define TMP_MAX 238328
-#endif
-
-#if HAVE_STDINT_H_WITH_UINTMAX || _LIBC
-# include <stdint.h>
-#endif
-
-#if HAVE_INTTYPES_H_WITH_UINTMAX || _LIBC
-# include <inttypes.h>
-#endif
-
-#if HAVE_UNISTD_H || _LIBC
-# include <unistd.h>
-#endif
-
-#if HAVE_GETTIMEOFDAY || _LIBC
-# if HAVE_SYS_TIME_H || _LIBC
-#  include <sys/time.h>
-# endif
-#else
-# if HAVE_TIME_H || _LIBC
-#  include <time.h>
-# endif
-#endif
-
-#include <sys/stat.h>
-#if STAT_MACROS_BROKEN
-# undef S_ISDIR
-#endif
-#if !defined S_ISDIR && defined S_IFDIR
-# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
-#endif
-#if !S_IRUSR && S_IREAD
-# define S_IRUSR S_IREAD
-#endif
-#if !S_IRUSR
-# define S_IRUSR 00400
-#endif
-#if !S_IWUSR && S_IWRITE
-# define S_IWUSR S_IWRITE
-#endif
-#if !S_IWUSR
-# define S_IWUSR 00200
-#endif
-#if !S_IXUSR && S_IEXEC
-# define S_IXUSR S_IEXEC
-#endif
-#if !S_IXUSR
-# define S_IXUSR 00100
-#endif
-
-#if !_LIBC
-# define __getpid getpid
-# define __gettimeofday gettimeofday
-# define __mkdir mkdir
-#endif
-
-/* Use the widest available unsigned type if uint64_t is not
-   available.  The algorithm below extracts a number less than 62**6
-   (approximately 2**35.725) from uint64_t, so ancient hosts where
-   uintmax_t is only 32 bits lose about 3.725 bits of randomness,
-   which is better than not having mkstemp at all.  */
-#if !defined UINT64_MAX && !defined uint64_t
-# define uint64_t uintmax_t
-#endif
-
-/* These are the characters used in temporary filenames.  */
-static const char letters[] =
-"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
-
-/* Generate a temporary file name based on TMPL.  TMPL must match the
-   rules for mk[s]temp (i.e. end in "XXXXXX").  The name constructed
-   does not exist at the time of the call to __gen_tempname.  TMPL is
-   overwritten with the result.
-
-   KIND is:
-   __GT_DIR:		create a directory, which will be mode 0700.
-
-   We use a clever algorithm to get hard-to-predict names. */
-static int
-gen_tempname (tmpl)
-     char *tmpl;
-{
-  int len;
-  char *XXXXXX;
-  static uint64_t value;
-  uint64_t random_time_bits;
-  int count, fd = -1;
-  int save_errno = errno;
-
-  len = strlen (tmpl);
-  if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX"))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  /* This is where the Xs start.  */
-  XXXXXX = &tmpl[len - 6];
-
-  /* Get some more or less random data.  */
-#ifdef RANDOM_BITS
-  RANDOM_BITS (random_time_bits);
-#else
-# if HAVE_GETTIMEOFDAY || _LIBC
-  {
-    struct timeval tv;
-    __gettimeofday (&tv, NULL);
-    random_time_bits = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec;
-  }
-# else
-  random_time_bits = time (NULL);
-# endif
-#endif
-  value += random_time_bits ^ __getpid ();
-
-  for (count = 0; count < TMP_MAX; value += 7777, ++count)
-    {
-      uint64_t v = value;
-
-      /* Fill in the random bits.  */
-      XXXXXX[0] = letters[v % 62];
-      v /= 62;
-      XXXXXX[1] = letters[v % 62];
-      v /= 62;
-      XXXXXX[2] = letters[v % 62];
-      v /= 62;
-      XXXXXX[3] = letters[v % 62];
-      v /= 62;
-      XXXXXX[4] = letters[v % 62];
-      v /= 62;
-      XXXXXX[5] = letters[v % 62];
-
-      fd = __mkdir (tmpl, S_IRUSR | S_IWUSR | S_IXUSR);
-
-      if (fd >= 0)
-	{
-	  __set_errno (save_errno);
-	  return fd;
-	}
-      else if (errno != EEXIST)
-	return -1;
-    }
-
-  /* We got out of the loop because we ran out of combinations to try.  */
-  __set_errno (EEXIST);
-  return -1;
-}
-
-/* Generate a unique temporary directory from TEMPLATE.
-   The last six characters of TEMPLATE must be "XXXXXX";
-   they are replaced with a string that makes the filename unique.
-   The directory is created, mode 700, and its name is returned.
-   (This function comes from OpenBSD.) */
-static char *
-do_mkdtemp (template)
-     char *template;
-{
-  if (gen_tempname (template))
-    return NULL;
-  else
-    return template;
-}
-
diff --git a/egg/Makefile.am b/egg/Makefile.am
index 9fe621c..1c91c6c 100644
--- a/egg/Makefile.am
+++ b/egg/Makefile.am
@@ -26,6 +26,7 @@ libegg_la_SOURCES = \
 	egg-dh.c egg-dh.h \
 	egg-hex.c egg-hex.h \
 	egg-libgcrypt.c egg-libgcrypt.h \
+	egg-mkdtemp.c egg-mkdtemp.h \
 	egg-oid.c egg-oid.h \
 	egg-openssl.c egg-openssl.h \
 	egg-unix-credentials.c egg-unix-credentials.h \
diff --git a/egg/egg-mkdtemp.c b/egg/egg-mkdtemp.c
new file mode 100644
index 0000000..03d4332
--- /dev/null
+++ b/egg/egg-mkdtemp.c
@@ -0,0 +1,199 @@
+/* Copyright (C) 1999, 2001-2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Extracted from misc/mkdtemp.c and sysdeps/posix/tempname.c.  */
+
+#include "egg-mkdtemp.h"
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <errno.h>
+#ifndef __set_errno
+# define __set_errno(Val) errno = (Val)
+#endif
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <stdio.h>
+#ifndef TMP_MAX
+# define TMP_MAX 238328
+#endif
+
+#if HAVE_STDINT_H_WITH_UINTMAX || _LIBC
+# include <stdint.h>
+#endif
+
+#if HAVE_INTTYPES_H_WITH_UINTMAX || _LIBC
+# include <inttypes.h>
+#endif
+
+#if HAVE_UNISTD_H || _LIBC
+# include <unistd.h>
+#endif
+
+#if HAVE_GETTIMEOFDAY || _LIBC
+# if HAVE_SYS_TIME_H || _LIBC
+#  include <sys/time.h>
+# endif
+#else
+# if HAVE_TIME_H || _LIBC
+#  include <time.h>
+# endif
+#endif
+
+#include <sys/stat.h>
+#if STAT_MACROS_BROKEN
+# undef S_ISDIR
+#endif
+#if !defined S_ISDIR && defined S_IFDIR
+# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
+#endif
+#if !S_IRUSR && S_IREAD
+# define S_IRUSR S_IREAD
+#endif
+#if !S_IRUSR
+# define S_IRUSR 00400
+#endif
+#if !S_IWUSR && S_IWRITE
+# define S_IWUSR S_IWRITE
+#endif
+#if !S_IWUSR
+# define S_IWUSR 00200
+#endif
+#if !S_IXUSR && S_IEXEC
+# define S_IXUSR S_IEXEC
+#endif
+#if !S_IXUSR
+# define S_IXUSR 00100
+#endif
+
+#if !_LIBC
+# define __getpid getpid
+# define __gettimeofday gettimeofday
+# define __mkdir mkdir
+#endif
+
+/* Use the widest available unsigned type if uint64_t is not
+   available.  The algorithm below extracts a number less than 62**6
+   (approximately 2**35.725) from uint64_t, so ancient hosts where
+   uintmax_t is only 32 bits lose about 3.725 bits of randomness,
+   which is better than not having mkstemp at all.  */
+#if !defined UINT64_MAX && !defined uint64_t
+# define uint64_t uintmax_t
+#endif
+
+/* These are the characters used in temporary filenames.  */
+static const char letters[] =
+"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+
+/* Generate a temporary file name based on TMPL.  TMPL must match the
+   rules for mk[s]temp (i.e. end in "XXXXXX").  The name constructed
+   does not exist at the time of the call to __gen_tempname.  TMPL is
+   overwritten with the result.
+
+   KIND is:
+   __GT_DIR:		create a directory, which will be mode 0700.
+
+   We use a clever algorithm to get hard-to-predict names. */
+static int
+gen_tempname (tmpl)
+     char *tmpl;
+{
+  int len;
+  char *XXXXXX;
+  static uint64_t value;
+  uint64_t random_time_bits;
+  int count, fd = -1;
+  int save_errno = errno;
+
+  len = strlen (tmpl);
+  if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX"))
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  /* This is where the Xs start.  */
+  XXXXXX = &tmpl[len - 6];
+
+  /* Get some more or less random data.  */
+#ifdef RANDOM_BITS
+  RANDOM_BITS (random_time_bits);
+#else
+# if HAVE_GETTIMEOFDAY || _LIBC
+  {
+    struct timeval tv;
+    __gettimeofday (&tv, NULL);
+    random_time_bits = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec;
+  }
+# else
+  random_time_bits = time (NULL);
+# endif
+#endif
+  value += random_time_bits ^ __getpid ();
+
+  for (count = 0; count < TMP_MAX; value += 7777, ++count)
+    {
+      uint64_t v = value;
+
+      /* Fill in the random bits.  */
+      XXXXXX[0] = letters[v % 62];
+      v /= 62;
+      XXXXXX[1] = letters[v % 62];
+      v /= 62;
+      XXXXXX[2] = letters[v % 62];
+      v /= 62;
+      XXXXXX[3] = letters[v % 62];
+      v /= 62;
+      XXXXXX[4] = letters[v % 62];
+      v /= 62;
+      XXXXXX[5] = letters[v % 62];
+
+      fd = __mkdir (tmpl, S_IRUSR | S_IWUSR | S_IXUSR);
+
+      if (fd >= 0)
+	{
+	  __set_errno (save_errno);
+	  return fd;
+	}
+      else if (errno != EEXIST)
+	return -1;
+    }
+
+  /* We got out of the loop because we ran out of combinations to try.  */
+  __set_errno (EEXIST);
+  return -1;
+}
+
+/* Generate a unique temporary directory from TEMPLATE.
+   The last six characters of TEMPLATE must be "XXXXXX";
+   they are replaced with a string that makes the filename unique.
+   The directory is created, mode 700, and its name is returned.
+   (This function comes from OpenBSD.) */
+char *
+egg_mkdtemp (char *template)
+{
+  if (gen_tempname (template))
+    return NULL;
+  else
+    return template;
+}
diff --git a/egg/egg-mkdtemp.h b/egg/egg-mkdtemp.h
new file mode 100644
index 0000000..6cc32c7
--- /dev/null
+++ b/egg/egg-mkdtemp.h
@@ -0,0 +1,27 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/* Copyright (C) 1999, 2001-2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Extracted from misc/mkdtemp.c and sysdeps/posix/tempname.c.  */
+
+#ifndef EGGMKDTEMP_H_
+#define EGGMKDTEMP_H_
+
+char*   egg_mkdtemp                 (char *template);
+
+#endif /* EGGMKDTEMP_H_ */
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