Cups v2.2.0

Test: none
Change-Id: Ic1716fa930940f63b4679144b1459263a35476ef

1 files changed, 192 insertions, 0 deletions

diff --git a/cups/tempfile.c b/cups/tempfile.c
new file mode 100644
index 00000000..d96ee7db
--- /dev/null
+++ b/cups/tempfile.c
@@ -0,0 +1,192 @@
+/*
+ * Temp file utilities for CUPS.
+ *
+ * Copyright 2007-2014 by Apple Inc.
+ * Copyright 1997-2006 by Easy Software Products.
+ *
+ * These coded instructions, statements, and computer programs are the
+ * property of Apple Inc. and are protected by Federal copyright
+ * law.  Distribution and use rights are outlined in the file "LICENSE.txt"
+ * which should have been included with this file.  If this file is
+ * file is missing or damaged, see the license at "http://www.cups.org/".
+ *
+ * This file is subject to the Apple OS-Developed Software exception.
+ */
+
+/*
+ * Include necessary headers...
+ */
+
+#include "cups-private.h"
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#if defined(WIN32) || defined(__EMX__)
+#  include <io.h>
+#else
+#  include <unistd.h>
+#endif /* WIN32 || __EMX__ */
+
+
+/*
+ * 'cupsTempFd()' - Creates a temporary file.
+ *
+ * The temporary filename is returned in the filename buffer.
+ * The temporary file is opened for reading and writing.
+ */
+
+int					/* O - New file descriptor or -1 on error */
+cupsTempFd(char *filename,		/* I - Pointer to buffer */
+           int  len)			/* I - Size of buffer */
+{
+  int		fd;			/* File descriptor for temp file */
+  int		tries;			/* Number of tries */
+  const char	*tmpdir;		/* TMPDIR environment var */
+#ifdef WIN32
+  char		tmppath[1024];		/* Windows temporary directory */
+  DWORD		curtime;		/* Current time */
+#else
+  struct timeval curtime;		/* Current time */
+#endif /* WIN32 */
+
+
+ /*
+  * See if TMPDIR is defined...
+  */
+
+#ifdef WIN32
+  if ((tmpdir = getenv("TEMP")) == NULL)
+  {
+    GetTempPath(sizeof(tmppath), tmppath);
+    tmpdir = tmppath;
+  }
+#else
+ /*
+  * Previously we put root temporary files in the default CUPS temporary
+  * directory under /var/spool/cups.  However, since the scheduler cleans
+  * out temporary files there and runs independently of the user apps, we
+  * don't want to use it unless specifically told to by cupsd.
+  */
+
+  if ((tmpdir = getenv("TMPDIR")) == NULL)
+#  if defined(__APPLE__) && !TARGET_OS_IOS
+    tmpdir = "/private/tmp";		/* /tmp is a symlink to /private/tmp */
+#  else
+    tmpdir = "/tmp";
+#  endif /* __APPLE__  && !TARGET_OS_IOS */
+#endif /* WIN32 */
+
+ /*
+  * Make the temporary name using the specified directory...
+  */
+
+  tries = 0;
+
+  do
+  {
+#ifdef WIN32
+   /*
+    * Get the current time of day...
+    */
+
+    curtime =  GetTickCount() + tries;
+
+   /*
+    * Format a string using the hex time values...
+    */
+
+    snprintf(filename, (size_t)len - 1, "%s/%05lx%08lx", tmpdir, GetCurrentProcessId(), curtime);
+#else
+   /*
+    * Get the current time of day...
+    */
+
+    gettimeofday(&curtime, NULL);
+
+   /*
+    * Format a string using the hex time values...
+    */
+
+    snprintf(filename, (size_t)len - 1, "%s/%05x%08x", tmpdir, (unsigned)getpid(), (unsigned)(curtime.tv_sec + curtime.tv_usec + tries));
+#endif /* WIN32 */
+
+   /*
+    * Open the file in "exclusive" mode, making sure that we don't
+    * stomp on an existing file or someone's symlink crack...
+    */
+
+#ifdef WIN32
+    fd = open(filename, _O_CREAT | _O_RDWR | _O_TRUNC | _O_BINARY,
+              _S_IREAD | _S_IWRITE);
+#elif defined(O_NOFOLLOW)
+    fd = open(filename, O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW, 0600);
+#else
+    fd = open(filename, O_RDWR | O_CREAT | O_EXCL, 0600);
+#endif /* WIN32 */
+
+    if (fd < 0 && errno != EEXIST)
+      break;
+
+    tries ++;
+  }
+  while (fd < 0 && tries < 1000);
+
+ /*
+  * Return the file descriptor...
+  */
+
+  return (fd);
+}
+
+
+/*
+ * 'cupsTempFile()' - Generates a temporary filename.
+ *
+ * The temporary filename is returned in the filename buffer.
+ * This function is deprecated and will no longer generate a temporary
+ * filename - use @link cupsTempFd@ or @link cupsTempFile2@ instead.
+ *
+ * @deprecated@
+ */
+
+char *					/* O - Filename or @code NULL@ on error */
+cupsTempFile(char *filename,		/* I - Pointer to buffer */
+             int  len)			/* I - Size of buffer */
+{
+  (void)len;
+
+  if (filename)
+    *filename = '\0';
+
+  return (NULL);
+}
+
+
+/*
+ * 'cupsTempFile2()' - Creates a temporary CUPS file.
+ *
+ * The temporary filename is returned in the filename buffer.
+ * The temporary file is opened for writing.
+ *
+ * @since CUPS 1.2/macOS 10.5@
+ */
+
+cups_file_t *				/* O - CUPS file or @code NULL@ on error */
+cupsTempFile2(char *filename,		/* I - Pointer to buffer */
+              int  len)			/* I - Size of buffer */
+{
+  cups_file_t	*file;			/* CUPS file */
+  int		fd;			/* File descriptor */
+
+
+  if ((fd = cupsTempFd(filename, len)) < 0)
+    return (NULL);
+  else if ((file = cupsFileOpenFd(fd, "w")) == NULL)
+  {
+    close(fd);
+    unlink(filename);
+    return (NULL);
+  }
+  else
+    return (file);
+}