Imported Upstream version 5.8upstream/5.8upstream

1 files changed, 891 insertions, 0 deletions

diff --git a/routines.c b/routines.c
new file mode 100644
index 0000000..83bcdcc
--- /dev/null
+++ b/routines.c
@@ -0,0 +1,891 @@
+/*
+*   $Id: routines.c 536 2007-06-02 06:09:00Z elliotth $
+*
+*   Copyright (c) 2002-2003, Darren Hiebert
+*
+*   This source code is released for free distribution under the terms of the
+*   GNU General Public License.
+*
+*   This module contains a lose assortment of shared functions.
+*/
+
+/*
+*   INCLUDE FILES
+*/
+#include "general.h"  /* must always come first */
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>  /* to declare malloc (), realloc () */
+#endif
+#include <ctype.h>
+#include <string.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <stdio.h>  /* to declare tempnam(), and SEEK_SET (hopefully) */
+
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>  /* to declar O_RDWR, O_CREAT, O_EXCL */
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>  /* to declare mkstemp () */
+#endif
+
+/*  To declare "struct stat" and stat ().
+ */
+#if defined (HAVE_SYS_TYPES_H)
+# include <sys/types.h>
+#else
+# if defined (HAVE_TYPES_H)
+#  include <types.h>
+# endif
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#else
+# ifdef HAVE_STAT_H
+#  include <stat.h>
+# endif
+#endif
+
+#ifdef HAVE_DOS_H
+# include <dos.h>  /* to declare MAXPATH */
+#endif
+#ifdef HAVE_DIRECT_H
+# include <direct.h>  /* to _getcwd */
+#endif
+#ifdef HAVE_DIR_H
+# include <dir.h>  /* to declare findfirst() and findnext() */
+#endif
+#ifdef HAVE_IO_H
+# include <io.h>  /* to declare open() */
+#endif
+#include "debug.h"
+#include "routines.h"
+
+/*
+*   MACROS
+*/
+#ifndef TMPDIR
+# define TMPDIR "/tmp"
+#endif
+
+/*  File type tests.
+ */
+#ifndef S_ISREG
+# if defined (S_IFREG) && ! defined (AMIGA)
+#  define S_ISREG(mode)		((mode) & S_IFREG)
+# else
+#  define S_ISREG(mode)		TRUE  /* assume regular file */
+# endif
+#endif
+
+#ifndef S_ISLNK
+# ifdef S_IFLNK
+#  define S_ISLNK(mode)		(((mode) & S_IFMT) == S_IFLNK)
+# else
+#  define S_ISLNK(mode)		FALSE  /* assume no soft links */
+# endif
+#endif
+
+#ifndef S_ISDIR
+# ifdef S_IFDIR
+#  define S_ISDIR(mode)		(((mode) & S_IFMT) == S_IFDIR)
+# else
+#  define S_ISDIR(mode)		FALSE  /* assume no soft links */
+# endif
+#endif
+
+#ifndef S_IFMT
+# define S_IFMT 0
+#endif
+
+#ifndef S_IXUSR
+# define S_IXUSR 0
+#endif
+#ifndef S_IXGRP
+# define S_IXGRP 0
+#endif
+#ifndef S_IXOTH
+# define S_IXOTH 0
+#endif
+
+#ifndef S_IRUSR
+# define S_IRUSR 0400
+#endif
+#ifndef S_IWUSR
+# define S_IWUSR 0200
+#endif
+
+#ifndef S_ISUID
+# define S_ISUID 0
+#endif
+
+/*  Hack for rediculous practice of Microsoft Visual C++.
+ */
+#if defined (WIN32)
+# if defined (_MSC_VER)
+#  define stat    _stat
+#  define getcwd  _getcwd
+#  define currentdrive() (_getdrive() + 'A' - 1)
+#  define PATH_MAX  _MAX_PATH
+# elif defined (__BORLANDC__)
+#  define PATH_MAX  MAXPATH
+#  define currentdrive() (getdisk() + 'A')
+# elif defined (DJGPP)
+#  define currentdrive() (getdisk() + 'A')
+# else
+#  define currentdrive() 'C'
+# endif
+#endif
+
+#ifndef PATH_MAX
+# define PATH_MAX 256
+#endif
+
+/*
+ *  Miscellaneous macros
+ */
+#define selected(var,feature)	(((int)(var) & (int)(feature)) == (int)feature)
+
+/*
+*   DATA DEFINITIONS
+*/
+#if defined (MSDOS_STYLE_PATH)
+const char *const PathDelimiters = ":/\\";
+#elif defined (VMS)
+const char *const PathDelimiters = ":]>";
+#endif
+
+char *CurrentDirectory;
+
+static const char *ExecutableProgram;
+static const char *ExecutableName;
+
+/*
+*   FUNCTION PROTOTYPES
+*/
+#ifdef NEED_PROTO_STAT
+extern int stat (const char *, struct stat *);
+#endif
+#ifdef NEED_PROTO_LSTAT
+extern int lstat (const char *, struct stat *);
+#endif
+#if defined (MSDOS) || defined (WIN32) || defined (VMS) || defined (__EMX__) || defined (AMIGA)
+# define lstat(fn,buf) stat(fn,buf)
+#endif
+
+/*
+*   FUNCTION DEFINITIONS
+*/
+
+extern void freeRoutineResources (void)
+{
+	if (CurrentDirectory != NULL)
+		eFree (CurrentDirectory);
+}
+
+extern void setExecutableName (const char *const path)
+{
+	ExecutableProgram = path;
+	ExecutableName = baseFilename (path);
+#ifdef VAXC
+{
+	/* remove filetype from executable name */
+	char *p = strrchr (ExecutableName, '.');
+	if (p != NULL)
+		*p = '\0';
+}
+#endif
+}
+
+extern const char *getExecutableName (void)
+{
+	return ExecutableName;
+}
+
+extern const char *getExecutablePath (void)
+{
+	return ExecutableProgram;
+}
+
+extern void error (
+		const errorSelection selection, const char *const format, ...)
+{
+	va_list ap;
+
+	va_start (ap, format);
+	fprintf (errout, "%s: %s", getExecutableName (),
+			selected (selection, WARNING) ? "Warning: " : "");
+	vfprintf (errout, format, ap);
+	if (selected (selection, PERROR))
+#ifdef HAVE_STRERROR
+		fprintf (errout, " : %s", strerror (errno));
+#else
+		perror (" ");
+#endif
+	fputs ("\n", errout);
+	va_end (ap);
+	if (selected (selection, FATAL))
+		exit (1);
+}
+
+/*
+ *  Memory allocation functions
+ */
+
+extern void *eMalloc (const size_t size)
+{
+	void *buffer = malloc (size);
+
+	if (buffer == NULL)
+		error (FATAL, "out of memory");
+
+	return buffer;
+}
+
+extern void *eCalloc (const size_t count, const size_t size)
+{
+	void *buffer = calloc (count, size);
+
+	if (buffer == NULL)
+		error (FATAL, "out of memory");
+
+	return buffer;
+}
+
+extern void *eRealloc (void *const ptr, const size_t size)
+{
+	void *buffer;
+	if (ptr == NULL)
+		buffer = eMalloc (size);
+	else
+	{
+		buffer = realloc (ptr, size);
+		if (buffer == NULL)
+			error (FATAL, "out of memory");
+	}
+	return buffer;
+}
+
+extern void eFree (void *const ptr)
+{
+	Assert (ptr != NULL);
+	free (ptr);
+}
+
+/*
+ *  String manipulation functions
+ */
+
+/*
+ * Compare two strings, ignoring case.
+ * Return 0 for match, < 0 for smaller, > 0 for bigger
+ * Make sure case is folded to uppercase in comparison (like for 'sort -f')
+ * This makes a difference when one of the chars lies between upper and lower
+ * ie. one of the chars [ \ ] ^ _ ` for ascii. (The '_' in particular !)
+ */
+extern int struppercmp (const char *s1, const char *s2)
+{
+	int result;
+	do
+	{
+		result = toupper ((int) *s1) - toupper ((int) *s2);
+	} while (result == 0  &&  *s1++ != '\0'  &&  *s2++ != '\0');
+	return result;
+}
+
+extern int strnuppercmp (const char *s1, const char *s2, size_t n)
+{
+	int result;
+	do
+	{
+		result = toupper ((int) *s1) - toupper ((int) *s2);
+	} while (result == 0  &&  --n > 0  &&  *s1++ != '\0'  &&  *s2++ != '\0');
+	return result;
+}
+
+#ifndef HAVE_STRSTR
+extern char* strstr (const char *str, const char *substr)
+{
+	const size_t length = strlen (substr);
+	const char *match = NULL;
+	const char *p;
+
+	for (p = str  ;  *p != '\0'  &&  match == NULL  ;  ++p)
+		if (strncmp (p, substr, length) == 0)
+			match = p;
+	return (char*) match;
+}
+#endif
+
+extern char* eStrdup (const char* str)
+{
+	char* result = xMalloc (strlen (str) + 1, char);
+	strcpy (result, str);
+	return result;
+}
+
+extern void toLowerString (char* str)
+{
+	while (*str != '\0')
+	{
+		*str = tolower ((int) *str);
+		++str;
+	}
+}
+
+extern void toUpperString (char* str)
+{
+	while (*str != '\0')
+	{
+		*str = toupper ((int) *str);
+		++str;
+	}
+}
+
+/*  Newly allocated string containing lower case conversion of a string.
+ */
+extern char* newLowerString (const char* str)
+{
+	char* const result = xMalloc (strlen (str) + 1, char);
+	int i = 0;
+	do
+		result [i] = tolower ((int) str [i]);
+	while (str [i++] != '\0');
+	return result;
+}
+
+/*  Newly allocated string containing upper case conversion of a string.
+ */
+extern char* newUpperString (const char* str)
+{
+	char* const result = xMalloc (strlen (str) + 1, char);
+	int i = 0;
+	do
+		result [i] = toupper ((int) str [i]);
+	while (str [i++] != '\0');
+	return result;
+}
+
+/*
+ * File system functions
+ */
+
+extern void setCurrentDirectory (void)
+{
+#ifndef AMIGA
+	char* buf;
+#endif
+	if (CurrentDirectory == NULL)
+		CurrentDirectory = xMalloc ((size_t) (PATH_MAX + 1), char);
+#ifdef AMIGA
+	strcpy (CurrentDirectory, ".");
+#else
+	buf = getcwd (CurrentDirectory, PATH_MAX);
+	if (buf == NULL)
+		perror ("");
+#endif
+	if (CurrentDirectory [strlen (CurrentDirectory) - (size_t) 1] !=
+			PATH_SEPARATOR)
+	{
+		sprintf (CurrentDirectory + strlen (CurrentDirectory), "%c",
+				OUTPUT_PATH_SEPARATOR);
+	}
+}
+
+#ifdef AMIGA
+static boolean isAmigaDirectory (const char *const name)
+{
+	boolean result = FALSE;
+	struct FileInfoBlock *const fib = xMalloc (1, struct FileInfoBlock);
+	if (fib != NULL)
+	{
+		const BPTR flock = Lock ((UBYTE *) name, (long) ACCESS_READ);
+
+		if (flock != (BPTR) NULL)
+		{
+			if (Examine (flock, fib))
+				result = ((fib->fib_DirEntryType >= 0) ? TRUE : FALSE);
+			UnLock (flock);
+		}
+		eFree (fib);
+	}
+	return result;
+}
+#endif
+
+/* For caching of stat() calls */
+extern fileStatus *eStat (const char *const fileName)
+{
+	struct stat status;
+	static fileStatus file;
+	if (file.name == NULL  ||  strcmp (fileName, file.name) != 0)
+	{
+		eStatFree (&file);
+		file.name = eStrdup (fileName);
+		if (lstat (file.name, &status) != 0)
+			file.exists = FALSE;
+		else
+		{
+			file.isSymbolicLink = (boolean) S_ISLNK (status.st_mode);
+			if (file.isSymbolicLink  &&  stat (file.name, &status) != 0)
+				file.exists = FALSE;
+			else
+			{
+				file.exists = TRUE;
+#ifdef AMIGA
+				file.isDirectory = isAmigaDirectory (file.name);
+#else
+				file.isDirectory = (boolean) S_ISDIR (status.st_mode);
+#endif
+				file.isNormalFile = (boolean) (S_ISREG (status.st_mode));
+				file.isExecutable = (boolean) ((status.st_mode &
+					(S_IXUSR | S_IXGRP | S_IXOTH)) != 0);
+				file.isSetuid = (boolean) ((status.st_mode & S_ISUID) != 0);
+				file.size = status.st_size;
+			}
+		}
+	}
+	return &file;
+}
+
+extern void eStatFree (fileStatus *status)
+{
+	if (status->name != NULL)
+	{
+		eFree (status->name);
+		status->name = NULL;
+	}
+}
+
+extern boolean doesFileExist (const char *const fileName)
+{
+	fileStatus *status = eStat (fileName);
+	return status->exists;
+}
+
+extern boolean isRecursiveLink (const char* const dirName)
+{
+	boolean result = FALSE;
+	fileStatus *status = eStat (dirName);
+	if (status->isSymbolicLink)
+	{
+		char* const path = absoluteFilename (dirName);
+		while (path [strlen (path) - 1] == PATH_SEPARATOR)
+			path [strlen (path) - 1] = '\0';
+		while (! result  &&  strlen (path) > (size_t) 1)
+		{
+			char *const separator = strrchr (path, PATH_SEPARATOR);
+			if (separator == NULL)
+				break;
+			else if (separator == path)  /* backed up to root directory */
+				*(separator + 1) = '\0';
+			else
+				*separator = '\0';
+			result = isSameFile (path, dirName);
+		}
+		eFree (path);
+	}
+	return result;
+}
+
+#ifndef HAVE_FGETPOS
+
+extern int fgetpos (FILE *stream, fpos_t *pos)
+{
+	int result = 0;
+
+	*pos = ftell (stream);
+	if (*pos == -1L)
+		result = -1;
+
+	return result;
+}
+
+extern int fsetpos (FILE *stream, fpos_t const *pos)
+{
+	return fseek (stream, *pos, SEEK_SET);
+}
+
+#endif
+
+/*
+ *  Pathname manipulation (O/S dependent!!!)
+ */
+
+static boolean isPathSeparator (const int c)
+{
+	boolean result;
+#if defined (MSDOS_STYLE_PATH) || defined (VMS)
+	result = (boolean) (strchr (PathDelimiters, c) != NULL);
+#else
+	result = (boolean) (c == PATH_SEPARATOR);
+#endif
+	return result;
+}
+
+#if ! defined (HAVE_STAT_ST_INO)
+
+static void canonicalizePath (char *const path __unused__)
+{
+#if defined (MSDOS_STYLE_PATH)
+	char *p;
+	for (p = path  ;  *p != '\0'  ;  ++p)
+		if (isPathSeparator (*p)  &&  *p != ':')
+			*p = PATH_SEPARATOR;
+#endif
+}
+
+#endif
+
+extern boolean isSameFile (const char *const name1, const char *const name2)
+{
+	boolean result = FALSE;
+#if defined (HAVE_STAT_ST_INO)
+	struct stat stat1, stat2;
+
+	if (stat (name1, &stat1) == 0  &&  stat (name2, &stat2) == 0)
+		result = (boolean) (stat1.st_ino == stat2.st_ino);
+#else
+	{
+		char *const n1 = absoluteFilename (name1);
+		char *const n2 = absoluteFilename (name2);
+		canonicalizePath (n1);
+		canonicalizePath (n2);
+# if defined (CASE_INSENSITIVE_FILENAMES)
+		result = (boolean) (strcasecmp (n1, n2) == 0);
+#else
+		result = (boolean) (strcmp (n1, n2) == 0);
+#endif
+		free (n1);
+		free (n2);
+	}
+#endif
+	return result;
+}
+
+extern const char *baseFilename (const char *const filePath)
+{
+#if defined (MSDOS_STYLE_PATH) || defined (VMS)
+	const char *tail = NULL;
+	unsigned int i;
+
+	/*  Find whichever of the path delimiters is last.
+	 */
+	for (i = 0  ;  i < strlen (PathDelimiters)  ;  ++i)
+	{
+		const char *sep = strrchr (filePath, PathDelimiters [i]);
+
+		if (sep > tail)
+			tail = sep;
+	}
+#else
+	const char *tail = strrchr (filePath, PATH_SEPARATOR);
+#endif
+	if (tail == NULL)
+		tail = filePath;
+	else
+		++tail;  /* step past last delimiter */
+#ifdef VAXC
+	{
+		/* remove version number from filename */
+		char *p = strrchr ((char *) tail, ';');
+		if (p != NULL)
+			*p = '\0';
+	}
+#endif
+
+	return tail;
+}
+
+extern const char *fileExtension (const char *const fileName)
+{
+	const char *extension;
+	const char *pDelimiter = NULL;
+	const char *const base = baseFilename (fileName);
+#ifdef QDOS
+	pDelimiter = strrchr (base, '_');
+#endif
+	if (pDelimiter == NULL)
+	    pDelimiter = strrchr (base, '.');
+
+	if (pDelimiter == NULL)
+		extension = "";
+	else
+		extension = pDelimiter + 1;  /* skip to first char of extension */
+
+	return extension;
+}
+
+extern boolean isAbsolutePath (const char *const path)
+{
+	boolean result = FALSE;
+#if defined (MSDOS_STYLE_PATH)
+	if (isPathSeparator (path [0]))
+		result = TRUE;
+	else if (isalpha (path [0])  &&  path [1] == ':')
+	{
+		if (isPathSeparator (path [2]))
+			result = TRUE;
+		else
+			/*  We don't support non-absolute file names with a drive
+			 *  letter, like `d:NAME' (it's too much hassle).
+			 */
+			error (FATAL,
+				"%s: relative file names with drive letters not supported",
+				path);
+	}
+#elif defined (VMS)
+	result = (boolean) (strchr (path, ':') != NULL);
+#else
+	result = isPathSeparator (path [0]);
+#endif
+	return result;
+}
+
+extern vString *combinePathAndFile (
+	const char *const path, const char *const file)
+{
+	vString *const filePath = vStringNew ();
+#ifdef VMS
+	const char *const directoryId = strstr (file, ".DIR;1");
+
+	if (directoryId == NULL)
+	{
+		const char *const versionId = strchr (file, ';');
+
+		vStringCopyS (filePath, path);
+		if (versionId == NULL)
+			vStringCatS (filePath, file);
+		else
+			vStringNCatS (filePath, file, versionId - file);
+		vStringCopyToLower (filePath, filePath);
+	}
+	else
+	{
+		/*  File really is a directory; append it to the path.
+		 *  Gotcha: doesn't work with logical names.
+		 */
+		vStringNCopyS (filePath, path, strlen (path) - 1);
+		vStringPut (filePath, '.');
+		vStringNCatS (filePath, file, directoryId - file);
+		if (strchr (path, '[') != NULL)
+			vStringPut (filePath, ']');
+		else
+			vStringPut (filePath, '>');
+		vStringTerminate (filePath);
+	}
+#else
+	const int lastChar = path [strlen (path) - 1];
+	boolean terminated = isPathSeparator (lastChar);
+
+	vStringCopyS (filePath, path);
+	if (! terminated)
+	{
+		vStringPut (filePath, OUTPUT_PATH_SEPARATOR);
+		vStringTerminate (filePath);
+	}
+	vStringCatS (filePath, file);
+#endif
+
+	return filePath;
+}
+
+/* Return a newly-allocated string whose contents concatenate those of
+ * s1, s2, s3.
+ * Routine adapted from Gnu etags.
+ */
+static char* concat (const char *s1, const char *s2, const char *s3)
+{
+  int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
+  char *result = xMalloc (len1 + len2 + len3 + 1, char);
+
+  strcpy (result, s1);
+  strcpy (result + len1, s2);
+  strcpy (result + len1 + len2, s3);
+  result [len1 + len2 + len3] = '\0';
+
+  return result;
+}
+
+/* Return a newly allocated string containing the absolute file name of FILE
+ * given CWD (which should end with a slash).
+ * Routine adapted from Gnu etags.
+ */
+extern char* absoluteFilename (const char *file)
+{
+	char *slashp, *cp;
+	char *res = NULL;
+	if (isAbsolutePath (file))
+	{
+#ifdef MSDOS_STYLE_PATH
+		if (file [1] == ':')
+			res = eStrdup (file);
+		else
+		{
+			char drive [3];
+			sprintf (drive, "%c:", currentdrive ());
+			res = concat (drive, file, "");
+		}
+#else
+		res = eStrdup (file);
+#endif
+	}
+	else
+		res = concat (CurrentDirectory, file, "");
+
+	/* Delete the "/dirname/.." and "/." substrings. */
+	slashp = strchr (res, PATH_SEPARATOR);
+	while (slashp != NULL  &&  slashp [0] != '\0')
+	{
+		if (slashp[1] == '.')
+		{
+			if (slashp [2] == '.' &&
+				(slashp [3] == PATH_SEPARATOR || slashp [3] == '\0'))
+			{
+				cp = slashp;
+				do
+					cp--;
+				while (cp >= res  &&  ! isAbsolutePath (cp));
+				if (cp < res)
+					cp = slashp;/* the absolute name begins with "/.." */
+#ifdef MSDOS_STYLE_PATH
+				/* Under MSDOS and NT we get `d:/NAME' as absolute file name,
+				 * so the luser could say `d:/../NAME'. We silently treat this
+				 * as `d:/NAME'.
+				 */
+				else if (cp [0] != PATH_SEPARATOR)
+					cp = slashp;
+#endif
+				strcpy (cp, slashp + 3);
+				slashp = cp;
+				continue;
+			}
+			else if (slashp [2] == PATH_SEPARATOR  ||  slashp [2] == '\0')
+			{
+				strcpy (slashp, slashp + 2);
+				continue;
+			}
+		}
+		slashp = strchr (slashp + 1, PATH_SEPARATOR);
+	}
+
+	if (res [0] == '\0')
+		return eStrdup ("/");
+	else
+	{
+#ifdef MSDOS_STYLE_PATH
+		/* Canonicalize drive letter case. */
+		if (res [1] == ':'  &&  islower (res [0]))
+			res [0] = toupper (res [0]);
+#endif
+
+		return res;
+	}
+}
+
+/* Return a newly allocated string containing the absolute file name of dir
+ * where `file' resides given `CurrentDirectory'.
+ * Routine adapted from Gnu etags.
+ */
+extern char* absoluteDirname (char *file)
+{
+	char *slashp, *res;
+	char save;
+	slashp = strrchr (file, PATH_SEPARATOR);
+	if (slashp == NULL)
+		res = eStrdup (CurrentDirectory);
+	else
+	{
+		save = slashp [1];
+		slashp [1] = '\0';
+		res = absoluteFilename (file);
+		slashp [1] = save;
+	}
+	return res;
+}
+
+/* Return a newly allocated string containing the file name of FILE relative
+ * to the absolute directory DIR (which should end with a slash).
+ * Routine adapted from Gnu etags.
+ */
+extern char* relativeFilename (const char *file, const char *dir)
+{
+	const char *fp, *dp;
+	char *absdir, *res;
+	int i;
+
+	/* Find the common root of file and dir (with a trailing slash). */
+	absdir = absoluteFilename (file);
+	fp = absdir;
+	dp = dir;
+	while (*fp++ == *dp++)
+		continue;
+	fp--;
+	dp--;  /* back to the first differing char */
+	do
+	{  /* look at the equal chars until path sep */
+		if (fp == absdir)
+			return absdir;  /* first char differs, give up */
+		fp--;
+		dp--;
+	} while (*fp != PATH_SEPARATOR);
+
+	/* Build a sequence of "../" strings for the resulting relative file name.
+	 */
+	i = 0;
+	while ((dp = strchr (dp + 1, PATH_SEPARATOR)) != NULL)
+		i += 1;
+	res = xMalloc (3 * i + strlen (fp + 1) + 1, char);
+	res [0] = '\0';
+	while (i-- > 0)
+		strcat (res, "../");
+
+	/* Add the file name relative to the common root of file and dir. */
+	strcat (res, fp + 1);
+	free (absdir);
+
+	return res;
+}
+
+extern FILE *tempFile (const char *const mode, char **const pName)
+{
+	char *name;
+	FILE *fp;
+	int fd;
+#if defined(HAVE_MKSTEMP)
+	const char *const pattern = "tags.XXXXXX";
+	const char *tmpdir = NULL;
+	fileStatus *file = eStat (ExecutableProgram);
+	if (! file->isSetuid)
+		tmpdir = getenv ("TMPDIR");
+	if (tmpdir == NULL)
+		tmpdir = TMPDIR;
+	name = xMalloc (strlen (tmpdir) + 1 + strlen (pattern) + 1, char);
+	sprintf (name, "%s%c%s", tmpdir, OUTPUT_PATH_SEPARATOR, pattern);
+	fd = mkstemp (name);
+	eStatFree (file);
+#elif defined(HAVE_TEMPNAM)
+	name = tempnam (TMPDIR, "tags");
+	if (name == NULL)
+		error (FATAL | PERROR, "cannot allocate temporary file name");
+	fd = open (name, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
+#else
+	name = xMalloc (L_tmpnam, char);
+	if (tmpnam (name) != name)
+		error (FATAL | PERROR, "cannot assign temporary file name");
+	fd = open (name, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
+#endif
+	if (fd == -1)
+		error (FATAL | PERROR, "cannot open temporary file");
+	fp = fdopen (fd, mode);
+	if (fp == NULL)
+		error (FATAL | PERROR, "cannot open temporary file");
+	DebugStatement (
+		debugPrintf (DEBUG_STATUS, "opened temporary file %s\n", name); )
+	Assert (*pName == NULL);
+	*pName = name;
+	return fp;
+}
+
+/* vi:set tabstop=4 shiftwidth=4: */