BSD 4_4 release

[unix-history] / usr / src / lib / libc / stdio / tempnam.c

diff --git a/usr/src/lib/libc/stdio/tempnam.c b/usr/src/lib/libc/stdio/tempnam.c
index c096ca4..6644ae5 100644 (file)
--- a/usr/src/lib/libc/stdio/tempnam.c
+++ b/usr/src/lib/libc/stdio/tempnam.c
@@ -1,91 +1,86 @@
 /*
 /*

- * Copyright (c) 1988 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1988, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  *

- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley.  The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.

  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)

-static char sccsid[] = "@(#)tempnam.c  4.5 (Berkeley) %G%";
+static char sccsid[] = "@(#)tempnam.c  8.1 (Berkeley) 6/4/93";

 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/param.h>
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/param.h>

-#include <sys/stat.h>
-#include <sys/file.h>
+#include <errno.h>

 #include <stdio.h>
 #include <stdio.h>

+#include <stdlib.h>
+#include <unistd.h>
+#include <paths.h>

 
 

-#define        P_tmpdir        "/usr/tmp"
-
-FILE *
-tmpfile()
+char *
+tempnam(dir, pfx)
+       const char *dir, *pfx;

 {
 {

-       FILE *fp;
-       char *f, name[MAXPATHLEN], *tmpnam();
+       int sverrno;
+       char *f, *name;

 
 

-       if (!(fp = fopen(f = tmpnam(name), "w+"))) {
-               fprintf(stderr, "tmpfile: cannot open %s.\n", name);
+       if (!(name = malloc(MAXPATHLEN)))

                return(NULL);
                return(NULL);

+
+       if (!pfx)
+               pfx = "tmp.";
+
+       if (f = getenv("TMPDIR")) {
+               (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
+                   *(f + strlen(f) - 1) == '/'? "": "/", pfx);
+               if (f = mktemp(name))
+                       return(f);

        }
        }

-       (void)unlink(f);
-       return(fp);
-}

 
 

-char *
-tmpnam(s)
-       char *s;
-{
-       static char name[MAXPATHLEN];
-       char *mktemp();
+       if (f = (char *)dir) {
+               (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
+                   *(f + strlen(f) - 1) == '/'? "": "/", pfx);
+               if (f = mktemp(name))
+                       return(f);
+       }

 
 

-       if (!s)
-               s = name;
-       (void)sprintf(s, "%s/XXXXXX", P_tmpdir);
-       return(mktemp(s));
-}
+       f = P_tmpdir;
+       (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
+       if (f = mktemp(name))
+               return(f);

 
 

-char *
-tempnam(dir, pfx)
-       char *dir, *pfx;
-{
-       struct stat buf;
-       char *f, *name, *getenv(), *malloc(), *mktemp(), *strcat(), *strcpy();
+       f = _PATH_TMP;
+       (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
+       if (f = mktemp(name))
+               return(f);

 
 

-       if (!(name = malloc((u_int)MAXPATHLEN)))
-               return(NULL);
-       if ((f = getenv("TMPDIR")) && !stat(f, &buf) &&
-           (buf.st_mode&S_IFMT) == S_IFDIR && !access(f, W_OK|X_OK)) {
-               (void)strcpy(name, f);
-               goto done;
-       }
-       if (dir && !stat(dir, &buf) &&
-           (buf.st_mode&S_IFMT) == S_IFDIR && !access(dir, W_OK|X_OK)) {
-               (void)strcpy(name, dir);
-               goto done;
-       }
-       if (!stat(P_tmpdir, &buf) &&
-           (buf.st_mode&S_IFMT) == S_IFDIR && !access(P_tmpdir, W_OK|X_OK)) {
-               (void)strcpy(name, P_tmpdir);
-               goto done;
-       }
-       if (!stat("/tmp", &buf) &&
-           (buf.st_mode&S_IFMT) == S_IFDIR && !access("/tmp", W_OK|X_OK)) {
-               (void)strcpy(name, "/tmp");
-               goto done;
-       }
+       sverrno = errno;
+       free(name);
+       errno = sverrno;

        return(NULL);
        return(NULL);

-done:  (void)strcat(name, "/");
-       if (pfx)
-               (void)strcat(name, pfx);
-       (void)strcat(name, "XXXXXX");
-       return(mktemp(name));

 }
 }