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 4d77fea..6644ae5 100644 (file)
--- a/usr/src/lib/libc/stdio/tempnam.c
+++ b/usr/src/lib/libc/stdio/tempnam.c
@@ -1,18 +1,86 @@
 /*
 /*

- * Copyright (c) 1980 Regents of the University of California.
- * All rights reserved.  The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
+ * Copyright (c) 1988, 1993
+ *     The Regents of the University of California.  All rights reserved.
+ *
+ * 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  4.3 (Berkeley) %G%";
-#endif LIBC_SCCS and not lint
+static char sccsid[] = "@(#)tempnam.c  8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */

 
 

-char *tmpnam(s)
-char *s;
+#include <sys/param.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <paths.h>
+
+char *
+tempnam(dir, pfx)
+       const char *dir, *pfx;

 {
 {

-       static seed;
+       int sverrno;
+       char *f, *name;
+
+       if (!(name = malloc(MAXPATHLEN)))
+               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);
+       }
+
+       if (f = (char *)dir) {
+               (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
+                   *(f + strlen(f) - 1) == '/'? "": "/", pfx);
+               if (f = mktemp(name))
+                       return(f);
+       }
+
+       f = P_tmpdir;
+       (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
+       if (f = mktemp(name))
+               return(f);
+
+       f = _PATH_TMP;
+       (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
+       if (f = mktemp(name))
+               return(f);

 
 

-       sprintf(s, "temp.%d.%d", getpid(), seed++);
-       return(s);
+       sverrno = errno;
+       free(name);
+       errno = sverrno;
+       return(NULL);

 }
 }