OpenSolaris Launch

1 files changed, 116 insertions, 0 deletions

diff --git a/usr/src/lib/libc/port/stdio/tempnam.c b/usr/src/lib/libc/port/stdio/tempnam.c
new file mode 100644
index 0000000000..e3dfdf9cc1
--- /dev/null
+++ b/usr/src/lib/libc/port/stdio/tempnam.c
@@ -0,0 +1,116 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+/*	Copyright (c) 1988 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+
+#pragma weak tempnam = _tempnam
+
+#include "synonyms.h"
+#include <mtlib.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <thread.h>
+#include <synch.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+#define	max(A, B) (((A) < (B))?(B):(A))
+
+static char *pcopy(char *, const char *);
+
+static char seed[] = "AAA";
+
+static mutex_t seed_lk = DEFAULTMUTEX;
+
+char *
+tempnam(const char *dir,	/* use this directory please (if non-NULL) */
+	const char *pfx)	/* use this (if non-NULL) as filename prefix */
+{
+	char *p, *q, *tdir;
+	size_t x = 0, y = 0, z;
+	struct stat64 statbuf;
+
+	z = sizeof (P_tmpdir) - 1;
+	if ((tdir = getenv("TMPDIR")) != NULL) {
+		x = strlen(tdir);
+	}
+	if (dir != NULL) {
+		if (stat64(dir, &statbuf) == 0 && S_ISDIR(statbuf.st_mode))
+			y = strlen(dir);
+	}
+	if ((p = malloc(max(max(x, y), z)+16)) == NULL)
+		return (NULL);
+	if (x > 0 && access(pcopy(p, tdir), (W_OK | X_OK)) == 0)
+		goto OK;
+	if (y > 0 && access(pcopy(p, dir), (W_OK | X_OK)) == 0)
+		goto OK;
+	if (access(pcopy(p, P_tmpdir), (W_OK | X_OK)) == 0)
+		goto OK;
+	if (access(pcopy(p, "/tmp"), (W_OK | X_OK)) != 0) {
+		free(p);
+		return (NULL);
+	}
+OK:
+	(void) strcat(p, "/");
+	if (pfx) {
+		*(p+strlen(p)+5) = '\0';
+		(void) strncat(p, pfx, 5);
+	}
+	lmutex_lock(&seed_lk);
+	(void) strcat(p, seed);
+	(void) strcat(p, "XXXXXX");
+	q = seed;
+	while (*q == 'Z')
+		*q++ = 'A';
+	if (*q != '\0')
+		++*q;
+	lmutex_unlock(&seed_lk);
+	if (*mktemp(p) == '\0') {
+		free(p);
+		return (NULL);
+	}
+	return (p);
+}
+
+static char *
+pcopy(char *space, const char *arg)
+{
+	char *p;
+
+	if (arg) {
+		(void) strcpy(space, arg);
+		p = space-1+strlen(space);
+		while ((p >= space) && (*p == '/'))
+			*p-- = '\0';
+	}
+	return (space);
+}