Standard Libraries for EDK II.

[mirror_edk2.git] / StdLib / LibC / Stdio / tempnam.c

diff --git a/StdLib/LibC/Stdio/tempnam.c b/StdLib/LibC/Stdio/tempnam.c
new file mode 100644 (file)
index 0000000..368da84
--- /dev/null
+++ b/StdLib/LibC/Stdio/tempnam.c
@@ -0,0 +1,102 @@
+/*  $NetBSD: tempnam.c,v 1.19 2005/07/27 13:23:07 drochner Exp $  */\r
+\r
+/*\r
+ * Copyright (c) 1988, 1993\r
+ *  The Regents of the University of California.  All rights reserved.\r
+ *\r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions\r
+ * are met:\r
+ * 1. Redistributions of source code must retain the above copyright\r
+ *    notice, this list of conditions and the following disclaimer.\r
+ * 2. Redistributions in binary form must reproduce the above copyright\r
+ *    notice, this list of conditions and the following disclaimer in the\r
+ *    documentation and/or other materials provided with the distribution.\r
+ * 3. Neither the name of the University nor the names of its contributors\r
+ *    may be used to endorse or promote products derived from this software\r
+ *    without specific prior written permission.\r
+ *\r
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
+ * SUCH DAMAGE.\r
+ */\r
+#include  <LibConfig.h>\r
+#include  <sys/EfiCdefs.h>\r
+#if defined(LIBC_SCCS) && !defined(lint)\r
+#if 0\r
+static char sccsid[] = "@(#)tempnam.c 8.1 (Berkeley) 6/4/93";\r
+#else\r
+__RCSID("$NetBSD: tempnam.c,v 1.19 2005/07/27 13:23:07 drochner Exp $");\r
+#endif\r
+#endif /* LIBC_SCCS and not lint */\r
+\r
+#include  "namespace.h"\r
+#include  <sys/param.h>\r
+#include  <errno.h>\r
+#include  <stdio.h>\r
+#include  <stdlib.h>\r
+#include  <string.h>\r
+#include  <sys/EfiSysCall.h>\r
+#include  <paths.h>\r
+#include  "reentrant.h"\r
+#include  "local.h"\r
+\r
+__warn_references(tempnam,\r
+    "warning: tempnam() possibly used unsafely, use mkstemp() or mkdtemp()")\r
+\r
+static const char *\r
+trailsl(const char *f)\r
+{\r
+  const char *s = f;\r
+  while (*s)\r
+    s++;\r
+  return (f != s && s[-1] == '/') ? "" : "/";\r
+}\r
+\r
+static char *\r
+gentemp(char *name, size_t len, const char *tmp, const char  *pfx)\r
+{\r
+  (void)snprintf(name, len, "%s%s%sXXXX", tmp, trailsl(tmp), pfx);\r
+  return _mktemp(name);\r
+}\r
+\r
+char *\r
+tempnam(const char *dir, const char *pfx)\r
+{\r
+  int sverrno;\r
+  char *name, *f;\r
+  const char *tmp;\r
+\r
+  if (!(name = malloc((size_t)MAXPATHLEN)))\r
+    return NULL;\r
+\r
+  if (!pfx)\r
+    pfx = "tmp.";\r
+\r
+  if ((tmp = getenv("TMPDIR")) != NULL &&\r
+      (f = gentemp(name, (size_t)MAXPATHLEN, tmp, pfx)) != NULL)\r
+    return f;\r
+\r
+  if (dir != NULL &&\r
+      (f = gentemp(name, (size_t)MAXPATHLEN, dir, pfx)) != NULL)\r
+    return f;\r
+\r
+  //if ((f = gentemp(name, (size_t)MAXPATHLEN, P_tmpdir, pfx)) != NULL)\r
+  //  return f;\r
+\r
+  if ((f = gentemp(name, (size_t)MAXPATHLEN, _PATH_TMP, pfx)) != NULL)\r
+    return f;\r
+\r
+  sverrno = errno;\r
+  free(name);\r
+  errno = sverrno;\r
+  return(NULL);\r
+}\r