import newlib-2000-02-17 snapshot

1 files changed, 77 insertions, 0 deletions

diff --git a/newlib/libc/stdio/tmpfile.c b/newlib/libc/stdio/tmpfile.c
new file mode 100644
index 0000000..4b31396
--- /dev/null
+++ b/newlib/libc/stdio/tmpfile.c
@@ -0,0 +1,77 @@
+/*
+FUNCTION
+<<tmpfile>>---create a temporary file
+
+INDEX
+	tmpfile
+INDEX
+	_tmpfile_r
+
+ANSI_SYNOPSIS
+	#include <stdio.h>
+	FILE *tmpfile(void);
+
+	FILE *_tmpfile_r(void *<[reent]>);
+
+TRAD_SYNOPSIS
+	#include <stdio.h>
+	FILE *tmpfile();
+
+	FILE *_tmpfile_r(<[reent]>)
+	char *<[reent]>;
+
+DESCRIPTION
+Create a temporary file (a file which will be deleted automatically),
+using a name generated by <<tmpnam>>.  The temporary file is opened with
+the mode <<"wb+">>, permitting you to read and write anywhere in it
+as a binary file (without any data transformations the host system may
+perform for text files).
+
+The alternate function <<_tmpfile_r>> is a reentrant version.  The
+argument <[reent]> is a pointer to a reentrancy structure.
+
+RETURNS
+<<tmpfile>> normally returns a pointer to the temporary file.  If no
+temporary file could be created, the result is NULL, and <<errno>>
+records the reason for failure.
+
+PORTABILITY
+Both ANSI C and the System V Interface Definition (Issue 2) require
+<<tmpfile>>.
+
+Supporting OS subroutines required: <<close>>, <<fstat>>, <<getpid>>,
+<<isatty>>, <<lseek>>, <<open>>, <<read>>, <<sbrk>>, <<write>>.
+
+<<tmpfile>> also requires the global pointer <<environ>>.
+*/
+
+#include <stdio.h>
+#include <errno.h>
+
+FILE *
+_DEFUN (_tmpfile_r, (ptr),
+	struct _reent *ptr)
+{
+  FILE *fp;
+  int e;
+  char *f;
+  char buf[L_tmpnam];
+
+  if ((f = _tmpnam_r (ptr, buf)) == NULL)
+    return NULL;
+  fp = fopen (f, "wb+");
+  e = ptr->_errno;
+  _CAST_VOID remove (f);
+  ptr->_errno = e;
+  return fp;
+}
+
+#ifndef _REENT_ONLY
+
+FILE *
+_DEFUN_VOID (tmpfile)
+{
+  return _tmpfile_r (_REENT);
+}
+
+#endif