Add an fz_tempfile utility.

This will be required for the gprf work.

1 files changed, 26 insertions, 0 deletions

diff --git a/source/fitz/tempfile.c b/source/fitz/tempfile.c
new file mode 100644
index 00000000..2115923e
--- /dev/null
+++ b/source/fitz/tempfile.c
@@ -0,0 +1,26 @@
+#include "mupdf/fitz.h"
+
+/* Produce a (hopefully) unique temporary filename based upon a given
+ * 'base' name.
+ *
+ * Isolated into a file that can be modified on a per-platform basis
+ * if required.
+ */
+
+char *fz_tempfilename(fz_context *ctx, const char *base)
+{
+	char *tmp = tempnam(".", base);
+	char *ret;
+
+	if (tmp == NULL)
+		fz_throw(ctx, FZ_ERROR_GENERIC, "Failed to construct temporary file name");
+	ret = fz_strdup(ctx, tmp);
+
+	/* The value returned from tempnam is allocated using malloc.
+	 * We must therefore free it using free. Real, honest to God
+	 * free, not Memento_free, or other wrapped versions.
+	 */
+#undef free
+	(free)(tmp);
+	return ret;
+}