1 files changed, 72 insertions, 0 deletions
diff --git a/source3/script/tests/smbspool_argv_wrapper.c b/source3/script/tests/smbspool_argv_wrapper.c
new file mode 100644
index 0000000..6f84f3b
--- /dev/null
+++ b/source3/script/tests/smbspool_argv_wrapper.c
@@ -0,0 +1,72 @@
+/*
+   Wrapper for smbspool to test Device URI in argv[0]
+
+   Copyright (C) Bryan Mason 2019
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+
+/*
+ * Before calling a backend like smbspool, CUPS will set argv[0] to
+ * the Device URI.  This program wraps a program like smbspool and
+ * sets argv[0] to the device URI before exec()ing the actual backend
+ * program.
+ */
+
+int main(int argc, char *argv[], char *envp[])
+{
+	char **new_argv;
+	char *exec_path;
+	int a;
+	int rv;
+/*
+ * Expected parameters:
+ *
+ * smbspool_argv_wrapper smbspool uri job user title copies opts file(s)
+ * argv[0]	       1	2   3   4    5     6      7    8
+ *
+ */
+	/* Allocate memory for the new arguments (exit on failure). */
+	new_argv = calloc(argc, sizeof(char *));
+	if (new_argv == 0) {
+		exit(ENOMEM);
+	}
+
+	/* Save the path to the smbspool executable */
+	exec_path = argv[1];
+
+	/*
+	 * Shift the rest of the args so smbspool is called with:
+	 *
+	 * uri     job user title copies opts file(s)
+	 * argv[0] 1   2    3     4      5    6
+	 */
+
+	for (a = 2; a < argc; a++) {
+		new_argv[a-2] = argv[a];
+	}
+
+	/* Execute smbspool with new arguments */
+	rv = execve(exec_path, new_argv, envp);
+	if (rv == -1) {
+		exit(errno);
+	}
+
+	/* Avoid compiler error/warning */
+	return 0;
+}