1 files changed, 93 insertions, 0 deletions
diff --git a/src/util/argv_attr_scan.c b/src/util/argv_attr_scan.c
new file mode 100644
index 0000000..0987bf8
--- /dev/null
+++ b/src/util/argv_attr_scan.c
@@ -0,0 +1,93 @@
+/*++
+/* NAME
+/*	argv_attr_scan
+/* SUMMARY
+/*	read ARGV from stream
+/* SYNOPSIS
+/*	#include <argv_attr.h>
+/*
+/*	int	argv_attr_scan(scan_fn, stream, flags, ptr)
+/*	ATTR_SCAN_COMMON_FN scan_fn;
+/*	VSTREAM *stream;
+/*	int	flags;
+/*	void	*ptr;
+/* DESCRIPTION
+/*	argv_attr_scan() creates an ARGV and reads its contents
+/*	from the named stream using the specified attribute scan
+/*	routine. argv_attr_scan() is meant to be passed as a call-back
+/*	to attr_scan(), thusly:
+/*
+/*	ARGV *argv = 0;
+/*	...
+/*	... RECV_ATTR_FUNC(argv_attr_scan, (void *) &argv), ...
+/*	...
+/*	if (argv)
+/*	    argv_free(argv);
+/* DIAGNOSTICS
+/*	Fatal: out of memory.
+/*
+/*	In case of error, this function returns non-zero and creates
+/*	an ARGV null pointer.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/
+
+ /*
+  * System library.
+  */
+#include <sys_defs.h>
+
+ /*
+  * Utility library.
+  */
+#include <argv.h>
+#include <argv_attr.h>
+#include <attr.h>
+#include <msg.h>
+#include <vstream.h>
+#include <vstring.h>
+
+/* argv_attr_scan - write ARGV to stream */
+
+int     argv_attr_scan(ATTR_PRINT_COMMON_FN scan_fn, VSTREAM *fp,
+		               int flags, void *ptr)
+{
+    ARGV   *argv = 0;
+    int     size;
+    int     ret;
+
+    if ((ret = scan_fn(fp, flags | ATTR_FLAG_MORE,
+		       RECV_ATTR_INT(ARGV_ATTR_SIZE, &size),
+		       ATTR_TYPE_END)) == 1) {
+	if (msg_verbose)
+	    msg_info("argv_attr_scan count=%d", size);
+	if (size < 0 || size > ARGV_ATTR_MAX) {
+	    msg_warn("invalid size %d from %s while reading ARGV",
+		     size, VSTREAM_PATH(fp));
+	    ret = -1;
+	} else if (size > 0) {
+	    VSTRING *buffer = vstring_alloc(100);
+
+	    argv = argv_alloc(size);
+	    while (ret == 1 && size-- > 0) {
+		if ((ret = scan_fn(fp, flags | ATTR_FLAG_MORE,
+				   RECV_ATTR_STR(ARGV_ATTR_VALUE, buffer),
+				   ATTR_TYPE_END)) == 1)
+		    argv_add(argv, vstring_str(buffer), ARGV_END);
+	    }
+	    argv_terminate(argv);
+	    vstring_free(buffer);
+	}
+    }
+    *(ARGV **) ptr = argv;
+    if (msg_verbose)
+	msg_info("argv_attr_scan ret=%d", ret);
+    return (ret);
+}