duplicate argv at the start of main() because it gets modified later;

pointed out by deraadt@ ok markus@

1 files changed, 9 insertions, 3 deletions

diff --git a/usr.bin/ssh/scp.c b/usr.bin/ssh/scp.c
index 60cae3f5ab4..faa756ee182 100644
--- a/usr.bin/ssh/scp.c
+++ b/usr.bin/ssh/scp.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: scp.c,v 1.144 2006/07/09 15:15:10 stevesk Exp $ */
+/* $OpenBSD: scp.c,v 1.145 2006/07/10 12:03:20 djm Exp $ */
 /*
  * scp - secure remote copy.  This is basically patched BSD rcp which
  * uses ssh to do the data transfer (instead of using rcmd).
@@ -268,15 +268,21 @@ void usage(void);
 int
 main(int argc, char **argv)
 {
-	int ch, fflag, tflag, status;
+	int ch, fflag, tflag, status, n;
 	double speed;
-	char *targ, *endp;
+	char *targ, *endp, **newargv;
 	extern char *optarg;
 	extern int optind;
 
 	/* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
 	sanitise_stdfd();
 
+	/* Copy argv, because we modify it */
+	newargv = xcalloc(MAX(argc + 1, 1), sizeof(*newargv));
+	for (n = 0; n < argc; n++)
+		newargv[n] = xstrdup(argv[n]);
+	argv = newargv;
+
 	memset(&args, '\0', sizeof(args));
 	args.list = NULL;
 	addargs(&args, "%s", ssh_program);