Support readlink(2) better. Readlink does not nul terminate the

result buffer, so we need to format it ourselves.  The problem is
that the length is stored as the return value from readlink, so we
need to pass the return value from our syscall into print_arg.

Motivated by: truss garbage on my screen from reading /etc/malloc.conf.

1 files changed, 2 insertions, 2 deletions

diff --git a/usr.bin/truss/ia64-fbsd.c b/usr.bin/truss/ia64-fbsd.c
index 15b60bf..7ca6d7f 100644
--- a/usr.bin/truss/ia64-fbsd.c
+++ b/usr.bin/truss/ia64-fbsd.c
@@ -204,7 +204,7 @@ ia64_syscall_entry(struct trussinfo *trussinfo, int nargs) {
 	      i < (fsc.nargs - 1) ? "," : "");
 #endif
       if (sc && !(sc->args[i].type & OUT)) {
-	fsc.s_args[i] = print_arg(Procfd, &sc->args[i], fsc.args);
+	fsc.s_args[i] = print_arg(Procfd, &sc->args[i], fsc.args, 0);
       }
     }
 #if DEBUG
@@ -308,7 +308,7 @@ ia64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
 	if (errorp)
 	  asprintf(&temp, "0x%lx", fsc.args[sc->args[i].offset]);
 	else
-	  temp = print_arg(Procfd, &sc->args[i], fsc.args);
+	  temp = print_arg(Procfd, &sc->args[i], fsc.args, retval);
 	fsc.s_args[i] = temp;
       }
     }