Add a -s flag for the same functionality as strace. Introduce a Name

type which is a String type that has no -s limitations applied to it.
Change most Strings in the code to Names and add a few extra syscalls,
namely munmap, read, rename and symlink.  This was enough to facilitate
following file descriptor allocations in the code more easily and
getting a hint at what's being read/written from/to files.  More
syscalls should really be added.

While here, fix an off-by-one bug in the buffer truncation code and
add a fflush so that truss's output reflects the syscall that the
program is stuck in.

Sponsored by:	Sophos/Activestate
MFC after:	2 weeks

1 files changed, 1 insertions, 0 deletions

diff --git a/usr.bin/truss/truss.h b/usr.bin/truss/truss.h
index 00df4d6..24558ba 100644
--- a/usr.bin/truss/truss.h
+++ b/usr.bin/truss/truss.h
@@ -37,6 +37,7 @@ struct trussinfo
 	int pid;
 	int flags;
 	int in_fork;
+	int strsize;
 	FILE *outfile;
 
 	struct timespec start_time;