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, 2 insertions, 2 deletions

diff --git a/usr.bin/truss/syscall.h b/usr.bin/truss/syscall.h
index 838dfe2..2783486 100644
--- a/usr.bin/truss/syscall.h
+++ b/usr.bin/truss/syscall.h
@@ -30,7 +30,7 @@
  * $FreeBSD$
  */
 
-enum Argtype { None = 1, Hex, Octal, Int, String, Ptr, Stat, Ioctl, Quad,
+enum Argtype { None = 1, Hex, Octal, Int, Name, String, Ptr, Stat, Ioctl, Quad,
 	Signal, Sockaddr, StringArray, Timespec, Timeval, Itimerval, Pollfd, 
 	Fd_set, Sigaction, Fcntl, Mprot, Mmapflags, Whence, Readlinkres };
 
@@ -53,7 +53,7 @@ struct syscall {
 
 struct syscall *get_syscall(const char*);
 char *get_string(int, void*, int);
-char *print_arg(int, struct syscall_args *, unsigned long*, long);
+char *print_arg(int, struct syscall_args *, unsigned long*, long, struct trussinfo *);
 void print_syscall(struct trussinfo *, const char *, int, char **);
 void print_syscall_ret(struct trussinfo *, const char *, int, char **, int,
     long);