git: truss - Use pread(2) instead of seek+read for reading the process' memory.

[Imre Vadasz]

commit 6201675f67266a084102e06781b29a135ed50eff
Author: Imre Vadász <imre at vdsz.com>
Date:   Sun Dec 28 14:46:02 2025 +0100

    truss - Use pread(2) instead of seek+read for reading the process' memory.
    
    * Also drastically simplifies get_string() by setting an absolute maximum
      on the length of the string at MAXPATHLEN. That makes it easy to just use
      a pread() to read the memory, and then we can simply extract the string
      using strndup().

Summary of changes:
 usr.bin/truss/syscall.h     |  2 +-
 usr.bin/truss/syscalls.c    | 84 ++++++++++++++++-----------------------------
 usr.bin/truss/x86_64-fbsd.c | 10 +++---
 3 files changed, 34 insertions(+), 62 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/6201675f67266a084102e06781b29a135ed50eff


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