ldid的help语法

LDID(1)         FreeBSD General Commands Manual            LDID(1)

NAME
     ldid – Link Identity Editor

SYNOPSIS
     ldid [-aDdehMPqu] [-Acputype:subtype]
      [-C[adhoc | enforcement | expires |
      hard | host | kill | library-validation | restrict | runtime]]
      [-Kkey.p12] [-r | -Sfile | -s] [-Ttimestamp] file ...

DESCRIPTION
     ldid adds SHA1 and SHA256 hashes to a Mach-O file so that they can be run
     on a system that has validation but not signature verification.

     -a       Print the CPU types and subtypes in hexadecimal.

     -Acputype:subtype
          When used with -a, -D, -e, -h, -q, or -u, only act on the slice
          specified by cputype and subtype.  cputype and subtype should
          both be integers.

     -C[adhoc | enforcement | expires | hard | host | kill |
          library-validation | restrict | runtime]
          Specify the option flags to embed in the code signature.    See
          codesign(1) for details about these options.

     -D       Reset the cryptid.

     -d       Print the cryptid in the binaries if it exists.  For
          compatibility reasons it also acts as -h, but this will be
          removed in the future.

     -e       Print the entitlements in each slice, or the slice specified by
          -A, to stdout.

     -h       Print information about the signature, such as hash types,
          flags, CDHash, and CodeDirectory version to stdout.

     -Kkey.p12
          Sign using the identity in key.p12.  This will give the binary a
          valid signature so that it can be run on a system with signature
          validation.  key.p12 must not have a password.

     -M       When used with -S, merge the new and existing entitlements
          instead of replacing the existing entitlements, this is useful
          for adding a few specific entitlements to a handful of binaries.

     -P       Mark the Mach-O as a platform binary.

     -Qfile   Embed the requirements found in file.

     -q       Print embedded requirements of the binaries.

     -r       Remove the signature from the Mach-O.

     -S[file]
          Pseudo sign the Mach-O binaries.    If file is specified then the
          entitlements found in file will be embedded in the Mach-O.

     -s       Resign the Mach-O binaries while keeping the existing
          entitlements.

     -Ttimestamp
          When signing a dylib, set the timestamp to timestamp.  timestamp
          should be an UNIX timestamp in seconds, if timestamp is a single
          dash (‘-’), the timestamp will be set to a hash of the Mach-O
          header.

     -u       If the binary was linked against UIKit, then print the UIKit
          version that the Mach-O binaries was linked against.

EXAMPLES
     The command:

       ldid -S file

     will fakesign file with no entitlements.

     The command:

       ldid -Cadhoc -K/path/to/key.p12 -Sent.xml file

     will sign file using the key in /path/to/key.p12 with the entitlements
     found in ent.xml, and mark it as an adhoc signature.

     The command:

       ldid -Sent.xml -M file

     will add the entitlements in ent.xml to the entitlements already in file.

     The command:

       ldid -e file > ent.xml

     will save the entitlements found in each slice of file to ent.xml.

SEE ALSO
     codesign(1)

HISTORY
     The ldid utility was written by Jay "Saurik" Freeman.  iPhoneOS 1.2.0 and
     2.0 support was added on April 6, 2008.  -S was added on June 13, 2008.
     SHA256 support was added on August 25, 2016, fixing iOS 11 support.  iOS
     14 support was added on July 31, 2020 by Kabir Oberai.  iOS 15 support
     was added on June 11, 2021.

iPhoneDevWiki            October 8, 2021          iPhoneDevWiki