prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Error in the `search` command
  The `search` command appears to have some issues while searching signed integer data  
  For example while debugging a x86 program:
  
  ```
  pwndbg> search -4 0xf7eebf83
  Traceback (most recent call last):
    File "/home/bruce30262/pwndbg/pwndbg/commands/__init__.py", line 57, in __call__
      return self.function(*args, **kwargs)
    File "/home/bruce30262/pwndbg/pwndbg/commands/__init__.py", line 162, in _ArgparsedCommand
      return function(**vars(args))
    File "/home/bruce30262/pwndbg/pwndbg/commands/__init__.py", line 115, in _OnlyWhenRunning
      return function(*a, **kw)
    File "/home/bruce30262/pwndbg/pwndbg/commands/search.py", line 112, in search
      value = struct.pack(fmt, value)
  struct.error: argument out of range
  ```
  
  This is because `pwndbg.commands.fix_int(value)` returns `-135348349` instead of an unsigned integer, and the packing format in [search.py](https://github.com/pwndbg/pwndbg/blob/b1892b27741a478cd5361061b0b4dda9ef46d02e/pwndbg/commands/search.py#L106) only support the unsigned data type, causing the error.  
  Commands like  `search -4 -- -100` will also cause the same error.  
  Kind of curious why it only support the unsigned data type though. It might need some additional check for the appropriate packing format.
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `pwndbg/commands/search.py`
  Content:
  ```
  1 #!/usr/bin/env python
  2 # -*- coding: utf-8 -*-
  3 from __future__ import absolute_import
  4 from __future__ import division
  5 from __future__ import print_function
  6 from __future__ import unicode_literals
  7 
  8 import argparse
  9 import codecs
  10 import os
  11 import struct
  12 
  13 import gdb
  14 
  15 import pwndbg.color.memory as M
  16 import pwndbg.commands
  17 import pwndbg.config
  18 import pwndbg.enhance
  19 import pwndbg.search
  20 import pwndbg.vmmap
  21 
  22 saved = set()
  23 
  24 def print_search_hit(address):
  25     """Prints out a single search hit.
  26 
  27     Arguments:
  28         address(int): Address to print
  29     """
  30     if not address:
  31         return
  32 
  33     vmmap = pwndbg.vmmap.find(address)
  34     if vmmap:
  35         region = os.path.basename(vmmap.objfile)
  36     else:
  37         region = '[mapped]'
  38 
  39     region = region.ljust(15)
  40 
  41     region = M.get(address, region)
  42     addr = M.get(address)
  43     display = pwndbg.enhance.enhance(address)
  44     print(region,addr,display)
  45 
  46 auto_save = pwndbg.config.Parameter('auto-save-search', False,
  47                         'automatically pass --save to "search" command')
  48 
  49 parser = argparse.ArgumentParser(description='''
  50 Search memory for byte sequences, strings, pointers, and integer values
  51 ''')
  52 parser.add_argument('-t', '--type', choices=['byte','short','dword','qword','pointer','string','bytes'],
  53                     help='Size of search target', default='bytes', type=str)
  54 parser.add_argument('-1', '--byte', dest='type', action='store_const', const='byte',
  55                     help='Search for a 1-byte integer')
  56 parser.add_argument('-2', '--word', dest='type', action='store_const', const='word',
  57                     help='Search for a 2-byte integer')
  58 parser.add_argument('-4', '--dword', dest='type', action='store_const', const='dword',
  59                     help='Search for a 4-byte integer')
  60 parser.add_argument('-8', '--qword', dest='type', action='store_const', const='qword',
  61                     help='Search for an 8-byte integer')
  62 parser.add_argument('-p', '--pointer', dest='type', action='store_const', const='pointer',
  63                     help='Search for a pointer-width integer')
  64 parser.add_argument('-x', '--hex', action='store_true',
  65                     help='Target is a hex-encoded (for bytes/strings)')
  66 parser.add_argument('-s', '--string', action='store_true',
  67                     help='Target is a raw string')
  68 parser.add_argument('-e', '--executable', action='store_true',
  69                     help='Search executable segments only')
  70 parser.add_argument('-w', '--writable', action='store_true',
  71                     help='Search writable segments only')
  72 parser.add_argument('value', type=str,
  73                     help='Value to search for')
  74 parser.add_argument('mapping', type=str, nargs='?', default=None,
  75                     help='Mapping to search [e.g. libc]')
  76 parser.add_argument('--save', action='store_true', default=None,
  77                     help='Save results for --resume.  Default comes from config %r' % auto_save.name)
  78 parser.add_argument('--no-save', action='store_false', default=None, dest='save',
  79                     help='Invert --save')
  80 parser.add_argument('-n', '--next', action='store_true',
  81                     help='Search only locations returned by previous search with --save')
  82 
  83 @pwndbg.commands.ArgparsedCommand(parser)
  84 @pwndbg.commands.OnlyWhenRunning
  85 def search(type, hex, string, executable, writable, value, mapping, save, next):
  86     # Adjust pointer sizes to the local architecture
  87     if type == 'pointer':
  88         type = {
  89             4: 'dword',
  90             8: 'qword'
  91         }[pwndbg.arch.ptrsize]
  92 
  93     if save is None:
  94         save = bool(pwndbg.config.auto_save_search)
  95 
  96     if hex:
  97         value = codecs.decode(value, 'hex')
  98 
  99     # Convert to an integer if needed, and pack to bytes
  100     if type not in ('string', 'bytes'):
  101         value = pwndbg.commands.fix_int(value)
  102         fmt = {
  103             'little': '<',
  104             'big': '>'
  105         }[pwndbg.arch.endian] + {
  106             'byte': 'B',
  107             'short': 'H',
  108             'dword': 'L',
  109             'qword': 'Q'
  110         }[type]
  111 
  112         value = struct.pack(fmt, value)
  113 
  114     # Null-terminate strings
  115     elif type == 'string':
  116         value += b'\x00'
  117 
  118     # Prep the saved set if necessary
  119     global saved
  120     if save:
  121         saved = set()
  122 
  123     # Perform the search
  124     for address in pwndbg.search.search(value,
  125                                         mapping=mapping,
  126                                         executable=executable,
  127                                         writable=writable):
  128 
  129         if next and address not in saved:
  130             continue
  131 
  132         if save:
  133             saved.add(address)
  134 
  135         print_search_hit(address)
  136
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/pwndbg/commands/search.py b/pwndbg/commands/search.py
  --- a/pwndbg/commands/search.py
  +++ b/pwndbg/commands/search.py
  @@ -12,6 +12,7 @@
   
   import gdb
   
  +import pwndbg.arch
   import pwndbg.color.memory as M
   import pwndbg.commands
   import pwndbg.config
  @@ -99,6 +100,7 @@
       # Convert to an integer if needed, and pack to bytes
       if type not in ('string', 'bytes'):
           value = pwndbg.commands.fix_int(value)
  +        value &= pwndbg.arch.ptrmask
           fmt = {
               'little': '<',
               'big': '>'
  
verification_info: {"golden_diff": "diff --git a/pwndbg/commands/search.py b/pwndbg/commands/search.py\n--- a/pwndbg/commands/search.py\n+++ b/pwndbg/commands/search.py\n@@ -12,6 +12,7 @@\n \n import gdb\n \n+import pwndbg.arch\n import pwndbg.color.memory as M\n import pwndbg.commands\n import pwndbg.config\n@@ -99,6 +100,7 @@\n     # Convert to an integer if needed, and pack to bytes\n     if type not in ('string', 'bytes'):\n         value = pwndbg.commands.fix_int(value)\n+        value &= pwndbg.arch.ptrmask\n         fmt = {\n             'little': '<',\n             'big': '>'\n", "issue": "Error in the `search` command\nThe `search` command appears to have some issues while searching signed integer data  \nFor example while debugging a x86 program:\n\n```\npwndbg> search -4 0xf7eebf83\nTraceback (most recent call last):\n  File \"/home/bruce30262/pwndbg/pwndbg/commands/__init__.py\", line 57, in __call__\n    return self.function(*args, **kwargs)\n  File \"/home/bruce30262/pwndbg/pwndbg/commands/__init__.py\", line 162, in _ArgparsedCommand\n    return function(**vars(args))\n  File \"/home/bruce30262/pwndbg/pwndbg/commands/__init__.py\", line 115, in _OnlyWhenRunning\n    return function(*a, **kw)\n  File \"/home/bruce30262/pwndbg/pwndbg/commands/search.py\", line 112, in search\n    value = struct.pack(fmt, value)\nstruct.error: argument out of range\n```\n\nThis is because `pwndbg.commands.fix_int(value)` returns `-135348349` instead of an unsigned integer, and the packing format in [search.py](https://github.com/pwndbg/pwndbg/blob/b1892b27741a478cd5361061b0b4dda9ef46d02e/pwndbg/commands/search.py#L106) only support the unsigned data type, causing the error.  \nCommands like  `search -4 -- -100` will also cause the same error.  \nKind of curious why it only support the unsigned data type though. It might need some additional check for the appropriate packing format.\n\n", "before_files": [{"content": "#!/usr/bin/env python\n# -*- coding: utf-8 -*-\nfrom __future__ import absolute_import\nfrom __future__ import division\nfrom __future__ import print_function\nfrom __future__ import unicode_literals\n\nimport argparse\nimport codecs\nimport os\nimport struct\n\nimport gdb\n\nimport pwndbg.color.memory as M\nimport pwndbg.commands\nimport pwndbg.config\nimport pwndbg.enhance\nimport pwndbg.search\nimport pwndbg.vmmap\n\nsaved = set()\n\ndef print_search_hit(address):\n    \"\"\"Prints out a single search hit.\n\n    Arguments:\n        address(int): Address to print\n    \"\"\"\n    if not address:\n        return\n\n    vmmap = pwndbg.vmmap.find(address)\n    if vmmap:\n        region = os.path.basename(vmmap.objfile)\n    else:\n        region = '[mapped]'\n\n    region = region.ljust(15)\n\n    region = M.get(address, region)\n    addr = M.get(address)\n    display = pwndbg.enhance.enhance(address)\n    print(region,addr,display)\n\nauto_save = pwndbg.config.Parameter('auto-save-search', False,\n                        'automatically pass --save to \"search\" command')\n\nparser = argparse.ArgumentParser(description='''\nSearch memory for byte sequences, strings, pointers, and integer values\n''')\nparser.add_argument('-t', '--type', choices=['byte','short','dword','qword','pointer','string','bytes'],\n                    help='Size of search target', default='bytes', type=str)\nparser.add_argument('-1', '--byte', dest='type', action='store_const', const='byte',\n                    help='Search for a 1-byte integer')\nparser.add_argument('-2', '--word', dest='type', action='store_const', const='word',\n                    help='Search for a 2-byte integer')\nparser.add_argument('-4', '--dword', dest='type', action='store_const', const='dword',\n                    help='Search for a 4-byte integer')\nparser.add_argument('-8', '--qword', dest='type', action='store_const', const='qword',\n                    help='Search for an 8-byte integer')\nparser.add_argument('-p', '--pointer', dest='type', action='store_const', const='pointer',\n                    help='Search for a pointer-width integer')\nparser.add_argument('-x', '--hex', action='store_true',\n                    help='Target is a hex-encoded (for bytes/strings)')\nparser.add_argument('-s', '--string', action='store_true',\n                    help='Target is a raw string')\nparser.add_argument('-e', '--executable', action='store_true',\n                    help='Search executable segments only')\nparser.add_argument('-w', '--writable', action='store_true',\n                    help='Search writable segments only')\nparser.add_argument('value', type=str,\n                    help='Value to search for')\nparser.add_argument('mapping', type=str, nargs='?', default=None,\n                    help='Mapping to search [e.g. libc]')\nparser.add_argument('--save', action='store_true', default=None,\n                    help='Save results for --resume.  Default comes from config %r' % auto_save.name)\nparser.add_argument('--no-save', action='store_false', default=None, dest='save',\n                    help='Invert --save')\nparser.add_argument('-n', '--next', action='store_true',\n                    help='Search only locations returned by previous search with --save')\n\n@pwndbg.commands.ArgparsedCommand(parser)\n@pwndbg.commands.OnlyWhenRunning\ndef search(type, hex, string, executable, writable, value, mapping, save, next):\n    # Adjust pointer sizes to the local architecture\n    if type == 'pointer':\n        type = {\n            4: 'dword',\n            8: 'qword'\n        }[pwndbg.arch.ptrsize]\n\n    if save is None:\n        save = bool(pwndbg.config.auto_save_search)\n\n    if hex:\n        value = codecs.decode(value, 'hex')\n\n    # Convert to an integer if needed, and pack to bytes\n    if type not in ('string', 'bytes'):\n        value = pwndbg.commands.fix_int(value)\n        fmt = {\n            'little': '<',\n            'big': '>'\n        }[pwndbg.arch.endian] + {\n            'byte': 'B',\n            'short': 'H',\n            'dword': 'L',\n            'qword': 'Q'\n        }[type]\n\n        value = struct.pack(fmt, value)\n\n    # Null-terminate strings\n    elif type == 'string':\n        value += b'\\x00'\n\n    # Prep the saved set if necessary\n    global saved\n    if save:\n        saved = set()\n\n    # Perform the search\n    for address in pwndbg.search.search(value,\n                                        mapping=mapping,\n                                        executable=executable,\n                                        writable=writable):\n\n        if next and address not in saved:\n            continue\n\n        if save:\n            saved.add(address)\n\n        print_search_hit(address)\n", "path": "pwndbg/commands/search.py"}], "after_files": [{"content": "#!/usr/bin/env python\n# -*- coding: utf-8 -*-\nfrom __future__ import absolute_import\nfrom __future__ import division\nfrom __future__ import print_function\nfrom __future__ import unicode_literals\n\nimport argparse\nimport codecs\nimport os\nimport struct\n\nimport gdb\n\nimport pwndbg.arch\nimport pwndbg.color.memory as M\nimport pwndbg.commands\nimport pwndbg.config\nimport pwndbg.enhance\nimport pwndbg.search\nimport pwndbg.vmmap\n\nsaved = set()\n\ndef print_search_hit(address):\n    \"\"\"Prints out a single search hit.\n\n    Arguments:\n        address(int): Address to print\n    \"\"\"\n    if not address:\n        return\n\n    vmmap = pwndbg.vmmap.find(address)\n    if vmmap:\n        region = os.path.basename(vmmap.objfile)\n    else:\n        region = '[mapped]'\n\n    region = region.ljust(15)\n\n    region = M.get(address, region)\n    addr = M.get(address)\n    display = pwndbg.enhance.enhance(address)\n    print(region,addr,display)\n\nauto_save = pwndbg.config.Parameter('auto-save-search', False,\n                        'automatically pass --save to \"search\" command')\n\nparser = argparse.ArgumentParser(description='''\nSearch memory for byte sequences, strings, pointers, and integer values\n''')\nparser.add_argument('-t', '--type', choices=['byte','short','dword','qword','pointer','string','bytes'],\n                    help='Size of search target', default='bytes', type=str)\nparser.add_argument('-1', '--byte', dest='type', action='store_const', const='byte',\n                    help='Search for a 1-byte integer')\nparser.add_argument('-2', '--word', dest='type', action='store_const', const='word',\n                    help='Search for a 2-byte integer')\nparser.add_argument('-4', '--dword', dest='type', action='store_const', const='dword',\n                    help='Search for a 4-byte integer')\nparser.add_argument('-8', '--qword', dest='type', action='store_const', const='qword',\n                    help='Search for an 8-byte integer')\nparser.add_argument('-p', '--pointer', dest='type', action='store_const', const='pointer',\n                    help='Search for a pointer-width integer')\nparser.add_argument('-x', '--hex', action='store_true',\n                    help='Target is a hex-encoded (for bytes/strings)')\nparser.add_argument('-s', '--string', action='store_true',\n                    help='Target is a raw string')\nparser.add_argument('-e', '--executable', action='store_true',\n                    help='Search executable segments only')\nparser.add_argument('-w', '--writable', action='store_true',\n                    help='Search writable segments only')\nparser.add_argument('value', type=str,\n                    help='Value to search for')\nparser.add_argument('mapping', type=str, nargs='?', default=None,\n                    help='Mapping to search [e.g. libc]')\nparser.add_argument('--save', action='store_true', default=None,\n                    help='Save results for --resume.  Default comes from config %r' % auto_save.name)\nparser.add_argument('--no-save', action='store_false', default=None, dest='save',\n                    help='Invert --save')\nparser.add_argument('-n', '--next', action='store_true',\n                    help='Search only locations returned by previous search with --save')\n\n@pwndbg.commands.ArgparsedCommand(parser)\n@pwndbg.commands.OnlyWhenRunning\ndef search(type, hex, string, executable, writable, value, mapping, save, next):\n    # Adjust pointer sizes to the local architecture\n    if type == 'pointer':\n        type = {\n            4: 'dword',\n            8: 'qword'\n        }[pwndbg.arch.ptrsize]\n\n    if save is None:\n        save = bool(pwndbg.config.auto_save_search)\n\n    if hex:\n        value = codecs.decode(value, 'hex')\n\n    # Convert to an integer if needed, and pack to bytes\n    if type not in ('string', 'bytes'):\n        value = pwndbg.commands.fix_int(value)\n        value &= pwndbg.arch.ptrmask\n        fmt = {\n            'little': '<',\n            'big': '>'\n        }[pwndbg.arch.endian] + {\n            'byte': 'B',\n            'short': 'H',\n            'dword': 'L',\n            'qword': 'Q'\n        }[type]\n\n        value = struct.pack(fmt, value)\n\n    # Null-terminate strings\n    elif type == 'string':\n        value += b'\\x00'\n\n    # Prep the saved set if necessary\n    global saved\n    if save:\n        saved = set()\n\n    # Perform the search\n    for address in pwndbg.search.search(value,\n                                        mapping=mapping,\n                                        executable=executable,\n                                        writable=writable):\n\n        if next and address not in saved:\n            continue\n\n        if save:\n            saved.add(address)\n\n        print_search_hit(address)\n", "path": "pwndbg/commands/search.py"}]}