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Make sys_lseek return offset location #1355

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Jan 21, 2019
Merged

Make sys_lseek return offset location #1355

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6 changes: 2 additions & 4 deletions manticore/platforms/linux.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1248,19 +1248,17 @@ def sys_lseek(self, fd, offset, whence):
SEEK_CUR: The file offset is set to its current location plus offset bytes.
SEEK_END: The file offset is set to the size of the file plus offset bytes.

:return: 0 (Success), or EBADF (fd is not a valid file descriptor or is not open)
:return: offset from file beginning, or EBADF (fd is not a valid file descriptor or is not open)

'''
signed_offset = self._to_signed_dword(offset)
try:
self._get_fd(fd).seek(signed_offset, whence)
return self._get_fd(fd).seek(signed_offset, whence)
except FdError as e:
logger.info(("LSEEK: Not valid file descriptor on lseek."
"Fd not seekable. Returning EBADF"))
return -e.err

return 0

def sys_read(self, fd, buf, count):
data: bytes = bytes()
if count != 0:
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