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Merge pull request #18 from lunixbochs/map_null_check

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check for mem_map size=0 (#14)
This commit is contained in:
Nguyen Anh Quynh 2015-08-24 09:16:38 +08:00
parent 52dba21c33 76d8541717
commit 4dc80eb4cf
3 changed files with 9 additions and 0 deletions
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2
bindings/python/unicorn/__init__.py
View file

@ -53,6 +53,7 @@ __all__ = [
'UC_ERR_CODE_INVALID',
'UC_ERR_HOOK',
'UC_ERR_INSN_INVALID',
'UC_ERR_MAP',
'UC_HOOK_INTR',
'UC_HOOK_INSN',
@ -122,6 +123,7 @@ UC_ERR_MEM_WRITE = 8 # Quit emulation due to invalid memory WRITE: uc_emu_st
UC_ERR_CODE_INVALID = 9 # Quit emulation due to invalid code address: uc_emu_start()
UC_ERR_HOOK = 10 # Invalid hook type: uc_hook_add()
UC_ERR_INSN_INVALID = 11 # Invalid instruction
UC_ERR_MAP = 12 # Invalid memory mapping
# All type of hooks for uc_hook_add() API.

1
include/unicorn/unicorn.h
View file

@ -116,6 +116,7 @@ typedef enum uc_err {
UC_ERR_CODE_INVALID, // Quit emulation due to invalid code address: uc_emu_start()
UC_ERR_HOOK, // Invalid hook type: uc_hook_add()
UC_ERR_INSN_INVALID, // Quit emulation due to invalid instruction: uc_emu_start()
UC_ERR_MAP, // Invalid memory mapping: uc_mem_map()
} uc_err;

6
uc.c
View file

@ -126,6 +126,8 @@ const char *uc_strerror(uc_err code)
return "Invalid instruction (UC_ERR_INSN_INVALID)";
case UC_ERR_HOOK:
return "Invalid hook type (UC_ERR_HOOK)";
case UC_ERR_MAP:
return "Invalid memory mapping (UC_ERR_MAP)";
}
}
@ -552,6 +554,10 @@ uc_err uc_mem_map(uch handle, uint64_t address, size_t size)
// invalid handle
return UC_ERR_UCH;
if (size == 0)
// invalid memory mapping
return UC_ERR_MAP;
// align to 8KB boundary
map_begin[map_count] = address & (~ (8*1024 - 1));
s = (size + 8*1024 - 1) & (~ (8*1024 - 1));