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解决LC_CODE_SIGNATURE不存在时写入异常数据的问题 #18

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merged 1 commit into from
Mar 23, 2018
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解决LC_CODE_SIGNATURE不存在时写入异常数据的问题 #18

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15 changes: 8 additions & 7 deletions source/restore-symbol.m
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Original file line number Diff line number Diff line change
Expand Up @@ -177,13 +177,14 @@ void restore_symbol(NSString * inpath, NSString *outpath, NSString *jsonPath, bo
}
}

struct linkedit_data_command *command = (struct linkedit_data_command *)((char *)outData.mutableBytes + codesignature.commandOffset);
uint32_t tmp_offset = command -> dataoff + increase_size_all_without_padding;
uint32_t final_offset = vm_addr_round(tmp_offset, 16);

string_table_padding = final_offset - tmp_offset;
command -> dataoff = final_offset;

if (codesignature) {
struct linkedit_data_command *command = (struct linkedit_data_command *)((char *)outData.mutableBytes + codesignature.commandOffset);
uint32_t tmp_offset = command -> dataoff + increase_size_all_without_padding;
uint32_t final_offset = vm_addr_round(tmp_offset, 16);

string_table_padding = final_offset - tmp_offset;
command -> dataoff = final_offset;
}
}


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