Function Graph 0Basic Block 0Opcode: 55sub_80499a0:Opcode: 55push    ebpOpcode: 89 e5mov     ebp, espOpcode: 83 ec 18sub     esp, 0x18 {var_1c}Opcode: 89 75 f8mov     dword [ebp-0x8 {var_c}], esiOpcode: 89 7d f4mov     dword [ebp-0xc {var_10}], ediOpcode: 89 5d f0mov     dword [ebp-0x10 {var_14}], ebxOpcode: 8b 45 08mov     eax, dword [ebp+0x8 {arg_4}]Opcode: 89 c6mov     esi, eaxOpcode: 83 fe 00cmp     esi, 0x0Opcode: 75 14jne     0x80499cdBasic Block 1Opcode: 89 f0mov     eax, esiOpcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: e8 59 52 00 00call    sub_804ec30Opcode: 83 c0 01add     eax, 0x1Opcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: e8 5e 2f 00 00call    sub_804c940Opcode: 89 c7mov     edi, eaxOpcode: 83 f8 00cmp     eax, 0x0Opcode: 75 14jne     0x80499fdBasic Block 2Opcode: 8d 05 9c fc 04 08lea     eax, [data_804fc9c]  {"Invalid username"}Opcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: e8 29 fc ff ffcall    sub_80495f0Opcode: c6 45 ff 00mov     byte [ebp-0x1 {var_5}], 0x0Opcode: eb 75jmp     0x8049a42Basic Block 3Opcode: 89 f8mov     eax, ediOpcode: 89 f1mov     ecx, esiOpcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: 89 4c 24 04mov     dword [esp+0x4 {var_18}], ecxOpcode: e8 c3 50 00 00call    sub_804ead0Opcode: 81 3d 54 00 05 08 00 00 00 00cmp     dword [data_8050054], 0x0Opcode: 89 c3mov     ebx, eaxOpcode: 74 17je      0x8049a32Basic Block 4Opcode: 8d 05 71 fa 04 08lea     eax, [data_804fa71]  {"calloc failed"}Opcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: e8 f9 fb ff ffcall    sub_80495f0Opcode: c6 45 ff 00mov     byte [ebp-0x1 {var_5}], 0x0Opcode: eb 45jmp     0x8049a42Basic Block 5Opcode: 0f b6 45 ffmovzx   eax, byte [ebp-0x1 {var_5}]Opcode: 8b 5d f0mov     ebx, dword [ebp-0x10 {var_14}]Opcode: 8b 7d f4mov     edi, dword [ebp-0xc {var_10}]Opcode: 8b 75 f8mov     esi, dword [ebp-0x8 {var_c}]Opcode: 83 c4 18add     esp, 0x18 {var_4}Opcode: 5dpop     ebpOpcode: c3retn    Basic Block 6Opcode: 89 f8mov     eax, ediOpcode: a3 54 00 05 08mov     dword [data_8050054], eaxOpcode: e8 12 fc ff ffcall    sub_8049650Opcode: c6 45 ff 01mov     byte [ebp-0x1 {var_5}], 0x1Basic Block 7Opcode: a1 54 00 05 08mov     eax, dword [data_8050054]Opcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: e8 d8 2c 00 00call    sub_804c700Opcode: c7 05 54 00 05 08 00 00 00 00mov     dword [data_8050054], 0x0