Function Graph 0Basic Block 0Opcode: 55sub_8049970:Opcode: 55push    ebpOpcode: 89 e5mov     ebp, espOpcode: 83 ec 18sub     esp, 0x18 {var_1c}Opcode: 8b 45 08mov     eax, dword [ebp+0x8 {arg_4}]Opcode: 89 45 f8mov     dword [ebp-0x8 {var_c}], eaxOpcode: 81 7d f8 00 00 00 00cmp     dword [ebp-0x8 {var_c}], 0x0Opcode: 0f 85 17 00 00 00jne     0x80499a0Basic Block 1Opcode: 8b 45 f8mov     eax, dword [ebp-0x8 {var_c}]Opcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: e8 e5 5c 00 00call    sub_804f690Opcode: 05 01 00 00 00add     eax, 0x1Opcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: e8 68 35 00 00call    sub_804cf20Opcode: 89 45 f4mov     dword [ebp-0xc {var_10}], eaxOpcode: 3d 00 00 00 00cmp     eax, 0x0Opcode: 0f 85 17 00 00 00jne     0x80499ddBasic Block 2Opcode: 8d 05 ac 02 05 08lea     eax, [data_80502ac]  {"Invalid username"}Opcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: e8 e9 fb ff ffcall    sub_8049580Opcode: c6 45 ff 00mov     byte [ebp-0x1 {var_5}], 0x0Opcode: e9 8a 00 00 00jmp     0x8049a2aBasic Block 3Opcode: 8b 45 f4mov     eax, dword [ebp-0xc {var_10}]Opcode: 8b 4d f8mov     ecx, dword [ebp-0x8 {var_c}]Opcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: 89 4c 24 04mov     dword [esp+0x4 {var_18}], ecxOpcode: e8 f1 5a 00 00call    sub_804f4e0Opcode: 81 3d 7c 56 06 08 00 00 00 00cmp     dword [data_806567c], 0x0Opcode: 89 45 f0mov     dword [ebp-0x10 {var_14}], eaxOpcode: 0f 84 17 00 00 00je      0x8049a19Basic Block 4Opcode: 8d 05 81 00 05 08lea     eax, [data_8050081]  {"calloc failed"}Opcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: e8 ac fb ff ffcall    sub_8049580Opcode: c6 45 ff 00mov     byte [ebp-0x1 {var_5}], 0x0Opcode: e9 4d 00 00 00jmp     0x8049a2aBasic Block 5Opcode: 0f b6 45 ffmovzx   eax, byte [ebp-0x1 {var_5}]Opcode: 83 c4 18add     esp, 0x18 {var_4}Opcode: 5dpop     ebpOpcode: c3retn    Basic Block 6Opcode: 8b 45 f4mov     eax, dword [ebp-0xc {var_10}]Opcode: a3 7c 56 06 08mov     dword [data_806567c], eaxOpcode: e8 aa fb ff ffcall    sub_80495d0Opcode: c6 45 ff 01mov     byte [ebp-0x1 {var_5}], 0x1Basic Block 7Opcode: a1 7c 56 06 08mov     eax, dword [data_806567c]Opcode: 89 04 24mov     dword [esp {var_1c}], eaxOpcode: e8 71 32 00 00call    sub_804cc80Opcode: c7 05 7c 56 06 08 00 00 00 00mov     dword [data_806567c], 0x0