shitsco incomplete

memo.c

int global_permission; /* global_permission */

int sub_8048C30(int fd, char *buf, int size, char splitter) {
    char tmp_buf[]; /* var_1D */
    unsigned int ind = 0; /* register ebx */

    if (size <= 0) return ind;

    while (1) {
        if (read(fd, tmp_buf, 1) <= 0) return -1;

        if (splitter == tmp_buf[0]) return ind;

        buf[ind] = tmp_buf[0];
        ++ind;

        if (ind == size) return ind;
    }
}

sub_8048A50(char *input) {
    ebx = off_804C260;
    ebp = ebx;

    int ret = 0;
    char **arg_list = NULL;

    unsigned int pos = 0; /*register esi*/
    
    char *tmp; /* register edi */

    while (1) {
        if (strncmp(input, ebx, strlen(ebx)) == 0) {
            if ( ((int*) input)[0] ) tmp = input;

            while (tmp[0] == ' ') ++tmp;

            if (tmp[0] != '\0') {
	        char *tmp2; /* register eax */

                tmp2 = &tmp[1];

                while (1) {
                    if (tmp2[0] == '\0') {
                        tmp = tmp2;
                        break;
                    } else if (eax[0] == ' ') {
                        tmp = tmp2+1;
                        tmp2[0] = '\0';
                        break;
                    } else {
		        tmp = tmp2+1;
			tmp2 = tmp;
                    }
                }
            }

            char* tmp3 = tmp; /* register ebx */
            var_28 = ebp[0xc];
            arg_list = (char**)malloc(var_28*4+4);

            if (pos < var_28) {
                tmp = arg_list;

                while (1) {
                    char *tmp2 = tmp3; /* register eax */
                    while (tmp2[0] == ' ') tmp2++;

                    if (tmp2[0] != '\0') {
                        char *tmp5 = &tmp2[1]; /* register edx */

                        while (1) {
			    if (tmp5[0] == '\0') {
			        tmp3 = tmp5
		            } else if (tmp5[0] == '\0') {
                                tmp5[0] = '\0';
                                tmp3 = &tmp5[1];
				break;
		            }
                        }

                        if (tmp2) {
                            tmp[pos] = strdup(tmp2);
                            pos++;

                           if (ebp[0xC] > pos) {
                               continue;
                           } else {
			       tmp = tmp3;
			       arg_list[pos][0] == '\0';
			       if (ebp[0x8] <= global_permission) {
			           ebp[0x10](arg_list);
				   ret = 1;
				   break;
			       } else {
			           return 0;
			       }
			   }
                        } else {
			    tmp = tmp3;
			    arg_list[pos][0] = '\0';
			    if (ebp[0x8] <= global_permission) {
			        ebp[0x10](arg_list);
		                ret = 1;
	                	break;
		            } else {
			        return 0;
		            }
			        
                        }
                    } else {
		        tmp = tmp2;
			arg_list[pos][0] = '\0';
			if (ebp[0x8] <= global_permission) {
			    ebp[0x10](arg_list);
		            ret = 1;
			    break;
		        } else {
			    return 0;
		        }
		    }
                        
                }
            } else {
	        arg_list[pos][0] = '\0';
	        if (ebp[0x8] >= global_permission) {
	           ebp[0x10](arg_list);
	           ret = 1;
	        } else {
	           return 0;
	        }

	    }
        }

        ebp += 0x14;
	ebx = ebp[0];
        if (ebp[0] == 0) break;
    }

    if (arg_list) {
        free(arg_list);
    }

    return ret;
}


int main() { /* sub_80487E0 */
    char var1c[] = 
    byte_804C380 = 0x24;
    byte_804C3C0 = 0;
    sub_80489D0();
    puts(" oooooooo8 oooo        o88    o8                                       \n888         888ooooo   oooo o888oo  oooooooo8    ooooooo     ooooooo   \n 888oooooo  888   888   888  888   888ooooooo  888     888 888     888 \n        888 888   888   888  888           888 888         888     888 \no88oooo888 o888o o888o o888o  888o 88oooooo88    88ooo888    88ooo88");
    ___printf_chk(FILENO_STDOUT, "Welcome to Shitsco Internet Operating System (IOS)\nFor a command list, enter ?\n%c ", 0x24);
    fflush(stdout);

    while (1) {
        memset(var1c, '\0', 0x14);

        if (sub_8048C30(FILE_STDIN, var1c, 0x50, '\n') == -1) return 0; /* stack canary enabled*/

        if (sub_8048A50(var1c) == 0) {
      	    ___printf_chk(FILENO_STDOUT, "\n%s: Invalid command\n%c ", var1c,
	    0x24? 0x23);
        } else {
            ___printf_chk(FILENO_STDOUT, "%c ", 0x24?0x23);
        }

        fflush(stdout);
    }
}