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This commit is contained in:
Michael Brown
parent
41af7457a8
commit
56c995ff60
@ -1,31 +0,0 @@
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#include "cmdline.h"
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#include "cmdlinelib.h"
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#include <console.h>
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void cmdl_start()
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{
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cmd_line* cmd;
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cmd = cmdl_create();
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cmdl_setpropmt(cmd, "?>");
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cmdl_printf(cmd, "Welcome to Etherboot\n\n");
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while(!cmdl_getexit(cmd)){
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int i;
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printf("%s%s %s", cmdl_getoutput(cmd), cmdl_getprompt(cmd), cmdl_getbuffer(cmd));
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cmdl_addchar(cmd, getchar());
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/* TODO HACK temporary clear line */
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putchar(0xd);
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for(i=0; i < 79; i++){
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putchar(0x20);
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}
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putchar(0xd);
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}
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cmdl_free(cmd);
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}
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@ -1,272 +0,0 @@
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#include "cmdlinelib.h"
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#include <console.h>
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#include <malloc.h>
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#include <string.h>
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#include <stdarg.h>
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int cmdl_getexit(cmd_line* cmd)
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{
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if(cmdl_check(cmd) && !cmd->exit){
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return 0;
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}else{
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return 1;
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}
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}
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void cmdl_setexit(cmd_line* cmd, int exit)
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{
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if(cmdl_check(cmd)){
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cmd->exit = exit;
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}
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}
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int cmdl_printf(cmd_line* cmd, const char *format, ...)
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{
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int ret;
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char string[CMDL_OUTPUT_SIZE];
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va_list ap;
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va_start(ap, format);
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ret = vsprintf(string, format, ap);
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cmdl_addoutput_str(cmd, string);
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va_end(ap);
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return ret;
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}
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void cmdl_addoutput_str(cmd_line* cmd, char output[CMDL_OUTPUT_SIZE])
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{
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if(cmdl_check(cmd) && output != NULL){
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if(!cmd->has_output){
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cmdl_clearoutput(cmd);
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}
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strncat(cmd->output, output, CMDL_OUTPUT_SIZE);
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cmd->has_output = 1;
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}
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}
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char* cmdl_getoutput(cmd_line* cmd)
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{
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if(cmdl_check(cmd) && cmd->has_output){
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cmd->has_output = 0;
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return cmd->output;
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}else{
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return "";
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}
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}
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void cmdl_setpropmt(cmd_line* cmd, char prompt[CMDL_PROMPT_SIZE])
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{
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if(cmdl_check(cmd) && prompt != NULL){
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strncat(cmd->prompt, prompt, CMDL_PROMPT_SIZE);
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}
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}
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char *cmdl_getprompt(cmd_line* cmd)
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{
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if(cmdl_check(cmd)){
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return cmd->prompt;
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}else{
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return "";
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}
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}
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char* cmdl_getbuffer(cmd_line* cmd){
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if(cmdl_check(cmd)){
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return cmd->buffer;
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}else{
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return "";
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}
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}
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void cmdl_addchar(cmd_line* cmd, char in)
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{
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if(in >= 32){
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if(cmdl_check(cmd)){
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cmd->buffer[cmd->cursor] = in;
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cmdl_movecursor(cmd, CMDL_RIGHT);
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}
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}else{
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switch(in){
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case 0x08: /* Backspace */
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cmdl_delat(cmd, cmd->cursor);
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cmdl_movecursor(cmd, CMDL_LEFT);
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break;
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case 0x0a:
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case 0x0d: /* Enter */
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cmdl_exec(cmd);
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break;
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}
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}
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}
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void cmdl_exec(cmd_line* cmd)
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{
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char* command;
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cmdl_printf(cmd, "%s %s\n", cmd->prompt, cmd->buffer);
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command = cmdl_parse_getcmd(cmd);
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if(strlen(command) != 0){
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if(strcmp(command, "exit") == 0 || strcmp(command, "quit") == 0){
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cmdl_setexit(cmd, 1);
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}else if(strcmp(command, "help") == 0){
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cmdl_printf(cmd, "Don't panic\n");
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}else{
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cmdl_printf(cmd, "%s: unknown command\n", command);
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}
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}
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free(command);
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cmdl_clearbuffer(cmd);
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}
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char* cmdl_parse_getcmd(cmd_line* cmd){
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int i;
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char* ret;
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ret = (char*)malloc(1);
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ret[0] = 0;
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for(i=0; i < CMDL_BUFFER_SIZE - 1; i++){
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if(cmd->buffer[i + 1] == ' ' || cmd->buffer[i + 1] == '\0'){
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free(ret);
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ret = (char*)malloc(i+1);
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strncat(ret, cmd->buffer, i+1);
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break;
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}
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}
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return ret;
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}
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void cmdl_clearbuffer(cmd_line* cmd)
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{
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if(cmdl_check(cmd)){
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int i;
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cmd->cursor = 0;
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for(i=0; i < CMDL_BUFFER_SIZE; i++){
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cmd->buffer[i] = 0;
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}
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}
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}
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void cmdl_clearoutput(cmd_line* cmd)
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{
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if(cmdl_check(cmd)){
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int i;
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for(i=0; i < CMDL_OUTPUT_SIZE; i++){
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cmd->output[i] = 0;
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}
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}
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}
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void cmdl_movecursor(cmd_line* cmd, int direction)
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{
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if(cmdl_check(cmd)){
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switch(direction){
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case CMDL_LEFT:
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if(cmd->cursor > 0){
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cmd->cursor--;
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}
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break;
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case CMDL_RIGHT:
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if(cmd->cursor < CMDL_BUFFER_SIZE - 1){
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cmd->cursor++;
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}
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break;
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}
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}
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}
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void cmdl_delat(cmd_line* cmd, int at)
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{
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if(cmdl_check(cmd) && at < CMDL_BUFFER_SIZE - 1 && at >= 0){
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int i;
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for(i = at; i < CMDL_BUFFER_SIZE - 1; i++){
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cmd->buffer[i] = cmd->buffer[i + 1];
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}
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}
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}
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int cmdl_check(cmd_line* cmd)
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{
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if(
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cmd != NULL &&
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cmd->buffer != NULL &&
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cmd->prompt != NULL &&
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cmd->cursor >= 0 &&
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cmd->cursor < CMDL_BUFFER_SIZE - 1 &&
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cmd->buffer[CMDL_BUFFER_SIZE - 1] == 0 &&
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cmd->prompt[CMDL_PROMPT_SIZE - 1] == 0
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){
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return 1;
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}else{
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return 0;
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}
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}
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cmd_line* cmdl_create()
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{
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cmd_line* this;
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int i;
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// Initiate the command line
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this = (cmd_line*)malloc(sizeof(cmd_line));
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if(this == NULL){
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return NULL;
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}
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/* Allocate output buffer */
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this->output = (char*)malloc(CMDL_OUTPUT_SIZE);
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if(this->output == NULL){
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free(this);
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return NULL;
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}
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for(i = 0; i < CMDL_OUTPUT_SIZE; i++){
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this->output[i] = 0;
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}
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/* Allocate command line buffer */
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this->buffer = (char*)malloc(CMDL_BUFFER_SIZE);
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if(this->buffer == NULL){
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free(this);
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return NULL;
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}
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for(i = 0; i < CMDL_BUFFER_SIZE; i++){
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this->buffer[i] = 0;
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}
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/* Allocate prompt buffer */
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this->prompt = (char*)malloc(CMDL_PROMPT_SIZE);
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if(this->prompt == NULL){
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free(this);
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return NULL;
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}
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for(i = 0; i < CMDL_PROMPT_SIZE; i++){
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this->prompt[i] = 0;
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}
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/* Initiate cursor position */
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this->cursor = 0;
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this->has_output = 0;
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this->exit = 0;
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return this;
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}
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void cmdl_free(cmd_line* cmd)
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{
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free(cmd);
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}
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