source: mainline/uspace/app/bdsh/cmds/modules/unalias/unalias.c@ 02c6dcc

/* Automatically generated by mknewcmd on Fre Nov 30 05:45:31 CET 2018
 * This is machine generated output. The author of mknewcmd claims no
 * copyright over the contents of this file. Where legally permitted, the
 * contents herein are donated to the public domain.
 *
 * You should apply any license and copyright that you wish to this file,
 * replacing this header in its entirety. */

#include <stdio.h>
#include <stdlib.h>
#include <str.h>
#include <adt/odict.h>

#include "config.h"
#include "util.h"
#include "errors.h"
#include "entry.h"
#include "unalias.h"
#include "cmds.h"



static const char *cmdname = "unalias";



static void free_alias(odlink_t *alias_link)
{
        alias_t *data = odict_get_instance(alias_link, alias_t, odict);
        odict_remove(alias_link);

        free(data->name);
        free(data->value);
        free(data);
}


/* Dispays help for unalias in various levels */
void help_cmd_unalias(unsigned int level)
{
        printf("`%s' removes an alias or all aliases with -a\n", cmdname);
        return;
}


/* Main entry point for unalias, accepts an array of arguments */
int cmd_unalias(char **argv)
{

        if(argv[1] == NULL) {
                help_cmd_unalias(HELP_LONG);
                return CMD_SUCCESS;
        }

        size_t i;
        odlink_t *alias_link;

        for (i = 1; argv[i] != NULL; i++) {
                if (str_cmp(argv[i], "-a") == 0) {
                        alias_link = odict_first(&alias_dict);
                        while (alias_link != NULL) {
                                odlink_t *old_alias_link = alias_link;
                                alias_link = odict_next(old_alias_link, &alias_dict);
                                free_alias(old_alias_link);
                        }

                        return CMD_SUCCESS;
                }


                alias_link = odict_find_eq(&alias_dict, (void*)argv[i], NULL);

                if (alias_link == NULL) {
                        printf("%s: No alias '%s' found\n", cmdname, argv[i]);
                        return CMD_FAILURE;
                }

                free_alias(alias_link);
        }

        
        
        return CMD_SUCCESS;
}