76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* unset.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: syd <syd@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/03/11 18:26:29 by sadjigui #+# #+# */
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/* Updated: 2022/04/19 23:59:16 by syd ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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void unset_variable(t_s_cmd *cmd, int i)
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{
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int a;
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int b;
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char **tmp;
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a = 0;
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b = 0;
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tmp = malloc(sizeof(char *) * tab_len(cmd->big_cmd->env));
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if (!tmp)
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printf("no tmp\n");
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while (cmd->big_cmd->env[a])
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{
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if (a != i)
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{
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tmp[b] = ft_strdup(cmd->big_cmd->env[a]);
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b++;
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}
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a++;
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}
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tmp[b] = NULL;
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free_double(cmd->big_cmd->env);
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cmd->big_cmd->env = ft_dup_double(tmp);
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if (tmp)
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free_double(tmp);
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}
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int find_variable(char *variable, t_s_cmd *cmd)
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{
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int i;
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int j;
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i = find_it(cmd->big_cmd->env, variable);
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j = 0;
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if (check_variable(variable) == 1)
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{
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ft_putstr_fd("Minishell: unset: `", 2);
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ft_putstr_fd(variable, 2);
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ft_putstr_fd("': not a valid identifier\n", 2);
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return (check_return(cmd, 2));
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}
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if (i == tab_len(cmd->big_cmd->env))
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return (check_return(cmd, 2));
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unset_variable(cmd, i);
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return (check_return(cmd, 1));
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}
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int ft_unset(t_s_cmd *cmd)
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{
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int i;
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int j;
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i = 1;
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j = 0;
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while (cmd->args[i])
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{
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j = find_variable(cmd->args[i], cmd);
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i++;
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}
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return (j);
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}
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